In the 1970s, chemist James Lovelock and microbiologist Lynn Margulis developed the Gaia hypothesis(盖亚假说): all organic and inorganic components on the planet are part of one self-regulating system, working to maintain life on earth. Scientists agree that we need take significant action to control emissions(排放). But where scientists and popular movements have thus far failed to convince the world to act, it seems that Mother Earth may have succeeded, with the never-before-seen COVID-19. COVID-19 is estimated to have reduced carbon dioxide emission in China by a quarter. It caused factories to shut down, and slowed construction activities. Recent analysis shows a 70 percent drop in flights in February compared with January. And even getting into a car and going to a restaurant, shopping mall, or concert poses a risk of infection, which means that many people are choosing to stay at home and are consuming less, resulting in a significant reduction of their carbon footprints. Of course, China and the rest of the world will hope to restart normal production and consumption as soon as the virus is under control. However, some positive measures have already been taken as a result of COVID-19. As the virus is thought to originate from wildlife, Chinese authorities are revising laws and regulations regarding the country's massive wildlife trade in order to prevent future epidemics(流行病)—a win for biodiversity. The deaths of thousands of people worldwide should also serve as a lasting reminder of the fragility of life. We humans frequently ignore or repress uncomfortable thoughts of death and extinction. We would rather get on with our lives as usual, thinking everything will somehow work out in the end. Only in the face of suffering and death are we forced to view the bigger, longer-term perspective—and this is what is needed in order to react appropriately to climate change. COVID-19 has sent alarm bells ringing throughout the world. 1.What does the author mention the Gaia hypothesis for? A.To tell the main idea of the text. B.To introduce the topic for discussion. C.To show the need to protect the planet. D.To stress the importance of self-regulating system. 2.What is the second paragraph mainly about? A.The unexpected benefit of COVID-19. B.The economic influence of COVID-19. C.The preventive measures for COVID-19. D.The possible causes of COVID-19. 3.What does the underlined word "repress" in the last paragraph refer to? A.Control. B.Hold. C.Vary. D.Test. 4.What does the writer want to tell us in the text? A.It's urgent to fight the virus. B.The virus has caused many deaths. C.Life is fragile in face of disasters. D.Action is needed for climate change.
Four Inspiring Movies Forrest Gump(1992) Forrest Gump is a simple man with a low IQ but good intentions. This movie follows the fictional story in which the simple man makes his way through some of the more turbulent(动荡的)times from the 1960s through 1980s. This film took home six Oscars, inspired a “Weird Al” song, and proves that a big heart is the most important thing. It's a Wonderful Life(1946) No movie list would be complete without a nod to the past. Let's go with this Christmas classic, about a man with serious financial troubles who intends to commit suicide(自杀)by jumping off a bridge. His guardian angel Clarence Odbody stops him and tells him what life would have been like for those close to him had he never been born. Realizing how much he means to others, he rushes back home and all sorts of happy, inspirational, Christmassy things happen. Dead Poet's Society(1990) John Keating(Robin Williams)is a high school English literature teacher at a famous all-male boarding school who gets into trouble with the school administration after encouraging his students to challenge authority and think for themselves. It is certainly inspirational, if not also frustratingly sad. A Beautiful Mind(2001) This movie tells the story of John Nash(Russell Crowe), a professor at Princeton, a US university, who revolutionized the field of game theory and fell into madness as a result of paranoid schizophrenia(精神分裂症). With the love and support of his family as well as the help of medical professionals, he managed to overcome his mental illness and continued to make contributions to the field of mathematics. 1.What can we know about It's a Wonderful Life? A.It proves a big heart important. B.It has a happy ending. C.It tells a story of friendship. D.It is famous for the leading role. 2.Which film are Robin Williams' fans more likely to watch? A.Forrest Gump. B.I's a Wonderful Life. C.Dead Poet's Society. D.A Beautiful Mind. 3.At the end of A Beautiful Mind,the professor___________. A.became a famous expert in psychology B.got his family's support for studying game theory C.gained lots of experience in treating schizophrenia D.defeated the disease and went on to pursue maths
假定你是李华。你的英国朋友George来信,询问你的近况及上大学准备报考什么专业。 请你回复邮件,内容包括: 1. 正在认真备考; 2.学医学专业; 3.报考理由。 注意:1.词数100左右; 2.可以适当增加细节,以使行文连贯。 Dear George, ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Yours, Li Hua
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共 有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。 增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。 删除:把多余的词用斜线(\)划掉。 修改:在错的词下画一横线,并在该词下面写出修改后的词。 注意:1.每处错误及其修改均仅限一词。 2.只允许修改10处,多者(从第11处起)不计分。 Dear Jim, How is everything going? Known that you are curious about Peking Opera, I'm more than glad to introduce it to you. Dating back to late 18th century, Peking Opera becomes fully developed and recognized during the Qing Dynasty. As a combination of music, vocal performance or dance, Peking Opera can offer audience with a feast for the eyes and ears. Performer wear colorful costumes and make-ups, that are in line with the personalities of the roles that they play. I high recommend you visit the Mei Lanfang Theater to see a Peking Opera show. Hopefully, my introduction has helped you well understand Peking Opera than before. If you have any question, don't hesitate to ask myself.
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。 Most of us have recently experienced quarantine (隔离) to minimize the risk of meeting somebody who may be carrying the virus. It is certain 1. being under quarantine is no fun. However, with our access to food, 2. (deliver) services and the entertainment 3. (offer) by the internet, we're actually very lucky. Let's take a quick look at the history of quarantines. The idea of quarantining sick people dates 4. ancient times. Yet the word "quarantine" first came into use in the 14th century Europe during the Black Death. People were dropping like flies from the mysterious disease, and as the death toll climbed into the millions—eventually killing 5. (approximate) half of the European population, cities began to take 6. (measure) to protect their citizens. The port city of Venice, Italy, was an important trading center with ships 7. (come) from all corners of the Earth every day. If a ship 8. (suspect) to be harboring the plague (瘟疫),it was sent to 9. offshore quarantine and ordered to wait there for 40 days when those abroad either recovered, or 10. (likely), died. The waiting period gave rise to the term quarantinario, from the Italian word for 40.
I was once the guide on a wildlife-photography trip to the North Pole, where wildlife is _____ . After two days of travel, we reached a fjord (峡湾)and ___ several seals resting on the ice. I wished to get a picture of a seal as it came up for breath at a hole. Therefore, I __ my camera and a motion sensor near the edge of a hole. At two in the morning, a colleague __ us. He had noticed a polar bear approaching in the distance. We ran to the __ of the boat to see what would happen. At first the bear walked toward the boat. Then it turned and __ directly for my camera. The motion sensor __ to its movement, starting the camera to take pictures. The bear ____ the camera, gently sniffing it. __ the bear knocked the camera into the hole! My camera and all those __ pictures is appeared beneath the ____. ____, a year later, I joined a similar trip to the same spot. I obtained __ to bring a remotely operated vehicle (ROV) and a colleague to __ it. We would try to __ the camera. When we arrived back and set out our search, we __ technical difficulties almost immediately and had to pull the ROV out of water twice. However, on the third try, the ROV caught hold of the camera. As we eventually got the camera up, we __ loudly. I managed to take the memory card out and later __ all 149 photos. Regaining that camera is the most satisfying __ of my career. I have never experienced such a __ of excitement when we pulled that camera out of the water. 1.A.normal B.fierce C.abundant D.fragile 2.A.spotted B.ignored C.disturbed D.hunted 3.A.lost B.buried C.presented D.anchored 4.A.saved B.aroused C.assisted D.dismissed 5.A.rope B.sail C.bow D.bottom 6.A.applied B.waited C.headed D.rose 7.A.contributed B.saw C.led D.reacted 8.A.circled B.squeezed C.crashed D.hid 9.A.Admittedly B.Deliberately C.Desperately D.Suddenly 10.A.elegant B.precious C.fashionable D.festive 11.A.bear B.ice C.boat D.glacier 12.A.Fortunately B.Regularly C.Naturally D.Eventually 13.A.advantage B.information C.permission D.knowledge 14.A.purchase B.pilot C.process D.promote 15.A.repair B.use C.remove D.find 16.A.ran into B.cleared away C.looked into D.figured out 17.A.sighed B.screamed C.complained D.prayed 18.A.recovered B.exposed C.created D.ruined 19.A.solution B.assessment C.donation D.accomplishment 20.A.mixture B.lack C.burst D.touch
While marathon study sessions may be unavoidable sometimes, do your best to manage your time effectively. Reduce your workload by studying more efficiently. Before you start studying, always read your task sheet to make sure you’re focusing on the right topics. 1. This saves you time looking it up. Finally, pick out the most important information, so you can study it first. 2. Make sure you have everything you need, so you won't need to get up every few minutes to get something. Neatly place your textbooks, pens, notebook and other study materials in your study space. This way you can easily get what you need without taking an unplanned break. Plan out your study sessions in advance. Think about the time you'll need for each task, add 10% extra time for insurance, and then schedule blocks for your tasks. 3. Remember to include short breaks every hour or so. Break up difficult tasks into smaller steps. Tasks such as “Study for History Final” or “Write Term Paper” can seem unapproachable. Instead of getting confused and upset, divide big tasks into small ones If you’re studying for a final of a course, start by looking over past tests and quizzes. 4.Smaller study tasks may also include creating outlines that summarize textbook chapters. Do your best to space out your study sessions instead of cramming (突击).Whenever possible, give yourself time to study a little bit at a time. It’s better to study for 3 separate 3-hour sessions instead of 1 marathon 9-hour session. 5. A.Choose a quiet spot for studying. B.Prepare your area before you start studying. C.Schedule your toughest and most important tasks first. D.Study difficult subjects first to get them out of the way. E.Then divide the course into its units, and study one unit at a time. F.Additionally, ask your instructor to explain any topic that confuses you. G.Multiple shorter sessions will help you remember more information in the long run.
Around 45% of plastic waste is recycled annually in the UK and is on the increase. However, one of the problems with present plastic recycling methods is that you end up with a lower-quality plastic with worse properties (特性)than the original. This means that plastic drink bottles cannot simply be recycled into new drink bottles continuously, but instead are used for other lower-grade products like park benches. Now, British scientists have developed a new method of chemical recycling. They use lower temperatures and more environmentally-friendly starting chemicals than previous methods to turn plastics back into their constituent chemical molecules (分子).In this way, they can be used to make new plastics of the same quality as the original. "Most plastic is now recycled using mechanical methods, where they are transformed into liquids before being made into something new," said a professor named Matthew Jones. "The problem is, melting plastic changes its properties and reduces the quality. Out method of chemical recycling overcomes this problem. Then plastics can be used all over again without losing any properties?" The researchers are recycling some kinds of plastics, including plant-based PLA, a plastic used for food packaging and PET, which is used for drink bottles. So far, the technology has only been demonstrated on a small range. However, scientists are now working to produce larger quantities of starting chemicals. "There is no single solution to the problem of plastic waste — the approach has to be a combination of reducing, reusing and recycling. Our method of chemical recycling could allow carbon to be recycled endlessly rather than digging more up from the ground in the form of fossil fuels, or letting it into the atmosphere as a greenhouse gas," said Dr. Paul McKeown from the University of Bath. 1.What is the problem with the present plastic recycling? A.The quality of recycled plastics declines. B.Plastic drink bottles cannot be recycled. C.The amount of plastic waste is increasing. D.Recycled lower-grade products sell badly. 2.How do scientists recycle plastic waste with the new method? A.By transforming it into fuels. B.By heating it into liquid state. C.By keeping its original properties. D.By changing its molecule structure. 3.What can we learn from what Dr. Paul McKeown said? A.Fossil fuels are endless resources. B.The plastic waste problem has no solution. C.Recycled carbon leads to greenhouse gases. D.The chemical recycling is environment-friendly. 4.In which part of the website can we find the text? A.Business. B.Tech & Science. C.Lifestyle. D.Arts & Culture
Yoga is an ancient physical and spiritual practice originating in India. The word“yoga” comes from Sanskrit (梵文)and means to join or to unite, symbolizing the union of body and mind. Today it is practiced in various forms around the world and continues to grow in popularity. Recognizing its universal appeal, the United Nations declared 21 June as the International Day of Yoga in 2014 to raise awareness worldwide of the many benefits of practicing yoga. Yoga is an invaluable gift from an ancient tradition. It’s not just about exercise but a way to discover the sense of oneness with yourself nature and the world. There is no written record of who invented yoga. Yoga practitioners (从业者)passed down the principles to their students. The earliest written record of yoga is generally believed to have been written by Patanjali, an Indian master who lived somewhere between 2,000 and 2,500 years ago. Various yoga types give you multiple choices. Hatha yoga is the most widely practiced type and is excellent for beginners. It is gentle with slow and smooth movements. Kundalini yoga combines a singing session besides body and mental control. Bikram yoga is practiced in a heated room. It is to loosen muscles and to sweat to clean the body and remove symptoms of disease and pain. Ashtanga yoga is taught as a difficult workout where you move quickly from one gesture to another to build strength and patience. In recent years, the World Health Organization has urged countries to help their citizens reduce physical inactivity, which is among the top ten leading causes of death worldwide, and a key risk factor for non-communicable diseases, such as cancer and diabetes. Yoga is a proper exercise. It is known for its ability to ease stress and anxiety. It may also help reduce several risk factors for heart diseases and promote a better sleep. 1.Why did the United Nations set the International Day of Yoga? A.To promote the research into Sanskrit. B.To help people know more about India. C.To popularize Yoga practice worldwide. D.To give a declaration on cultural diversity. 2.What is Paragraph 2 mainly about? A.The principles of yoga. B.The history of yoga. C.The benefits of yoga. D.An Indian yoga master. 3.What will you choose if you’re looking for a challenging exercise? A.Hatha yoga. B.Kundalini yoga. C.Bikram yoga. D.Ashtanga yoga. 4.What can we infer from the last paragraph? A.Physical inactivity causes deadly diseases・ B.Yoga can help prevent communicable diseases. C.Little or no exercise puts people’s health at risk. D.Yoga can be a cure for many kinds of diseases.
Macinley Butson was just 16 years old when she first had the idea to try and protect women from more — than — necessary radiation during breast cancer treatments—and now, her invention could be a game-changer in the medical field. Butson, whose father works in medical physics, has always been interested in science. But she only began researching the harmful side effects of radiation treatment after her father discussed his experience with ineffective cancer treatments in his work. Since Butson had also recently lost a relative to breast cancer, she felt inspired to conduct her own research on the subject. She tried to begin her medical research by consulting scientific journals, but she found their academic terms almost impossible to understand. She then turned to the Internet to find videos that taught how to read scientific journals. As she went deeper in her research, she stumbled upon a key bit of information: copper (铜)has been shown to be effective at protecting skin from radiation. An idea hit this Australian teen as she was viewing a film on medieval wars in her 10th grade history class. When she saw the scaled (鳞片) patterns of the mail (盔甲),she was inspired to create a wearable protective tool out of copper. She then headed back online and watched videos on how to put together tiny scales. She made her own flexible scale-mail which she now calls SMART: Scale Mail for Radiation Therapy. When her invention was tested in a laboratory setting, it reduced surface exposure to unnecessary radiation by 75%. And now Butson is working on getting her SMART into clinical settings for use. 1.Why did Macinley Butson start her research? A.To assist her father with his work. B.To save her relative from cancer. C.To publish some articles in journals. D.To find effective ways to treat cancer. 2.What does the underlined phrase “stumbled upon" in Paragraph 3 probably mean? A.Came across. B.Missed. C.Passed on. D.Required. 3.Where did Macinley Buston get inspiration for her invention? A.Videos online. B.Scientific journals. C.History textbooks. D.Soldiers defensive clothes. 4.Which of the following best describes Macinley Buston? A.Stubborn. B.Creative. C.Selfless. D.Considerate.
Being the world’s most trusted volunteer abroad organization, IVHQ (International Volunteer Headquarters)offers volunteer programs in more than 50 destinations. Here are a few of them. Marine Conservation Program Volunteers of this program work in Queensland, Australia. You will join conservation efforts like collecting sea rubbish. Requirements: Volunteers need to be 18 years or over. Able to swim. Speak fluent English. Present a police check. Have travel insurance. Complete our free pre-departure training. Fees: 1 week $1,010, 2 weeks $2,020, 3 weeks $2,980 Shriners Hospitals for Children Program Volunteers in Shriners Hospitals for Children in Honolulu, Hawaii need to pick up patients, deliver supplies and tutor patients. Requirements: Volunteers must be at least 16 years old. Available to volunteer two hours per week for at least five months. Agree to a police check and a drug test. We offer free training upon your arrival. Fees: No fees are needed. Youth Support Program Volunteers are placed in community centers of New Orleans, Louisiana, USA to provide tutoring and positive activities for the youth. You can also help organizations by beautifying spaces, re-organizing classrooms and preparing materials. Requirements: Volunteers need to be 18 years or over. Have travel insurance and provide a police check. The training fee is included in the program fee. Fees: 1 week $520, 2 weeks $825, 3 weeks $1,125 Pre-School English Program Volunteers working in Cusco, Peru will teach English in pre-schools with younger children of 4 to 5 years old. Requirements: 18 years and over. No previous teaching experience is required, but a basic understanding of Spanish is. Emergency contact, police check and resume (简历)are required. Training will be conducted online for free. Fees: 1 week, $320,2 weeks $550, 3 weeks $735 1.Which program suits a 17-year-old volunteer? A.Marine Conservation Program. B.Shriners Hospitals for Children Program C.Youth Support Program. D.Pre-School English Program. 2.What should the volunteers do in Youth Support Program? A.Collect sea rubbish. B.Pick up and tutor patients. C.Re-organize classrooms. D.Teach the English language. 3.What is required for the programs in Australia and Peru? A.Police check. B.Travel insurance. C.Drug test. D.Emergency contact.
假定你是李华。你的英国朋友George来信,询问你的近况及上大学准备报考什么专业。 请你回复邮件,内容包括: 1. 正在认真备考; 2.学医学专业; 3.报考理由。 注意:1.词数100左右; 2.可以适当增加细节,以使行文连贯。 Dear George, ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Yours, Li Hua
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共 有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。 增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。 删除:把多余的词用斜线(\)划掉。 修改:在错的词下画一横线,并在该词下面写出修改后的词。 注意:1.每处错误及其修改均仅限一词。 2.只允许修改10处,多者(从第11处起)不计分。 Dear Jim, How is everything going? Known that you are curious about Peking Opera, I'm more than glad to introduce it to you. Dating back to late 18th century, Peking Opera becomes fully developed and recognized during the Qing Dynasty. As a combination of music, vocal performance or dance, Peking Opera can offer audience with a feast for the eyes and ears. Performer wear colorful costumes and make-ups, that are in line with the personalities of the roles that they play. I high recommend you visit the Mei Lanfang Theater to see a Peking Opera show. Hopefully, my introduction has helped you well understand Peking Opera than before. If you have any question, don't hesitate to ask myself.
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。 Most of us have recently experienced quarantine (隔离) to minimize the risk of meeting somebody who may be carrying the virus. It is certain 1. being under quarantine is no fun. However, with our access to food, 2. (deliver) services and the entertainment 3. (offer) by the internet, we're actually very lucky. Let's take a quick look at the history of quarantines. The idea of quarantining sick people dates 4. ancient times. Yet the word "quarantine" first came into use in the 14th century Europe during the Black Death. People were dropping like flies from the mysterious disease, and as the death toll climbed into the millions—eventually killing 5. (approximate) half of the European population, cities began to take 6. (measure) to protect their citizens. The port city of Venice, Italy, was an important trading center with ships 7. (come) from all corners of the Earth every day. If a ship 8. (suspect) to be harboring the plague (瘟疫),it was sent to 9. offshore quarantine and ordered to wait there for 40 days when those abroad either recovered, or 10. (likely), died. The waiting period gave rise to the term quarantinario, from the Italian word for 40.
I was once the guide on a wildlife-photography trip to the North Pole, where wildlife is _____ . After two days of travel, we reached a fjord (峡湾)and ___ several seals resting on the ice. I wished to get a picture of a seal as it came up for breath at a hole. Therefore, I __ my camera and a motion sensor near the edge of a hole. At two in the morning, a colleague __ us. He had noticed a polar bear approaching in the distance. We ran to the __ of the boat to see what would happen. At first the bear walked toward the boat. Then it turned and __ directly for my camera. The motion sensor __ to its movement, starting the camera to take pictures. The bear ____ the camera, gently sniffing it. __ the bear knocked the camera into the hole! My camera and all those __ pictures is appeared beneath the ____. ____, a year later, I joined a similar trip to the same spot. I obtained __ to bring a remotely operated vehicle (ROV) and a colleague to __ it. We would try to __ the camera. When we arrived back and set out our search, we __ technical difficulties almost immediately and had to pull the ROV out of water twice. However, on the third try, the ROV caught hold of the camera. As we eventually got the camera up, we __ loudly. I managed to take the memory card out and later __ all 149 photos. Regaining that camera is the most satisfying __ of my career. I have never experienced such a __ of excitement when we pulled that camera out of the water. 1.A.normal B.fierce C.abundant D.fragile 2.A.spotted B.ignored C.disturbed D.hunted 3.A.lost B.buried C.presented D.anchored 4.A.saved B.aroused C.assisted D.dismissed 5.A.rope B.sail C.bow D.bottom 6.A.applied B.waited C.headed D.rose 7.A.contributed B.saw C.led D.reacted 8.A.circled B.squeezed C.crashed D.hid 9.A.Admittedly B.Deliberately C.Desperately D.Suddenly 10.A.elegant B.precious C.fashionable D.festive 11.A.bear B.ice C.boat D.glacier 12.A.Fortunately B.Regularly C.Naturally D.Eventually 13.A.advantage B.information C.permission D.knowledge 14.A.purchase B.pilot C.process D.promote 15.A.repair B.use C.remove D.find 16.A.ran into B.cleared away C.looked into D.figured out 17.A.sighed B.screamed C.complained D.prayed 18.A.recovered B.exposed C.created D.ruined 19.A.solution B.assessment C.donation D.accomplishment 20.A.mixture B.lack C.burst D.touch
While marathon study sessions may be unavoidable sometimes, do your best to manage your time effectively. Reduce your workload by studying more efficiently. Before you start studying, always read your task sheet to make sure you’re focusing on the right topics. 1. This saves you time looking it up. Finally, pick out the most important information, so you can study it first. 2. Make sure you have everything you need, so you won't need to get up every few minutes to get something. Neatly place your textbooks, pens, notebook and other study materials in your study space. This way you can easily get what you need without taking an unplanned break. Plan out your study sessions in advance. Think about the time you'll need for each task, add 10% extra time for insurance, and then schedule blocks for your tasks. 3. Remember to include short breaks every hour or so. Break up difficult tasks into smaller steps. Tasks such as “Study for History Final” or “Write Term Paper” can seem unapproachable. Instead of getting confused and upset, divide big tasks into small ones If you’re studying for a final of a course, start by looking over past tests and quizzes. 4.Smaller study tasks may also include creating outlines that summarize textbook chapters. Do your best to space out your study sessions instead of cramming (突击).Whenever possible, give yourself time to study a little bit at a time. It’s better to study for 3 separate 3-hour sessions instead of 1 marathon 9-hour session. 5. A.Choose a quiet spot for studying. B.Prepare your area before you start studying. C.Schedule your toughest and most important tasks first. D.Study difficult subjects first to get them out of the way. E.Then divide the course into its units, and study one unit at a time. F.Additionally, ask your instructor to explain any topic that confuses you. G.Multiple shorter sessions will help you remember more information in the long run.
Around 45% of plastic waste is recycled annually in the UK and is on the increase. However, one of the problems with present plastic recycling methods is that you end up with a lower-quality plastic with worse properties (特性)than the original. This means that plastic drink bottles cannot simply be recycled into new drink bottles continuously, but instead are used for other lower-grade products like park benches. Now, British scientists have developed a new method of chemical recycling. They use lower temperatures and more environmentally-friendly starting chemicals than previous methods to turn plastics back into their constituent chemical molecules (分子).In this way, they can be used to make new plastics of the same quality as the original. "Most plastic is now recycled using mechanical methods, where they are transformed into liquids before being made into something new," said a professor named Matthew Jones. "The problem is, melting plastic changes its properties and reduces the quality. Out method of chemical recycling overcomes this problem. Then plastics can be used all over again without losing any properties?" The researchers are recycling some kinds of plastics, including plant-based PLA, a plastic used for food packaging and PET, which is used for drink bottles. So far, the technology has only been demonstrated on a small range. However, scientists are now working to produce larger quantities of starting chemicals. "There is no single solution to the problem of plastic waste — the approach has to be a combination of reducing, reusing and recycling. Our method of chemical recycling could allow carbon to be recycled endlessly rather than digging more up from the ground in the form of fossil fuels, or letting it into the atmosphere as a greenhouse gas," said Dr. Paul McKeown from the University of Bath. 1.What is the problem with the present plastic recycling? A.The quality of recycled plastics declines. B.Plastic drink bottles cannot be recycled. C.The amount of plastic waste is increasing. D.Recycled lower-grade products sell badly. 2.How do scientists recycle plastic waste with the new method? A.By transforming it into fuels. B.By heating it into liquid state. C.By keeping its original properties. D.By changing its molecule structure. 3.What can we learn from what Dr. Paul McKeown said? A.Fossil fuels are endless resources. B.The plastic waste problem has no solution. C.Recycled carbon leads to greenhouse gases. D.The chemical recycling is environment-friendly. 4.In which part of the website can we find the text? A.Business. B.Tech & Science. C.Lifestyle. D.Arts & Culture
Yoga is an ancient physical and spiritual practice originating in India. The word“yoga” comes from Sanskrit (梵文)and means to join or to unite, symbolizing the union of body and mind. Today it is practiced in various forms around the world and continues to grow in popularity. Recognizing its universal appeal, the United Nations declared 21 June as the International Day of Yoga in 2014 to raise awareness worldwide of the many benefits of practicing yoga. Yoga is an invaluable gift from an ancient tradition. It’s not just about exercise but a way to discover the sense of oneness with yourself nature and the world. There is no written record of who invented yoga. Yoga practitioners (从业者)passed down the principles to their students. The earliest written record of yoga is generally believed to have been written by Patanjali, an Indian master who lived somewhere between 2,000 and 2,500 years ago. Various yoga types give you multiple choices. Hatha yoga is the most widely practiced type and is excellent for beginners. It is gentle with slow and smooth movements. Kundalini yoga combines a singing session besides body and mental control. Bikram yoga is practiced in a heated room. It is to loosen muscles and to sweat to clean the body and remove symptoms of disease and pain. Ashtanga yoga is taught as a difficult workout where you move quickly from one gesture to another to build strength and patience. In recent years, the World Health Organization has urged countries to help their citizens reduce physical inactivity, which is among the top ten leading causes of death worldwide, and a key risk factor for non-communicable diseases, such as cancer and diabetes. Yoga is a proper exercise. It is known for its ability to ease stress and anxiety. It may also help reduce several risk factors for heart diseases and promote a better sleep. 1.Why did the United Nations set the International Day of Yoga? A.To promote the research into Sanskrit. B.To help people know more about India. C.To popularize Yoga practice worldwide. D.To give a declaration on cultural diversity. 2.What is Paragraph 2 mainly about? A.The principles of yoga. B.The history of yoga. C.The benefits of yoga. D.An Indian yoga master. 3.What will you choose if you’re looking for a challenging exercise? A.Hatha yoga. B.Kundalini yoga. C.Bikram yoga. D.Ashtanga yoga. 4.What can we infer from the last paragraph? A.Physical inactivity causes deadly diseases・ B.Yoga can help prevent communicable diseases. C.Little or no exercise puts people’s health at risk. D.Yoga can be a cure for many kinds of diseases.
Macinley Butson was just 16 years old when she first had the idea to try and protect women from more — than — necessary radiation during breast cancer treatments—and now, her invention could be a game-changer in the medical field. Butson, whose father works in medical physics, has always been interested in science. But she only began researching the harmful side effects of radiation treatment after her father discussed his experience with ineffective cancer treatments in his work. Since Butson had also recently lost a relative to breast cancer, she felt inspired to conduct her own research on the subject. She tried to begin her medical research by consulting scientific journals, but she found their academic terms almost impossible to understand. She then turned to the Internet to find videos that taught how to read scientific journals. As she went deeper in her research, she stumbled upon a key bit of information: copper (铜)has been shown to be effective at protecting skin from radiation. An idea hit this Australian teen as she was viewing a film on medieval wars in her 10th grade history class. When she saw the scaled (鳞片) patterns of the mail (盔甲),she was inspired to create a wearable protective tool out of copper. She then headed back online and watched videos on how to put together tiny scales. She made her own flexible scale-mail which she now calls SMART: Scale Mail for Radiation Therapy. When her invention was tested in a laboratory setting, it reduced surface exposure to unnecessary radiation by 75%. And now Butson is working on getting her SMART into clinical settings for use. 1.Why did Macinley Butson start her research? A.To assist her father with his work. B.To save her relative from cancer. C.To publish some articles in journals. D.To find effective ways to treat cancer. 2.What does the underlined phrase “stumbled upon" in Paragraph 3 probably mean? A.Came across. B.Missed. C.Passed on. D.Required. 3.Where did Macinley Buston get inspiration for her invention? A.Videos online. B.Scientific journals. C.History textbooks. D.Soldiers defensive clothes. 4.Which of the following best describes Macinley Buston? A.Stubborn. B.Creative. C.Selfless. D.Considerate.
Being the world’s most trusted volunteer abroad organization, IVHQ (International Volunteer Headquarters)offers volunteer programs in more than 50 destinations. Here are a few of them. Marine Conservation Program Volunteers of this program work in Queensland, Australia. You will join conservation efforts like collecting sea rubbish. Requirements: Volunteers need to be 18 years or over. Able to swim. Speak fluent English. Present a police check. Have travel insurance. Complete our free pre-departure training. Fees: 1 week $1,010, 2 weeks $2,020, 3 weeks $2,980 Shriners Hospitals for Children Program Volunteers in Shriners Hospitals for Children in Honolulu, Hawaii need to pick up patients, deliver supplies and tutor patients. Requirements: Volunteers must be at least 16 years old. Available to volunteer two hours per week for at least five months. Agree to a police check and a drug test. We offer free training upon your arrival. Fees: No fees are needed. Youth Support Program Volunteers are placed in community centers of New Orleans, Louisiana, USA to provide tutoring and positive activities for the youth. You can also help organizations by beautifying spaces, re-organizing classrooms and preparing materials. Requirements: Volunteers need to be 18 years or over. Have travel insurance and provide a police check. The training fee is included in the program fee. Fees: 1 week $520, 2 weeks $825, 3 weeks $1,125 Pre-School English Program Volunteers working in Cusco, Peru will teach English in pre-schools with younger children of 4 to 5 years old. Requirements: 18 years and over. No previous teaching experience is required, but a basic understanding of Spanish is. Emergency contact, police check and resume (简历)are required. Training will be conducted online for free. Fees: 1 week, $320,2 weeks $550, 3 weeks $735 1.Which program suits a 17-year-old volunteer? A.Marine Conservation Program. B.Shriners Hospitals for Children Program C.Youth Support Program. D.Pre-School English Program. 2.What should the volunteers do in Youth Support Program? A.Collect sea rubbish. B.Pick up and tutor patients. C.Re-organize classrooms. D.Teach the English language. 3.What is required for the programs in Australia and Peru? A.Police check. B.Travel insurance. C.Drug test. D.Emergency contact.
假定你是校学生会主席李华,上周末学生会举办了中国诗词翻译大赛,得到了外教Thomas的大力帮助,请你给Thomas写一封邮件,表示感谢,内容包括: 1.感谢外教的帮助; 2.同学们的收获; 注意:1.词数100左右; 2.可以适当增加细节,以使行文连贯。 中国诗词翻译大赛 Chinese Poem Translation Competition Dear Thomas, __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处,每处错误仅涉及一个单词的增加、删除或修改。 增加:在缺词处加一个漏字符号(^),并在其下面写出该加的词。 删除:把多余的词用斜线(\)划掉。 修改:在错的词下画一横线,并在该词下面写出修改后的词。 注意:1、每处错误及其修改均仅限一词; 2、只允许修改10处,多者(从第11处起)不计分。 How time flies! It's been a year since a day I said goodbye to my British friend,Toby. Yesterday,I received a present from him,and memories of him came flooded back. I first saw him in front of our classroom in the first day of school two years ago. He was an exchange student who would study at his school for one year. I was deep impressed the moment I saw him,since he seemed so much humorous and outgoing. During his first few month,I helped him by offering my advice and explaining some difficult Chinese. We often hang out together at weekends,that was a good chance for us to share our cultures. I wish meet him again someday.
阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。 While much attention is paid to the outside of a bag-its design, brand and, unavoidably, its price tag, most people tends1.(ignore) the rich and complex internal life hidden in it. When a woman2.(step) out in the 1740s, on a regular basis, her private3.(belong) would have included a watch, money, jewelry and perhaps some food. These are4.she chose to take out. By the 1860s, she may have included scissors, a purse, and a magnifying glass. She would have worn these in the form of a chatelaine-a series of small purses5.(attach) to the waist. What many women carry in their bags some three centuries later is6.(remarkable) unchanged. One friend lists the contents; A book, a phone, cosmetics, keys, etc. “The content is so important,” says Lucia Savi, a bag designer, “Hand bags had to be at least bigger than7.$5 note, as bank notes came in, ”Now we carry phones wherever we go, so it is time that phones8.(determine) design. More surprisingly, no matter how ordinary the bag looks, 9.can communicate something about the owner. So what your bag can convey10.(be) your status, or your belief.
My community and state are still recovering from the catastrophe that hit recently. A wall of storms with hurricane force winds_______late on a Friday evening, knocking down trees,_______roads, damaging homes, and destroying power lines. Hundreds of thousands of people_______found themselves in the_______without water, electricity, air conditioning, telephones, Internet, and television. They found themselves cut_______from the modern world bearing 37℃plus heat with no help and no idea_______it would be over. The most amazing thing happened,_________,as the reality of the crisis sank in:it brought out the best in us. While there were a few_________acts, they were overwhelmed(淹没) by the wave of_______and sympathy that came from the hearts of so many. People shared their food, ice, and gasoline. People who still had power opened their homes to those who had________.People________to clear roads and homes of________trees. Selfless power crews worked around the clock to repair the damage and restore electricity. People________on front porches(门廊) to talk. Strangers came together as one family to help one another in this time of great need. It was such a(an) ________seeing all these people acting like this under such tough circumstances. Life's________strike all of us from time to time. No one is________We all get hurt. We all get challenged. We all get squeezed by________during our days here. How we respond to them, though, is________us. We can let them bring out the ________in us or we can let them bring out the best in us. We can react to them like demons of selfishness or like angels of love. May you always bring the best from your heart and soul to whatever life may________at you then. 1.A.twisted B.shook C.struck D.dropped 2.A.blocking B.ending C.locking D.building 3.A.accidentally B.naturally C.gradually D.suddenly 4.A.distance B.coldness C.dark D.street 5.A.down B.off C.in D.away 6.A.when B.where C.why D.how 7.A.therefore B.thus C.besides D.however 8.A.lovely B.selfish C.foolish D.kind 9.A.sadness B.loneliness C.love D.luck 10.A.one B.none C.them D.it 11.A.worked out B.turned out C.rushed out D.watched out 12.A.fallen B.planted C.missed D.protected 13.A.approached B.continued C.left D.gathered 14.A.joy B.hurt C.pity D.affection 15.A.doubts B.disasters C.fears D.questions 16.A.disturbed B.spared C.included D.involved 17.A.confidence B.condition C.experiences D.difficulties 18.A.due to B.back to C.up to D.according to 19.A.worst B.highest C.most D.largest 20.A.laugh B.glance C.point D.throw
Few days ago the government closed the schools for the virus. You were effectively your children's teacher those days. That might seem a bit daunting(令人气馁的), but I'm here to tell you that it's possible. Here are my top tips. Don't try and copy the school system. 1.So cast that aside. Stop worrying about it. Teach in the way that you would teach and in the way that suits you and your child. Think about something to do with timetabling. For many of us, a timetable is absolutely essential(必要的).2.Don't look on social media at the timetable that your neighbor has posted;that's all colour-coded and terrifying. Just think of one that suits you and stick to that. Have a breath of fresh air in your garden. If you have your own garden, remember that playing in the garden, playing in the mud is education.3.Fresh air will make them learn better. Sunshine will be better for them. 4. As a home educator, if there's a math problem that they're struggling with, I can sit down with them, explain the concept, and make sure they've understood it. This is something that not all children get in the school system. And this is something that you can really make the most of, so cherish the opportunity. Take advantage of the massive wealth of online resources. There're absolutely loads of things on the Internet. There are sites dedicated to home education. There's Twinkl, which is a really good teacher resource site. There's Conquer Math, which is a brilliant daily math programme.5.Think of it as something that your children can use to gather useful information. So you can work with those online tutors together to educate your children. Tutoring your children at home is a really good opportunity for you to get to know your children, and you might learn something about yourself in the process. A.Value the one-to-one time that this experience will give you. B.Don't worry about what has been happening at school particularly. C.You need to know what is suitable for them, and what excites them. D.The way that teachers teach your children is very different from yours. E.Draw up a plan that matches your working hours and their studying hours. F.Your children don't have to sit at their desks all day, staring at math books. G.Don't think of Internet as something that your children are going to be glued to all day.
If you live in southwest Virginia, don’t be surprised at the sight of a drone(无人机) winging its way, doing airborne delivery over your neighborhood. On October 20,2019,wing,an American multinational company, began the most advanced trials of commercial drone delivery in Virginia. Residents can now use a smartphone app to order items from Wing partners such as Sugar Magnolia. A Wing drone never sets down at destinations, instead gently lowering the package with a rope outside the customer's door. Though Wing is the first American company to receive Federal Aviation Administration(FAA)approval to use commercial drones as a widespread service. it is not the only one. On October 22,2019,multinational delivery company UPS, which had also received FAA approval for its drone fleet, announced it would soon begin trial deliveries of goods from health care company CVS. Meanwhile, ridesharing company, Uber, which had partnered with McDonald's, hoped to use its drones to deliver food to hungry customers in San Diego, CA, before the end of 2019. Amazon also plans on testing its trial deliveries of goods in a yet-to-be-determined location in the upcoming months. Every company's drones can carry packages weighing up to five pounds, and the series of trial are hortative, but widespread drone delivery still has many challenges. These include basic issues like finding places for drones to land, reducing noise pollution, and even ensuring the drones don't run into each other while airborne. To help sped up the process, NASA announced the Urban Air Mobility Grand Challenge. The competition challenges airspace service providers to find creative solutions to the issues, so that drone deliveries can become a reality soon. “We are moving fast,” said NASA Administrator Jim Bridenstine. “We want to see by 2028 at least one city--maybe more than one--have the ability to control hundreds of drone delivery systems. They could be carrying goods, doing thousands of missions every day.” 1.What can be inferred from the passage? A.It's impossible to crash other drones during the delivery. B.People can order items from Wing directly with an app. C.More companies are expected to try out their drone delivery. D.Drones deliver items by gently bringing them down to the ground. 2.What does the underlined part “hortative” in Paragraph 4 mean? A.Encouraging. B.Relaxing. C.Creative. D.Relative. 3.What's Jim Bridenstine's expectation of drone delivery? A.To increase the speed of airborne delivery. B.To see drone delivery systems widely used. C.To be able to control the airline system. D.To provide more solutions to goods delivery. 4.Which is the best title for the text? A.The Future of Drone Delivery B.How to Achieve Drone Delivery in 2028 C.The Advantages of Using Drone Delivery D.Drone Delivery May Become a Reality in the US
I had been living with Dino and his family for ten days or so, who lived and worked in the rainforest. They were the “bad guys”, burning much of the western Amazon to tun it into cattle farms. They were also some of the nicest and warmest hosts. They are a family trying to survive in a very tough environment through hard work. Their view and understanding of the problems the Amazon faces are different from mine. I see the Amazon as an extraordinary valuable life that should be treasured and protected at all costs-the world needs it, and we all need it. However, the Dinos see the Amazon as a vast, lasting resource that feeds them. After talking extent win them, I realized their respect for it was as deep as my own: they just saw it very differently. Cattle farming in the Amazon is perhaps mainly responsible for the fires we are seeing now. It is an industry of cutting forest, burning it and turning it to cattle farms. Fires spread throughout the Amazon every year as a result of that practice. Putting cattle on the land means replacing trees with animals that produce damaging levels of greenhouse gases. This is just about the most stupid thing humans can do. One morning after a fire, I returned to the land. I felt as though I had seen the blue smoke from those blackened tree trunks that remained upright, which are memorials to human stupidity. The problems the Amazon faces are perhaps more complex now than ever before, but they are curable. We need to decide where and how we appoint and apply values based on sensible economic models that favor both the farmer and the forest. One of the issues facing the Brazilian Amazon now is a loosening of rules by the current administration which has opened up more land for deforestation(毁林) and burning. This could be disastrous, both for the Amazon and the rest of the world. 1.What does Paragraph 2 mainly talk about? A.The consequences of cattle farming. B.The main cause of forest fires. C.The causes of greenhouse gases. D.The importance of cattle farming. 2.How did the author feel when returning to the land after a fire? A.It helped the author recall his memory about the land. B.It reminded us of our foolishness of destroying the land. C.It's not surprising to see the land destroyed by the fire. D.It's amazing to see the trees keep straight after the fire. 3.Which of the following statements is true? A.The writer and Dino respected the Amazon equally in different ways. B.Cattle farming is not to blame for the fires happening in the Amazon. C.The problems the Amazon faces are more complex and can't be solved. D.The Dinos are considered to be bad for burning the forest to make a fortune. 4.What should the Brazilian government do to solve the Amazon problems? A.Prevent the deeds of burning. B.Offer more land. C.Take stricter measures. D.Appoint economic models.
Last year, Wolf Cukier, who is 17 years old, spent his summer vacation as few other rising seniors have:he helped discover a planet-TOI 1338b, the newly identified world orbiting two stars which are more than 1, 300 light years away. Last July, just after he finished his junior year at Scarsdale High school in Scarsdale, New York, Wolf started an internship(实习期) at NASA's Goddard Space Flight Center in Greenbelt, Maryland. During the first week of the internship, as be combed through data that had been flagged by citizen-scientists. he fixed attention on s system that included two orbiting stars. He identified a body in that system that was later proved as a planet about 6.9 times as large as Earth. while knowing this inspiring discovery, his colleagues immediately gave the system a name, TOI 1338b. According to scientific research, any dip in the brightness of a single star is a good indication that a planet has crossed in front of it. However, TOI 1338b was particularly complicated because it involved two stars-a large star ere the planers track was easy to detect, and a smaller one where the planet's track was so small that it was not observable. Many people think that wolf is a lucky dog, but as a matter of fact, it is not just a coincidence. When he studied in Junior High School, he had shown great passion on astronomy and was devoted to studying it. Wolf plans to study astrophysics(天体物理学) when he starts college in September. When it came to his contribution to the discovery of the new world. he emphasized it was the team work in the verification process rather than his own effort that counted. 1.What did Wolf do last year? A.He was employed by NASA. B.He finished his senior year in High School. C.He spent his summer vacation like other seniors. D.He helped find a new planet named TOI 1338b. 2.How can we describe Wolf? A.Modest and hardworking. B.Ambitious and casual. C.Considerate and lucky. D.Optimistic and helpful. 3.What can be inferred according to the text? A.The planet was named by Wolf. B.The planet is the same size as the Earth. C.The planet was easy to discover as there are two stars involved. D.Team work in the verification process was highly valued by Wolf. 4.Where is this text most likely from? A.A diary. B.A magazine. C.A guidebook. D.A scientific novel.
Wuhan, capital of Hubei province, is one of China's most important hubs of transportation, with a long history and rich cultures. If you have a chance to travel there, you'll never miss the following tourist attractions. Yellow Crane Tower Bordering on the Yangtze River and located on the top of the Snake Hill, the Yellow Crane Tower is one of the three most famous towers on the south bank of the Yangtze River. First built in 223 AD, the tower has a history of over 1700 years. It is not only an important scenic spot, but also a symbol of “piping times of peace”in people's minds. Scholars in the past dynasties wrote hundreds of poems and writings in praise of the magnificent Yellow Crane Tower. Guiyuan Temple Guiyuan Temple, situated on Cuiwei Street, is one of the four biggest temples in Hubei as well as an important Buddhist(佛教的) temple in China. It was first built in the early Qing dynasty by two monks. Guiyuan Temple is famous not only for spreading Buddhism throughout the whole country, but also for its perfect architecture and excellent sculpture. In 1956, Guiyuan Temple was listed as a preserved antique unit of Hubei province and in 1983. it was appointed as one of the key Buddhist temples of Han nationality district in China. East Lake The lake covers 33 square kilometers and stretches far into the distance. Ancient temples around the lake make the scenic spot more historic. All the six areas of the East Lake have in common green hills, clear waters, an abundance of woods and typical style of Chu Culture. Millions of residents here get a lot of fun out of going for a walk along the lakeside. 1.Which of the following about Yellow Crane Tower is true? A.It is on the north bank of Yangtze River. B.It was built not more than 1000 years ago. C.It was built by two monks in Qing dynasty. D.It was often written in many scholars' poems. 2.What is special about Guiyuan Temple? A.It is one of the four biggest temples in China. B.It combines religion and architecture quite well. C.It was listed as a preserved antique unit of Hubei in 1983. D.It is surrounded by green hills, clean waters and abundant woods. 3.What's the author's purpose of writing this text? A.To list some historical events of Wuhan. B.To introduce some temples of Wuhan. C.To advertise some tourist spots of Wuhan. D.To recommend some lifestyles of Wuhan.
请阅读下面文字,并按照要求用英语写一篇150词左右的文章。 Due to the outbreak of COVID-19, schools across the country have put off opening. For more than two months, students have been taking online classes at home.
(写作内容) 1. 用约30个单词概述上述信息的主要内容; 2. 结合上述信息,谈谈“自律”的重要性(至少两点); 3. 就如何培养“自律”,提出你的建议(至少两点)。 (写作要求) 1. 写作过程中不能直接引用原文语句; 2. 作文中不能出现真实姓名和学校名称; 3. 不必写标题。 (评分标准) 内容完整,语言规范,语篇连贯,词数适当。 _______________________________________________________________________________________________________________________________________________________________________________________________________________
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