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.
