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。
The most effective way 1.(fight) global warming is to plant lots of trees, a study has said. And there is enough space for new trees to cover 3.5 million square miles, Swiss 2.(scientist) reported in Science. That area is roughly the size 3.the United States.
The study calculated that over the decades, those new trees could suck up nearly 830 billion tons of heat-trapping carbon dioxide (CO2) from the atmosphere. That’s about as much carbon pollution 4.humans have caused in the past 25 years.
Six nations with the most room for new trees 5.(be) Russia, the United States, Canada, Australia, Brazil and China.
Study co-author Thomas Crowther 6.(figure) that there were other more effective ways besides 7.(cut) emissions ( 排放物 ), such as people switching from meat-eating to vegetarianism. But, he said, tree planting was by far the cheapest climate change solution.
Thomas Lovejoy, a George Mason University conservation biologist, called it “a good news story” because planting trees would also help promote the 8.(protect) of biodiversity.
“It is not easy or realistic to think the world will suddenly start planting trees everywhere, although many groups have started,” Crowther said. “It’s 9.(certain) a monumental challenge, 10. is exactly what people are saying about the problem of climate change.”
Most children acquire the same eye color or a similar shaped nose from their parents. ___, I’ve got much more: a love for ____and an insatiable (无法满足的) curiosity which has ____me well throughout my academic career. My father, an electrical engineer, taught me to ___the world with a curious mind, ____seeking to learn more. I watched him for hours as he worked on diagrams at home, ___what all the various symbols and line meant. I was ___by technology and wanted to know how and why things worked the way they did.
“How does this toaster work?” “What’s inside this camera?” I was never ___with the simplified answers that my parents gave to these questions. So I discovered many ____for myself by exploring and experimenting.
My mother, a first grade teacher, noticed my curiosity and ___my childhood explorations. She gave me piles of mind-opening children’s books, which I ____read.
I was given a remarkable amount of _____at a young age. When I was 8, my parents _____an old computer with the _____of letting me loose on it. I was ____. Motivated (激励) by curiosity, I ____it at once and learned how to use the computer’s operating system. With my father’s help and an old programming book by my side, I even ____simple video games for my younger brother to play.
My parents also taught me to be ___and self-motivated by providing opportunities for me to learn by trial and error.
I hope to ___applying what I’ve learned from my parents to all aspects of my life, exploring the world around me. It's part of who I am, and what _____me to become successful and happy.
1.A.Instead B.Therefore C.Otherwise D.However
2.A.cooking B.learning C.gardening D.cycling
3.A.served B.known C.defended D.wished
4.A.change B.protect C.explore D.control
5.A.suddenly B.possibly C.recently D.constantly
6.A.forgetting B.believing C.wondering D.regretting
7.A.attracted B.supported C.threatened D.adopted
8.A.familiar B.satisfied C.concerned D.careful
9.A.tasks B.examples C.answers D.differences
10.A.received B.introduced C.remembered D.encouraged
11.A.willingly B.previously C.rarely D.lately
12.A.advice B.honor C.freedom D.attention
13.A.bought B.returned C.saw D.wanted
14.A.help B.intention C.power D.discovery
15.A.ashamed B.confused C.annoyed D.thrilled
16.A.shared B.studied C.spotted D.stopped
17.A.created B.played C.reported D.discussed
18.A.ordinary B.non-violent C.independent D.grateful
19.A.suggest B.continue C.admit D.imagine
20.A.warns B.considers C.invites D.drives
From kindergarten to graduate school there is a nearly unlimited supply of learning resources (资源) for students. These resources come in a variety of forms, all serving a single purpose—to improve learning outcomes for students.
1.Educators spend a good deal of time searching for learning resources and are in a position to be approached by educational publishers and software developers. Educators may use open source material from well-known universities like Harvard and MIT or offer learning resources from independent publishers to their students.
While there are a variety of learning resources for all education levels, early-childhood learning resources are probably the most common. A wide range of websites, software and mobile applications are aimed at children and serve as learning resources in math, reading, science, writing, etc. 2.
Learning resources for students in high school and college are also abundant. 3.While there may be a large number of websites and computer applications that serve as an ancillary (辅助的) resource for a given subject, a teacher may recommend a reference book, biography, or literary work as a resource relevant to the specific area of study.
Many learning resources are designed to reinforce (充实) material taught in the class or simply provide additional help for struggling students. 4.The American Disability Act provides the requirements for educational resources for disabled students in the United States, just as the Special Educational Needs and Disability Act in the UK provides for its special needs students.
5.Libraries, teachers and other educators, higher learning institutions, and the Internet are all excellent sources for learning resources in nearly every area of study and educational development.
A.Learning resources help teachers save preparation time.
B.Discovering learning resources for students is not difficult.
C.Many of these products are used in classrooms across the globe.
D.But there are also learning resources for students with disabilities.
E.Students can’t learn from one type of instructional material alone.
F.Teachers and professors are the leading experts on learning resources.
G.They often consist of a balance of technology and traditional textbooks.
At 9 pm, Li Zhigang was sitting in front of his fruit shop on a busy street in central Shanghai’s Xujiahui area, removing the thin plastic film from rotten pears and oranges. “This is so much trouble!” he complained while throwing the plastic into one garbage can and the fruit into another. In the past, Li simply threw away what could not be sold with the packaging on, but from July 1, 2019, he could be fined up to 200 yuan for doing so.
Like Li, many of the tens of millions of residents in Shanghai have been complaining recently that the introduction of compulsory household garbage sorting is making life difficult, but at the same time have been having to learn to do it.
Calls for garbage sorting have brought little progress in China in the past decade, but Shanghai is leading a fresh start for the world’s second-largest waste producer. “If we say China is now classifying its waste, then it’s Shanghai that is really doing it,” said Chen Liwen, an environmentalist who has devoted herself to waste classification for the past decade. “It’s starting late, compared with the US or Japan, but if it’s successful in such a big city with such a huge population, it will mean a lot for the world,” she said. While the measures force a change of habits for most people, they bring opportunities for some. Du Huanzheng, director of the Recycling Economy Institute at Tongji University, said waste sorting was important for China’s recycling industry. “Without proper classification, a lot of garbage that can be recycled is burned, and that’s a pity,” he said. “After being classified, things suitable to be stored and transported can now be recycled.” Besides, prices of small sortable garbage cans for home use have increased on e-commerce (电子商务) platforms, while garbage can makers are also developing smart models in response to new needs. What’s more, garbage sorting is also an important part of a country’s soft power. “For China, it is an opportunity to improve its international reputation. However, it is a long process that requires effort from government, enterprises and individuals (个人),” Du said.
1.What do the underlined words “doing so” in Paragraph 1 refer to?
A.Packaging fruit with plastic film.
B.Selling rotten fruit to customers.
C.Throwing rotten fruit into a garbage can.
D.Throwing fruit and its packaging into the same garbage can.
2.What does the author want to show by writing Paragraph 2?
A.The new garbage sorting rules in Shanghai are strict.
B.Garbage sorting puts Shanghai residents into trouble.
C.It is not easy to learn how to sort garbage.
D.It’s necessary to sort garbage in Shanghai.
3.What is Chen Liwen’s attitude towards garbage sorting in China?
A.Hopeful. B.Doubtful.
C.Uninterested. D.Worried.
4.Which of the following is mentioned as a benefit of garbage sorting?
A.It helps reduce the burden of individuals.
B.It makes smart garbage cans affordable.
C.It helps improve China’s hard power.
D.It avoids recyclable things being burned.
Would you give your Social Security Number to the clerk at the grocery store? Of course not, right? Yet, if you’re like most people, you wouldn’t hesitate to give out a different, but equally important number to the same person.
Experts now say that your cellphone number may be more pivotal than any other personal information in the eyes of spammers (垃圾邮件发送者) and identity thieves. In other words, instead of handing it out, you should guard that cellphone number with your life.
Today, your cellphone number will likely be with you for a very long time. That means if spammers get your cellphone number, it will be much harder to get rid of them. It also means that over the years, your cellphone number will be linked to a lot of personal information—from contact lists（通讯录) to bank card numbers, all information that hackers（黑客）would love to get their hands on.
A few years ago, German security researcher Karsten Nohl showed what he could obtain using only a person’s cellphone number. California Congressman Ted Lieu was given a new cellphone for a day and Nohl was given that cellphone number. Using just that number, Nohl was able to find Lieu’s location and movements throughout Los Angeles, read his emails and text messages, and record phone calls between Lieu and his staff. And Nohl did all of this from his office in Berlin using just a cellphone number.
Still think it’s a good idea to post your number on a noticeboard?
It’s safe to assume that Nohl is an expert when it comes to hacking, but even the ordinary thief can use your cellphone number to cause harm to you. When you sign up for an account online, you usually provide your email address and a password (密码). But if you forget that password, many of these companies will send you a password retrieval code (检码）via your cellphone. Let’s say you post something for sale online and you include your name, email, and cellphone number. You’ve now given a potential thief everything he needs to hack into any of your online accounts. Therefore, it just makes sense to protect yourself by guarding that number as closely as you would guard any other personal information.
1.What does the underlined word “pivotal” in Paragraph 2 most probably mean?
A.Accessible. B.Familiar.
C.Important. D.Manageable.
2.What does the third paragraph mainly talk about?
A.Why people should protect their cellphone numbers.
B.Why people seldom change their cellphone numbers.
C.How to protect our personal information.
D.How to get rid of spammers.
3.What did Karsten Nohl’s show intend to prove?
A.Nohl is a real expert in hacking.
B.It’s necessary to fight against hackers.
C.Lieu’s new cellphone has powerful functions.
D.It’s easy to hack information via cellphone numbers.
4.What can we infer from the last paragraph?
A.It’s a good idea to sell something online.
B.It’s necessary to register several accounts online.
C.It’s common for people to forget their passwords.
D.It’s risky to post your cellphone number online.
In the fall of 2017, when Paula Aldridge needed to get a job, she found herself at a crossroads. The 50-year-old wasn’t sure she would ever work again, due to health issues.
But Aldridge’s life and career journey started to turn around after she connected with Goodwill of Central Iowa’s skills training programs. These programs are tailored to help people develop the kind of specific, real-world skills they need to get and keep a job, through a combination of detailed instruction and hands-on experience.
When Aldridge first connected with Goodwill in September 2017, she was dealing with several barriers to immediate employment. Transportation was challenging, as she didn’t have a driver’s license or own a car. Aldridge also had a limited work history with long employment gaps (间断) , meaning she missed out on learning important skills, such as working a credit card machine. On top of that, her physical health issues were also a problem.
According to Kayleigh Duff, a career specialist at Goodwill of Central Iowa, the biggest barrier Aldridge had to overcome was from within. “She said outwardly that she had all of this confidence and that she knew how strong a worker she was, but I don’t think she truly believed it herself.”
Thankfully, Aldridge had plenty of people on her side to provide motivation and guidance. She originally started off in the food service training program but was eager to enter the retail (零售) skills program, since she had previously worked at the Salvation Army and Subway. When Aldridge mentioned her interest in retail, Duff recognized that her go-getting attitude would be a perfect match for the program.
The seven-week retail skills training is a systematic program combining classroom instruction with on- the-job experience at a Goodwill store. As Aldridge progressed and graduated from the program, she became more confident in her abilities.
Duff said it was great to see how Aldridge grew into the devoted, driven worker she is today. “She has this strong desire, this longing to succeed. And she knows that she’s able to do that, although she has fallen short in the past.”
1.What can be learned about Goodwill’s training programs?
A.They combine theory with practice.
B.They guarantee a good job for participants.
C.They are designed mainly for the unemployed.
D.They were established in the autumn of 2017.
2.What was the biggest problem Aldridge faced according to Duff?
A.Poor health. B.Poor working skills.
C.A lack of confidence. D.A lack of a driver’s license.
3.Why did Aldridge change her training program?
A.She wanted to attend a more systematic program.
B.She wanted to gain some hands-on experience.
C.She was more interested in retail.
D.She followed Duff’s advice.
4.What’s the main idea of the text?
A.A 50-year-old devotes herself to Goodwill.
B.Goodwill helps a 50-year-old turn her life around.
C.Goodwill training programs spring up around the world.
D.Success is closely linked to appropriate training programs.
