1 . If you were to throw, say, a banana peel out of your car while driving along the motorway, that would be a completely harmless action, due to the fact that it’s part of a fruit—right? Actually, no. A banana peel can take up to two years to be naturally processed, and with a third of motorists admitting to littering while driving, that’s a whole lot of discarded banana peels. An orange peel and a cigarette butt has a similar biodegrading (生物降解) term to that of a banana peel, but in cans last up to 100 years; and plastic bottles last forever, as do glass bottles.
Which of the following has the longest biodegrading term?
| A．Glass bottles. | B．Tin cans. |
| C．Cigarette butts. | D．Banana peels |
2 . In the 1750s the Swedish chemist Karl Scheele was the first person to find a way to produce phosphorus. He in fact discovered eight more chemical elements including chlorine , though he didn't get any praise for them. He was a very clever scientist, but his one failing was a curious habit of tasting a little of every substance he worked with. This risky practice finally caught up with him, and in 1786 he was found dead in his laboratory surrounded by a large number of dangerous chemicals, any of which might have been responsible for his death.
What do we know about Karl Scheele according to this text?
| A．He was killed by tasting phosphorus. |
| B．He killed himself with some dangerous chemicals. |
| C．His habit of tasting chemicals might account for his death. |
| D．He got a large number of honors for discovering many chemical elements. |
3 . How many times did you wash your hands or bathe yesterday?
Finding: Seniors, on average, bathe fewer than 3 days a week. And nearly 30% wash their hands only 4 times a day—half of the number doctors recommend.
Doctors suggest that people should wash their hands ________.
| A．twice a day | B．eight times a day |
| C．four times a day | D．three times a day |
4 . China Science and Technology Museum has teamed up with space experts to spark students’ interest in the final frontier by opening an experience center to share knowledge about the country’s Tiangong space station.
The museum says it hopes to help young people understand how the space station works and foster greater interest in China’s manned space program. The experience center’s first event on Monday attracted space enthusiasts of all ages. To satisfy the students’ curiosity, the museum even had a replica (复制品) of the Tiangong space station’s core module on exhibit.
“I learned that the core module of Tiangong actually has three parts. I thought it was just one,” said Lang Xujun, an eight-year-old student from Yuxin School in Beijing.
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1. Why has the museum cooperated with experts?
| A．To open an experience center in space. |
| B．To develop students’ interest in space. |
| C．To display China’s great achievements in space. |
| D．To attract more people to take part in the event. |
| A．Differently. | B．Critically. | C．Curiously. | D．Enthusiastically. |
5 . So the Columbia researchers came up with a system called Easy Secure Photos (ESP), which they presented at a recent conference. “We wanted to see if we could make it possible to encrypt data while using existing services,” says computer scientist Jason Nieh, one of the developers of ESP. “Everyone wants to stay with Google Photos and not have to register on a new encrypted-image cloud storage service.”
What’s the advantage of ESP?
| A．It can provide clear images. |
| B．It can decrease the upload time. |
| C．It can classify images automatically. |
| D．It can encrypt data on the original platform. |
6 . Aside from being beautiful and promoting growth, the team observed that due to these lights, they needed to use 50 percent less pesticides (杀虫剂) on the crop. This is because this specific recipe of lights activated the defense system of the plants. And as it works on all crops, not just leeks, Roosegaarde foresees a way to reduce the use of pesticides on many other plants. And his project will soon be touring 40 countries, and sending its dancing lights across the world.
Why are less pesticides needed on the crop with the lights alongside?
| A．The lights make it more resistant to pests. |
| B．The lights kill off most of the pests on it. |
| C．The lights are too bright for pests to tolerate. |
| D．The lights are equipped with a defense system. |
7 . Companies which sell liquids like drinks or shampoo rely on bottles for their packaging. Usually these bottles are made of plastic or glass. But as customers have become more concerned about the environment, many companies have begun working to develop paper bottles.
Paper bottles are easy to recycle. They also weigh less than glass or plastic, meaning they’ll require less energy to produce and to move around. They’re usually made from wood pulp (纸浆), which is pressed into a mold (模具) to create the bottle shape. Since paper is soft and easy to mold, companies can design their bottles to take almost any shape they choose.
What’s the main purpose of developing paper bottles?
| A．To make packaging less heavy. |
| B．To reduce the use of raw materials. |
| C．To be more environmentally friendly. |
| D．To cut down on the costs of packaging. |
8 . Mr. Ferguson earned a bachelor’s degree in 1961 at Holy Cross University, where he developed an interest in painting. He served in the Army for two years until being discharged in 1963, and after studying briefly at the Boston Museum School, registered at the Chicago Art Institute, where he studied until 1966, when he entered the University of Illinois Chicago, where he obtained a bachelor’s degree in 1966 in fine arts. Mr. Ferguson developed his interest and skills as a sculptor after moving to Baltimore to do further studies at the Maryland Institute College of Art’s Rinehart School of Sculpture, from which he graduated in 1971 with a master’s degree in fine arts.
What did Mr. Ferguson do first after serving in the army?
| A．He studied at the Boston Museum School. |
| B．He got a bachelor’s degree in fine arts. |
| C．He entered the University of Illinois Chicago. |
| D．He continued his studies at the Maryland Institute College. |
9 . The nominee were announced on March15. The winners were announced during the awards ceremony. Chinese filmmaker Chloe Zhao became the first woman of color to win Best Director and the second woman overall after Kathryn Bigelow, who claimed the title at the 2010 ceremony for directing The Hurt Locker. Best Actress winner Frances McDormand became the seventh person to win a third acting Oscar and the second to win Best Actress three times. As a producer of Nomadland, she also was the first person in history to win Oscars for both acting and producing for the same film. Best Supporting Actress winner Youn Yuh-jung became the first Korean performer and second Asian female to win an Oscar after Miyoshi Umeki, who won the same category for her role in 1957’s Sayonara.
Who is the first female to win the Academy Award for Best Director?
| A．Chloe Zhao. | B．Kathryn Bigelow. | C．Youn Yuh-jung | D．Frances McDormand. |
10 . On Wednesday, 16-year-old Aava Murto took over for a day as prime minister of Finland. The move was part of an international effort called “Girls Takeover”, designed to bring attention to the rights of girls. Finland’s prime minister, Sanna Marin, handed over the position to Aava and showed her how things worked. Though Aava didn’t make any laws, she did meet with politicians, speak to reporters, and give a speech.
Why was Aava Murto able to serve as Finland’s prime minister for one day?
| A．Because of a global program. | B．Because of her endless efforts. |
| C．Because of a regular exchange. | D．Because of her closeness to the government. |
