30.根据以下材料，回答21-25题People often complain that plastics are too durable. Water bottles, shopping bags, and other trash litter the planet, from Mount Everest to the Mariana Trench, because plastics are everywhere and don't break down easily. But some plastic materials change over time. They crack and frizzle. They "weep" out additives. They melt into sludge. All of which creates huge headaches for institutions, such as museums, trying to preserve culturally important objects. The variety of plastic objects at risk is dizzying: early radios, avant-garde sculptures, celluloid animation stills from Disney films, the first artificial heart.Certain artifacts are especially vulnerable because some pioneers in plastic art didn't always know how to mix ingredients properly, says Thea van Oosten, a polymer chemist who, until retiring a few years ago, worked for decades at the Cultural Heritage Agency of the Netherlands. "It's like baking a cake: If you don't have exact amounts, it goes wrong," she says. "The object you make is already a time bomb."And sometimes, it's not the artist's fault. In the 1960s, the Italian artist Picro Gilardi began to create hundreds of bright, colorful foam pieces. Those pieces included small beds of roses and other items as well as a few dozen "nature carpets" - large rectangles decorated with foam pumpkins, cabbages, and watermelons. He wanted viewers to walk around on the carpets - which meant they had to be durable.Unfortunately, the polyurethane foam he used is inherently unstable. It's especially vulnerable to light damage, and by the mid-1990s, Gilardi's pumpkins, roses, and other figures were splitting and crumbling. Museums locked some of them away in the dark. So van Oosten and her colleagues worked to preserve Gilardi's sculptures. They infused some with stabilizing and consolidating chemicals. Van Oosten calls those chemicals "sunscreens" because their goal was to prevent further light damage and rebuild worn polymer fibers. She is proud that several sculptures have even gone on display again, albeit sometimes beneath protective cases.Despite success stories like van Oosten's, preservation of plastics will likely get harder. Old objects continue to deteriorate. Worse, biodegradable plastics designed to disintegrate, are increasingly common. And more is at stake here than individual objects. Joana Lia Ferreira, an assistant professor of conservation and restoration at the NOVA School of Science and Technology, notes that archaeologists first defined the great material ages of human history - Stone Age, Iron Age, and so on - after examining artifacts in museums. We now live in an age of plastic, she says, "and what we decide to collect today, what we decide to preserve ... will have a strong impact on how in the future we'll be seen.Museums stopped exhibiting some of Gilardi’s artworks to____. ? A.B. A. keep them from hurting visitors.? C.D. B. duplicate them for future display.? E.F. C. have their ingredients analyzed.? G.H. D. prevent them from further damage

语法填空In ancient China lived an artist　　　　1　　　　 paintings were almost lifelike. The artist's reputation had made him proud. One day the emperor wanted to get his portrait(画像) done so he called all great artists to come and present their 　　　　2　　　　 (fine) work, so that he could choose the best. The artist was sure he would 　　　　3　　　　(choose), but when he presented his masterpiece to the emperor's chief minister, the old man laughed. The wise old man told him to travel to the Li River - perhaps he could learn a little from the greatest artist in the world.Filled with 　　　　4　　　　(curious), the artist packed his bags and left. 　　　　5　　　　he asked the villagers on the banks of the river where he could find the legendary(传奇的) artist, they smiled and　　　　6　　　　(point) down the river. The next morning he hired a boat and set out 　　　　7　　　　(find) the well﹣known painter. As the small boat moved 　　　　8　　　　(gentle) along the river he was left speechless by the mountains being silently reflected in the water. He passed milky white waterfalls and mountains in many shades of blue. And when he saw the mists rising from the river and the soft clouds 　　　　9　　　　(surround) the mountain tops, he was reduced to tears. The artist was finally humbled(谦卑) by the greatest artist　　　　10　　　　earth, Mother Nature.

PART I Vocabulary (20%)Directions: Please match the words in column A with the meanings in column B.Column A1. disorder2. intake3. symptom4. depression5. insomnia6. infection7. stroke8. lung cancer9. air pollution10. global crisis11. coughColumn Ba. 血糖水平b. 细胞的c. 疫苗d. 产生能量e. 空气污染f. 基因活性g. 再生h. 紊乱i. 随后的，后来的j. 肺癌k. 病症，症状l. 病毒

In ancient China lived an artist 1 paintings were almost lifelike.The artist's reputation had made him proud.One-|||-day the emperor wanted to get his portrait(画像)done so he called all great artists to come and present their 2 -|||-(fine)work,so that he could choose the best.The artist was sure he would 3 (choose),but when he presented his-|||-masterpiece to the emperor's chief minister,the old man laughed.The wise old man told him to travel to the Li River--|||-perhaps he could learn a little from the greatest artist in the world.-|||-Filled with 4 (curious),the artist packed his bags and left. 5 he asked the villagers on the banks of the-|||-river where he could find the legendary(传奇的)artist,they smiled and 6 (point)down the river.The next morning-|||-he hired a boat and set out 7 (find)the well-known painter.As the small boat moved 8 (gentle)along the river-|||-he was left speechless by the mountains being silently reflected in the water.He passed milky white waterfalls an-|||-mountains in many shades of blue.And when he saw the mists rising from the river and the soft clouds 9 (surround)-|||-the mountain tops,he was reduced to tears.The artist was finally humbled(谦卑)by the greatest artist 10 earth,-|||-Mother Nature. [2020·全国卷Ⅲ]-|||-1. __ 2. __ 3. __ 4. __ 5. __-|||-6. __ 7. __ 8. __ 9. __ 10. __

43.（2.0分）Both parties stand up and shake hands to show respect and politeness.If you can't make this，raise your left hand，nodding and smiling.A. 对B. 错

When people say "culture"，we think of art and history.But one very famous symbol in American culture is a cartoon.We all know and love the black mouse with two large round ears-Mickey Mouse.Over 80 years ago，he first appeared in the cartoon Steamboat Willie.When this cartoon came out in New York on November 18，1928，it was the first cartoon with sound and music.The man behind Mickey was Walt Disney.He became very rich and successful.In the 1930s，he made 87 cartoons with Mickey. Some people might ask how this cartoon animal became so popular.One of the main reasons is that Mickey was like a common man，but he always tried to face any danger.In his early films.Mickey was unlucky and had many problems such as losing his house or girlfriend，Minnie.However，he was always ready to try his best.People went to the cinema to see the "little man"win.Most of them wanted to be like Mickey. On November 18，1978.Mickey became the first cartoon character to have a star on the Hollywood Walk of Fame.Today's cartoons are usually not so simple as little Mickey Mouse，but everyone still knows and loves him.Who has a pair of ears more famous than Mickey's？（1）What is the passage mainly about？ ____ A.What people think of cartoons.B.Disney theme parks around the world.C.Some cartoons with Mickey Mouse.D.Mickey，a famous symbol in American culture.（2）Which of the following is the correct order according to the passage？ ____ ①Walt Disney，the man behind Mickey made 87 cartoons with Mickey Mouse.②Steamboat Willie，the first cartoon with sound and music came out in New York.③Mickey became the first cartoon character to have a star on the Hollywood Walk of Fame.④Today's cartoons are not simple as little Mickey Mouse，but everyone still knows and loves him.A.①②④③B.②①③④C.③④①②D.④①③②（3）Why is the character so popular？ ____ A.Because he is always very lucky.B.ecause he has many problems.C.Because he is always ready to try his best.D.Because he is a common man.

10 . Students of all ages might have more on their minds now than ever before — from work, to school to all of the other distractions (分心的事物) pulling at them. So how can they be expected to concentrate, focus and memorize the educational materials they have in front of them each night? 【小题1】 But fortunately, here are some tips on how you can maximize your memory, focus and concentration. 【小题2】 Seems like a no-brainer, but keeping an extra piece of paper nearby when you are in class or at home will allow you to keep a note of what you just learned. By transforming those moments into your own, they will have more meaning to you.Review regularly. Just think about how much information you look at or listen to in a typical day. That’s why you need to give yourself a daily time set aside just for reviewing. 【小题3】 Don’t multitask. If you are on the computer or have your phone nearby, you may try to multitask. In addition to doing your work, you may want to send emails, update your Facebook page or look at other websites. DON’T! 【小题4】 And complete your study in a shorter amount of time with longer lasting results.Chop up for memory. 【小题5】 It’s logical that a smaller piece of knowledge is easier to remember than a large block of information.A．It’s really difficult.B．Write more things down.C．Put your focus on the one thing you are studying.D．Understand the information so that you can remember it in a shorter time.E．Another way to help your memory is to break information into smaller pieces.F．Keep your tasks at hand and memorize some key information whenever you have free time.G．You can take 10 to 15 minutes to look over your notes and any material that you were given.

单选(2分)1 On average, Americans spend just over 32 hours a week listening to music in 2017, up 5.5 hours over last year. How is this possible? Technology. At home, at work and traveling in between, people are consuming more music than ever before, from more devices.2 New technology and the latest gadgets allow listeners to seamlessly engage with music anywhere, anytime. Smartphones, laptops and tablets are among top devices for music engagement at home, and radio still dominates in-car listening, but new technology is becoming more and more relevant.3 Music listeners use an average of 3.4 devices in a typical week to engage with music (teens and Millennials average 3.8). Those who currently pay for streaming services use an average of 4.8, while weekly AM/FM radio streamers use an average of 5.5.4 While smartphones, laptops and television are still the most popular ways we listen to music, newer tech is becoming more mainstream, further personalizing at-home and in-car music experiences. Consumers are now incorporating voice-controlled devices and high-end specialized headphones into their weekly listening habits.5 U.S. music listeners value both quantity and quality, with 30% saying they’re willing to pay more for top-quality music technology. That number climbs to 40% among Millennials.According to this passage, which of the following is the best title for this short passage?A. Devices Used for Music Listening.B. Technology Fuels Music Listening.C. New Tech Becomes the Mainstream for Music Listeners.D. New Tech And Music Listening.