【#第一文档网# 导语】以下是®第一文档网的小编为您整理的《广东省中山市卓雅外国语学校2020_2021学年高二英语下学期第一次段考试题》，欢迎阅读！
广东省中山市卓雅外国语学校2020-2021学年高二英语下学期第一次段考试题 本卷共5页，120，考试用时120分钟。 注意事项： 1．答题前填写好自己姓名、班级、考号等信息 2．请将正确填写或填涂在答题卡上 一、阅读（共两节，50分） 第一节 （共15题；每小题2.5分，37.5分） 阅读下列短文，从每题所给A、B、C、D四个选项中选出最佳选项。 A Caves (洞穴) have a primary appeal — they hold the secrets to our past and are mysterious in and of themselves. ● Mammoth Cave Kentucky, USA The longest cave system in the world lies beneath the Green River Valley in Kentucky and while over 400 miles of passageways have been mapped, it has yet to be fully discovered. The complex limestone labyrinth (石灰岩迷宫) was discovered by humans 4,000 years ago. ● Blue Grotto Capri, Italy Once used as the personal swimming hole for the Roman Emperor Tiberius, this extremely bright sea cave is almost 200 feet long and 82 feet wide. Its unique glow comes from the light entering the small opening to the outside. ● Avshalom Cave Nature Reserve Beit Shemesh, Israel Also known as the Soreq Cave Nature Reserve, Avshalom is considered to be the Rosetta Stone of climate history in the Eastern Mediterranean through the packed stalactites (钟乳石) found in the cave, some of which are over 13 feet long, and are as old as 300,000 years. ● Cave of the Crystals Naica, Mexico This unique cave system in Mexico contains some of the largest natural crystals ever found—the longest of which is 39 feet long and 13 feet thick. However, it is rarely explored due to logistical difficulties: it is extremely hot due to its location above a volcanic vent, and the huge crystals block also block the passage. 1．Where does the longest cave lie in? A．Kentucky, USA． B．Capri, Italy. C．Beit Shemesh, Israel. D．Naica, Mexico. 2．Avshalom is famous as . A．the most beautiful cave. B．the Soreq Cave Nature Reserve. C．the Emperor’s swimming hole. D．over 400 miles of passageways. 3．Which cave includes the largest natural crystals? A．Cave of the Crystals. B．Blue Grotto. C．Mammoth Cave. D．Avshalom Cave Nature Reserve. B Plastic remains one of the most-used materials for making many of the things we use in our everyday lives. Things made of plastic can be very strong and last a long time. They also do well in extreme heat and cold. Plastic is also much lighter than metal and can be easily formed into different shapes. This makes the material perfect for the uses across many different industries But the widespread use of plastics is causing major problems for the environment. Plastic materials are causing serious damage to the world’s oceans. Plastics can take hundreds of years to break down on their own. Very few kinds are highly recyclable. This is because of the way plastics are formed. Even when recycling is possible, the process is costly and can use a lot of energy. But a team of researchers working at the U.S. Department of Energy say they have created a kind of plastic that could lead to products that are 100 percent recyclable. The researchers say the new material is a plastic polymer(聚合物)called polydiketoenamine, or PDK. The team reports that the material can be broken down in parts at the molecular(分子) level. It can then be built up again to form plastics of different shapes, colors and more. The researchers say this process can be repeated over and over again -without the plastic material losing any performance or quality. “Most plastics were never made to be recycled,” lead researcher Peter Christensen said. “But we have discovered a new way to make plastics that takes recycling into consideration from a molecular point of view. Then we would be able to remove plastics from the oceans. It’s going to be a really exciting time.” 4．What's the purpose of the first paragraph? A．To show the advantages of plastic B．To explore the future of plastic C．To prove we can’t live without plastic D．To introduce different plastic products 5．What makes it difficult to break down plastics? A．What they are used for B．How they are formed. C．The deep ocean D．The high cost 6．What can we learn about PDK? A．It can be used repeatedly. B．It can hardly be broken down. C．It is a colorful plastic polymer. D．It is used in some countries now. 7．What is the best title for the text? A．Plastic and industry. B．Pollution and environment. C．Plastic: a most-used material. D．PDK: a new recyclable plastic. C Some scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings. The noise that affects sea creatures comes from a number of human activities. It is caused mainly by industrial underwater explosions, ocean drilling, and ship engines. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves. Decibels (分贝)measured in water are different from those measured on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibel level of one hundred and ninety-five would have the same effect. Some scientists have proposed setting a noise limit of one hundred and twenty decibels in oceans. They have observed that noises at that level can frighten and confuse whales. A team of American and Canadian scientists discovered that louder noises can seriously injure some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales' ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected. Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research. Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they believed. They want to prevent noises from harming creatures in the ocean. 8．According to the passage, which of the following is increasingly dangerous to sea creatures? A．The man-made noises. B．The noises made by themselves. C．The sound of earthquakes. D．The sound of the ice-breaking, 9．Which of the following is discussed in the third paragraph? A．The ocean animal’s reaction to noises. B．Different places with different types of noises. C．The human ears are sensitive to all types of noises. D．The same noise on land measured differently in the ocean. A．They are deaf to noises. B．Noises at a certain level may hurt them. C．They are easily confused by noises. D．Noises will limit their ability to reproduce. 11．According to the passage, what will scientists most probably do in the future? A．They will try their best to decrease noise. B．They will work hard to cut down noise pollution. C．They will study the effect of different noises. D．They will protect animals from harmful noises. D As new technology is introduced, there are many who worry about its influence on our current and future lifestyles－particularly when it comes to jobs. It is a current belief that with the rise of automation and artificial intelligence (AI), many people’s jobs, and therefore their livelihoods, are likely to be lost. Automation in the workplace is nothing new. Machines have been performing dull tasks on our behalf for years, allowing us to escape many repetitive jobs. A recent report from the McKinsey Global Institute states that nearly two thirds of all jobs could have at least 30% of their activities automated by 2030. However, McKinsey also believes that this new technology will also ‘create new occupations that do not exist today, much as technologies in the past have done.’ As the horse gave way to the car, hostlers (马夫) became mechanics and mechanised fields drove up wages and created more long-term roles than it destroyed. “It’s an evolution of work,” says Ian Barkin, a robotic process automation specialist. As low-skilled jobs are taken on by AI, people will need to learn new skills. “This calls on us to focus on up-skilling. Technology can lead to job reductions but it doesn’t have to,” says Barkin. Whether or not robots and AI will leave us all jobless remains to be seen. Current views on the subject are mixed. Increased automation could indeed lead to a loss of some jobs, but 10．As to the influence of noises on whales, which of the following statements is true？at the same time is likely to create many more as new skills are required. Will they balance out? 12．How do many people feel about the influence of AI? A．Quite delighted. B．Quite surprised. C．A sense of fear. D．A sense of pride. 13．What might be McKinsey’s attitude to the rise of automation? A．Doubtful. B．Negative. C．Critical. D．Approving. 14．What does the underlined word “up-skilling” in paragraph 3 mean? A．Taking risks. B．Improving ourselves. C．Adapting to the world. D．Thinking positively. 15．Which can best express the author’s view on automation? A．Every coin has two sides. B．Where there is life, there is hope. C．It’s better to do well than to say well. D．A bad workman quarrels with his tools. 第二节（共5小题；每小题2.5分，12.5分） 阅读下面短文，从短文后选项中选出可以填入空白处最佳选项。选项中有两项为多余选项。 There are a variety of things to do with old books that you no longer want, depending on their condition and content. You might choose to donate old books, sell them to a bookstore, pass them on to friends, or simply throw them out if they are in poor shape. 16．. Others might be able to find a good use for them. When you are deciding what to do with old books, assess their condition first. If it is an old paperback with torn cover and pages, sell it to the recycle bin. If the book is a hardcover and the cover is still in good shape, sell it to a used bookstore. 17．. When selling old books to a bookstore, it is important to be aware of the content of old 本文来源：https://www.dywdw.cn/9231b6aef5ec4afe04a1b0717fd5360cbb1a8d86.html
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2022-05-27
