广东省中山市卓雅外国语学校2020-2021学年高二下学期第一次段考英语试题 WORD版含答案.doc
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1、2020-2021学年第二学期第一次段考高二年级英语学科试卷命题人: 校对人: 本卷共5页,满分120,考试用时120分钟。注意事项:1答题前填写好自己的姓名、班级、考号等信息2请将答案正确填写或填涂在答题卡上一、 阅读(共两节,满分50分)第一节 (共15题;每小题2.5分,满分37.5分)阅读下列短文,从每题所给的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 Cav
2、eKentucky, USAThe 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 GrottoCapri, ItalyOnc
3、e 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 ReserveBeit Shemesh, IsraelAlso known as the Soreq Cave N
4、ature 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 CrystalsNaica, MexicoThis unique cave system in Mexi
5、co contains some of the largest natural crystals ever foundthe 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.1Where d
6、oes the longest cave lie in?AKentucky, USABCapri, Italy.CBeit Shemesh, Israel.DNaica, Mexico.2Avshalom is famous as .Athe most beautiful cave.Bthe Soreq Cave Nature Reserve.Cthe Emperors swimming hole.Dover 400 miles of passageways.3Which cave includes the largest natural crystals?ACave of the Cryst
7、als.BBlue Grotto.CMammoth Cave.DAvshalom 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 l
8、ighter than metal and can be easily formed into different shapes. This makes the material perfect for the uses across many different industriesBut the widespread use of plastics is causing major problems for the environment. Plastic materials are causing serious damage to the worlds oceans.Plastics
9、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
10、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(分子的) level. It can then be built
11、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 di
12、scovered 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. Its going to be a really exciting time.”4Whats the purpose of the first paragraph?ATo show the advantages of plasticBTo explore the fu
13、ture of plasticCTo prove we cant live without plasticDTo introduce different plastic products5What makes it difficult to break down plastics?AWhat they are used forBHow they are formed.CThe deep oceanDThe high cost6What can we learn about PDK?AIt can be used repeatedly.BIt can hardly be broken down.
14、CIt is a colorful plastic polymer.DIt is used in some countries now.7What is the best title for the text?APlastic and industry.BPollution and environment.CPlastic: a most-used material.DPDK: a new recyclable plastic.C Some scientists say that animals in the ocean are increasingly threatened by noise
15、 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, underwa
16、ter 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 sci
17、entists 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 t
18、hat 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
19、 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
20、 a greater danger than they believed. They want to prevent noises from harming creatures in the ocean.8According to the passage, which of the following is increasingly dangerous to sea creatures?AThe man-made noises.BThe noises made by themselves.CThe sound of earthquakes.DThe sound of the ice-break
21、ing,9Which of the following is discussed in the third paragraph?AThe ocean animals reaction to noises.BDifferent places with different types of noises.CThe human ears are sensitive to all types of noises.DThe same noise on land measured differently in the ocean.10As to the influence of noises on wha
22、les, which of the following statements is true?AThey are deaf to noises.BNoises at a certain level may hurt them.CThey are easily confused by noises.DNoises will limit their ability to reproduce.11According to the passage, what will scientists most probably do in the future?AThey will try their best
23、 to decrease noise.BThey will work hard to cut down noise pollution.CThey will study the effect of different noises.DThey 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 lifestylesparticularly when it
24、comes to jobs. It is a current belief that with the rise of automation and artificial intelligence (AI), many peoples 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
25、 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 tod
26、ay, 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.“Its an evolution of work,” says Ian Barkin, a robotic process automation specialist. As low-skille
27、d 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 doesnt 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. Inc
28、reased automation could indeed lead to a loss of some jobs, but at the same time is likely to create many more as new skills are required. Will they balance out?12How do many people feel about the influence of AI?AQuite delighted.BQuite surprised.CA sense of fear.DA sense of pride.13What might be Mc
29、Kinseys attitude to the rise of automation?ADoubtful.BNegative.CCritical.DApproving.14What does the underlined word “up-skilling” in paragraph 3 mean?ATaking risks.BImproving ourselves.CAdapting to the world.DThinking positively.15Which can best express the authors view on automation?AEvery coin has
30、 two sides.BWhere there is life, there is hope.CIts better to do well than to say well.DA bad workman quarrels with his tools.第二节(共5小题;每小题2.5分,满分12.5分) 阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。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
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