大学英语四.第二次作业

1．— Excuse me, can you tell me where the nearest bank is, please?—______ Oh yes! It’s past the office, next to a big market.所选答案：A. Mm, let me think.2．— Can I help you, sir?— Yes, I bought this radio here yesterday, but it ______ .所选答案：D.doesn’t work所选答案：C.call me Charles所选答案：C. speaking5．— Tom, would you like to come to our dinner party tonight?— ___________所选答案：B.Sure. When to start?6．— Sorry, I can't go camping with you. I have to prepare well enough for the entrance-exam.— ________! We can camp together next time.所选答案：C.Good luck所选答案： A. Well, it's OK.所选答案： B.No, go ahead.所选答案：D. Would you like to try it on?所选答案： D.Sorry I can't. I have to go to a meeting rightnow.第二部分:阅读理解（每小题2分，满分40分）此部分共有4篇短文，在第一篇短文后有5个正误判断题，从每题后的两个选项中选出正确答案；在第二篇短文后有5个问题。

请从每个问题后的A.B.C.D四个选项中选出正确选项。

Passage 1If you travel by air across the center of Africa or South America, you fly over forests for thousands of kilometers. These great forests are the oceans of trees. There are thousands and thousands of different kinds of plants and animals.However, the world's forests are getting smaller all the time. We are cutting down the trees because we need wood, and we need more farmland. Some people say that there will not be any forests like these in 20 or 30 years. What will happen if they disappear?If we cut down our forests, a lot of plants and animals will disappearfrom the world. In a lot of places the new farmland will soon look like the old deserts. Crops will not grow there. It will not rain very often, and the weather will get very hot. Perhaps the climate of the world will change. This will be dangerous for everyone in the world. That is why we must take care of our forests.1、The passage mainly tells us about the importance of taking care of plants.所选答案： A. T2、Forests are homes for different kinds of animals.所选答案： A. T3、The need for more wood and more land help to protect our forests.所选答案： B. F4、We'll have more and greater forestsn in 20 or 30 years in some people's view.所选答案： B. F5、The writer thinks it necessary to protect the forests.所选答案： A. TPassage 2 A Digital Life – Digital MemoryHuman memory can be very difficult to understand. We find its limitations every day, when we forget a friend’s telephone number, the name of a business contact or the title of a favorite book. People have developed a variety of strategies for combating forgetfulness-messages written on Post-it notes, for example, or electronic address books carried in handheld devices-but important information continues to slip throughthe cracks. Recently, however, new systems may allow people to record everything they see and hear-and even things they cannot sense-and to store all these data in a personal digital archive that is both searchable and secure.Digital memories can do more than simply assist the recollection of past events, conversations and projects. Portable sensors can take readings of things that are not even perceived by humans, such as oxygen levels in the blood or the amount of carbon dioxide in the air. Computers can then scan these data to identify patterns: for instance, they might determine which environmental conditions worsen a child’s asthma. Sensors can also log the three billion or so heartbeats in a person’s lifetime, along with other physiological indicators, and warn of a possible heart attack. This information would allow doctors to spot irregularities early, providing warnings before an illness becomes serious. Your physician would have access to a detailed, ongoing health record, and you would no longer have to rack your brain to answer questions suc h as ―When did you first feel this way?‖A Microsoft research project, called My Life Bits, has provided some of the tools needed to compile a lifelong digital archive. They have found that digital memories allow one to vividly relive an event with sounds and images. Every word one has ever read, whether in an e-mail, an electronic document or on a Web site, can be found again with just a few keystrokes. Computers can analyze digital memories to help with time management, pointing out when you are not spending enough time on your highest priorities. Perhaps most important, digital memories can enable all people to tell their life stories to their later generation in a systematic and detailed fashion that until now has been reserved solely for the rich and famous.6．What does the author mean by saying ―Human memory can be very difficult to understand. (Papa. 1)‖?所选答案： A.Humans often fail to recall some familiar and importantinformation.7．Which of the following is closest in meaning to ―slip through the cracks‖ (Papa.1)?所选答案： B.To be forgotten.8．Digital memories can perform all the following tasks except __________.所选答案： C.telling people how to cure heart disease9．My Life Bits can be used to ____________.所选答案： D.let a boy know more about his father’s adventures in youth10．What is the passage mainly about?所选答案： A.How digital memories can change our way of life.Passage 3If you travel by air across the center of Africa or South America, you fly over forests for thousands of kilometers. These great forests are the oceans of trees. There are thousands and thousands of different kinds of plants and animals.However, the world's forests are getting smaller all the time. We are cutting down the trees because we need wood, and we need more farmland. Some people say that there will not be any forests like these in 20 or 30 years. What will happen if they disappear?If we cut down our forests, a lot of plants and animals will disappear from the world. In a lot of places the new farmland will soon look like the old deserts. Crops will not grow there. It will not rain very often, and the weather will get very hot. Perhaps the climate of the world will change. This will be dangerous for everyone in the world. That is why we must take care of our forests.11、The passage mainly tells us about the importance of taking care of plants.所选答案： A. T12、Forests are homes for different kinds of animals.所选答案： A. T13、The need for more wood and more land help to protect our forests.所选答案： B. F14、We'll have more and greater forestsn in 20 or 30 years in some people'sview.所选答案： B. F15、The writer thinks it necessary to protect the forests.所选答案： A. T问题26得2 分，满分2 分Passage 4Paper is one of the most important products ever invented by man.Wide spread use of written language would not have been possible without some cheap and practical material to write on. The invention of papermeant that more people could be educated because more books could beprinted and distributed. Together with the printing press, paper provided an extremely important way to communicate knowledge.How much paper do you use every year? Probably you cannot answer that question quickly. In 1900 the world's use of paper was about onekilogram for each person a year. Now some countries use as much as 50kilograms of paper for each person a year. Countries like the United States, England and Sweden use more paper than other countries.Paper, like many other things that we use today, was first made in China. In Egypt and the West, paper was not very commonly used beforethe year 1400. The Egyptians wrote on a kind of material made of a waterplant. Europeans used parchment for many hundreds of years. Parchmentwas very strong; it was made from the skin of certain young animals. Wehave learnt of the most important facts of European history from recordsthat were kept on parchment. (208 words)16. What's the meaning for the word "parchment"?所选答案： B.A kind of paper made from the skin of certain younganimals.所选答案： A.More jobs could be provided than before.所选答案：A. Around 1400.问题 29得 2 分，满分 2 分19. Which of the following countries uses more paper for each person a year?所选答案：B.Sweden.所选答案：C.The invention of paper is of great significance to man.第三部分:词汇与结构（每小题2分，满分20分） 此部分共有5个未完成的句子，针对每个句子中未完成的部分有4个选项，请从A.B.C.D 四个选项中选出正确选项。