Part II Reading ComprehensionDirections: There are 4 passages in this part. Each of the passages is followed by 5 questions or unfin-ished statements. For each of them there are 4 choices marked A, B, C and D. Choose the best one andmark your answer on the ANSWER SHEET with a single line through the centre.
阅读材料，回答下面试题。
"High tech" and "state of the art" are two expressions that describe the modem technology. High tech is just a shorter way of saying high technology. And high technology describes any invention, system of device that uses the newest ideas or discoveries of science and engineering. What is high tech? A computer is high tech. So is a communications satellite. A modem manufacturing (生产) system is surely high tech. High tech became a popular expression in the United States during the early 1955’s. Because of improvements in technology, people could buy many new kinds of products in American stores, such as home computers, microwave ovens, etc.
"State of the art" is something that is as modem as possible. It is a product that is based on the very latest methods and technology. Something that is "state of the art" is the newest possible design or product of a business or industry. A state of the art television set, for example, uses the most modem electronic design and parts. It is the best that one can buy.
　　"State of the art" is not a new expression. Engineers have used it for years, to describe the best and most modem way of doing something. Millions of Americans began to use the expression in the late 1970’s. The reason was the computer revolution. Every computer company claimed that its computers were "state of the art".
　　Computer technology changed so fast that a state of the art computer today might be old tomorrow. The expression "state of the art" became as common and popular as computers themselves. Now all kinds of products are said to be "state of the art".
　　第11题 What is the purpose of the passage?________
　　A.To tell how "high tech" and "state of the art" have developed.
　　B.To give examples of "high tech".
　　C.To tell what "high tech" and "state of the art " are.
　　D.To describe very modem technology.
　　答案：C
　　第12题 What can we infer from the passage?________
　　A.American stores could provide new kinds of products to people.
　　B.High tech describes a technology that is not traditional.
　　C."State of the art" is not as popular as "high tech".
　　D.A modem plough pulled by oxen is "state of the art".
　　答案：A
　　第13题 All the following examples are high tech except ________
　　A.a microwave oven　　B.a home computer　　C.a hand pump　　D.a satellite
　　答案：C
　　第14题 Which of the following statements is not true? ________
　　A.Since the computer revolution, the expression "state of the art" has become popular.
　　B."State of the art" means something that is the best one can buy.
　　C.With the rapid development of computer, "state of the art" computer may easily become out of date.
　　D.All kinds of products are "state of the art" nowadays.
　　答案：D
　　第15题 The best title for the passage is________
　　A.Computer Technology　　B.High Tech and State of the Art
　　C.Most Advanced Technology　　D.Two New Expressions
　　答案：B
　　阅读材料，回答下面试题。
　　The top of the world is a wonderland. In winter, the temperature often fails to -30~F and the sun never rises. The ocean is surrounded by frozen ground. There are few people or trees, but to polar bears, the Arctic(北极) is home.
　　Polar bears have thick fur, big paws and other features that make them well prepared for life in their tough environment. In fact, they need the Arctic sea ice for survival. But climate change is causing larger and larger areas of summer sea ice to melt(融化). Experts say that if warming pat-terns continue, the Arctic could be free of summer sea ice by 2050. That may cause two-thirds of the word' s 20,000 polar bears to be gone by then too.
　　Polar bears can' t survive for long on land. Seals are their main source of food. The only place where polar bears can hunt seals is on the ice. Although these bears are strong swimmers, they are no match for lighming swift seals in the water. A polar bear has brilliantly clever strategies to overcome this disadvantage. In winter the bear waits motionless beside a seal' s breathing hole, which is a narrow tunnel through the ice. Often many hours pass before the seal comes up for air and the bear kills it with a powerful blow of its paw. In summer, the polar bears that live on land eat very little and wait for the sea ice to return.
　　With the sea ice forming later in the year and melting earlier, polar bears do not have enough opportunity to hunt and eat. Less sea ice makes it harder for the bears to catch the seals. The bears must swim longer distances between ice packs( 大片浮冰), and they can' t always make it.. The ice is also getting thinner. These conditions can cause polar-bear cubs to become separated :from their mothers, who provide them with food.
　　Steven Amstrup is the chief scientist of Polar Bear International. The group aims to save the bears and their home. "The more people who see polar bears and understand their difficult situations, the better the chance we' 11 alter our warming path in time to save them," he says.
　　第16题 Which is the best title for the passage?
　　A.Climate Change in the Arctic　　B.How to Protect the Environment
　　C.The Arctic Is Home to Polar Bears　　D.Polar Bears in Danger
　　答案：D
　　第17题 Where do polar bears usually hunt seals?
　　A.On land.　　B.In open water.　　C.In openings in the sea ice.　　D.At the bottom of the sea.
　　答案：C
　　第18题 The word" cubs" in the fourth paragraph is closest in meaning to_________
　　A.adults　　B.babies　　C.Hunters　　D.enemies
　　答案：B
　　第19题 According to the passage, which of the following statements is TRUE?
　　A.Starving polar bears are increasingly coming into villages, where they may be killed eitherfor food or safety.
　　B.Polar bears can spend their entire lives on land if the sea ice melts completely.
　　C.Two-thirds of the world' s polar bears may disappear by 2050 as global warming continues.
　　D.The growing distance between ice packs is not a problem for polar bears, because they areexcellent swimmers.
　　答案：C
　　第20题 What' s the mission of Polar Bears International?
　　A.Saving energy.　　B.Conducting scientific research.
　　C.Seeking international cooperation.　　D.Saving polar bears and their home.
　　答案：D

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