摘要： People in industrial countries take in as they actually need every day. A. twice as much protein B. protein as much twice C. twice protein as much D. protein as twice as much Section B Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need A. agree B. suffer C. system D. notice AB. through AC. dangerous AD. space BC. limited BD. absorbs CD. let out For years scientist have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more 41 than the air outside. It may be one hundred times worse. Indoor air pollution can cause a person to feel tired, to 42 eye-pain, headache and other problems. Some pollutants can cause breathing disorders, diseases of blood and even cancer. Most scientists 43 that every modern house has some kind of indoor pollution. People began to 44 the problem in the early 1970s, when it was that builders began making houses and offices which did not waste energy. To do this they built buildings that 45 the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to 46 harmful gases. As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control 47 for building green plants. Scientist do not really know how plants control air pollution. They believe that a plant’s leaves take in the pollutants. In exchange the plant produces oxygen 48 its leaves and through its tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space. Studies of different plants show that each 49 different chemicals. So the most effective way to clean the air is to use different kinds of plants. Having green plants inside your house can make it a prettier and healthier place. III. Reading Comprehension:31% Section A Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that fits the context. Good news! Tiny robots designed by University of Nebraska researchers may 50 doctors on Earth to help perform surgery on patients in space. The tiny, wheeled robots, which are about 3 inches tall and as wide a lipstick case, can be slipped into small incisions and computer-controlled by surgeons in different 51 . Some robots are equipped with 52 and lights and can send images back to surgeons and others have surgical tools attached that can be controlled 53 . “ We think this is going to 54 open surgery. Dr. Dmitry Oleynikov said at a news conference. Oleynikov is a 55 in computer-assisted surgery at the University of Nebraska Medical Center in Omaha. Officials hope that NASA will teach 56 to use the robots soon enough 57 surgeries could one day be performed in space. The camera-carrying robots can provide 58 of affected areas and the ones with surgical tools will be able to operate inside the body in ways surgeons’ hands can’t. The views from the camera-carrying robots are 59 than the naked eye, because they 60 back color images that are magnified. Because several robots can be inserted through one incision, they could reduce the amount and 61 of cuts needed for surgery, which would decrease recovery time. This is particularly 62 to those patients who have been weakened by long illness. Eventually, Oleynikov said, “ The tiny robots may enable surgeons to work without ever 63 their hands in patients’ bodies. That is the 64 . It is getting easier and easier. We can do even more with these devices.

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