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1、Unit 4 Earthquakes 单元测试卷（考试时间：90分钟 试卷满分：120分）第一部分 阅读理解(共两节，满分40分)第一节 (共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。APacific Science Center GuideVisit Pacific Science Centers StoreDont forget to stop by Pacific Science Centers Store while you are here to pick up a wonderful science activity or
2、souvenir to remember your visit. The store is located(位于) upstairs in Building 3 right next to the Laser Dome.Hungry? Our exhibits will feed your mind, but what about your body? Our caf offers a complete menu of lunch and snack options, in addition to seasonal specials. The caf is located upstairs i
3、n Building 1 and is open daily until one hour Pacific Science Center closes.Rental InformationLockers are available to store any belongs during your visit. The lockers are located in Building 1 near the Information Desk and in Building 3. Pushchairs and wheelchairs are available to rent at the Infor
4、mation Desk and Denny Way entrance. ID required.Support Pacific Science Center Since 1962, Pacific Science Center has been inspiring a passion(热情) for discovery and lifelong learning in science, math and technology. Today, Pacific Science Center serves more than 1.3 million people a year and brings
5、inquiry-based science education to classrooms and community events all over Washington State. Its an amazing accomplishment and one we cannot achieve without generous support from individuals, corporations, and other social organizations. Visit pacificsciencecenter.org to find various ways you can s
6、upport Pacific Science Center.1. Where can you buy a souvenir at Pacific Science Center?A. In Building 1.B. In Building 3.C. At the Laser Dome.D. At the Denny Way entrance.2. What does Pacific Science Center do for schools?A. Train science teachers.B. Distribute science books.C. Inspire scientific r
7、esearch.D. Take science to the classroom.3. What is the purpose of the last part of the text?A. To encourage donations.B. To advertise coming events.C. To introduce special exhibits.D. To tell about the Centers history.BEverybody hates rats. But in the earthquake capitals of the world Japan, Los Ang
8、eles, Turkey rats will soon be mans new best friends.What happens after an earthquake? We send in rescue dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they cant get into small spaces. So now a new research project is using a
9、 smaller animal to save lives: the rat.How does it work? First, the rat is trained to smell people. When this happens, the rats brain gives a signal (信号). This is sent to a small radio on its back, and then the rescuers follow the radio signals. When the rats brain activity jumps, the rescuers know
10、that someone is alive. The rat has smelled that person.Although there are already robots which can do this job, rats are better. Christian Linter at Cornell University New York says, Robots noses dont work well when there are other smells around. Rats are good at that. Rats can also see in the dark.
11、 They are cheaper and quicker to train than dogs, and unlike robots, they dont need electricity!The rat project is not finished, but Julie Ryan of International Rescue Corps in Scotland says, It would be wonderful. A rat could get into spaces we couldnt get to and a rat would get out if it wasnt saf
12、e. Perhaps for the first time in history, people will be happy to see a rat in a building(but only after an earthquake, of course). 4. In the world earthquake capitals, rats will become mans best friends because they can _.A. take the place of mans rescue jobsB. find the position of people alive who
13、 are trapped in buildingsC. serve as food for people alive who are trapped in buildingsD. get into small spaces5. From the third paragraph we know the rescuers can judge that a person is alive by _.A. the noise made by the ratB. the rats unusual behaviorC. the signal sent by the radio on the rats ba
14、ckD. the smell given off by the person6. In doing rescue jobs, _.A. rats smell better than dogsB. dogs dont need to be trained to smell peopleC. robots sense of smell can be affected by other smells aroundD. rats can see in the dark and smaller than robots7. According to the passage, the rat project
15、 means to _.A. use the dog to save lives after an earthquakeB. use the rat to save lives after an earthquakeC. use the rat to feel the coming earthquakeD. use the robot to save lives after an earthquakeCMost people think about donating blood. However, very few actually do it. Even the most consistent ones donate an average of just three to four times during their lifetime. Now the officials in Sweden are trying to change the trend with the help of modern-day technology.The encouragement to donate again begins shortly after the donor leaves the clinic when
