北师大版高中英语必修5单元突破同步达标活页试卷 Unit 15 Period 6

第十五单元(Unit 15)课时精练卷Learning第六课时(Period 6) 精练卷时间：45分钟满分：50分得分_一、单词拼写（10分）根据句意和所给的汉语或首字母提示写出句中的单词。1. She considers teaching a _ (值得的) career.2. She introduced me to some of her _ (同学) students.3. Some nursing experience is a necessary _ (资质) for this job.4. The _ (首要的) problem the whole world are facing is how to control H1N1 Flu.5. Older people tend to be quite _ (保守的) and a bit suspicious of any supposed advances.6. Sign your name in the b_ space at the bottom of the form.7. He saw himself r_ in the water/mirror/shop window.8. He took a step b_ to allow her to pass.9. The sweat was p_ down her face by the end of the race.10. We are working on the a_ that the conference will take place as planned.二、虚拟语气（30分）1. “I still havent thanked Aunt Lucy for her present.” “Its time you _.” A. do B. did C. had D. would2. If I hadnt been lucky enough to meet you. I really _ what I would have done. A. dont know B. hadnt known C. wasnt knowing D. wouldnt know3. “Ive told everyone about it.” “Oh, Id rather you _.” A. dont B. hadnt C. couldnt D. wouldnt4. It has been raining for a day, but even though it hadnt rained, we _ there by tomorrow. A. cant get B. wont get C. hadnt got D. wouldnt get5. “Do you know his address？” “No, I also wish I _ where he _.” A. knew; live B. knew; lives C. know; lives D. know; lived6. “Isnt it about time you _ to do morning exercises？” “Yes, it is. Would you like to join us？”王 A. beginB. have begun C. began D. had begun7. It is hard for me to imagine what I would be doing today if I _ in love, at the age of seven, with the Melinda Cox Library in my hometown. A. wouldnt have fallen B. had not fallen C. should fall D. were to fall8. He hesitated for a moment before kicking the ball, otherwise he _ a goal. A. had scored B. scored C. would score D. would have scored9. If only he _ quietly as the doctor instructed, he would not suffer so much now. A. lies B. lay C. had lain D. should lie10. Without the air to hold some of the suns heat, the earth at night _ for us to live. A. would be freezing cold B. will be freezing coldly C. would be frozen cold D. can freeze coldly 11. Yesterday, Jane walked away from the discussion. Otherwise, she _ something she would regret later. A. had said B. said C. might say D. might have said12. You didnt let me drive. If we _ in turn, you _ so tired. A. drove; didnt get B. drove; wouldnt get C. were driving; wouldnt get D. had driven; wouldnt have got13. When a pencil is partly in a glass of water, it looks as if it _. A. breaks B. has broken C. were broken D. had been broken14. But for the help you gave me, I _ the examinations. A. would have passed B. would passC. wouldnt have passed D. wouldnt pass15. If I had studied a little harder, I for the job. A. wouldnt have been qualified B. would qualifiedC. would been qualified D. would have been qualified三、任务型阅读(10分) Several recent studies have linked human activities to reduced numbers of sharks in the worlds oceans. Scientists say a sharp decrease in the number of large sharks in the Atlantic Ocean has helped some kinds of fish. They say such fish are now threatening other sea animals. Canadian and American scientists studied the effects of people fishing for sharks in the Northwest Atlantic over the past 35 years. Results of their studies were published in Science magazine. Scientists say one effect of shark fishing has been an estimated ninety-nine percent decrease in some shark populations. They say the loss of larger sharks has caused a population explosion among fish like skates and rays. Such fish and smaller sharks have increased in large number along the east coast of the United States. Sharks usually eat skates and rays. Scientists say these fish feed on shellfish, which are disappearing from the ocean. They say other sea animals are also being threatened by the areas changing environment. Demand for shark fins (鳍) has been rising in Asia. Shark fins are used for medicine and also for food. The popularity of shark fin soup in China has made the demand for these animals greater. For one of the studies, scientists from Canada examined information from private fishing companies and other research projects. They noted a sharp decrease in eleven kinds of great sharks since the 1980s. One of the scientists was Julia Baum of Dalhousie University. She says the World Conservation Union earlier this year listed great hammerhead and scalloped hammerhead sharks as being in danger of disappearing. The group also reported the dusky and sandbar sharks as being threatened. Other scientists agree that the decrease of the shark population may be linked to the increase of smaller fish. But they say it is not the only cause. They also debate how much the decrease has affected other fish species. Other reasons for these changes include pollution and the loss of native waters for some animals. The argumentFishing for sharks (1) _ other sea animals. (2) _ of the sea environment caused by human activities Human activities are (3) _ to the decrease of sharks, which partly results from the (4) _ for shark fins. With the decrease of large sharks, the population of (5) _ sharks is increasing. The increasing number of skates and rays live on the disappearing (6) _ in the sea. (7) _ _ from private fishing companies and some research projects showed that eleven kinds of great sharks are decreasing. According to Julia Baum, there are (8) _ kinds of sharks in danger. Conclusion(9) _ for sharks, pollution as well as the loss of (10) _ waters may be part of the reasons for these changes of the sea environment. 答案Period 6一