2020-2021学年人教版英语选修7课后作业：UNIT 3LEARNING ABOUT LANGUAGE .doc

1、.阅读理解Dozens of dolphins swam out of the polluted waters of Haifa harbour on Tuesday.This was the first time that dolphins had visited this crowded Mediterranean port, and researchers were surprised and delighted by the unexpected event.Between 40 and 50 of the dolphins appeared in the busy port on T

2、uesday morning，obviously drawn by the fishrich waters of Haifa Bay.However, the bay is also full of harmful chemicals.Aviad Sheinin, professor of Haifa Universitys Maritime Studies Department，said he didnt think the dolphins were harmed by the pollution，but that he hoped they would swim back to sea

3、soon.“It seems that they are quite relaxed.They dont seem to be stressed，”he said.Haifa Bay is lined by chemical companies that have been pouring poisonous waste into the water for decades.While pollution levels have dropped in recent years, the water is still considered a health hazard (隐患) “There

4、are lots of fish in Haifa port.Unfortunately we couldnt tell the dolphins that the fish are not healthy，and I dont know what the result will be，” he told Israel Army Radio.Hundreds of Haifa residents gathered around Haifa Bay to see the interesting sight，and researchers said this provided a rare cha

5、nce to film and study the roughtoothed dolphins.In addition to the dozens of dolphins which swam into the port on Tuesday，a similar number stayed outside the breakwater (防波堤)Later Tuesday the dolphins left the port but remained near the entrance and Israels coast guard was patrolling (巡逻) the area t

6、o try to make sure the dolphins didnt reenter the poisonous waters.Relatively little is known about roughtoothed dolphins, which are usually found in deep and warm tropical waters.本文主要讲一群海豚出乎意料地游到了被污染的水域，最后又游走的事情。1Haifa Bay is full of harmful chemicals which are caused by .Aunhealthy fishBshipsCchem

7、ical companies Dresidents living nearby答案：C解析：根据第四段第一句可知这些有害的化学物质是化工厂排放到河中去的。2Aviad Sheinins words suggest .Ahe is curious about the dolphinsBthe dolphins might affect the existence of fish in Haifa portChe will do research on the dolphinsDhe is uncertain about what will happen to the dolphins答案：D解析

8、：根据第三段第二句“.he didnt think.but that he hoped they.”及第五段中“and I dont know what the result will be”可推知他不确定这些海豚最终会怎样。3When learning the dolphins entered Haifa port，hundreds of Haifa residents .Awere curiousBfelt upsetCwent to drive them awayDwere shocked答案：A解析：根据倒数第二段第一句“Hundreds of Haifa residents gath

9、ered around Haifa Bay to see.”可知他们很好奇，都跑去观看。4This passage mainly tells us that .Adolphins are well protected in IsraelBHaifa Bay is full of harmful chemicalsCdolphins made a surprise visit to the polluted harbourDpeople love dolphins答案：C解析：本文第一段为事件的总述，结合下文可知本文主要讲一群海豚出乎意料地游到了被污染的水域，最后又游了出来。.语法填空As ev

10、eryone knows, France is famous for its delicious food.But besides this, the French spend 1 (much) time sleeping and eating than anyone else among the worlds wealthy nations，according to a study 2 (publish)recently.The average French person 3 (sleep)almost nine hours every night, more than an hour lo

11、nger than the average Japanese and South Korean，who sleep the 4 (little) in a survey of 18 members of the Organization for Economic Cooperation and Development.Despite their habit of siesta(午睡), Spaniards rank only third in the poll after 5 (America)，who sleep more than 8.5 hours.And although more a

12、nd more French people grab a bite at fastfood chains these days, they still spend more than two hours a day 6 (eat)That means their meals are twice as long as 7 of the average Mexican，who dedicates just over an hour a day to food，the OECDs “Society at a glance” report on work, health and leisure in

13、Asia, Europe and North and South America found.The survey showed that the difference 8 work and leisure time within certain countries is striking.“Italian men have nearly 80 minutes a day of leisure more than women.Much of the 9 (addition) work of Italian women is 10 (apparent) spent cleaning the house，”the OECD said in a statement.1more2.published3.sleeps4.least5.Americans6.eating7those8.between9.additional10.apparently