课时提能练41-42 课时提能练(四十一) 选修7 Unit 21 Human Biology(A) 课时作业A：基础层面 Ⅰ.单句语法填空 1．Local businesses are closing at a/the rate of three a year. 2．I will not idle (虚度) away my time and be sorry in vain when my youthful head becomes white. 3．I would rather surf the Internet than go to the cinema. 4．The meeting which is reported to_be_held (hold) this month has been put off till the end of next month. 5．It's cruel of him to kill his mother. Ⅱ.单句改错 1．It is nice for you to give us so much help.for→of 2．Strangely，Mr Green，opposing to the new policy，made no remark in the discussion.opposing→opposed 3．I always have faith he will come to our party in person.faith后加that 4．My deskmate，rather than you，are responsible for the work.are→is 5．He made fortune in his business trade last year.made后加a Ⅲ.选词成篇 A straight away，cater to，get down to，at random，focus on，in despair，bring up，be responsible for，stop it in its tracks Some schools 1.focus_on the number of the students admitted to key universities.In order to 2.cater_to the request of society，they 3.get_down_to adding lessons 4.at_random.As a result，a lot of students think they're 5.in_despair and tired of being 6.brought_up at school.Some parents think that the local government should 7.be_responsible_for it and should 8.stop_it_in_its_tracks 9.straight_away. B wipe out，rob...of...，at any rate，in vain，prohibit...from...，at all costs，submit to Three robbers were believed to have 10.robbed a bank of a large fortune yesterday. The government ordered that the police should find the robbers 11.at_any_rate.The police immediately blocked the main roads and 12.prohibited the suspects from escaping but 13.in_vain.The authority said that such crimes were hard to tolerate and must be 14.wiped_out 15.at_all_costs.At present，the police are seeking the information about the case and urge the criminal to 16.submit_to the police. Ⅳ.完成句子 1．The village shouldn't_have_been_wiped_out (本不应该被彻底冲走的)if the trees around it had been protected well enough. 2．Most of us are doubtful_whether (怀疑是否)the boy really had_his_purse_ robbed_of (被抢了钱包)on his way home yesterday. 3．We_must_take_measures (我们必须采取措施)to get the prices to decline by 10 percent at any rate. 4．Generally speaking，it is wrong to achieve your aim at_the_cost_of_your _health(以你的健康为代价)． 5．Having_been_here_for_a_year(待在这儿一年了)，I fit in quite well now despite some difficulties. 课时作业B：能力层面 Ⅰ.阅读理解 A (2019·绵阳市第一次诊断)We are what we eat.That is an old expression，but one worth knowing.A recent look at diets around the world shows that people who eat healthy food—and not too much of it—live longer.But which areas of the world have the best diets? Researchers found that foods in some of the healthiest diets— Mediterranean diet，New Nordic diet，Japanese diet and French diet—may be very different，but they are all heavy on local and sea ... ...
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