2021届高考英语大一轮复习Unit21HumanBiology课时作业21a北师大版选修7 练习

写作词汇——————————————明其义

1．unite vt.联合；团结；统一

2．seek vt.寻找

3．cater vi.满足；迎合

4．scan n．扫描

5．postpone vt.推迟，延期

6．abuse vt.滥用

7．pause n．停顿；暂停

8．foresee vt.预见

9．thorough adj.彻底的；细致的

10．rob vt.使丧失；抢劫

11．decline vi.下降

12．submit vt.提交

13．vote vi.表决

14．circumstance n．情形；情况

15．prohibit vt.禁止

16．faith n．信心

阅读词汇——————————————悉其用

1．contradict vt. 与(其他事物)相矛盾

2．circulate vi. 循环

3．routine n. 常规；惯例

4．temporary adj. 临时的；短暂的

5．fundamental adj. 根本的；基础的

6．interval n. 间隔；间歇

7．underline vt. 表明重要性；强调

8．deadline n. 截止日期，最后日期

9．compulsory adj. 强制性的，义务的

10．digest vt. 消化

11．swap vi. 交换

拓展词汇———————————通其变

1．adaptation n．变化；变种；适应；改编，改编本→adapt vi.适应 vt.使适应；改编

2．doubtful adj.怀疑的，不肯定的→doubt v. & n. 怀疑

3．annual adj.每年的，年度的→annually adv.每年地，年度地

4．oppose vt.反对→opposition n．反方；对立面→opposite adj.相反的；对面的→opposed adj.反对的

5．treat vt.款待；对待；治疗 n．请客；款待→treatment n．对待；治疗

6．tolerate vt.容忍→tolerance n．容忍；忍耐力

7．minimum n．最低；最小→minimize vt.使最小化→maximum n．最大值；最大→maximize vt.使最大化

8．equip vt.使有准备→equipment n．设备

9．fortune n．大笔钱财；巨款；运气；命运→fortunate adj.幸运的→fortunately adv.幸运地→unfortunate adj.不幸的→unfortunately adv.不幸地

10．concern n．担心；担忧→concerned adj.担心的；担忧的

语境活用——————————(用所给单词的适当形式填空)

1．She was very fortunate to come into a large fortune, but unfortunately she was confirmed to suffer from a deadly disease.(fortune)

2．The manager thinks she is faithful to him and always helps him faithfully.(faith)

3．The number of people who run the red light has been on the decline since the new traffic regulations (regulate) came into effect.

4．Owing to the bad weather, we decided to postpone leaving (leave)．

5．As we all know, an annual meeting is held annually. (annual)

6．Several robbers robbed the bank of an enormous sum of money, making the largest robbery of this city in the last decade. But they were soon caught by the police.(rob)

7．This is a modern, bright and well equipped hospital, and its equipment is of the first level.(equip)

8．Tomorrow is the last date for submission (submit) of entries for the competition.

9．Hard work keeps away poverty. Toleration (tolerate) keeps away violence.

10．We prohibit (prohibition) air guns and the weapons that might wound someone.

短语速记——————————————

1．in_vain 徒然，白费力气

2．at_random 随便地；随意地

3．at_all_costs 不管多大代价

4．straight_away 立刻；马上

5．wipe_out 彻底毁灭

6．stop_sth._in_its_tracks 终止；消灭

7．at_any_rate 无论如何；至少

8．swap_with 与……交换

9．due_to 因为；由于

10．come_across 偶然遇见；发现

11.beyond one's natural limits 超出某人的正常限度

12．clear up 清理；放晴；澄清

13．rob sb. of sth.抢劫某人某物

14．vote for 投票赞成

15．under no circumstances 决不；无论如何都不

16．put off 推迟

17．get down to 开始认真做

18．bring up 养育；抚养；呕吐

19．get through 通过(考试等)；完成

20．miss out 遗漏；遗忘；错过机会

21．focus on 聚集；集中；对准

语境活用—————————————(选用上面的短语填空)

1．The market researchers interviewed people at_random in the street.

2．I've made up my mind to attain my purpose at_all_costs.

3．I'll just read through the form again to make sure I haven't missed anything out.

4．The noise made it hard for me to focus_on work.

5．It's not a easy task for you to bring_up a small child on your own.

6．Had the boy worked harder, he would have got_through the exams.

7．It's time I got/should_get_down_to thinking about that essay.

8．Last week, I was robbed_of my wallet in front of a hotel on my way home.

9．I tried to make his peace with her, but in_vain.

10．It is raining now, but I think it will clear_up soon.

教材还原——————————————

1．Many contemporary amateur athletes would have broken world records if_they_had_taken_part_in

 the first Olympic Games.

许多当代的业余运动员如果参加了首届奥运会，他们会打破很多项世界纪录的。

2．It is compulsory for winners to be tested but other participants are only tested at random.

获胜者要强制性地进行检查，而其他参与者只是随意地抽查。

3．The Olympic spirit—the spirit of competition which emphasises taking part rather than winning—has been violated by the desire to succeed at all costs.

人们不惜任何代价想获胜的愿望违背了重在参与而不是获胜的奥林匹克精神。

4．Having killed up to 50 million people in 18 months, with a tendency to strike the young and fit rather than the old, the Spanish Flu

is_believed_to_have_been the most acute

epidemic in history.

西班牙流感在18个月内使多达五千万人丧命，并且发病人群倾向年轻人和健康人而不是老年人。它被认为是历史上最严重的流行性传染病。

5．In the future，athletes who have_their_genes_changed

 might be able to do the 100 metres dash in just 8 seconds or the marathon in less than two hours.

将来，改变基因的运动员可能在8秒内跑完100米或不到两小时就能跑完马拉松。

写作运用——————————

1．She would have gone to the party if_she_had_been_invited.

要是当初被邀请的话，她就会去参加这次聚会了。

2．It_is_possible_for_him_to_pass the  driving test this time.

他这次或许能通过驾照考试。

3．As students, we should try to get good results by studying hard rather_than_cheating_in_exams.

作为学生，我们应当通过努力学习而非考试作弊来取得好成绩。

4．The book is_said_to_have_been_translated_into several foreign languages.

据说这本书已被翻译成了好几种外国语言。

5．I usually get/have_my_clothes_washed on Sundays.

我通常在星期天洗衣服。

话题与语篇填空———————————

 Records 1.have_fallen (fall) since the first Olympic Games. 2.When we talk about breaking records, we come across the issue of performance­enhancing drugs. Taking these drugs is known as “doping”. Some athletes who abuse the drugs risk 3.facing (face) serious health problems in later life. They seek 4.to_achieve (achieve) beyond their natural limits. Unfortunately, it is not easy to catch athletes using illegal drugs.It is compulsory for winners 5.to_be_tested (test) but other participants are only tested 6.at random. However, doping is not the only thing we need to worry about. What's worse, “gene­therapy” will be the next big threat. In the future, athletes who have their genes 7.changed (change) might be able to do better than they should be. The Olympic spirit has been violated by the desire 8.to_succeed (succeed) at all costs. In today's world, winners are celebrated and treated as heroes. But 9.if doping and gene­therapy continue to affect the outcomes of major sporting events, the word “hero” will have lost all 10.meaning (mean)．

话题与短文改错—————————————