21版:(步步高) (宁吉新豫晋蒙云青藏甘桂贵赣陕皖) Unit 2 The Olympi

Book 2 Unit 2 The Olympic Games

Ⅰ.阅读理解

We can video chat with astronauts aboard the International Space Station and watch live

footage(直播) from the frozen heights of communicating with a submarine(潜艇) or a

diver is not so lack of practical methods for sharing data between underwater and airborne

devices has long been a frustration for difficulty originates from the fact that radio

signals work perfectly in air travel but poorly in (声呐) signals used by underwater

sensors reflect off the surface of the water rather than reaching the air.

Now，researchers at MIT have developed a method with the potential to revolutionize

underwater communication.“What we’ve shown is that it’s actually feasible to communicate

from underwater to the air，” says Fadel Adib，a professor at MIT’s Media Lab，who led the

research.

The MIT researchers designed a system that uses an underwater machine to send sonar signals

to the surface，making vibrations(震动) corresponding to the 1s and 0s of the data.A surface

receiver then reads and decodes these tiny researchers call the system TARF.“It has

a number of potential real-world uses，” Adib could be used to find downed planes

underwater by reading signals from sonar devices in a plane’s black box and it could allow

submarines to communicate with the surface.

Right now the technology is initial study was conducted in the MIT

swimming pool at maximum depths of around 11 or 12 next steps for the researchers are to

see if TARF is workable at much greater depths and under varying conditions—high waves，storms，schools of also want to see if they can make the technology work in the other

direction—air to water.

If the technology proves successful in real-world conditions，expect “texting while diving”

to be the latest underwater fashion.

语篇解读 这是一篇说明文，讲述的是水下与陆地上的通信在之前是无法实现的。随着科技的进步，这一通讯逐渐能够变为现实。

1．What does the author mainly talk about in Paragraph 1?

A．The future of video chat underwater and in air.

B．The difficulty of communication from water to air.

C．The frustrations of developing underwater devices.

D．The current situation of communicating with a submarine.

答案 B

解析 细节理解题。根据第一段的第二、三句“But communicating with a submarine(潜艇) or a

diver is not so lack of practical methods for sharing data between underwater and airborne

devices has long been a frustration for scientists.”可知，从水里向空气中传递信息，进行交流是很困难的。故选B项。

2．What does the underlined word “feasible” mean?

A．Changeable.

C．Achievable.

答案 C

解析 词义猜测题。根据第二段的第一句“Now，researchers at MIT have developed a method

with the potential to revolutionize underwater communication.”可推断海底与外界的沟通实际上是可行的。所以该词的意思是“可行的，可实现的”。故选C项。

3．What do we know about TARF?

A．It is widely used to find downed planes.

B．It can work well at great depths underwater.

C．It is an underwater machine that sends signals.

D．It can send，receive and read signals from underwater.

答案 D

解析 细节理解题。根据第三段前三句内容可知，TARF系统可以从水下发送、接收和读取信号。故选D项。

4．Which of the following is the best title for the passage?

A．The Real-world Uses of Sonar Technology

B．A Breakthrough in the Application of Video Chat

C．Full Water-to-air Communication Closer to Reality

D．TARF Becoming a New Means of Communication

答案 C

解析 标题归纳题。根据第一段的最后两句和第二段的第一句可知，本文讲述的是水下与陆地上的通信在以前是无法实现的，但随着科技的进步，这一通讯逐渐能够变为现实。故选C项。

Ⅱ.完形填空

(2020·安徽“江淮十校”联考)

It was in 1933.I had been laid off my part-time job and could no longer make my 5 to

the family larder(食品贮藏柜)．Our only income was what Mother could make by doing

dressmaking for others.

Then Mother was 6 for a few weeks and unable to electric company cut off

the power 7 we couldn’t pay the the gas company cut off the

the 8 the Health Department made them 9 the water back on for reasons

of sanitation(卫生设备)．The cupboard got very bare. 10 we had a vegetable garden and were

B．Convenient.

D．Alternative.

able to cook some of its 11 in a campfire in the backyard.

Then one day my younger sister came tripping 12 from school，saying，“We’re

supposed to 13 something to school tomorrow to give to the poor.”

Mother started to blurt out，“I don’t know of anyone who is 14 poorer than we are，”

when her mother，who was living with us at the time，shushed(嘘) her with hand on her arm and 15 .

“Eva，” she said，“if you 16 that child the idea that she is one of the poor folks 17 her

age，she will be one of the poor folks for the rest of her 18 .There is one jar of that homemade

jelly 19 .She can take that.”

Grandmother 20 our last jar of jelly with some tissue paper and a little bit of pink

ribbon，and Sis 21 to school the next day 22 carrying her “gift to the poor”．

And， 23 if there was a problem in the community，Sis just naturally assumed that she

was supposed to be part of the 24 .

语篇解读 这是一篇记叙文。作者的家庭很穷，但是他的外婆告诉他们一个道理，不要让孩子们从小就有自己穷的思想，这样会影响他们的余生。外婆的这种做法，让他们感觉到自己很重要，是能够帮助别人解决问题的人。

5．

C．way

答案 D

解析 money钱；bed床；way道路，方法；contribution贡献。由下句论述家里的唯一收入是妈妈为别人做衣服挣的钱可知，这里是指我没有办法为家里做贡献。make money意为“挣钱”，不符合句意。make one’s contribution to意为“对……做出贡献”，符合句意。故选D。

6．

C．upset

答案 B

解析 absent缺席，离开；sick生病的；upset心烦的，混乱的；dangerous危险的。由and后“母亲无法工作”可推知，母亲是生病了。故选B。

7．

C．when

答案 C

解析 这是一个时间状语从句，until直到；before在……之前；when当……的时候；if如果。根据常识，当你交不起电费的时候，电力公司才会断电。故选C。

8．

C．electric

B．water

D．business

B．before

D．if

B．sick

D．dangerous

B．bed

D．contribution

答案 B

解析 gas煤气；water水；electric电力；business商务。由下句中讲述的卫生部让他们恢复水可知，这里停的是水。故选B。

9．

C．rebuild

答案 A

解析 turn转动；return返回；rebuild重建；look看。我们知道水电的供应都是打开一个供应阀，故用(打开，开通)。故选A。

10．ore

C．Undoubtedly

答案 D

解析 therefore因此；eventually最终；undoubtedly毫无疑问的；fortunately幸运地。这句话中的有菜可吃与前边的食物柜空了形成对比，所以是一件很幸运的事。故选D。

11．e

C．food

答案 A

解析 produce农产品；goods商品；food食物；meal饭。由于空格前的its指代a vegetable

garden，且菜园直接的产物是一些农产品，不能直接生产食物与饭。故选A。

12．

C．home

答案 C

解析 garden花园；homework家庭作业；home家；dress连衣裙。由于妹妹从学校回来，并且回来跟家人说，所以妹妹是回到家。故选C。

13．

C．buy

答案 D

解析 sell卖；transport运输；buy买；take拿，带走。由“to school(带去学校)”与“give to

the poor(送给穷人)”可知是要带去学校。并且此空格与下文中的“She can take that.”呼应。故选D。

14．

C．much

答案 B

解析 空格位于形容词比较级poorer前，应用副词来修饰。选项中只有any与much可用来修饰比较级，much用于肯定句中，在否定句、疑问句或条件句中，一般用any修饰比较级。B．any

D．a few

B．transport

D．take

B．homework

D．dress

B．goods

D．meals

B．Eventually

D．Fortunately

B．return

D．look

故选B。

15．

C．frowned

答案 C

解析 nod点头；kiss吻；frown皱眉，不同意；bite咬。由外婆的话可知，外婆不同意妈妈的做法，所以应该是皱着眉头说。故选C。

16．

C．ensure

答案 A

解析 give给；think认为；ensure确信；form形成。give idea/意为“给某人以……的想法/印象”。故选A。

17．e

C．at

答案 C

解析 despite尽管；for因为；at在；in在……里边。这里强调妹妹小时候这个时间节点，使用介词at，故选C。

18．

C．childhood

答案 A

解析 life生命，人生；school学校；childhood童年时期；adolescence青春期。从文章最后描述的这个事对妹妹以后生活的影响可知，外婆强调的是对孩子一生(life)的影响。故选A。

19．ed

C．occupied

答案 B

解析 belong属于；leave留下，剩下；occupy使用；possess拥有。下句外婆说妹妹可以拿走，所以这里指“留下，剩下”。故选B。

20．ed

C．purchased

答案 D

解析 provide提供；fill装满；purchase购买；wrap包裹。由于妹妹要带去学校，所以外婆给她包好果酱。故选D。

21．

C．set

答案 D

B．sent

D．tripped

B．filled

D．wrapped

B．left

D．possessed

B．school

D．adolescence

B．for

D．in

B．think

D．form

B．kissed

D．bit

解析 put放；send送；set使处于，使开始；trip脚步轻快地走(或跑、跳舞)。此空格与前文中的“tripping home from school”呼应。故选D。

22．ately

C．hurriedly

答案 B

解析 desperately绝望地；proudly自豪地；hurriedly匆忙地；unwillingly不情愿地。由于妹妹拿着给穷人的礼物去学校了，所以应该是感到很自豪。故选B。

23． ever

C．ever after

答案 C

解析 as ever 同往常一样；ever before以前；ever after从此以后一直；for ever永远。这句话强调这个事件对妹妹以后生活的影响。故选C。

24．on

C．society

答案 A

解析 solution解决方案；community社区；society社会；world世界。从此以后，只要社区有困难，妹妹自然而然地就会觉得自己应该是解决困难的人中的一员。故选A。

Ⅲ.语法填空

(2020·吉林长春质检)

Since July 2019，China’s online food-delivery platform Eleme 25. (carry) out a new

service of picking up garbage from its users in Shanghai.

The service comes after 26. recently-released regulation on waste management in

duals 27. throw away their garbage without being sorted out can be fined

up to 200 yuan，while companies and 28. (organize) can face fines up to 50,000 yuan.

The trash takeaway service requires residents to sort 29. (they) own garbage before it

30. (pick) up by workers from Eleme，who will ensure the waste is disposed of in the

correct garbage bins.

It’s obvious that this service is 31. (convenience) to the old，especially to the

disabled customers.32. ，many netizens on Sina Weibo don’t think Eleme is providing a

wonderful service，saying it just wants 33. (make) think 12 yuan for an order

is too s，many more people doubt if these collectors will wash their hands after dealing

34. the trash.

语篇解读 这是一篇报道类文章。主要是就上海饿了么在今年七月公布的回收打包垃圾的话题展开讨论和人们的各种反应。

B．community

D．world

B．ever before

D．for ever

B．proudly

D．unwillingly

25．答案 has carried

解析 考查动词的时态。根据本句的时间状语Since July 2019可知，用现在完成时，故答案为has carried。

26．答案 a

解析 考查冠词。regulation是单数可数名词，故答案为a。

27．答案 who/that

解析 考查关系代词。先行词是Individuals指人，此处缺少定语从句的关系词，且关系词在定语从句中作主语，故答案为who/that。

28．答案 organizations

解析 考查名词。根据and前后是并列关系，与companies并列，需要用名词复数，故答案为organizations。

29．答案 their

解析 考查代词。根据句意可知，该处代词和它所修饰的名词表所属关系，用形容词性物主代词。故答案为their。

30．答案 is picked

解析 考查动词的时态和语态。根据上下文可知，此处主语和动词之间是被动关系，在句中作谓语，主语it为单数，且全文时态为一般现在时。故答案为is picked。

31．答案 convenient

解析 考查形容词。此处需要形容词作表语，be convenient to对……方便。故答案为convenient。

32．答案 However

解析 考查副词。由空后句中don’t think可知网友不赞同这种服务，因此上下文是明显的转折关系。故答案为However。

33．答案 to make

解析 考查非谓语动词。表示“想要做某事”是want to do，因此用不定式to make。

34．答案 with

解析 考查固定短语。固定短语deal with“处理”。故答案为with。

Ⅳ.短文改错

The moment I stepped in high school，I have made up my mind to study hard for the purpose

of entering the good the first year，I made a lot of new friends，all of who were so

excellent.I felt great pressure during the second scores went up or down and I felt so

worrying.I told me that I needed to music was a good s，I would like to

talk my friends，because they understood would have some tea in the shop and then share

we laughed out happy，all the annoyance would disappear.

答案

The moment I stepped in high school，I have made up my mind to study hard for the purpose

of entering

thewho good the first year，I made a lot of new friends，all of were so

awhomor down and I felt so

andexcellent.I felt great pressure during the second scores went up

worryingmeListen.I told that I needed relaxation. to music was a good s，I

worriedmyselfListening∧would like to talk

with my friends，because they understood would have some tea in the

shop and then share

we laughed out ，all the annoyance would disappear.

secretshappily语篇解读 这是一篇记叙文，记叙了作者的高中生活。

第一处：考查动词的时态。本句为描述过去发生的事情应用一般过去时，故去掉have。

第二处：考查冠词。university为可数名词，此处表示泛指“一所好大学”，且good为辅音音素开头的单词故应用不定冠词a。故the改为a。

第三处：考查定语从句的引导词。本句为“介词＋关系代词”结构的定语从句，修饰先行词friends，且作介词of的宾语，指人应用whom。故who改为whom。

第四处：考查连词。固定短语go up and down“忽上忽下”。故or改为and。

第五处：考查形容词。修饰主语I，指人应用-ed结尾的形容词。故worrying改为worried。

第六处：考查反身代词。根据语境可知是告诉自己，故应用反身代词。故me改为myself。

第七处：考查非谓语动词。本句为动名词短语作主语，故Listen改为Listening。

第八处：考查固定短语。固定短语talk with sb.“和某人聊天”，故talk后添加with。

第九处：考查名词的数。secret为可数名词，前面没有冠词故用复数形式。故secret改为secrets。

第十处：考查副词。修饰动词laugh应用副词，故happy改为happily。