专升本英语作文题目练习（今年专升本的英语作文题目） - 学习作文网

专升本英语作文题目练习【一】

非谓语动词系列训练（二）

一：在句子意思不变的情况下用分词或不定式改写下列句子：

1.When he saw from the top of the mountain, he viewed a beautiful city.

-----___________from the top of the mountain, he viewed a beautiful city.(用分词

2．When it was seen from the of the mountain, the city looks like a garden. (用分词 ------_____________from the of the mountain, the city looks like a garden. city. (用分词

3.When he was asked why he went there, he said he was sent there to be trained for a space flight.

-------When ________ why he went there, he said he was sent there to be trained for a space flight. (用分词

4. Do you know the boy who knows Japanese?

----- Do you know the boy ___________ Japanese? (用分词

5. Do you know the boy who is called Tom.

---- Do you know the boy ________Tom.- (用分词

6. This is the man who organized the activity.

This is the man________________ the activity. (用分词

7. He followed his students and came in.

------ He came in, ____________ his students(用分词

8. He came in and was followed by his students

----- He came in ,____________by his students(用分词

9.The woman who was dressed in a blue skirt delivered a speech to us.

---- The woman _____________ in a blue skirt delivered a speech to us. (用分词

10. Because he is a physicist, he could well explained how to do the research.

---- _______ a physicist, he could well explained how to do the research. (用分词

11. He was born on the 18th of January, 1979 in Taiwan, and he was raised by his mother and was shy and quiet during his childhood.

----- ____________on the 18th of January, 1979 in Taiwan, and he was raised by his mother and was shy and quiet during his childhood. (用分词

12. The flowers his friend gave him will die unless it is watered every day.

---The flowers his friend gave him will die unless ____________ every day. (用分词

13．When we were walking dogs, we came across a famous professor.

------ When ____________ dogs, we came across a famous professor. (用分词

14. He donated over 10 billion dollars in order that he could sponsor education, culture, sports, and public welfare in the earth-stricken area.

----- He donated over 10 billion dollars _____________education, culture, sports, and public welfare in the earth-stricken area.(用不定式

15 After he had finished his homework, he played the piano.

----- ____________ his homework, he played the piano.

16. After the bridge had been completed, it went through a hard time because of the bad weather.

----______________________, it went through a hard time because of the bad weather.

17 It is said that Bell invented the telephone.

18. Bell is said __________ the telephone. (用不定式

19. I don’t decide what I should do.

I don’t decide what__________(用不定式

20. It happened that he had been invited

---- He happened _____________

21.He was so young that he could not go to school. He was too young __________ to school.

22. When the test was finished, we began our holiday.

----- The test __________, we began our holiday.(用独立主格结构

23. As time goes by ,he becoms aware of it.

With time ________ by, he becomes aware of the significant of it.

24. The moon, which travels round the earth once every month, is a natural satellite of the earth.

---- The moon, ___________ round the earth once every month, is a natural satellite of the earth.

25. Though he had been told several times, he didn’t understand me.

-----_______ several times, he didn’t understand me.

26. After the problem was solved,he took a rest.

----With the problem ____________, he took a rest.

27. If time permits, we will

28．He lay there, his hand clenched, his eyes looking straight up.

---He lay there, his hand_______, his eyes looking straight up

29.I once read a book called Man, Woman and Child, which enabled me to understand the love in a family.

------I once read a book called Man, Woman and Child, ______________ me to understand the love in a family. (用分词

30.There are many places of interest, among which is the Yunji mountain,whose scenery is very beautiful, which attracts lots of tourists from different places every year.

------There are many places of interest, among which is the Yunji mountain,whose scenery is very beautiful, ____________ lots of tourists from different places every year. (用分词

二：非谓语动词完成句子练习

there was no doctor available. (only

, playing cards at home or taking a walk in the park? (spend

. (think

包括三名儿童）. (child

5. 根据他的话判断）, he did well in his exam. (judge

the Tang Dynasty. (date

7. This is an article （由五部分组成）five parts. (consist

five parts.(make

as soon as possible. (solve

bored a lot of fans to death. (concern

, l cannot object to your marriage. (concern

子）at school? （keep）

（躲在木箱里）behind the door. (hide

,we had to walk home last night. (be.

in the broad daylight yesterday. (rob

（满是脚印）. (mark

（石油价格上涨）, the economy of that country is slowing down. (go

18. When the national flag is being hoisted, all the students stand at attention, . (fix

him, I decided to write again. (hear

20. He doesn’t seem to mind by others. (make

next week is of great importance. (hold

is very important. (hold

is of great importance. (hold

the Third World. (belong

（致力于研究）, the professor paid little attention to his surroundings. (devote

in the morning. (come

（为了确保那孩子尽快康复），five doctors took turns looking after him day and night. (ensure

，the old man struggled to his feet. (help

, the parents were taken to the dining room. （show）

（.support）

. （drop）

, I am not familiar with this kill. (tell

（为了不被注意）by others . (notice

三：合并下列句子

1. The annual school sports meeting was held yesterday. It presented a marvelous opening ceremony.

__________________________________________________________________________________________________________________________________

2. After the opening ceremony, we sat in the base of our class. We waited patiently for the beginning of the race.

_____________________________________________________________________________________________________________________

3. Some of my classmates work very hard, and they hope to fulfill their dream. __________________________________________________________________________________________________________________________________

4..My friend Christine took part in the 800-meter race. She had received training many times, so she kept calm before the race. After 400 meters, though she looked tired, she still tried her best to run. We screamed and beat the drum when we saw she passed by. She won the medal, and we were proud of it. (把短文中的从句或并列句改成非谓语动词

______________________________________________________________________________________________________________

四：语篇填空用所给动词的适当形式填空。(一）

Freud was one of the first scientists [1]_________（make）serious research of the mind. The mind is the collection of activities [2]_________（base） in the brain that involve how we act, think, feel and reason. He used long talks with patients and the study of dreams [3]___________（search） for the causes of mental and emotional problems. He also tried hypnosis(催眠. He wanted to see if [4]________（put）patients into a sleep-like condition would help ease

[5]________（trouble） minds. In most cases he found the effects only temporary. Freud worked hard, although what he did might sound easy. His method involved [6]________ (sit with his patients and [7]________（listen）to them talk. He had them [8]________（talk）about whatever they were thinking. All ideas, thoughts and anything that entered their mind had to

[9]___________（express）. There could be no[10]________（hold）back because of fear or guilt. 基础写作 :最近，你就读的学校——广东实验中学高中部将举办开放日。你将作为学校的

学生代表向前来参观的英语老师介绍高中校区的基本情况，请准备好你的解说词，文章的开头和结尾已为你写好。(学会用非谓语动词表达）

?位置交通：位于广州市西部，荔湾区；出行便利，步行到地铁站约10分钟。 ?学校历史：逾120年的悠久历史；现高中校区于2004年竣工并投入使用。 ?校园环境：占地面积约125,000平方米；植物繁茂，绿树成荫，环境优美。 ?校园设施：课室宽敞明亮，配备齐全；拥有标准运动设施，

其中综合体育馆可用于举办比赛、会议和典礼。

?师生情况：目前学生约3000人，教师约200人；全体师生正在

为学校更美好的明天共同奋斗。

?【写作要求】

?只能用5个句子表达全部内容。?【评分标准】 ?句子结构准确，信息内容完整，篇章结构连贯。

Good morning, teachers! Welcome to Guangdong Experimental High School!.....

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

非谓语动词练习答案

1．Seeing 2.Seen (原句有误，请改成When it was seen from the top of the mountain,the city is beautiful (用分词 3. asked 4. knowing 5. called 6. organizing 7. following 8. followed 9. dressed 10. Being 11. Born 12. watered 13. walking 14. to sponsor 15. Having finished 16. Having been completed 17 18.. to have invented

19.to do 20. to have been invited 21. to go 22 finished 23. going 24. travelling 25. Having been toldTold 26. solved 27.permitting 28. clenched 29.enabling 30. attracting

二：非谓语动词完成句子练习

Keys:

1. only to be told (that 2. to spend your spare/free time

3. thinking about 4. including three children/ three children included

5. Judging from / by his words/what he said

6. dating back to/from (which dates back to/from

7. consisting of / which consists of

8. made up of/which is made up of 9. to solve the problem

10. concerning the football match 11. As/So far as I am concerned

12. (in keeping five children 13. hidden in a wooden box

14. There being no bus 15. to have been robbed

16. Seen from the top of 17. Seeing from the top of

18. To see 19. marked with footprints

20. the price of oil going up 21. fixed on/upon the national flag

22. with (both his hands tied 23. Not having heard from

24. (his being made fun of 25. to be held

专升本英语作文题目练习【二】

2. Many schools demand the students wear uniforms. Some people think that such a practice can undermine their personality and individuality. What is your opinion?

3. Some people believe that pet animals such as cats and dogs cannot be kept in the cities, especially in busy modern cities. Do you agree or disagree?

4. Nowadays, teenagers cause a lot of social problems due to lack of discipline. Some people think that parents should spend more time staying with their children. Do you agree or disagree?

5. Nowadays, many children have their part-time jobs. Some people say that doing part-time jobs is useful, but others argue that children should enjoy their childhood. Discuss both sides and give your own opinion.

6. Some people think if students want to learn a foreign language, it is advisable for them to learn it in the native countries where the language is actually spoken. Whats your opinion? Give your reasons.

7. In some countries, there are women taking the positions of police officers, while some people believe that women are not suitable to work in the police force. DO you agree or disagree? Write your reasons and give examples in your experience.

专升本英语作文题目练习【三】

（一）改写一般疑问句：

（1）原句中有be动词的，将be动词提前，其他顺序不变。

例如：Thisisacat.变为Isthisacat?

（2）原句中有情态动词的（can/may/shall/would）将情态动词提前，其他顺序不变。例如：Hewouldlikeapie.变为Wouldhelikeapie?

（3）原句中是一般动词的，在句首加助动词do或dose（用于主语是第三人称动词单数的句子），其他顺序不变。例如：Iplaytheguitar.变为Doyouplaytheguitar.

（4）原句中的some变any。

注：以情态动词开头的一般疑问句，并且要求对方做肯定回答的`some不变。

（5）原句中的第一人称改为第二人称。例如:Iamanurse.变为Areyouanurse?

（6）以dose开头的一般疑问句，原来动词的第三人称单数形式要变回原形。例如：Hereadsastorybook.变为Dosehereadastorybook?

（二）改写否定句：

（1）原句中有be动词的，直接在be动词后面加not。例如：Itisadog.→It’snotadog./Itisn’tadog.

（2）原句中有情态动词的，直接在情态动词后加not。

例如：Iwouldlikeahotdog.→Iwouldnotlikeahotdog.

（3）原句中是一般动词的，在一般动词前加don’t或doesn’t（用于主语是第三人称单数的句子），doesn’t后面用原型。例如：Iseethreehamburgers.→Idon’tseethreehamburgers.

原句中的some变any例如：Ihavesomebreadan

dmilk.→Idon’thaveanybreadandmilk.

（4）以let开头的祈使句，如果是letus或letme,直接在其后加not；如果let后面其他人称代词宾格（you、him、her、them、it）就在let后面加助动词don’t。例如：Letusgotothepark.→Letusnotgotothepark.再如：Letthemdohomework.→Don’tletthemdohomework.

（三）对划线部分提问：

对划线部分提问，就是先把一个陈述句的划线部分去掉，然后变为一个特殊疑问句：一是特殊疑问句+一般疑问句；

二是特殊疑问句+陈述句（对主语或主语的定语提问，therebe结构除外）

⑴划线部分是人，用who提问。

⑴划线部分是主语，用who提问，who后面的动词要用第三人称单数形式。如：Whois；Wholikes;Whohas?

方法：who+原句的剩余部分

例如：①HelenandMikearelisteningtomusic.

→Whoislisteningtomusic?

②Ihavesomemodelplanes.

→Whohasanymodelplanes?

⑵划线部分是表语，用who提问。

方法：Who+剩余部分的一般疑问句形式

⑵划线部分是事或者物，用what提问。

方法：what+剩余部分的一般疑问句形式。

注：如果原句是therebe句型，直接用What’s+地点状语来提问。例如：①Wewouldliketobuysomethingsforaparty.

→Whatwouldyouliketobuyforaparty?

②Therearealotofcakesintheplate.

→Whatisintheplate?

⑶划线部分是物主代词或名词所有格，用Whose提问。

方法：⑴划线部分是主语的定语时，Whose+剩余部分

例如：Ourclassroomisbright.

→Whoseclassroomisbright?

⑵划线部分是表语或表语的定语时，Whose+剩余部分的一般疑问句形式例如：①ThewomanisSuYang’steacher.

→Whoseteacheristhewoman?

注：对某部分的定语提问，被修饰的部分跟随特殊疑问句往前提②ThispurseisYangLing’s.

→Whosepurseisthis?

⑷划线部分是地点，用where提问。

方法：where+剩余部分的一般疑问句形式

例如：TheyarehamingaMathslessonintheclassroom..

→WherearetheyhavingaMathslesson?

⑸划线部分是“多少”，用howmany或howmuch提问。

方法：⑴句中是可数名词的用Howmany+剩余部分的一般疑问句形式例如：Therearefifteentreesintheplayground.

→Howmanytreesarethereintheplayground?

⑵句中是不可数名词的用Howmuch+剩余部分的一般疑问句形式例如：Ihaveaglassofjuiceforbreakfast.

→Howmuchjuicedoyouhaveforbreakfast?

⑹划线部分是时间，用when或whattime（具体的几时几分）提问。方法：⑴when+剩余部分的一般疑问句形式

例如：SuYangandSuHaiareathomeonSundaymorning.

→WhenareSuYangandSuHaiathome?

⑵问具体的时间直接用Whattimeisit?或What’sthetime?问

例如：It’sthreeforty-five.

→Whattimeisit?或What’sthetime?

专升本英语作文题目练习【四】

按要求改写句子知识点梳理

一、概述

按要求改写句子主要考查学生对句子结构的掌握以及用不同句型表达同一意思的能力。考查所涉及到的句子类型有一般疑问句、否定句、反意疑问句、选择疑问句、对划线部分提问、感叹句、保持原句意思、合并成一句、简单句和复合句之间的互换以及改为被动语态等。

二、解题时需注意的几个要点

1、时态：不同的时态相对应的助动词

一般现在时：谓语动词用原形（主语为第三人称单数时，动词加s或es，变否定句、疑问句时助动词为do或does）

一般过去时：谓语动词用过去式，变否定句、疑问句时助动词为did.

现在完成时：助动词have/has+动词的过去分词

过去完成时：助动词had+动词的过去分词

一般将来时：will/be going to +动词原形

过去将来时：would/was or were going to +动词原形

现在进行时：am/is/are＋动词的现在分词

过去进行时：was/were＋动词的现在分词

2、语态：主动语态变为被动语态的谓语结构

一般现在时：am/is/are＋动词的过去分词

一般过去时：was/were+动词的过去分词

一般将来时：will be+动词的过去分词

情态动词：can/may/must/need等情态动词＋be++动词的过去分词

3、改反意疑问句时注意hardly, never, seldom, few, little, no等词表达的是否定意义，变反意疑问句时用肯定形式。

4、在合并句子时，有些连词如not only…but also…, neither…nor…, either…or…是就近原则，连接两个主语时动词形式取决于与动词邻近的主语。而both…and…连接两个主语时,主语是复数。

5、简单句和复合句之间的互换常见的有：带有疑问词的宾语从句改为特殊疑问词＋to＋动词原形的不定式；结果状语从句so…that…改为enough to或too…to…的简单句。

6、保持原句意思改写句子时注意时态不变。

三、习题

练习一

1. We do our homework every evening. （改为否定句）

We _________ ________ our homework every evening. 对划线部分提问

________ ________ do they have a class meeting?

3. She could hardly understand this passage. (改为反意疑问句

She could hardly understand this passage, _________ __________?

4.The manager told him how to get useful information. (改为否定句

The manager _________ _________ him how to get useful information.

5. Tom’s sister can speak English and Japanese very well. (改为反意疑问句

Tom’s sister can speak English and Japanese very well, _________ _________?

对划线部分提问

_________ _________ he live twenty years ago?

7. Sam does some cleaning in the morning. (改为否定句

Sam _________ do _________ cleaning in the morning.

对划线部分提问

_________ _________ have the students worked on the survey?

9. Your father used to ride a bike. （改成反意问句）

Your father used to ride a bike, _______ ________? （对划线提问）

__________ ___________ the population of Germany?

11. Mr. Wang washes his car once a month. （改为一般疑问句）

Mr. Wang (对划线部分提问

will Susan come back from Athens?

13. My friends lost their way when they were traveling in Hong Kong. (改为一般疑问句

________ your friends ________ their way when they were traveling in Hong Kong?

14. 对划线部分提问

________ ________ has Yao Ming been in the Rocket Team?

15. She put the digital camera on the bed just now. (改为否定句

She _________ _________ the digital camera on the bed just now.

16. Mark's flown to Hainan Island for winter holidays. (改为反意疑问句

Mark's flown to Hainan Island for winter holidays, _________ _________?

(专辑. (划线部分提问

_________ did Super Girl Zhou Bichang _________ to Vienna?

18. I’ve already saved enough money to buy a new car. (改为否定句

I ________ saved enough money to buy a car ________.

19. Lily used to have long straight hair. (改为反意疑问句

Lily used to have long straight hair, ________ ________?

20. He has already been there .(改为一般疑问句

__________ he been there __________?

21.They decided that they wouldn't have the picnic because of the bad weather. (改为简单句

They decided __________ _________ have the picnic because of the bad

weather.

22. The English people hardly ever shake hands between the strangers .( 改为反意疑问句

The English people hardly ever shake hands between the strangers, __________ __________?

23. They grew some sunflowers in their garden last year.（改为否定句）

They __________ __________ any sunflowers in their garden last year.

24. Jane drinks milk every morning.（改为一般疑问句）

_________ Jane ___________ milk every morning? （就划线部分提问）

___________ map ___________ to Class 4?

26. You can choose only one of the two: a mini-TV or a DVD player. (改为选择疑问句

you want a mini-TV a DVD player?

27. That detective film is so amazing. （改为感叹句）

___________ ___________ amazing detective film!

28. He has some money left.（改成否定句）

He money left.

29. （划线部分提问）

do the members of the film society meet?

30. His mother knew why the little boy was unhappy all day. (改为一般疑问句

_______ his mother _______ why the boy was unhappy all day?

31. He looks very funny with that hat on. (改为感叹句

_______ _______ he looks with that hat on!. 对划线部分提问

_______ _______ they build this factory?

33. I have already finished the test paper.（改为否定句）

I ________ finished the test paper ________.

34. Johnson denied cheating in the competition.（改为反意疑问句）

Johnson denied cheating in the competition, ________ ________? （对划线部分提问） ________ ________ the story need to be funny?

36. Sam does some cleaning in the morning. (改为否定句

Sam _________ do _________ cleaning in the morning.

对划线部分提问 _________ _________ have the students worked on the survey?

38. （对划线部分提问） _________ _________ has he been a top fashion designer?

39. 对划线部分提问

________ ________ will they move into the new school?

40. to go to the People’s Square by underground. (对划线部分提问

________ _______ did it take you to go to the People’s Square by underground?

练习二：

1. Gold is less valuable than diamond. (保持句意不变

Gold is ________ ________ valuable as diamond.

2. He told the children to go and watch his tank of Ghost fish. (改为被动语态 The children ________ ________ to go and watch his tank of Ghost fish.

3. Unless I have a quiet room, I cannot do any work. （保持句意不变）

I cannot do any work ________ I _________ have a quiet room.

4. The manager arrived here a few minutes ago. （保持句意不变）

The manager has _________here ________ a few minutes.

5. They will send him to work in Japan for one year. (改为被动语态

He will ________ _________ to work in Japan for one year.

6. The words on the notice board are very small. I can’t see them clearly.(保持句子原意

The words on the notice board are small I can’t see them

clearly.

7. We can solve the problems with the help of the teacher. (改为被动语态 The problems can _________ _________ with the help of the teacher.

8. We can’t finish the work in such a short time. (保持原句意思

It’s _________ _________ us to finish the work in such a short time.

9. We must keep the noise under 50 dbs.(分贝（改成被动语态）

The noise must ________ _______ under 50 dbs here.

10. Mike doesn’t like classical music. Billy doesn’t either. （合并成一句） _________ Mike nor Billy __________ classical music.

11. The room is so dirty that we can’t live in it.（保持句意不变）

The room isn’t __________ _________ for us to live in.

12. No one knows when we will start tomorrow. （保持原句意思）

No one knows start tomorrow.

13. The Smiths will invite the professor to take part in the party. (改成被动语态 to take part in the party by the Smiths.

14. If you are not brave, you’ll lose your last chance.（保持原句意思）

you are ’ll lose your last chance.

15. They store much information in the computer. (改成被动语态

Much information ________ ________ in the computer.

16. Don’t throw rubbish here and there. Our teacher said to us. (合并为一句

Our teacher told us ________ ________ throw rubbish here and there.

17. If John doesn’t apologize for what he did, I will tell the teacher about his bad behavior.

（保持原句意思）

_______ John _______ for what he did, I will tell the teacher about his bad behavior.

18. I don't know where we can grow vegetables in the city. (改为简单句 I don't know _________ _________ grow vegetables in the city.

19. People used to enjoy themselves chatting on MSN when it worked well. (保持句意基本不变

People used to _________ a lot of _________ chatting on MSN when it worked well.

20. If you don’t improve your handwriting, you will lose marks in the exam. (合成同义句

You will lose marks in the exam ________ you ________ your handwriting.

21. To go fishing is fun. （句意不变）

_____ is fun _____ ______ fishing.

22. Dick was so short that he couldn’t touch the top of the bookshelf.（保持句意基本不变）

Dick wasn’t __________ __________ to reach the top of the bookshelf.

23. “Can I borrow your bike for a while or not?”（保持句意基本不变）

Tom asked his sister __________ he __________ borrow her bike or not for a while.

24. The couple couldn’t decide which flat they should choose at first. （保持原句意

思）

The couple couldn’t decide which flat at first.

25. Meaningless information is difficult for the little boy to remember. （保持原句意思）

is difficult for the little boy remember meaningless information.

26. People throw away millions of plastic bags in our city every day. （改成被动语态）

Millions of plastic bags away in our city.

27. She was so careless that she couldn’t find the mistakes in her test paper. (保持句意基本不变

She was _______ _______ to find the mistakes in her test paper.

28. We will hold the next Olympic Games in Beijing in 2008.（改为被动语态）

The next Olympic Games will _______ _______ in Beijing in 2008.

29. The elderly man pushed the birds into the river.（改为被动语态）

The birds ________ ________ into the river by the elderly man.

30. Dolphins are so clever that they can follow the instructions.（保持句意基本不变） Dolphins are ________ ________ to follow the instructions.

31. We can’t finish the work in such a short time. (保持原句意思

It’s _________ _________ us to finish the work in such a short time.

32. They invited the astronaut and his wife to the party on Christmas Eve.(改为被动语态

The astronaut and his wife _________ _________ to the party on Christmas Eve.

33. The little girl didn’t go to bed unless the grandmother told her a story. (保持句意基本不变

The little girl didn’t go to bed _________ the grandmother _________ tell her a story.

34. The plane is so big that it can carry 300 passengers at one time. （改为简单句）

The plane is big _________ _________ carry 300 passengers at one time.

35. Did they know the answer to the question? Ididn’t know… (合并为一句 I didn’t know ________ they had ________ the answer to the question.

Keys

练习一

1. don’t do 2. How often 3.could she 4.didn’t tell 5.can’t she

6.where did 7.doesn’t any 8.How long 9.didn’t he 10.What is

专升本英语作文题目练习【五】

①常常能听到这样一种说法：人的脑子用多了，会死掉许多细胞、人脑多用了会笨，这种说法是没有科学道理的。

②事实上，人的肌体的各个部位，几乎都是越用越健康，脑子也是一样。让我们先来看一个数据：经科学家研究证明，人的大脑皮层，大约有140亿个神经细胞，也叫神经元。这么多数量的脑细胞，对一个人的一生来说，足够足够了。有人计算过，如果一个人活到100岁的话，经常运用的脑神经细胞只不过10多亿个，还有80%90%的脑细胞没动用。所以，根本不会有什么脑子多用会笨的事情。

③生命在于运动，这是生物界的'一个普遍规律。人的机体，用则灵，不用则衰；脑子用得勤的人，肯定聪明。因为这些勤于用脑的人，脑血管经常处于舒展的状态，脑神经细胞会得到很好的保养，从而使大脑更加发达，避免了大脑的早衰。相反，那些懒于用脑思考的人，由于大脑受到的信息刺激比较少，甚至没有，大脑很可能就会早衰。这跟一架机器一样，搁在那里不用就要生锈，经常运转就很润滑。外国就有过这样的研究，科学家观察了一定数量的2070岁的人，发现长期从事脑力劳动的人，到了60岁时仍能保持敏捷的思维能力，而在那些终日无所事事、得过且过的懒人当中，大脑早衰者的比例大大高于前者。

④除了懂得脑子多用只会聪明、不会笨的道理以外，我们还应该了解多用脑、可防老的道理。这对老年人来讲尤为重要。我们常说，大脑是人体的司令部，如果大脑迟钝了，身体各器官的生理功能当然也不会旺盛。所以，保持大脑的活力，就能促进其他机体、器官保持活力；大脑如早衰，也会影响其他机体器官的早衰。老年人的健康状况，往往是生理、心理、环境等因素互相影响的结果，老年人保持着勤于用脑的好习惯，就会有一种很好的心理状态，可以使自己的生活、精神充满活力。

⑤勤于用脑，延缓衰老，这个道理是很科学的。老年人如此，何况我们青少年呢？让我们大家养成勤于用脑的良好习惯吧。

18．用自己的话对第②段中画线部分的内容进行概括。（1分）

___________________________________________________________________

19．第③段中画线的部分综合运用了______________________________等说明方法，说明了____________________________________________________的道理。（2分）

20．第④段说明多用脑，可防老的道理，谈了两方面的原因：一是生理方面的，就是多用脑能够____________________________________________；二是心理方面的，就是多用脑可以___________________________________________。（2分）

21．人的机体的各个部位，几乎都是越用越健康，这句话中的几乎能删去吗？为什么？（2分）

_____________________________________________________________________

22．把全文分为两个部分，请用‖划出。（1分）

① ② ③ ④ ⑤

23．你在生活中也经常用脑，读了这篇文章，有些什么？（2分）

_______________________________________________________________ ____

参考答案：

18.人的脑神经细胞足够一生运用。 19.作诠释、作比较、打比方。脑子用得勤（的人），肯定聪明。或：脑子多用只会聪明（不会笨）。20.促进其它肌体、器官保持活力；使生活、精神充满活力。 21.不能删去。几乎表明并非全部，也有例外，删去后不能表达出这层意思。 22.①②③║④⑤ 23.本题鼓励学生各抒己见，只要符合题意，言之成理即可给分。