閱讀理解

  When we have small cuts in the skin(皮膚), something strange may happen.The cuts are able to heal(痊愈)themselves in a couple of days.How does this happen?Read on, and you will find out the secret.

  Every living thing on the earth is made up of cells(細(xì)胞).Cells grow and make new cells.Most cells are very tiny and we can't see them with our eyes.Different cells have different uses.Our skin cells are special ones.The cells on the surface(表面)of our skin are old dead cells.New skin cells are right under the surface.These are the living skin cells.They do work for our bodies.They help protect our bodies and heal cuts.

  Our bodies make skin cells all the time.As the old cells fall off, new cells grow in the same place.Each person makes about 18 kg of skin cells during his or her life.Surface skin cells fit together closely with no gaps between them.When you cut or burn yourself, you can harm your skin cells.A small cut will not do much harm.Your skin will quickly heal itself by making new skin cells.How do skin cells.How do skin cells work?First, the cells near the cut get bigger and move into the gap; Next, these bigger cells meet in the middle.They form a new layer(層)of skin cells.Finally, new cells will grow until the gap disappears completely.In this way, your skin can grow well itself.

  How amazing the tiny cells are!Next time you have a cut, don't worry about it.Maybe in a few days, you will be surprised to find it healed.

根據(jù)短文內(nèi)容選擇最佳答案。

(1)

The underlined word“gaps”in the passage means“________”in Chinese.

[  ]

A.

突起

B.

條紋

C.

縫隙

(2)

From the passage, we know that cells ________.

[  ]

A.

are large and we can see them with our bodies

B.

can grow and make new cells

C.

aren't in most living things

(3)

Skin cells heal cuts in three steps.________ is the right order.

[  ]

A.

B.

C.

(4)

Which of the following is TRUE according to the passage?

[  ]

A.

Each person can make 18 kg of skin cells every day.

B.

Different cells have different uses in our bodies.

C.

The skin cells have little work to do in the body.

(5)

The best title for this passage should be ________.

[  ]

A.

HOW SKIN CELLS HEAL CUTS

B.

THE IMPORTANCE OF SKIN

C.

HOW TO PROTECT OUR FINGERS

答案:1.C;2.B;3.B;4.B;5.A;
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:初中英語 來源: 題型:050

閱讀理解

  You will have a lot of reading to do in this grade this year.You can do more of it in less time if you learn to read rapidly.

  Perhaps you have been told about some habits (習(xí)慣) which keep a person from reading fast and have been strongly asked to break those habits which you might have.

  Do you still have any of these bad habits?Check yourself by answering“yes”or“no”to these questions.

  (1) Do you move your lips (嘴唇) when reading silently?

  (2) Do you point to words with your finger as you read?

  (3)Do you move your head from side to side as you read?

  (4)Do you read one word at a time?

  If you answer“yes”to any of these questions,start at once to break the habit.If you move your tips,hold your fingers over them,or hold a piece of paper be-tween your lips while you are reading.Then if your lips move,your will know it and can stop them.

  If you point to words,hold the two sides of your book,one side with your left hand,the other side with your right hand.Then you won't have a free finger to use in pointing while reading.If you move your head,place your chin (下巴) in one hand and hold your head still (靜止不動的).

  If you read no more than one or two or three words at a time,you need to work very hard in learning to take in (吸收) more words at each glance (一瞥) as your eyes travel across the lines of words.

  Even if you do rather fast now,you can learn to read even faster.As you probably have been told,the secret of fast reading is to take in whole groups of words as each glance.Read in through groups and force (迫使) your eyes along the lines of words as fast as you can to make them go.Anyone who practices doing these things will he able to read faster.

(1)

You may hold your fingers over your lips while reading so as ______.

  A.to tell others to be silent

  B.to feel whether your lips move or not

  C.to hold a piece of paper between them

  D.to keep yourself from talking to others

[  ]

(2)

When you read,______.

  A.don't keep your head still

  B.don't hold your books with your hands

  C.don't stand up near a desk

  D.don't use your finger to point to words

[  ]

(3)

If you learn to read fast,______.

  A.you can read more in less time

  B.you can write faster

  C.you can understand better

  D.you can read less in more time

[  ]

(4)

You must _______ those habits that we are talking about in this reading.

  A.remember  B.have C.get rid of D.keep

[  ]

(5)

This reading is mainly about ______.

  A.the way of reading fast

  B.the importance of fast reading

  C.the bad habits in reading

  D.how to speak quickly

[  ]

查看答案和解析>>

科目:初中英語 來源: 題型:050

閱讀理解

  Good afternoon.Welcome to England.We hope that your visit will be a pleasant one.Today I'd like to tell you something about a few of our laws.

  The first one is about drinking.Now you may not buy wine in this country if you are under 18 years of age,nor may your friends buy it for you.

  The second one,noise.Enjoy yourselves by yourself,but don't make unnecessary noise,especially at night.We ask you to respect other people who may wish you be quiet.

  The third one,crossing the road.Be careful.The traffic moves on the left side of the road in this country.Use pedestrian crossing (人行橫道) and don't take any chances when crossing the road.

  My next point is about rubbish.It isn't lawful to drop rubbish in the street.When you have something to throw away,please put it in your pocket and take it home,or put it in a dustbin.

  Finally,smoking.It is against the law to buy cigarettes if you are less than 16 years of age.

  I'd like to finish by saying that if you need any kinds of help,you should contact the police.They will be glad to help you.You can call,write or go to ask any policemen.

(1)

Who do you think is most likely to make the speech?

  A.A guide. B.A person who makes laws.

  C.A teacher. D.An English officer.

[  ]

(2)

How many laws are discussed in the speech?

  A.Four.  B.Three.  C.Six.  D.Five.

[  ]

(3)

The main purpose (目的) of this speech is to ______.

  A.tell people that those above 18 can drink and smoke in England

  B.declare (宣布) the different laws in England

  C.give advice to the travelers in England

  D.warn people against going to England

[  ]

(4)

The underlined word“contact”in the last paragraph means“______”.

  A.keep up  B.go to see C.make a call to D.bring trouble

[  ]

(5)

From the passage we can learn______.

  A.in England,if you are under 18 years of age,you can't buy wine,but your friends can buy it for you

  B.you may not buy cigarettes unless you are above 16 years of age

  C.because the traffic moves on the left side of the road,you must use the pedestrian crossing when crossing the road

  D.you can't make a noise except at night

[  ]

查看答案和解析>>

科目:初中英語 來源: 題型:050

閱讀理解

  One day, Mr and Mrs White received two theatre tickets for a wonderful concert. They were very pleased because the tickets were hard to get. But they couldn't know who sent the tickets. The person didn't write his name and address in the letter.

  The Whites called all their friends in order to find out who sent the tickets, but none of them did so. And nobody knew who itwas. They couldn't help(情不自禁)wondering who sent the tickets.

  That evening, husband and wife attended the concert. It was nice performances, but they couldn't enjoy it properly because they were still worrying about where the tickets came from.

  When they returned home from the theatre, they found most of their things stolen(偷). On the table was a note. It said, "Now,you know who sent you the tickets."

  判斷下列句子是否符合短文內(nèi)容,符合的用“T”表示,不符合的用“F”表示。

  1. One day, the Whites got two tickets from a friend of theirs.

                        (  )

  2. Mr and Mrs White made telephone calls to all their friends to find out who it was.

                        (    )

  3. The concert was not at all interesting.

                        (    )

  4. Their things were taken away while they were out.

                        (    )

  5. Mr and Mrs White were quite clever and careful.

                        (    )

  6. This story is a lesson(教訓(xùn))we should remember.

                        (    )

查看答案和解析>>

科目:初中英語 來源: 題型:050

閱讀理解

  No one knows how man learned to make words. Perhaps he began by making sounds like those made by animals. Perhaps he made sounds like those he heard all round him. As the centuries(世紀(jì)) went by, he made more and more new words, This is what we mean by language.

  People living in different countries made different kinds of words. Today there are about fifteen hundred different languages in

the world. Each has many thousands of words. A very large English dictionary, for example, has four or five hundred thousand words.  But before you leave school you will learn only a few thousands more. Then you should learn more and more words. Read as many books as you can. There are plenty of books written in easy English for you to read. You will enjoy them. When you meet a new word, find it in your  dictionary. Your dictionary is your most useful book.

根據(jù)短文內(nèi)容,選擇最恰當(dāng)?shù)拇鸢浮?/p>

1. The main idea of the first paragraph is ______.  

                          

[  ]

A. how animals make sounds

B. how man made words

C. man heard different sounds round him

D. man made more and more words

2. About how many different languages are there in the world?

                          

[  ]

A. 150  B. 1500  C. 5000  D. 500

3. A very large English dictionary might have over ______ words.

                          

[  ]

A. 400,000  B. 50,000  C. 40,000  D. 800,000

4. After you leave school, you should learn ______.

                          

[  ]

A. only a thousand words  B. all the words

C. more words         D. all kinds of languages

5. If you want to know more new words, you can ______.

                          

[  ]  

A. read many difficult books  B. read easy books

C. written easy English     D. look them up in your dictionary

查看答案和解析>>

科目:初中英語 來源: 題型:053

閱讀理解

  Binhai No.3 Middle School Rules                                

  Yon must

*look clean and tidy  

*be quiet in the library                            

*stay in the playground at break time

*bring a letter from your parents if you’re ill

*stand up when a teacher comes into the  classroom                          

*hand in your homework on time

*arrive at school by half past seven

You mustn’t

                            *fight  

*bring radios or CD players to school    

*run or shout in the school buildings    

*talk loudly in the hallways        

*leave school at break time or at lunch time

                                            *Wear jeans                  

*cat or drink in the classroom

假如你是濱海三中的學(xué)生,請依據(jù)校規(guī)內(nèi)容回答下面的問題。

(1)

What are the things you must not do when you’re in the school buildings?

(2)

Can you leave school at lunch-time?

(3)

What must you do when your teacher comes into your classroom?

(4)

What do the school rules say about fight?

(5)

When must you get to school every morning?

查看答案和解析>>

同步練習(xí)冊答案