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 small and we can't see them with our eyes. Different cells have different uses. Our skin cells are special ones. The cells on the outside of our skin are old dead cells. New skin cells are right under the outside. These are the living skin cells. They 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. Outside skin cells fit together closely with no gaps between them. When you cut yourself, you can harm your skin cells. A small cut will not be harmful. Your skin will quickly heal itself by making new 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. In this way, your skin can grow and get well itself. How amazing the small 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.
小題1:The underlined word “gaps” in the passage means “______” in Chinese.
A.突起B.條紋C.縫隙D.代溝
小題2:From the passage, we know that cells______.
A.a(chǎn)re large and we can see them with our eyes
B.can heal few cuts themselves
C.a(chǎn)re in everything on the earth
D.can grow and make new cells
小題3:Skin cells heal cuts in three steps. ______is the right order.


小題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.
D.Every living thing on the earth is made up of skin cells
小題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
D.The Importance of Cells

小題1:C
小題2:D
小題3:B
小題4:B
小題5:A

試題分析:這篇短文主要介紹了人體皮膚的作用,重點(diǎn)介紹了皮膚上的傷口愈合的過(guò)程。
小題1:聯(lián)系上文Outside skin cells fit together closely with no ,皮膚外細(xì)胞密切配合,沒(méi)有……,可知此處指的是縫隙,故選C。
小題2:根據(jù)第二段Cells grow and make new cells. 描述,可知選D。
小題3:根據(jù)最后一段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.描述,可知選B。
小題4:根據(jù)第二段Different cells have different uses. 描述,可知選B。
小題5:這篇短文重點(diǎn)介紹了皮膚上的傷口是如何愈合的,故選A,皮膚是如何治療傷口的。
點(diǎn)評(píng):本文淺顯易懂,各個(gè)小題都能在文中找到適當(dāng)依據(jù)。只要認(rèn)真閱讀短文,注意前后聯(lián)系,就能順利完成閱讀。文章所設(shè)試題主要考察細(xì)節(jié)查找,做題關(guān)鍵是找出原文的根據(jù),認(rèn)真核查小題和原文的異同。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:初中英語(yǔ) 來(lái)源:不詳 題型:完形填空



I started learning to play pipa at the age of four. At that time,I was really   1  of pipa because the four strings always cut my fingers. The cuts were not deep   2  they were long, and they really hurt ! So my parents bought me a roll of tape to protect the  3  of my left hand.After a few days, however, I   4   the tape! When my mother found out the reason, she said   5  and bought a new roll of tape.I had only used the second roll for a few weeks  6  I lost it again! "You should try to play pipa without tape," my father said to me. But I cried and   7 another roll. My father agree and bought me another new roll.After a few months, I lost the third roll! Then the  8  , and then the fifth  After this happened eight times, my mother got really   9 !"I won't buy you any more tape," she said to me. " Now you have to play pipa without tape
You must   10  it is carelessness that hurts your fingers!"
小題1:A. fond                   B. afraid                  C. proud
小題2:A. but                  B. and                      C. then
小題3:A. arms               B. ears                    C. fingers
小題4:A. sold                 B. lost                   C. bought
小題5:A. nothing            B. anything                C. something
小題6:A. until              B. after                   C. before
小題7:A. asked for          B. worried about           C. thought of
小題8:A. third                B. fourth                 C. fifth
小題9:A. happy                B. excited                C. angry
小題10:A. expect                B. forget                  C. remember

查看答案和解析>>

科目:初中英語(yǔ) 來(lái)源:不詳 題型:完形填空

Computer games are very popular. It is natural for people towant to  1  , so playing against a computer or against a friend on the computer can be  2  to stop . “Just one more game ,” often turns into another game , then another .
Computer games do have their 3  . They are excellent for training hand /eye coordination (協(xié)調(diào)). Surgeons(外科醫(yī)生) who played computer games   4    children are often more practical . Computer games can also be   5   for teaching students. The students are open to learning while playing. They can study for longer than a  6  would be able to teach . Students can also learn at their own speed and not feel   7   to match classmates. And with computers you can  8 a task as many times as you like . The more you do this, the better you will get,    9  you can do it perfectly .
But like anything else in life, things should be 10 . Too much time on the computer can 11  your eyes . Regular breaks are needed. If students cannot  12  playing computer games , they won’t do as well in other areas in their life-not just schoolwork,   13   in developing important social skills such as how to talk with people and how to work with others as part of a  14  . And their health will become worse if they are 15 taking regular exercise.
Computer games have their place, but people must also remember it is important to have a balanced lifestyle.
小題1:
A.winB.lose C.fightD.race
小題2:
A.easy B.necessaryC.difficultD.natural
小題3:
A.rules B.a(chǎn)dvantages C.disadvantagesD.mistakes
小題4:
A.toB.betweenC.forD.a(chǎn)s
小題5:
A.goodB.badC.interestingD.necessary
小題6:
A.teacherB.parentC.doctorD.computer
小題7:
A.excitedB.pleasedC.stressedD.willing
小題8:
A.make B.practiceC.put offD.discover
小題9:
A.whenB.untilC.a(chǎn)fterD.while
小題10:
A.plannedB.developedC.balancedD.discussed
小題11:
A.break B.hurtC.relaxD.close
小題12:
A.enjoyB.startC.stopD.keep
小題13:A. but       C. and         C. or              D. though
小題14:
A.familyB.gameC.matchD.team
小題15:
A.oftenB.no longerC.a(chǎn)lwaysD.still

查看答案和解析>>

科目:初中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

閱讀短文,判斷下列句子是否符合短文內(nèi)容。符合的寫(xiě)(T),不符合的寫(xiě)(F)。
The life we know will be different a hundred years from now. We won’t be here to see it, but we can imagine how it will be. Kids will go to schools on Mars. People will live and work on space stations too. We will get there by rocket. The food we will eat won’t look the same. And our clothes will be different. There will be no more supermarkets or shops. Robots will bring everything you want to your home and do everything for you.Will this be a good thing?
小題1:Life in the future will not be all that different.
小題2:There will be schools on Mars.
小題3:People will use cars to travel around space.
小題4:We will go shopping for food and clothes.
小題5:here will be robots to do the housework.

查看答案和解析>>

科目:初中英語(yǔ) 來(lái)源:不詳 題型:完形填空

完型填空
Not long ago, I made up my mind to read a lot of books to get more knowledge. So I went to the library and __ 1  home happily with some books. But after a few days, I felt impatient(沒(méi)耐心).The   2 _____ of finishing all of them seemed impossible, because I always found it  3  to calm down(靜下來(lái)) to read a whole book. I didn’t know what to do with it. Then   4  one day I thought of “Why not make reading interesting?” This idea gave me   5  again. Reading is a journey of spirit.(精神) Every time we read a book, we are actually talking  _6 ___the writer. I tried to put all my effort(努力)into his or her books ,   7 _____ I could feel all of his or her happiness and sadness. Now books have become a part of my life.
See! Attitude(態(tài)度)can make a great ___ 8 ____  .Someone once said, “Even though(雖然) the situation is bad, people still have one freedom(自由) to ___ 9 ____  their attitude.” So, don’t complain(抱怨) about study or work. It helps  10___  .Try to see things from a different way. Believe me, this will change the situation and help you a lot.
小題1:
A.sangB.jumpedC.returnedD.danced
小題2:
A.wayB.habit習(xí)慣C.a(chǎn)dviceD.idea
小題3:
A.hardB.interestingC.happyD.easy
小題4:
A.sadlyB.quicklyC.suddenlyD.hardly
小題5:
A.a(chǎn)dviceB.hopeC.timeD.nowledge
小題6:
A.withB.a(chǎn)boutC.ofD.a(chǎn)t
小題7:
A.becauseB.thoughtC.butD.so
小題8:
A.decision決定B.differenceC.discussionD.promise承認(rèn)
小題9:
A.a(chǎn)nnounceB.chooseC.showD.hide
小題10:
A.nothingB.a(chǎn)nythingC.everythingD.something

查看答案和解析>>

科目:初中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Andrew Engel was puzzled. He was sitting in class, but had no idea what the other students were talking about. He had done his homework, paid attention to lectures, and taken notes, but nothing was familiar. “Everyone is so much cleverer than I am,” he thought. It was a strange feeling, as he was always a good student in high school.
He felt even more puzzled a few days later. He got lost on his way to his favorite cinema. What’s worse, he began having trouble finding the right words when speaking. He asked, “What’s for dinner, Mom?” after he had just eaten. Poor Andrew, he was only 15!
His parents were worried and took Andrew to see a doctor. A brain scan(掃描) made it clear: Andrew had a malignant brain tumor(惡性腦腫瘤) . It was pressing on the part of the brain that makes new memory. He should be operated on as soon as possible. Andrew was scared!
Doctors removed the tumor, but Andrew’s memory was still poor. He was told he would probably never go back to school. Andrew was eager to enter a university, but it seemed that his dream wouldn’t come true.
“Even though they told me this, I knew I wanted to go back to school,” Andrew said. “I wanted to get my memory back.”
Andrew began by auditing(旁聽(tīng)) an English class at a nearby school. In class, he took notes carefully and read his notes several times a day, then typed them again and again. He studied twelve hours a day, seven days a week. He worked ten times harder than other students. In 2007, at age 29, he graduated from a local university. Six months later, Andrew found a job.
小題1:Andrew’s strange behavior(行為) including all the following except_________.
A.having no idea what the other students were talking about
B.getting lost on his way to his favorite cinema
C.having trouble finding the right words when speaking
D.not knowing who he was
小題2:The underlined word "scared" in the third paragraph means “ __________”.
A.very frightenedB.very excited
C.very surprisedD.very happy
小題3:The tumor in Andrew’s brain __________.
A.didn’t damage his memory
B.didn’t have to be removed
C.caused his forgetfulness
D.is still in his brain
小題4:Andrew studied very hard at the nearby school because ___________.
A.he wanted to realize his dream
B.he liked to stay with other students
C.he wanted to forget his illness
D.his parents wanted him to do so
小題5:Which of the following is the best title of the article?
A.A man with an amazing brain
B.An unusual story of memory lost and found
C.How to improve your memory
D.Never lose your memory

查看答案和解析>>

科目:初中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Bend over, take a deep breath and drink some water!This is just one of hundreds of pieces of advice you might get if you have the hiccups(打嗝).Hiccups are so mysterious(神秘的).We really don’t know why they start and why they stop.
Everyone has a favorite cure for a case of the hiccups.Some people think that a good scare is necessary to get well.Others eat a little sugar.Still others drink a glass of water with a knife in it.
An American man named Jack O’Leary said that he had hiccupped 160 million times over a period of eight years.He tried 60,000 cures,but none of them worked.Finally he prayed(向…祈禱) to Saint Jude, the saint of Hopeless cases, and his hiccupping stopped immediately.
A British worker didn’t stop his hiccups until eight months later. People from all over the world wrote him letters with suggestions for getting well.He tried them all,but the hiccups continued.Finally,he drank a “secret” mixture(混合物) someone had sent him. By that evening his hiccups were gone.
Why did these cures work for these two men? No one really knows. But people who have studied many cases of hiccups have an idea. Hiccups usually go away if you believe in the cure.
小題1:        might be the best cure for hiccups.
A.Special pills
B.A spoonful of salt
C.Cold water
D.What you believe in
小題2:The British worker spent __________ in stopping his hiccups.
A.4 hours
B.2 days
C.8 months
D.8 years
小題3:What is the main idea of this passage?
A.Different ways to stop hiccups
B.What makes hiccups happen
C.How to get hiccups
D.Jack O‘Leary’s hiccups

查看答案和解析>>

科目:初中英語(yǔ) 來(lái)源:不詳 題型:完形填空

How is the weather in Xinjiang?
Xinjiang is  1   the west of China. The weather there is very  2  . It’s cold in the morning,  3  it turns warm at noon. You must have  4   the famous saying, “Put on your leather coat in the morning but put on your shirt in the  5 of the day. And you can eat watermelons at the fire.” It means the weather changes very  6  . It rains little so it’s also very  7 there. And the fruit there is very sweet  8  there is lots of sunshine. Xinjiang is also famous    9   its grapes (葡萄).
Mutton (牛肉) is Xinjiang’s popular food. Roast mutton is very delicious.  10   you go to Xinjiang one day, remember to try it.
小題1:
A.inB.onC.a(chǎn)tD.to
小題2:
A.common B.pleasant C.strangeD.usual
小題3:
A.a(chǎn)ndB.but C.so D.or
小題4:
A.look atB.thought aboutC.listened toD.heard of
小題5:
A.beginningB.front C.middleD.end
小題6:
A.slowB.slowlyC.quicklyD.quick
小題7:
A.wet B.dryC.cold D.hot
小題8:
A.because B.soC.thoughD.but
小題9:
A.a(chǎn)sB.onC.of D.for
小題10:
A.Before B.AfterC.If D.Since

查看答案和解析>>

科目:初中英語(yǔ) 來(lái)源:不詳 題型:完形填空

完形填空(每小題2分,共20分)
根據(jù)短文內(nèi)容,從A、B、C、D四個(gè)選項(xiàng)中選出一個(gè)能填入相應(yīng)空格內(nèi)的最佳答案,并把答題卡上對(duì)應(yīng)題目的答案標(biāo)號(hào)涂黑。
When you are teenagers, it seems that every time you say, “I want to …”, your parents answer, “No, you can’t.”
Young people complain that their parents do not __1__ them. When something goes__2__, most parents just don’t believe in their children. __3_ asking why, they think their kids are wrong. And not many parents allow their kids to choose for themselves.
Yes, ___4___ is true that your parents sometimes treat you as a little child. But remember that not long ago you were really a child. Your parents still remember the childish __5__you used to make. They want to protect you ___6___you don’t want them to do so.
So, if you want to get __7__ freedom(自由), please try to understand your parents and don’t lie to them. Try a friendlier way. If you want them to__8__you to stay out late, don’t just say, “All_9__ kids can stay out late.” Tell them as much as you can about what you want to do and where you’ll be and how important it is 10 you to stay out late. Then they just might say, “Yes”.
小題1:
A.enjoyB.preferC.understandD.decide
小題2:
A.badlyB.wrongC.niceD.clear
小題3:
A.ExceptB.InsteadC.WithD.Without
小題4:
A.itB.thisC.thatD.one
小題5:
A.usesB.differencesC.mindsD.mistakes
小題6:
A.ifB.thoughC.becauseD.since
小題7:
A.mostB.leastC.moreD.less
小題8:
A.a(chǎn)llowB.hopeC.wishD.a(chǎn)sk
小題9:
A.a(chǎn)notherB.othersC.the othersD.the other
小題10:
A.forB.of C.toD.with

查看答案和解析>>

同步練習(xí)冊(cè)答案