精英家教網 > 初中英語 > 題目詳情
Everybody hates rats. But rats may soon be man’s new good friend.
What happens after an earthquake? We send in rescue(援救)dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can’t get into small spaces. So now a new research project is using a smaller animal to save lives: the rat.
How does it work? First, the rat is trained to smell people. When this happens, the rat’s brain gives a signal(信號). This is sent to a small radio on its back, and then the rescuers follow the radio signals. When the rat’s brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person.
Although there are already robots which can do this job, rats are better. “Robots’ noses don’t work well when there are other smells around. Rats are good at that.” Rats can also see in the dark, they are cheaper and quicker to train than dogs, and unlike robots, they don’t need electricity!
The “rat project” is not finished, but a scientist says, “It would be great. A rat could get into spaces we couldn’t get to, and a rat would get out if it wasn’t safe.” Perhaps for the first time in history, people will be happy to see a rat in a building (but only after an earthquake, of course).
小題1:In the writer’s opinion, rats may become man’s new friend because         .
A.they can be food for people
B.they can help rescuers to find living people
C.they are lovely
D.they can completely replace man’s rescue jobs
小題2:What does the underlined word “this” mean?
A.An earthquake.
B.The rat has smelled a person
C.The rat has smelled that someone is alive
D.The rat has found a robot.
小題3:Which of the following is NOT true?
A.Rats don’t need electricity.
B.Rats are better than robots when smelling.
C.Rats are as clever as radios.
D.Rats can see things in the dark when doing rescues.
小題4:Why does the “rat project” sound great according to the passage?
A.Because rats can get into very small spaces.
B.Because rats have better noses than dogs.
C.Because rats don’t like robots.
D.Because rats are brave.
小題5:Which is the best title of this passage?
A.Ways of saving peopleB.Rats and robotsC.After earthquakeD.Rats for rescue

小題1:B
小題2:B
小題3:C
小題4:A
小題5:D

試題分析:這篇短文主要講述老鼠將來可能成為人類的好朋友。文章介紹,老鼠通過馴化,可以比狗和機器人更有利于在地震中搜尋生命跡象,也更有利于自身脫離險境。
小題1:細節(jié)理解題。根據短文a new research project is using a smaller animal to save lives: the rat.的描述,可知老鼠可以幫助救援人員找到地震中的幸存者。故選B。
小題2:詞義猜測題。根據短文the rat is trained to smell people的描述,可知當老鼠通過馴化能夠聞到人的體味的時候,老鼠的頭腦就會發(fā)出信號。故選B。
小題3:細節(jié)理解題。根據短文第四段的描述可知,選項A、B、D與短文描述相符,但是沒有提及老鼠是否比無線電靈敏。故選C。
小題4:細節(jié)理解題。根據短文A rat could get into spaces we couldn’t get to, and a rat would get out if it wasn’t safe.的描述可知,因為老鼠可以進入狹小的空間,還可以脫離險境,所以老鼠研究真的很棒。故選A。
小題5:標題歸納題。聯(lián)系上下文,文章主要介紹老鼠通過馴化,可以比狗和機器人更有利于地震救援,故應選D。
練習冊系列答案
相關習題

科目:初中英語 來源:不詳 題型:閱讀理解

How quickly can you count from one to ten? Do you use ten different words to do it? Can you do it in English, or do you have to use your first languages? Do you count on your fingers? Many people think that numbers and math are the same all over the world. But scientists have discovered that it is not true.
People in different parts of the world use different ways to count on their fingers. In the United States, people think begin counting with their first fingers, which they extend or stick out. They then extend the rest of their fingers and finally the thumb(拇指)to count to five. Then they repeat this with the other hand to get to ten. In China, people count by using different finger positions. In this way, a Chinese person can easily count to ten on only one hand.
Besides ways of finger counting, scientists have found that cultures and languages are also different when it comes to numbers. Some languages have only a few words for numbers, and others have no words for numbers. A group of scientists studied aboriginal(土著的)people in Australia. These people don’t have hand movements to stand for numbers. They don’t even have word for numbers. However, they are still able to understand different ideas about numbers.
In a similar study, researchers from the Massachusetts Institute of Technology discovered that people of the Piraha tribe(部落) in northwestern Brazil don’t have words for numbers such as “one” or “three.”. They are not able to say “five trees” or “ten trees” but can say “some trees,” “more trees,” or “many trees.” Professor Edward Gibson said that mist people believe that everyone knows how to count, “but here is a group that does not count. They could learn, but it’s not useful in their culture, so they’ve never picked it up.”
Although all humans are able to understand quantities(數量),not all languages have numbers and not all people use counting. Number words in a certain language are a result of people needing numbers in their daily lives. Now we know that people have different ideas about numbers and math, too.
小題1:The writer begins with the four questions in order to______.
A.make a surveyB.interest readers
C.tell a storyD.solve math problems
小題2:What do we learn from the difference in finger counting between the U.S. and China?
A.People from China count much faster than people from the U.S.
B.People from China need two hands to count from one to ten.
C.People of different cultures may use different ways of finger counting
D.People of different cultures use the same way of finger counting.
小題3:Which of following is true about aboriginal Australians?
A.They have only a few words for numbers
B.They have hand movements to stand for numbers
C.They can only count to five on their fingers
D.They can understand different ideas about numbers
小題4:The study of the Piraha tribe shows that____
A.people all over the world know how to count
B.People of the tribe have words for number
C.Some groups of people are not smart enough to count
D.Counting is not useful in the culture of the tribe
小題5:What is the main idea of the passage?
A.people from different cultures have different ideas about numbers and math
B.Chinese people can count more easily on their fingers than Americans
C.In some aboriginal culture,people don’t even know how to count
D.Some languages don’t have number words because people don’t need numbers.

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空

Do you worry about exam? How would you feel if you had the entrance exam to senior high school(中考)tomorrow? “I was surprised at __ I could get angry so easily with my parents before a big exam,” said Junior 3 student Wang Yangqian from Hefei, “I couldn’t ____ even after I’d been in bed for two hours.”
Not only exams but also other things, __ a big game, can also make you a bit__ from how you usually are.
You may be acting differently ___ you are stressed out. Stress is what you __ when you are worried or uncomfortable about something. Usually your hands get wet and your __ beats faster. You feel stressed because you might ask too much of yourself sometimes. Or, your parents, teachers or classmates put too much ____ on you. This can make you worried. But being stressed is not always a big ____. Everybody, even sports stars, can get a little worried before a big game.
Some kinds of stress are good. Good stress might show up when you’re called on in class or when you have to give a report. This kind of stress can__ you get things done. You may do a __ job in your book report if the anxiety pushes you to do more work before you read it to the class. Sometimes stress can turn into something ___ if you keep having stressful feeling over a long time. This kind of stress isn’t going to help you. It can make you ___. You may have trouble __ attention at school and forget things easily
So, remember to stay relaxed. It won’t be the __ of the world, even if you don’t pass the exam. 
小題1:
A.whenB.whereC.howD.what
小題2:
A.do my homeworkB.solve problems
C.stop workingD.fall asleep
小題3:
A.asB.likeC.and D.such
小題4:
A.angryB.differentC.anxiousD.the same
小題5:
A.soB.why C.howD.because
小題6:
A.feelB.lookC.soundD.seem
小題7:
A.headB.heartC.breathD.friends
小題8:
A.homeworkB.lessons C.hopesD.pressure
小題9:
A.problem B.questionsC.courageD.mistake
小題10:
A.allowB.ask C.orderD.help
小題11:
A.worseB.betterC.harderD.fewer
小題12:
A.helpfulB.bad C.wonderfulD.useful
小題13:
A.happyB.comfortableC.sickD.strong
小題14:
A.making B.finding C.payingD.showing

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Computers can injure(傷害)you. Most other injuries happen suddenly.For example,if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly.
You probably know how to ride a bike safely. Now learn to use a computer safely.

Your eyes 
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be more than 50 centimeters from the screen. Don’t forget to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on(反射)the screen. If the window is in front of you,the sun and the screen will both shine into your eyes.
Your hands and wrists(手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules: 1) Rest your wrists on something.
2) Keep your elbows(肘)as high as the keyboard.
3) Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you shouldn’t bend your back when you sit. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel(平行)to the floor. If you are sitting for a long time, get up every half an hour and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
                 Title:  How to use a computer safely
Different
小題1: of your body
Causes of the injuries
Some 小題2: of keeping you away from computer injuries
 
Your eyes
◆Too much light can injure your eyes
◆Don’t sit too close to a computer screen.
◆Your eyes should be  小題3:         50 centimeters from the screen.
 小題4: to look away from the screen sometimes.
 
Your    小題5:    and wrists
◆You  小題6:  them in the same way hundreds of times.
◆You use a keyboard for a long time.
◆小題7: your wrists on something.
◆Keep your elbows at the same       小題8: as the keyboard.
◆Exercise your hands, wrists and fingers in different ways.
 
Your back
◆You sit for many hours   小題9:  a computer.
◆ You sit in the wrong way.
◆You should keep your back             小題10:when you sit.
◆Get up every half an hour if you are sitting for a long time.

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Now more and more people in the world are getting fatter. This troubles them a lot. (1)Experts(專家) say that it has a lot to do with our eating habits.
Our eating habits are very important for good health and a strong body. Most of us like eating sweets and ice cream better than vegetables and rice. Sweets and ice cream are not bad for us if we eat them at the end of a meal. (2)If we eat them before a meal, they may take away our appetite(食欲).
It’s important for us to eat our meal in the same period each day. When we feel worried or excited, we may not want to eat. A long time ago, in England, some judges(法官) often decided whether a man was telling the truth by giving him some dry bread. If the man could not swallow(吞) the bread, it meant that he wasn’t telling the truth. Because when a man is worried about something, he will have trouble in swallowing anything dry, because he loses his appetite.
小題1:Are more and more people getting fatter in the world?________________________       ___
小題2:Do most people like eating sweets or rice?_______________________            ________
小題3:What may happen to people when they feel worried or excited?____            __________
小題4:將短文中畫線句子(1)處翻譯成漢語。                          
小題5:將短文中畫線句子(2)處翻譯成漢語。                           

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

閱讀短文,根據短文內容回答問題。(共10分,每小題2分)
Confidence is very important in daily life. It can help you to develop a healthy attitude. A study shows that the people who are more confident are much happier. They can have more chance to make themselves successful. But how to be more confident? Here are some suggestions:
Speak loud   When you are not confident, you can’t do well what you want to do. You speak in a voice so low that other people can hardly hear you. Try to speak loud enough so that people can hear you clearly. The high voice can help you become more confident.
Play sports   Physical exercise makes you tired but completely relaxed. A strong body helps you be full of confidence.
Encourage yourself  Write down a list of things you did during the day to see how many things you have done well. Did you finish your homework? Did you tell a joke that made everybody laugh? Give yourself praise for the good things you’ve done.
Get rid of (消除) fear  Fear comes along with failure. But it’s easy to overcome (克服) if you know that failure is part of your life. Don’t hide your head just because you said something stupid last time. Try to start again and believe you can do better.
Pick up a hobby   If you like singing, sing as much as you can. In some ways, a hobby can make you outstanding. And it will make you happy and confident.
小題1:Is confidence important in daily life?
小題2:How many suggestions can help you to be more confident?
小題3:Which can help you be more confident, speak in a low voice or speak loud?
小題4:How can you encourage yourself?
小題5:What’s the passage mainly about?

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Roosegaarde, an artist and designer from Dutch has thought of a device(裝置). He hopes it will make Beijing's sky clear again and help the people with masks breathe fresh air again in Beijing.
An electromagnetic field(電磁場) will pull the dirty particles in the air to the ground, and then they can be easily cleaned.
Roosegaarde says, "It's like when you have a balloon which has static electricity(靜電) and your hair goes toward it. Smog happens the same way as the hair."
His workplace has reached an agreement with the Beijing government to test the technology in one of the capital's parks.  Beijing's skies are regularly covered by grey smog. Serious cases of air pollution are often reported in Beijing. Roosegaarde says an indoor test has already shown it works well and he is confident of the results. With the help of a team of scientists and engineers, he is sure that the device can be worked outside.
"Beijing is a very good place to test the device because the smog in Beijing is quite low and there's not so much wind." says Roosegaarde. "We'll be able to make the air pure but the most difficult thing is to remove the smog. As a result, you can see the sun again."
Roosegaarde also reminds us that his aim is not only to give a plan to solve Beijing's dirty air pollution but also to make people pay attention to the environment problem. He adds, "This is not the real answer for smog. The real answer to do with it is clean cars, different industry and different lifestyles. " However, he hopes the project will make the citizens realize the differences between clean air and smog-filled air.
小題1:The device works by_______.
A.helping keep the particles out with more masks
B.pulling particles to the ground with an electromagnetic field
C.absorbing hair with a balloon with static
D.creating clean air and letting it out into the sky
小題2:What does Roosegaarde use his device for?
A.To make smog.B.To make the air clean
C.To make static electricity.D.To make Beijing's parks beautiful.
小題3:After reading the passage, we can know_______.
A.the device doesn't work well indoors
B.the people with masks can breathe fresher air
C.Beijing government agreed to test the device
D.clean cars aren't helpful to the environment in Beijing
小題4:Roosegaarde hopes people in Beijing can_______.
A.pay attention to air pollution and solve the problem finally
B.invent more devices to clean the smog in Beijing
C.drive modern cars and try different lifestyles
D.realize how serious the pollution they're facing is

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Do you want to live a happier, less stressful life? Try laughing for no reason at all. That’s how millions of people start their day at Laughter Clubs around the world and many doctors now think that having a good laugh might be one of the best ways to stay healthy.
The first Laughter Club was started in Mumbai, India, in 1995 by Dr. Madan Kataria. “ Young children laugh about 300 times a day. Adults laugh between 7 and 15 times a day,” says Dr.Kataria. “Everyone is naturally good at laughing---it’s the common language. We want people to feel happy with their lives.” There are now more than 500 Laughter Clubs in India and over 1300 in the world.
Many doctors are also interested in the effects of laughter on our health. According to a 5-year study at the UCLA School of Medicine in California, with laughing there is less stress in the body. Laughter improves our health against illness by about 40%.
So what happens at a Laughter Club? I went along to my nearest club in South London to find out. I was quite nervous at the beginning of the class. To be honest, I wasn’t interested in laughing with a group of strangers, and I was worried about looking silly. Our laughter teacher told us to clap our hands and say “ho ho ho ha, ha, ha” while looking at each other. However, our bodies can’t tell the difference between real laughter and unreal laughter, so they still produce the same healthy effects.
Surprisingly, it works! After ten minutes everybody in the room was laughing for real and some people just couldn’t stop! At the end of the class I was surprised by how relaxed and comfortable I felt. So if you’re under stress, then start laughing. You might be very pleased with the results.
小題1:The first Laughter Club was started in __________.
A. India               B. America             C. Britain   
小題2:How many Laughter Clubs are there in the world today?
A. Over 1300.          B. Over 500.           C. Over 800.  
小題3:How did the writer feel at the beginning of the class?
A. Surprised.          B. Pleased.            C. Nervous.   
小題4:When did the people in the club begin to laugh for real?
A. After ten minutes.  B. After ten hours.        C. After ten seconds.  
小題5:The article mainly tells us _____________.
A. young children laugh much more often than adults in a day
B. laughing is one of the best ways to stay healthy
C.real laughter and unreal laughter are both good for health   

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Communication is a problem for parents and children of all ages. If it’s hard for you to communicate with your parents, don’t worry about it. Here is some advice for you.
Don’t argue with your parents. Don’t try to talk about something to your parents when you are angry. Your parents probably won’t listen to you if you are shouting at them. Go somewhere else to cool off. Then think about what you want to say to your parents. If you don’t think you can speak to them at the moment, try writing a letter to them.
Try to understand your parents. Your parents may think differently from you. Tell your parents what you think, what you care about and why. Perhaps you and your parents disagree on something. Put yourself in their shoes and you may find a better way out.
Michael’s mother didn’t agree with him about buying a motorcycle. They argued over it. But they finally came to an agreement. Michael bought the motorcycle, but only drove it on certain days.
It is also important to show your love to your parents. Try to do some small things at home, like making them a cup of tea, helping do some chores, and so on. It helps to keep your relationship stronger. A good relationship with your parents can make you a better and happier person. It is worth having a try.
小題1:The passage mainly talks about the communication problem between            .
A.parents and school teachersB.school kids and their parents
C.teachers and their studentsD.parents and children of all ages
小題2:Your parents probably won’t listen to you if you don’t         .
A.show your love to themB.often stay with them
C.speak to them politelyD.do chores for them
小題3:The story of Michael shows that it’s important to___________?
A.understand each otherB.stay away from your parents
C.argue with each otherD.disagree with your parents
小題4:Doing some small things at home can make your parents feel that           .
A.you are happyB.you love them
C.you like choresD.you are relaxed
小題5:Which of the following is NOT true?
A.It’s certainly necessary to show your love to your parents.
B.It’s hard for all the teenagers to communicate with their parents.
C.Think it over before you want to talk to your parents about something.
D.Put yourself in their shoes and you may find some good ways to communicate with your parents.

查看答案和解析>>

同步練習冊答案