相关习题
 0  61269  61277  61283  61287  61293  61295  61299  61305  61307  61313  61319  61323  61325  61329  61335  61337  61343  61347  61349  61353  61355  61359  61361  61363  61364  61365  61367  61368  61369  61371  61373  61377  61379  61383  61385  61389  61395  61397  61403  61407  61409  61413  61419  61425  61427  61433  61437  61439  61445  61449  61455  61463  159627 

科目: 来源:不详 题型:阅读理解

When we can see well, we do not think about our eyes often. It is only when we can not see perfectly that we come to see how important our eyes are.
People who are nearsighted can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing and reading, become nearsighted. Then they have to wear glasses in order to see distant things clearly.
People who are farsighted face just the opposite problem. They can see things that are far away, but they have difficulty reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses too.
Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts. Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.
When night falls, colors become fainter to the eyes and finally disappear. After your eyes have grown used to the dark, you can see better if you use the side of your eyes rather than the centers. Sometimes, after dark, you see a small thing to one side of you, which seems to disappear if you turn your head in its direction. This is because when you turn your head, you are looking at the thing too directly. Men on guard duty sometimes think they see something moving to one side of them. When they turn to look straight at it, they can not see it any more, and they believe they were mistaken. However, this mistake happens because the center of the eye, which is very sensitive in daylight, is not as sensitive as the sides of the eye after dark.
小题1:We don’t know that our eyes are of great importance until ________.
A.we think about our eyes
B.we cannot see clearly
C.we wear glasses
D.we have to do much reading
小题2:According to the passage, a ________ is more likely to be nearsighted.
A.tailorB.doctorC.guardD.painter
小题3:People who are farsighted ________ .
A.cannot do a lot of close work without glasses
B.can only see things that are very close to their eyes
C.have difficulty reading a book if they hold it at arm’s length
D.have the same problem as the nearsighted people
小题4:To see a small thing at night, it is better to look ________ .
A.with wide open eyes
B.with half shut or narrowed eyes
C.straight at it
D.in a slightly different direction

查看答案和解析>>

科目: 来源:不详 题型:阅读理解

Trees are useful to man in three important ways: they give him wood and other useful things, they give him cool places, and they help to stop drought and flood.
Unluckily, in many parts of the world, man has not found that the third of these points is the most important. Man wants to make money from trees, so he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear.
This does not only mean that man will have fewer trees. The results are even worse: for where there are trees, their roots break up soil-make the rain in-and also bind the soil, thus stopping it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When all the top-soil is gone, nothing is left but useless desert.
小题1:The most important points of trees to man is ________.
A.they help him to make money
B.they give him cool
C.they give him wood and other things
D.they help him to stop drought and floods
小题2:In many places forests slowly disappear because ________ .
A.many trees have been cut down by man
B.new trees are not well looked after
C.man has not paid enough attention to planting trees
D.all the above
小题3:Land becomes desert after all trees are cut down because ________ .
A.roots of trees break up the soil
B.there are too many rainfalls
C.strong winds bring a lot of sand
D.there are no longer trees to keep the rain and protect the top-soil.
小题4: Which title best fits the passage?
A.Trees and Man.
B.The Function of Tree Wood.
C.How do People do with Trees?
D.The Usage of Tree Roots.

查看答案和解析>>

科目: 来源:不详 题型:阅读理解

Let children learn to judge their own work. A child learning to talk does not learn by being corrected all the time: if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language like other people’s. In the same way, children learning to do all the other things: they learn to do without being taught to walk, run, climb, whistle, ride a bicycle, compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes and correct them for himself. We do it all for him. We act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not.
If it is a matter of right answer, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time on such routine(常规) work? Our job should be to help the child when he tells us that he can’t find the way to get the right answer. Let the children learn what all educated persons must some day learn, how to measure their own understanding, and how to know what they know or do not know.
小题1:According to the passage, the best way for children to learn things is by ________.
A.listening to skilled people’s advice
B.asking older people many questions
C.making mistakes and having them corrected
D.doing what other people do
小题2:Which of the following does the writer think teachers should NOT do?
A.Give children correct answers.
B.Allow children to make mistakes.
C.Point out children’s mistakes to them.
D.Let children mark their own work.
小题3:According to the writer, teachers in school should ________.
A.allow children to learn from each other
B.point out children’s mistakes whenever found
C.give children more book knowledge
D.correct children’s mistakes as soon as possible
小题4:The passage suggests that learning to speak and learning to ride a bicycle are ________.
A.different from learning other skills
B.the same as learning skills
C.more important than other skills
D.not really important skills

查看答案和解析>>

科目: 来源:不详 题型:阅读理解

No one knows how man learned to make words. Perhaps he began by making sounds like those made by animals. Perhaps he grunted like a pig when he lifted something heavy. Perhaps he made sounds like those he heard all round him—water splashing, bees humming, a stone falling to the ground. Somehow he learned to make words. As the centuries 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 containsfour or five hundred thousand words. But we do not need all these. Only a few thousand words are used in everyday life. The words you know are called your vocabulary. You should try to make your vocabulary larger. Read as many books as you can. There are plenty of books written in easy language. Your dictionary is your most useful book.
小题1: What do we mean by language?
A.Sounds made by man.
B.All the words made by man.
C.Different kinds of sound.
D.The way man learns.
小题2: Form the passage we know that long long ago________.
A.no one learned how to make sounds or words
B.animals taught man to learn the language
C.man learned the language by lifting heavy things, falling to the ground,and so on
D.man followed a lot of things in nature to make sounds and words
小题3: What is the number of languages spoken in the world today?
A.500. B.5,000.C.1,500.D.15,000.
小题4:In which sentence can the word "contain(s)" be put so that it is a right one?
A.I________ several dictionaries.B.Sea water________ salt.
C.A dog _______ four legs.D.Mr. Smith _____ glasses on his nose.
小题5: Which of the followings is the best if we want to make our vocabulary larger?
A.To read more books.
B.To use the words in everyday life.
C.To use the words in class.
D.To write the words.

查看答案和解析>>

科目: 来源:不详 题型:阅读理解

Life in the future(将来) is different from now. There are not any paper money in the future. People use their credit cards when they go shopping. There are not so many stores. At weekends, people needn’t go out. They usually do some shopping at home on the Internet.
Children don’t get up early to go to school. They have lessons at home on the  Internet, too. Teachers teach their students and give them homework on the Internet. Children give the homework to their teachers on the Internet, too.
People don’t need to do much work. There are more robots(机器人). Robots do hard work for people. Parents don’t cook or wash clothes. A cooking robot cooks breakfast. In fact, robots do all the housework for us.
There are more holidays. Parents spend much time with their children. They spend a lot of time travelling around the world.
I think life in the future is very interesting. Do you think so?
小题1:What is the Chinese for the underlined phrase “credit cards”?   
A.身份证B.户口本C.信用卡D.优惠卡
小题2:Teachers teach their students __________ in the future.
A.in the classroomB.over the radio
C.on TVD.on the Internet
小题3:In the future, robots can __________ for us.
A.eat dinnerB.cook mealsC.watch filmsD.talk with friends
小题4:How does the writer like the life in the future? He thinks it is__________.
A.hard B.easy C.interestingD.healthy
小题5:Which is the best title(标题) for the passage?
A.Life in the futureB.Studying at home
C.Working at homeD.A hard life

查看答案和解析>>

科目: 来源:不详 题型:阅读理解



Everyone hopes to have a healthy lifestyle. But do you know what a healthy lifestyle is like? Here are some ways to have a healthy life.
Get active
This is the most important way of a healthy lifestyle. Walking, running, playing basketball and other sports will help you keep healthy.
Keep clean
Keep the places around you clean. Unclean and untidy places can not only make you angry but also (不但…而且)make you ill.
Eat healthily
Our health depends on (依赖于) our food, so everyone should remember to eat healthy food. The healthier food you eat, the healthier you will be.
Live green
This is the easiest way to live a healthy lifestyle. Plant trees around your house. Try your best to use less(更少的) water. Stop using things if they are bad for environment.
小题1:How many ways does the passage tell people to have a healthy lifestyle?
A.Two.B.Three.C.Four.D.Five.
小题2:How will unclean places make people feel?
A.Sad.B.Angry and ill.
C.Happy and healthy.D.Excited.
小题3:What does the underlined word “environment” mean in Chinese?
A.空气B.环境
C.矿藏D.垃圾
小题4:From the passage, which of the following is the way to live green?
A.Getting lots of exercise.
B.Keeping clean and tidy.
C.Planting trees.
D.Eating more fruit and vegetables.
小题5:Which of the following is true according to the passage?
A.Get active is the only way to keep healthy.
B.You don’t need to keep your home clean.
C.You should try your best to use less water.
D.Our health depends on our clothes.

查看答案和解析>>

科目: 来源:不详 题型:阅读理解

  There are many ways to keep healthy. Different people have different ways. Lisa's father thinks riding a bike is the best way because he likes to go to work by bike. And their home isn't far from his bank. Lisa thinks running is better than riding, so she runs every day. However, her mother thinks it's boring. She loves walking to work. Lisa's sister likes flying kites. She goes to fly kites once a week. Lisa's brother thinks playing ping-pong is a good way to keep healthy. He plays it every morning.
小题1: _____ likes riding a bike to work.
A.Lisa's motherB.Lisa's fatherC.Lisa's brotherD.Lisa's sister
小题2: Lisa's father works in a _____
A.bankB.school C.police stationD.store
小题3:Lisa's sister likes______
A.fishingB.flying kitesC.swimmingD.playing basketball
小题4:Lisa runs_______
A. once a week   B. every week      C every day     D. three times a day
小题5:The best title(题目 ) is______.
A Different Ways to Keep Healthy    
B. Different People, Different Likes
C. How to Eat Healthily             
D. How Often do You Exercise

查看答案和解析>>

科目: 来源:不详 题型:阅读理解

The coldest and most difficult place in the world in which to live is Antarctica. Antarctica is the land of snow and ice near the South Pole. Most people do not think there is much life in the icy waters around it. They are wrong.
Antarctica's seas are full of life. There are many kinds of fishes, water birds, seals and whales. They eat the thick plant life in the sea and the smaller water animals. Some whales, for example, eat more than a ton of food every day.
The most famous animal of Antarctica is the penguin. It struts around the icy as if it were a movie star walking down the street.
小题1:The best title is ____________.
A.Thick Plant LifeB.Life Around Antarctica
C.Tons of FoodD.Penguins
小题2:The most famous animal of Antarctica is the ____________.
A.whaleB.sealC.penguinD.fox
小题3:Antarctica has ____________.
A.much iceB.warm weatherC.flocks of geeseD.warm water
小题4:Around Antarctica there ____________.
A.are many peopleB.is little plant lifeC.are many animalsD.is little snow
小题5:The word “struts” in the last paragraph means____________.
A.swims gracefullyB.walks proudly C.runs swiftlyD.jumps happily

查看答案和解析>>

科目: 来源:不详 题型:填空题

Last summer, Jeff became a middle school student. He was a good student, and he always worked hard. He had a test in the first month and he finished the questions easily until he read the last one:”小题1: What’s her name?”
Of course, this question was a little special.   小题2:She was tall and her hair was dark. But Jeff didn’t talk with her and didn’t know her name. The test was over.   小题3: Then a student asked the teacher, “Is the last question very important in this test?”
“Yes,” said the teacher. “In our life, we will meet many hard-working people. They are important.  小题4: We may smile at them or say hello to them. 
 小题5: He also learned that woman’s name later. It was Kathy.
根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使短文意思通顺,内容完整,并将其标号填写在下面题号后的横线上。

查看答案和解析>>

科目: 来源:不详 题型:阅读理解

首字母填空:先通读下面的短文,掌握其大意,然后根据短文内容和所给首字母,在空格内填入一个适当的词,使短文意思完整。(共10小题;每小题0.5分,满分5分)
Tennis is in its second life. Its first game b 小题1:  in France. The name of the game comes from the French w 小题2:  "tennez". The English men c 小题3:  the game "tennis" when they watched the Frenchmen play 800 years ago.
The Englishmen liked the French game. Tennis courts were b 小题4:  in every park, in every city, just like today. The two countries played against each other. At first they played for h 小题5:. Then they won money. Later people began cheating(欺骗)to get money. Three hundred years ago the game was forbidden(禁止)to s 小题6:  the cheating. The game also d__小题7:___. Americans found the old courts when they went to Europe 100 years ago. They learned w __小题8:__  they could do about the game. They liked the game as the Englishmen did before. After returning home, the Americans built tennis courts. Tennis began to become p小题9:  in all the United States. Now it is one of the most e 小题10:  games in the world again.

查看答案和解析>>

同步练习册答案