“Yes, ladies and gentlemen, welcome aboard NASA’s Space Elevator. We’re going to leave soon. The entire ride will take about five hours, so sit back and enjoy the trip. As we rise, be sure to look out the window. You’ll see the sky change from deep blue to black. It is one of the most wonderful views（景色）you will ever see! ”
Does this sound like the Sci-Fi Channel? Well, it’s not. Scientists are thinking that a “space elevator” will be possible toward the end of the 21st century. A space elevator will consist of a long cable (電纜) from the Earth’s surface into space to an altitude(高度) of about 35,786 km. “Elevators” will travel along the cable and move people and loads between Earth and space. One of the greatest advantages is that the cost will be much less. Researchers estimate (估計) that a passenger with baggage at 150 kg might cost only $222! Compare that to today’s cost of around $3.3 million for the same weight. It would make “cheap” space travel possible. Scientists believe carbon nanotubes (納米管) may be used to make high-strength materials for the cables, although they are still being studied.
It was Arthur C. Clarke who brought this idea to the general public. In his science fiction novel Fountains of Paradise, engineers build a space elevator on top of a mountain peak on an island. One day, Clarke was asked a question by a student during his speech. The student asked when the space elevator would become a reality. Clarke answered, “Probably about 50 years after everybody stops laughing.” He’s got a point. When we stop thinking of something as impossible, then we start working on its development.
小題1:Why should passengers in a space elevator look out the window while they are moving into space?
A．Because the blue sky is very beautiful.
B．Because the view outside is wonderful.
C．Because the sky changes from black to blue.
D．Because the trip will take about seven hours.
小題2:Which of the following is NOT true according to the passage?
A．Scientists haven’t used carbon nanotubes to make the cables.
B．Traveling in space elevators will cost much less in the future.
C．Passengers will be able to travel in space elevators with baggage.
D．Space elevators will travel for 35,786 km around the Earth’s surface.
小題3:What is the best title for this passage?
A．Possible Now: Space TravelB．Cheap Space Travel
C．Going into Space in an ElevatorD．Space Travel — Impossible

小題1:B
小題2:D
小題3:C

試題分析：短文大意：本文主要講述了人們稱作太空電梯進入太空需要注意的一些事項，及太空電梯的運行等問題。
小題1:細節(jié)理解題。根據(jù)第一段As we rise, be sure to look out the window. You’ll see the sky change from deep blue to black. It is one of the most wonderful views（景色）you will ever see! ”描述，可知人們向外看主要是為了看窗外的美景。故選B。
小題2:細節(jié)理解題。根據(jù)短文第二段A space elevator will consist of a long cable (電纜) from the Earth’s surface into space to an altitude(高度) of about 35,786 km. 描述，可知太空電梯將在地表35786千米的高度運行。故選D。
小題3:標題歸納題。閱讀短文可知，本文主要講述了人們稱作太空電梯進入太空需要注意的一些事項，及太空電梯的運行等問題。故選C，乘坐太空電梯入太空。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：不詳 題型：閱讀理解

An astronaut’s work may sound exciting, but living in space isn’t as fun as you think. The website www.space.com lists the disadvantages of living in space. Here are some of them.
When astronauts work outside the station during spacewalks, they have to wear special gloves. The gloves are very tight. They can hurt the astronauts’ fingernails(手指甲) and even make them fall off.
In space, you don’t have many choices in what you eat. It’s hard to get fresh fruits and vegetables. It is not OK to eat bread because it leaves crumbs(碎屑). Crumbs could fly around everywhere.
In space, it is impossible to have a good shower because water can fly all over the ship and break the machines. Astronauts have to use a special water-shooting(噴水) gun and a washcloth.
Astronauts lose their bone strength quickly during their stay in space. So far, there is no way to solve this problem. They do exercise while they’re in space to try to keep their bones strong as long as possible.
Perhaps the hardest part of life in space is the feeling of loneliness. Astronauts sometimes have to spend weeks and even months away from Earth. They miss their friends and families.
小題1:People often think the life in space is       .
A．terribleB．lonelyC．hardD．fun
小題2:What may hurt astronauts fingernails while working in space?
A．Washcloth.B．The special gloves.
C．The water-shooting gun.D．Crumbs.
小題3:. How do the astronauts have a good shower in space?
A．By eating bread.
B．By breaking the machines.
C．By using a special water-shooting gun and a washcloth.
D．By wearing gloves.
小題4: How do the astronauts keep their bones strong in space?
A．By taking medicine.B．By doing exercise.
C．By taking a good rest.D．By walking in space.
小題5: What’s the hardest part of life for astronauts in space?
A．They feel very lonely. B．They have to stay alone in space.
C．They have no friends.D．They have no families.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

It is said that more than four million people die each year from smoking. That number is frightening.

Yet people around the world continue to smoke. In the United States, about forty-seven million adults smoke. This year, more than 430,000 Americans died of diseases which have something to do with smoking. The American Cancer Society(美國癌癥協(xié)會)says smoking harms the body greatly. It warns that smoking even a number of cigarettes is dangerous.
It’s not easy to give up smoking. However, doctors say you probably will live longer if you do stop smoking. You will feel better and look better. You also will protect the health of family members who breathe your smoke.
There is not one right way to stop smoking, doctors say. Any way can help. You can take long walks or spend time in places where smoking is not allowed. Also, you can eat a small piece of fruit or vegetable instead of having a cigarette. The sooner you stop smoking, the more you’ll reduce your chances of getting cancer and other diseases.
Stop smoking before smoking stops you!
小題1:How many people die from smoking each year?
小題2:What does the American Cancer Society say about smoking?
小題3:Is it easy to give up smoking?
小題4:What will happen if you stop smoking sooner?
小題5:What is the best title of the article?

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

“How can I learn English well?” This is a question many students ask. In my opinion, the most effective way is to learn lessons by heart. If you can recite the text and write it out, you’ve learned it fairly well. And if you can tell, in your own words, what the lesson says you’re a very successful learner indeed. Your English will be quite perfect.
This is a difficult task. However, if you try to learn by heart only part of each lesson, you’ll find it not half so hard as you might have thought.
Learning this way, you will make rapid progress. Of course, writing is also necessary. It helps you a lot on our way to success in English.
Equally important is to feel the language. You should be able to laugh at jokes and be shocked at bad news. When using English, try to forget your mother tongue. Instead of helping you, your own language gets in your way. So, never try to see English through translation.
小題1:In the writer’s opinion, the most effective way in learning English is ________.
A．to practise speaking, writing and feeling it
B．to forget your own native language
C．to translate everything into his own language
D．to memorize the English words and grammatical rules
小題2:“Instead of helping you, your own language gets in your way.”This sentence means that memorizing your own language can ________.
A．help you to study English well
B．stop you mastering English
C．make English easy to learn
D．help you notice mistakes
小題3:Equally important is to feel the language. “to feel the language” here means________.
A．to get a knowledge of English by touching
B．to be able to read and write English
C．to translate English into your own by imagining
D．to be able to experience the rich sensation of the language

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解



小題1: What is necessary to know when we speak English besides using grammar?
A．Introduction.B．The culture.C．Grammar.D．Topics.
小題2: "When speaking to a stranger, ask them where they are from and then make a connection (聯(lián)系) with that place" can be used as a sentence to_______.
A．speak about locationB．talk about sports
C．a(chǎn)ddress peopleD．talk about work
小題3: We can learn from the text that_______.
A．Americans shake hands when greeting same sex friends
B．different sex friends should hold hands when first meeting
C．when you speak to others, it's polite to look into their eyes
D．smoking is not allowed in the modem United Sates
小題4: What would be the best title for the text?
A．American English Tips.B．Language Differences.
C．The Different Language Culture.D．American Customs.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：完形填空

When I was in the third grade, I was chosen to be the princess in the school play. For weeks my mother had helped me practice my lines（臺詞）. But once on the stage, every word      from my head. Then my teacher asked me to change my role to be a narrator（解說者）for the play.        I didn’t tell my mother what had happened that day, she noticed my       and asked if I wanted to take a walk in the garden.
It was a lovely spring day. We could see dandelions（蒲公英）popping（炸開）     the grass in bunches（束）. I watched my mother bend down by one of the bunches. “I think I’ll dig up（挖光）all these weeds（野草）,” she said. “From now on, we’ll       have roses in this garden.”
“But I like dandelions,” I protested（抗議）. “All the flowers are        -- even dandelions!”
My mother looked at me seriously. “Yes, every flower gives pleasure in its own way, doesn’t it?” she asked thoughtfully. I nodded. “And that is        of people, too.” She added.
When I       that she had guessed my pain, I started to cry and told her the truth. “But you will be a wonderful narrator,” she said,       me of how much I loved to read stories aloud.
Thanks to my mother’s encouragement, I got to know everybody had his or her own      in the world, I felt proud of the role in the play.
小題1:
A．developedB．leftC．failedD．disappeared
小題2:
A．IfB．BecauseC．ThoughD．Since
小題3:
A．difficultyB．mistakeC．danger D．unhappiness
小題4:
A．throughB．pastC．beyondD．behind
小題5:
A．hardlyB．onlyC．stillD．a(chǎn)lso
小題6:
A．harmlessB．healthyC．beautifulD．fresh
小題7:
A．trueB．kindC．sameD．clever
小題8:
A．rememberedB．realizedC．explainedD．promised
小題9:
A．representingB．complainingC．recommendingD．reminding
小題10:
A．honourB．progressC．valueD．interest

查看答案和解析>>

科目：初中英語 來源：不詳 題型：完形填空

At the beginning of this century, medical scientists made an interesting discovery（發(fā)現(xiàn)）: we are built not just of flesh (肌肉) and blood but also of time. They were able to show that we all have a ‘body clock’       us, which controls the       and fall of our body energies. It can       us different from one day to the next.
The idea of a ‘body clock’ should not be too       because the lives of most living things are controlled by the 24-hour night-and-day cycle (循環(huán)). We feel       and fall asleep at night. We become       and energetic during the day. Most people will have a bad feeling if the 24-hour cycle is      . For example, people who are not used to working at night can find that lack (缺少) of sleep causes them to     badly at work.
      the daily cycle of sleeping and waking, we also have other cycle which lasts longer than one day. Most of us would       that we feel good on some days and not so good on others; sometimes our ideas seem to be so active and at other times, they are not.
小題1:
A．besideB．inside C．outside D．under
小題2:
A．lifeB．offer C．use D．rise
小題3:
A．show B．treatC．make D．change
小題4:
A．difficult B．naturalC．surprising D．frightening
小題5:
A．quiet B．tired C．comfortable D．cheerful
小題6:
A．regular B．serious C．lively D．clear
小題7:
A．disturbed B．pushed C．restarted D．troubled
小題8:
A．perform B．suffer C．count D．control
小題9:
A．With B．As well asC．Except D．Rather than
小題10:
A．a(chǎn)fford B．a(chǎn)dmire C．a(chǎn)dvise D．a(chǎn)gree

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 care about your memory（記憶力）？The following ways can help improve your memory.
Sleep: Sleep plays an important part in improving your memory. Enough sleep is very important to have a good memory.
Don’t watch TV while eating: Do not watch television while eating. Some people keep talking and eating while watching TV. Eating is a time when you can take a break from studying and rest your eyes.
Healthy food: Healthy food is important for a healthy mind. Have milk, eggs, fish and fruits. These foods have a lot of nutrients（營養(yǎng)成分）
Make the things interesting: If you find the things the teachers ask you to memorize interesting, you will memorize them more easily. For example, include music and different colors in the things you need to memorize.
Repeat（重復(fù)）the things: Repeat the things by singing or talking. Repeating is a good way to memorize things.
Exercise: Do exercise every day. It not only improves the body but improves the mind. Air in the morning keeps your mind clear. A clear mind is needed for memorizing things.
Have a rest: Don’t study for long hours. Have a rest from time to time. Studying for a long time will make you tired and you will find it harder to remember and learn things.
小題1: How many ways of improving memory are there in the passage?
A．Five.B．Six.C．Seven.D．Eight
小題2:Why shouldn’t you watch TV while eating?
A．Because it will make you eat less.
B．Because you need to rest your eyes.
C．Because you can’t take in enough nutrients in this way.
D．Because it is bad for your mind.
小題3: Which is NOT good for improving memory according to the passage?
A．Plenty of sleep.
B．Healthy food.
C．All work and a play.
D．Repeating the things you need to memorize.
小題4:The passage is written for _______.
A．parentsB．playersC．teachersD．students

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Music is different from songs. Songs express feelings with lyrics(歌詞）, but music with tones (音調(diào)).Unlike songs, music tones in themselves have no specific meanings. Different people may get different things from the same musical performance. Though some music works are difficult to understand, people need music in their daily life because it brings fun to them. Different people like different music: some love classical music, and others take an interest in pop music. Most young people like pop music.
Pop music began in the USA and became popular around the world during the 1950s and 1960s.The best-known early kind of pop music was “rock and roll”. Pop music has taken the place of （取代）native music in many parts of the world. It has caused the number of people for “jazz” music to become much smaller than in the 1950s and earlier and it has now begun to become the most popular. Much pop music is without artistic value (藝術(shù)價值), but the works of some pop singers such as the Beatles, Bob Dylan, the groups like Pink Floyd and Crosby are excellent. And there is still great interest in it today. Pop music concerts and festivals are held all over the world.　
小題1:The biggest difference between music and songs is ________.
A．feelingsB．lyrics and tonesC．languages and countriesD．meanings
小題2:Which of the following has now become the most popular according to the passage?
A．Native music.B．Jazz.C．Pop music.D．Classical music.
小題3:Which of the following is NOT TRUE according to this passage?
A．People can get different things from the same piece of music.
B．Pop music began to be popular in the mid­twentieth century.
C．The best-known early form of pop music was “rock and roll”.
D．Much pop music is of great artistic value, so it interests young people greatly.

查看答案和解析>>

同步練習(xí)冊答案