Light travels at a speed which is about a million times faster than the speed of

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Light travels at a speed which is about a million times faster than the speed of sound. You can get some idea of this difference by watching the start of a race. If you stand some distance(距离) away from the starter, you can see smoke from his gun before the sound reaches your ears.
This great speed of light produces some strange facts. Sunlight(太阳光) takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light rays left the moon 1.3 seconds before they reached you. The nearest star is so far away that the light that you can see from it tonight started to travel towards you four years ago at a speed of nearly 2 million km. per minute. In some cases, the light from one of tonight’s stars had started on its journey to you before you were born.
Thus, if we want to be honest, we can’t say, “The stars are shining tonight.” We have to say instead, “The stars look pretty. They were shining four years ago, but their light has only just reached the earth.”
小题1:Light speed is ______ sound speed.

A．as fast as

B．a million times slower than

C．about millions of times faster than

D．about a million times faster than

小题2: If you stand 200 meters away from a man who is firing a gun to start a race, you will find out that ______.

A．you can hear the sound before you see the smoke

B．the sound does not travel as fast as light

C．the sound will reach you before the man fires

D．sound travels about a million times faster than light

小题3:Sunlight obviously(显然的) ______ than the light of the moon.

A．has to travel a greater distance

B．moves less quickly

C．travels much more quickly

D．is less powerful

小题4: The scientific way of saying "The stars are shining tonight" should be ______.

A．the stars have been shining all the time

B．the stars seen tonight will shine four years later

C．the stars were shining long ago but seen tonight

D．the starlight seen today could be seen four years ago

答案

小题1:D
小题2:B
小题3:A
小题4:C

解析

试题分析：这篇短文中作者主要介绍了光的传播速度要远远高于声的传播。文章又向我们描述了一种奇怪的自然现象，引起了人们的思考。
小题1:细节理解题。根据短文第一句话Light travels at a speed which is about a million times faster than the speed of sound.可知光的传播速度比声音的传播速度要快一百万倍；故选D。
小题2:细节理解题。根据短文第一段最后一句话If you stand some distance(距离) away from the starter, you can see smoke from his gun before the sound reaches your ears.可知，看到烟雾要比听到声音早，即声音和光传播的并不是一样快的，其他三项表述错误；故选B。
小题3:推理判断题。根据短文第二段Sunlight(太阳光) takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light rays left the moon 1.3 seconds before they reached you.两句可知，太阳光传播的距离要远远大于月光；故选A。
小题4:推理判断题。根据短文最后一句话“The stars look pretty. They were shining four years ago, but their light has only just reached the earth.”可知我们今晚看到的星光是四年前就已经发射出来了，只是我们现在才看到；与C项描述相吻合；故选C。

举一反三

The earth is our home. We must take care of it. Life today is easier than it was years ago, but it has brought some new problems. One of the biggest problems is pollution（污染）. We can see it, smell it, drink it and even it. Man has polluted the . The more people, the more pollution.Many years ago, the problem was not so serious because there were not so people. When the land was used up (用光), the river was not clean in a place,man went to place. Now man is slowly polluting the whole world pollution is still the most serious, it’s bad for things in the world.Many countries don’t le t people burn for air in houses and factories in the city. Pollution by SO2 is now the most dangerous kind of pollution. It’s caused by heavy traffic. People say it’s to ride bikes. When you are , there is no pollution. But even in developed countries, most people don’t go to work by bike. It’s not bikes are expen sive or people are tired if they ride to work. It’s because the number of cars on the roads becomes larger. So more people their bikes and go to work by cars, then things are getting . We should have special roads only for bikes and make it difficult and expensive for drivers to take their cars into the city that they will go back to use their bikes.

小题1:

A．hundred

B．hundredsof

C．hundredof

D．hundreds

小题2:

A．listen

B．listento

C．hearof

D．hear

小题3:

A．moon

B．star

C．earth

D．sun

小题4:

A．lot

B．little

C．many

D．much

小题5:

A．others

B．theothers

C．theother

D．another

小题6:

A．Air

B．Food

C．Water

D．Noise

小题7:

A．life

B．live

C．living

D．lives

小题8:

A．somethingbad	B．badsomething
C．somethinggood	D．goodsomething

小题9:

A．water

B．air

C．noise

D．white

小题10:

A．least

B．best

C．most

D．worst

小题11:

A．driving

B．biked

C．riding

D．ridden

小题12:

A．why

B．because

C．what

D．how

小题13:

A．puton

B．lookat

C．putaway

D．lookup

小题14:

A．betterandbetter	B．moreandmore
C．worseandworse	D．biggerandbigger

小题15:

A．quite

B．such

C．very

D．so

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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(美国癌症协会)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!
小题1:How many people die from smoking each year?
小题2:What does the American Cancer Society say about smoking?
小题3:Is it easy to give up smoking?
小题4:What will happen if you stop smoking sooner?
小题5:What is the best title of the article?

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Reading comprehensionA. Choose the best answer. (12分)

Letter A

To the Editor:
Why do our children have 11 weeks of summer vacation? Many years ago, 85 percent of Americans worked on farms. Children needed summer vacation because they helped with the farm work. Today only 3 percent of Americans work on farms. But our children still have long summer vacations.
American students lose one or two months of learning during their summer vacations. Away from school for so many weeks students forget what they learned. Experts say that students lose maths skills and reading skills. At the beginning of school in September, teachers have to review last year’s studies for the first four to six weeks of school.
Summer vacations are not great opportunities for learning. Most parents work outside of the home. They can’t be with their kids during the long summer months. Some families can pay for summer camps, but many can’t. Most children stay home and watch TV. They are bored. Most children do not learn new skills during the summer.
James, Teacher

Letter B

To the Editor:
I am against a longer school year. I believe people learn everywhere, not just in school. I believe children gain experience in the world. Summer vacation is a great opportunity. Kids can discover the world outside of school. They can learn to do things they can’t learn in a classroom. They can learn to swim and ride bikes. They can travel or go to summer camps. They can take time to do things like cooking and art. Some can get summer jobs. They can get work experience or help people in the community. They can spend time with people of other ages. Basically, they can get more experience in the world.
Long summer vacations give families time together. During the school year, everyone is busy. During summer vacations, we take time to do things together. Vacations are good for families.
Linda, Parent

小题1:According to the chart, which two countries have the same number of school days?

A．England and Australia .	B．Singapore and Thailand.
C．Japan and the United States.	D．South Korea and China.

小题2:James says that, many years ago, most children used their vacation time to _______________.

A．study in school	B．go to summer camps
C．have new experiences	D．help on the farm

小题3:James says most parents _______________ during the summer months.

A．travel abroad	B．are with their children
C．are busy with their work	D．go to summer camps

小题4:Linda says children can get _______________ during the summer months.

A．no time to watch TV	B．more work experience
C．more classroom time	D．better reading skills

小题5:According to Linda, children do a lot of activities except that _______________.

A．they learn to swim and ride bikes	B．they go to summer camps
C．they do cooking	D．they improve maths skills

小题6:What is best title of the Letter B?

A．Yes to a Longer School Year	B．Vacations Are a Way of Experiencing
C．Adults Need More Vacation Time	D．Vacations Are Boring to Families

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If you look at the sky one night and see something moving and shining that you have never seen before, it might be a comet (彗星).
　　A comet sometimes looks like a star. Like a planet, a comet has no light of its own. It shines from the sunlight it reflects (反射). Like the earth, a comet goes round the sun, but on a much longer path (轨道) than the earth travels.
If a comet isn’t a star, what is it then?
　 Some scientists think that a large part of a comet is water frozen into pieces of ice and mixed with iron and rock dust and perhaps a few big pieces of rock. When sunshine melts (融化) the ice in the comet, great clouds of gas go trailing after it. These clouds, together with the dust, form a long tail.Many people perhaps have seen a comet. However no one knows how many comets there are. There may be millions of comets, but only a few come close enough for us to see.
　　An Englishman named Edmund Halley, who lived from 1656 to 1742, found out a lot about the paths that comets take through the sky. Some comets move out of our sight and never come back. Others keep coming back at regular times. A big comet that keeps coming back was named after Halley because he was the one who worked out when it would come back again. Maybe you have ever seen Halley’s Comets because the last time it came close to the sun and the earth was in the year 1986. Then people all over the world were outside at night to look at it. You will probably be able to see Halley’s Comets when it comes near the earth again.
小题1:A comet is like ________.

A．sun

B．moon

C．sunlight

D．the earth

小题2:A large part of a comet is ______.

A．water and rock

B．water frozen into pieces of ice and mixed with iron

C．ice, iron and rock dust

D．only a few big pieces of rock

小题3:Maybe many people _______.

A．haven’t seen any comets	B．have seen all comets
C．have seen a comet at daytime	D．have seen a comet

小题4:Some comets keep coming back ________.

A．at any time

B．at noon

C．at regular times

D．at daytime

小题5:Halley’s Comets came back _____.

A．in 1990

B．in 1980

C．in 1986

D．in 1989

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Wang Jiaming from Beijing Chenjinglun High School says he is a lucky boy .He’s happy that he’s sitting the senior high school entrance exam in2014 instead of 2016.
On October 22,Beijing Municipal Commission of Education* announced that, from 2016,the English scores in the senior high school entrances exam will be reduced* from 120 to 100.Of the 100 points, the listening ability scores will increase to 50.Meanwhile, the points for Chinese will increase from 120 to 150.
“The change won’t affect me. I fell so lucky because English is my strongest subject,’’ said Wang. Why such a change? It places the importance on Chinese in our study and reduces students’ pressure, said Li Yi, a spokesman of the commission.
“The change will also push us to pay attention to the practical usage of English.,’’ said Li. “Students will be encouraged to learn to understand English menus and read English news on mobile phones.”
There isn’t news that other cities will have the same change. But several places are making changes to English tests in the college entrance exams.
For example, Shandong is considering taking out the listening part of the English exam in its Gaokao. But, “ being tested for less points doesn’t mean the subject can be taken lightly,” Bai Ping wrote in China Daily.
English has long been the world’s most commonly used language. Wang Jiaming said he understood the change.
“Chinese, not English, is our mother tongue*,” he said. “ but still, I think English is both interesting and useful.”
小题1: In the Beijing senior high school entrances exam of 2016, the English scores will be cut down to __________.

A．50

B． 100

C．120

D．150

小题2: Wang Jiaming feels lucky because _______

A．the exam change from 2016 doesn’t affect him

B．he doesn’t need to take the important exam

C．Chinese is his strongest subject

D．he is not good at chemistry

小题3:The sentence “ being tested for less points doesn’t mean the subject can be taken lightly,” in the passage means ______________

A．the students can spend less time on English.

B．it’s harder to for the students get a high score.

C．English is not as important and useful as before

D．studying English is still important for the students.

小题4: What is the main purpose of the change?

A．To encourage students to learn how to order meals in English.

B．To make students to learn to read English news on mobile phones.

C．To ask students to prepare for the college entrance exam.

D．To make students pay more attention to learn Chinese.

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