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.”
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
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
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
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
A friend of mine named Paul received an expensive car from his brother as a Christmas present. On Christmas Eve when Paul came out of his office, a street urchin(顽童) was walking around the shining car. “Is this your car, sir?” he asked. Paul answered, “Yes, my brother gave it to me for Christmas.” The boy was surprised. “You mean your brother gave it to you and it did cost you nothing? Sir, I wish…” He hesitated(犹豫). Paul thought of course he knew what the boy wanted, but what the boy said surprised him greatly. “I wish,” the boy went on, “that I could be a brother like that.” Paul looked at the boy in surprise, and then he said again,“Would you like to take a ride in my car?” “Oh yes, I’d love to,” the boy answered.
After a short ride, the boy said and with his eyes shining, “Sir, would you mind driving in front of my house?” Paul smiled a little. He thought he knew what the boy wanted. He wanted to show his neighbors that he could ride home in a big car. But Paul was wrong again. “Will you stop where those two steps are?” the boy asked. He ran up to the steps.
Then in a short while Paul heard him coming back, but he was not coming fast. He was carrying his little crippled(残疾的) brother. He sat down on the step and pointed to the car.
“There he is, Buddy, just like I told you upstairs.
His brother gave it to him for Christmas and it didn’t cost him a cent. And
some day I’m going to give you one just like it…then you can see for yourself al
l
the nice things in the Chris
tmas
windows that I’ve been trying to tell you about.”
Paul got out and lifted the boy to the front seat of his car. The shining-eyed elder brother climbed in beside him and the three began an unforgettable holiday ride.
1.The street urchin was very surprised when _______.
A. he met Paul
B. Paul told him about the car
C. Paul received an expensive car
D. he was walking around the car
2. From the story we can see the urchin _______.
A. wished to give his brother a car
B. wanted Paul’s brother to give him a car
C. wished he could have a brother like Paul’s
D. wished Paul could be a brother like that
3.The urchin asked Paul to stop his car in front of his house ______.
A. to show he had a rich friend
B. to show his neighbors the big car
C. to let his brother ride in the car
D. to tell his brother about his wish
4. We can find from the story that _______.
A. the urchin wished Paul to give his
car to Buddy
B. the urchin wished to have a rich brother
C. the urchin had a deep love for his
brother
D. the urchin’s wish came true in the end
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Huaihua Foreign Language School Lin Nan, Teacher of English Yingfeng Street, Huaihua, China Tel:0745-2709348 Fax: 0745-2709756 E-mail: Linan@21cn.com Zip code: 418000 |
Daqing Children’s Hospital Liu Hong, Doctor 12 Xingling Road, Changchun, Jilin 130027 Tel: 0431-5645972 13704358529(mobile) Fax: 0431-5768904 E-mail:cc1h@163.com |
|
Red Star Farm Zhang Hui, Farmer Shanghai Village, Zhejing, 419100 Tel: 0745-6826194 13973098479(mobile) |
Tiantai Taxi Company Yang Jun, Driver 235St. Tongzhi, Hangzhou, Zhejiang31007 Tel: 0571-7038385 Fax: 0571-7065834 E-mail: hzyi@163.com |
1.You may telephone ______ for help if your younger sister is ill.
A. Yang Jun B. Zhang Hui C. Liu Hong D. Li Nan
2. We can call ______ when we want to take a taxi to Hangzhou Railway Station.
A. 13973098479 B. 0745-2709348 C. 0571-7038385 D. 13704358529
3.Of the four, we can’t send fax to the ______.
A. driver B. teacher C. doctor D. farmer
4.If you would like to learn English, please send an E-mail to ______.
A. Linan@21cn.com B. cclh@163.com
C. hzyi@163.com D. hhmx@163.com
We know the mosquito very well. Mosquitoes fly everywhere. They can be found almost all over the world, and there are more than 2,500 kinds of them.
No one likes the mosquito. But the mosquito may decide that she loves you. She? Yes, she. It’s true that male mosquito doesn’t bite(咬) and only the female(雌性的) mosquito bites because she needs blood to lay eggs. She is always looking for things or people she wants to bite. If she likes what she finds, she bites. But if she doesn’t like your blood, she will turn to someone else for more delicious blood. Next time a mosquito bites you, just remember you are chosen. You’re different from the others!
If the mosquito likes you, she lands on your body without letting you know. She bites you so quickly and quietly that you may not feel anything different. After she bites, you will have an itch(痒) on your body because she puts something from her mouth together with your blood. By the time the itching begins, and she has flown away.
And then what happens? Well, after her delicious dinner, the mosquito feels tired. She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, hundreds of eggs.
1.“Mosquito” means ______ in Chinese.
A. 苍蝇 B. 蜻蜓 C. 蜘蛛 D. 蚊子
2.If the mosquito doesn’t bite you, it will ________.
A. get angry with you B. be afraid of you
C. make a lot of noise D. choose another one
3. The mosquito bites you _________.
A. when you’re asleep B. because you have chosen it
C. too quickly to let you know D. but doesn’t like you
In the USA, children start school when they are five years old. In some states(州) they must stay in school they are sixteen. But most students are seventeen or eighteen years old when they secondary(中等的) schools. There are two kinds of schools in the USA: public schools and private(私立的) schools. children go to public schools. Their parents don’t have to their education because the school get from the government（政府）.
If a child goes to a private school, his parents have to get enough money for his schooling. Some parents like private schools though they are much more expensive.
Today about half of the high school students in universities after they finish secondary schools. A student at a state university doesn’t have to pay very much his parents live in that state. Many students while they are studying at universities. In this way they get into working habits(习惯) and live by their own hands.
1.A. and B. so C. until D. since
2.A. leave B. enter C. reach D. pass
3.A. Several B. Most C. A few D. Few
4.A. look up B. pay for C. ask for D. think over
5.A. books B. teachers C. food D. money
6.A. still B. never C. surely D. already
7.A. play B. change C. study D. meet
8.A. before B. because C. because of D. though
9.A. smoke B. drink C. fight D. work
10.A. good B. bad C. happy D. wrong
– Must I get to school at 7:30 every morning?
– ________. Just arrive before 8 o’clock.
A. No, you needn’t B. No, you mustn’t C. No, you can’t D. No, you don’t
