网址:http://m.1010jiajiao.com/timu_id_4430677[举报]
Scientists would like to place a huge mirror in space above the earth. It might be sixty miles wide. It would be used to catch the rays (光线) of the sun. It would direct the sun’s rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.
Why do they want to do this? The sun’s rays could be helpful in many ways. They could light up cities by night. The warm rays could stop frosts (霜冻) which might come at night and hurt fruit crops. They could melt (融化) dangerous icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.
1.The huge mirror would ______.
A.stand 60 miles in height (高度) B.be 60 miles from side to side
C.cover 60 miles of the earth D.be 60 miles above the earth
2.The mirror would be used to ______.
A.reflect (反射) sunlight B.absorb (吸收) sunlight
C.see what the earth looks like D.see how clouds move
3.The strong light from the mirror could possibly ______.
A.hurt fruit crops B.set fire to cities
C.bring longer daytime D.shine through walls
4.The huge mirror is ______.
A.something in a story B.already made
C.just an idea D.to be made soon
查看习题详情和答案>>
阅读理解
阅读下列短文,从每题所给四个选项(A,B,C和D)中,选出最佳选项.
Man always wanted to fly. For hundreds of years they watched birds flying and wished that they could fly, too. Birds fly very easily. They spread(展开) their wings(翅膀) and float (漂浮) on the air. The air keeps them up for many hours.“If birds and kites can stay up in the air, perhaps we can, too.”they thought.
At first they made wings like birds. Then they jumped off high buildings in order to fly. Many men did this but they all failed. After many failures (失败) they stopped trying to fly with wings. Then two brothers tried another way. They tried balloons (气球).“Hot air is lighter than cold air,”they said, “That is why hot air goes upwards. If we fill a balloon with hot air, it will go upwards.”
After many experiments, they made two men go up in a balloon full of hot air. A great crowd of people watched. The balloon rose to a height (高度) of 900 metres. The wind blew it along for nine kilometers. Then it came gently back to earth. For the first time man traveled through the air!
1.Hundreds of years ago men realized that ________.
[ ]
A.birds fly easily because there is air
B.birds fly easily because they are small
C.birds fly easily because they have wings
D.birds fly easily because they are light
2.When some men tried to fly with wings, ________.
[ ]
A.only a few of them succeeded
B.only the two brothers succeeded
C.many of them succeeded
D.none of them succeeded
3.Which of the following did men first think of when they wanted to fly?
[ ]
Scientists would like to place a huge mirror in space above the earth. It might be sixty miles wide. It would be used to catch the rays (光线) of the sun. It would direct the sun’s rays upon the earth as a child might do to make sunlight dance on the wall with a hand mirror.
Why do they want to do this? The sun’s rays could be helpful in many ways. They could light up cities by night. The warm rays could stop frosts (霜冻) which might come at night and hurt fruit crops. They could melt (融化) dangerous icebergs in the ocean. Perhaps they could change cloud movements and bring rain where it is needed.
【小题1】The huge mirror would ______.
A.stand 60 miles in height (高度) | B.be 60 miles from side to side |
C.cover 60 miles of the earth | D.be 60 miles above the earth |
A.reflect (反射) sunlight | B.absorb (吸收) sunlight |
C.see what the earth looks like | D.see how clouds move |
A.hurt fruit crops | B.set fire to cities |
C.bring longer daytime | D.shine through walls |
A.something in a story | B.already made |
C.just an idea | D.to be made soon |
完形填空:
阅读下面短文, 掌握其大意, 然后从1~25各题所给的四个选项中, 选出一个最佳答案.
(A)One rainy Saturday afternoon, Nancy and Smith were wondering 1 , when suddenly Smith had an idea.“I know, ” he said eagerly (焦急地), “I'll take you to a place my father used to 2when I was a boy. No, don't ask questions, just get your umbrella and get into the car. ”
Half an hour later they stopped 3 a large building and Nancy laughed.
“Oh, it's the waxworks exhibition. Do you know, I've 4 before?”
And Smith said, “Oh, we used to 5 often when I was little. There used to be a lot of famous people inside, all 6 wax, but I suppose they've changed most of them now. ”
While Smith was buying the tickets at the paydesk, Nancy 7 .
“Did your mother use to come too ? ” she asked.
“Not very often. ”Smith told her. “She used to stay at home and 8 babies, come on, up these stairs. ”
At the top of the stairs stood an attendant (服务员) 9 some catalogus (目录册). Nancy went up to her, opening her handbag, while Smith watched her.
“How much are the catalogues, please? ” Nancy asked, but the girl 10 . And she didn't realize that she had been talking to a waxwork until she heard Smith laughing behind her.
1.
[ ]
A. what to do it B. how to do
C. what to do D. not to do
2.
[ ]
A. take me B. take me to
C. taking me D. taking me to
3.
[ ]
A. outside B. outside of
C. inside D. inside of
4.
[ ]
A. never gone B. never been
C. never went D. never been to
5.
[ ]
A. coming here B. coming there
C. come there D. come here
6.
[ ]
A. made from B. made in
C. made of D. made into
7.
[ ]
A. looked round B. ran about
C. stole away D. went back
8.
[ ]
A. look for B. look at
C. look through D. look after
9.
[ ]
A. to hold B. holding
C. to be holding D. held
10.
[ ]
A. make no answers B. made no answer
C. make no speech D. made no speech
(B)
No one can change the weather, 11 can control the weather. But we can tell what the more important changes in the weather will be. This way of telling 12 the weather will be like on the 13 day or two 14 weather forecasting.
For many centuries and in all countries people have studied the weather and tried to make weather forecasting.
15 distant objects 16 hills and tall trees seem 17 very clear and near. This is a sign of much water 18 in the air, and therefore rain will probably come.
Rings round the sun are a sign of coming rain.
19 feel in their bones the coming of 20 weather. Their joints (骨关节) ache. Some birds fly 21 if fine weather is coming but they fly near the ground if rainy or stormy weather is 22 . It is probably because of the insects (昆虫) which they are hunting 23 they fly low.
24 have been made by people who 25 their eyes and brains to make weather forecasting.
11.
[ ]
A. None B. Nobody
C. Nobody of us D. No one of us
12.
[ ]
A. whether B. in which
C. what D. whatever
13.
[ ]
A. following B. followed
C. being fine D. being followed
14.
[ ]
A. is calling B. is naming
C. called D. is called
15.
[ ]
A. Some time B. Sometimes
C. Sometime D. Some times
16.
[ ]
A. such like B. such that
C. such as D. for example
17.
[ ]
A. be B. to be
C. to do D. to find
18.
[ ]
A. vapour B. gas
C. liquid D. steam
19.
[ ]
A. Many of people B. Much of the people
C. Many people D. Many of the peoples
20.
[ ]
A. getting dry B. wet
C. dry D. getting wet
21.
[ ]
A. high B. to tall buidings
C. to a height (高度) D. highly
22.
[ ]
A. by the way B. in the way
C. in a way D. on the way
23.
[ ]
A. that B. in which
C. for the reason D. for which
24.
[ ]
A. Most the above sayings
B. Most of the above sayings
C. Most above words
D. Most of the above words
25.
[ ]
A. have made B. has made
C. has used D. have used
查看习题详情和答案>>阅读理解:
By midnight, a group of students, led by their school master,had reached a height(高度)of 1,500 feet which was about 1,000 feet away from the top of the mountain.But at this point they had to stop climbing because one of the boys became seriously ill. The only thing the master could do was to return to the mountain hut(小屋)where they had spent the evening.From there,he telephoned the police.the police immediately decided to send a helicopter(直升飞机)with a doctor on board, for it was the quickest way to make the doctor reach the boy.
The helicopter soon arrived but the sides of the mountain were so steep(陡峭)that the helicopter could not land(登陆).A helicopter usually lands on four wheels(轮子),but it can land on two.the man who flew the helicopter,therefore(因此),kept it in the air with only one wheel touching the mountainside while the master carried the boy on board.
1.The story took place at the ______ one night.
[ ]
A.the top of a mountain
B.the foot of a mountain
C.the mountainside
D.the top of the mountain
2.The first thing that the school master did was to carry the sick boy to the mountain hut because ______.
[ ]
A.they had spent the evening there
B.he wanted to use the telephone in the hut
C.there was a hospital nearby
D.he could find a doctor there
3.The police decided to send a helicopter to the mountain hut because ______.
[ ]
A.no other ways could make a doctor reach the sick boy quickly enough
B.it was the quickest means to drop some medicine to the sick boy
C.it was the quickest way to reach the teacher and tell him how to save the boy
D.it could carry a doctor on board
4.______ the helicopter arrived.
[ ]
A.It was a long time before |
B.at once |
C.Presently |
D.About half an hour later |
5.A helicopter has ______.
[ ]
A.one wheel |
B.two wheels |
C.a lot of wheels |
D.four wheels |