that air conditioners cause so much pollution, I would never have bought one.A．Had I knownB．I had knownC．Were I to knowD．Did I know 题目和参考答案——青夏教育精英家教网—

题目内容

_____ that air conditioners cause so much pollution, I would never have bought one.

A．Had I known

B．I had known

C．Were I to know

D．Did I know

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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?

[　　]

Charles Plumb was a US Navy jet fighter pilot in Viet Nam. After 75 missions, his plane was destroyed by a surface-to-air missile. Plumb parachuted down into enemy hands. He was captured and spent 6 years in a communist Vietnamese prison.

One day, Plumb and his wife were sitting in a restaurant when a man from another table came up and said “You’re Plumb! You flew jet fighters in Viet Nam from the aircraft carrier Kitty Hawk. You were shot down!”

“How in the world did you know that?” asked Plumb.

“I packed your parachute,” the man replied. “I guess it worked”. Plumb assured him, “It sure did. If your chute（降落伞） hadn’t worked, I wouldn’t be here today.”

Plumb couldn’t sleep that night, thinking about that man. Plumb says, “I kept wondering what he looked like in a Navy uniform: a white hat, a bib in the back, and bell-bottom trousers. I wonder how many times I might have seen him and not even said ‘Good morning. How are you?’ or anything because, you see, I was a fighter pilot and he was ‘just a sailor’”.

Plumb thought of the many hours the sailor had spent at a long wooden table in the bowels of the ship, carefully weaving the shrouds(伞罩) and folding the silks of each chute, holding in his hands each time the fate of someone he didn’t know.

Sometimes in the daily challenges that life gives us, we miss what is really important. We may fail to say hello, please, thank you, congratulate someone on something wonderful that has happened to them, give a compliment, or just do something nice for no reason. As you go through this week, this month, this year, recognize people who pack your parachutes.

Why didn’t Plumb say hello to the sailor each time he passed him on the Kitty Hawk?

A. He thought the sailor was just an unimportant man.

B. He didn’t like him at that time.

C. He was very busy then.

D. He didn’t know him well then.

What did the sailor do on the Kitty Hawk at the Viet Nam War?

A. weaved clothes for the pilots. B. repaired the wooden table in the ship.

C. helped the jets start. D. packed the parachutes for the fighter pilots.

What does the writer think we should do?

A. We should help each other if they are in trouble.

B. We shouldn’t look down upon the sailors.

C. We should be thankful to others’ help.

D. We should be honest to our friends.

Which is the best title for the passage?

A. A story about a sailor. B. Who pack your parachutes?

C. Don’t forget your past! D. Never forget your friends!

A container weighs more after air is put in, __________proves that air has weight.

A.as B.it C.that D.which?

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

For several years, Americans have enjoyed teleshopping-watching TV and buying things by phone. In a number of European countries, people can turn on their TVs and shop for clothes, jewelry, food, toys, and many other things.

For example, the biggest Swedish company sells different kinds of things on TV in 15 European countries, and in one year it made $ 100 million. In France there are two teleshopping channels, and the French spend about $20 million a year to buy things through those channels.

In Germany, until last year teleshopping was only possible on one channel for 1 hour every day. Then the government allowed more teleshopping. Other channels can open for telebusiness, including the largest American teleshopping company and a 24-hour teleshopping company. .

Some people like teleshopping because it allows them to do their shopping without leaving their homes. With all the problems of traffic in the cities, this is an important reason, but at the same time, other Europeans do not like this new way of shopping. Many Europeans usually worry about the quality of the things for sale on TV. Good quality is important to them, and they believe they cannot be sure about the quality of the things on TV.

They will have to be more careful about the quality of the things they sell. They will also have to work harder to sell things that the buyers cannot touch or see in person.

A. Now teleshopping is starting in European

B. They call teleshopping “Junk on the air”

C. Teleshopping is becoming popular in Sweden.

D. German businesses are hoping this new teleshopping will help them sell more things

E. The need for high quality means that European teleshopping companies will have to be different from the American companies.

F. Teleshopping is popular among people

G. German teleshopping business is controlled by American.

Last summer Tom and his friends George and Bill wanted to take a vacation, but they did not have much . They decided that a short mountain climbing expedition(探险) was the only they could afford (负担得起). Since each of them liked climbing, the vacation would be a lot of .

Tom all the plans. He decided that they should the expenses(费用) for food and gas and that each one should bring some _____ clothes because the weather there was usually cold.

The boys were in a hurry, so they climbed slowly the day. The weather was pleasant, and they enjoyed the fresh as they climbed up a narrow path. Tom expected the to stay nice, late in the afternoon there was a heavy rain. The boys rushed toward a and decided to camp there that .

When the sun rose the next morning, they continued . As the boys went higher, the climbing became dangerous, and by that afternoon the trip appeared .

When they finally reached the of the mountain, they saw a beautiful sight. The of the sunset were yellow, red, and gold. The boys were very happy and they enjoyed the view. The farms and fields of wheat and corn appeared very small. In the distance, they could see trees, hills and valleys. They spent four more days in the mountains. They really had great fun.

1.A. work B. time C. money D. fun

2.A. vacation B. sport C. game D. trip

3.A. fun B. happiness C. trouble D. difficulties

4.A. took B. made C. had D. kept

5.A. need B. share C. make D. provide

6.A. surely B. fully C. equally D. freely

7.A. extra B. few C. less D. thin

8.A. always B. nearly C. not D. ever

9.A. fine B. rainy C. all D. first

10.A. sky B. air C. weather D. water

11.A. weather B. air C. trip D. path

12.A. and B. for C. so D. but

13.A. top B. tent C. cave D. river

14.A. day B. night C. time D. way

15.A. sleeping B. camping C. climbing D. watching

16.A. less B. more C. very D. little

17.A. easy B. tired C. excited D. endless

18.A. foot B. side C. middle D. top

19.A. scene B. view C. colors D. beauty

20.A. below B. far C. aside D. ahead

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