【小题1】Although David is only 2 years old, he can learn to sing the song by_______ (he).
【小题2】I'm doing a survey about how __________ (improve) English quickly.
【小题3】My daughter likes collecting. She has collected all kinds of ___________ (knife).
【小题4】I think there will be ____________ pollution in the future if we plant more trees now. ( little )
【小题5】He did his homework so __________ that he made few mistakes. ( careful )
根据语境或句意，从方框中选择恰当的词并用其正确的形式填空，使句子意思正确完整，并将答案填入答题卡上指定的位置。

【小题6】"Would you mind _______ the dishes?" "OK. I'll do them right away."
【小题7】 Henry gets on well with everyone in our class. He's always _________    to all of us.
【小题8】Martin was_    in Chinese history after he came to China and he read a lot about it.
【小题9】Teenagers are not _________ to smoke because smoking is bad for their health.
【小题10】_________ of children like watching the TV show Where Are We Going ,Dad? It's really fantastic.

The bicycle is one of the simplest and most useful inventions in the world. What is the most surprising is that it was not invented earlier, although the great inventor Leonardo da Vinci had drawn pictures for bicycles and also for flying machines and some other things. Those things were not produced until long after he died.

A person riding a bicycle uses very little energy to make the bicycle move, and there is no pollution at all when you are riding. In Chengdu, a lot of people rode bicycles to work twenty years ago. But cars instead of them now. Even so in developed countries, most people do not travel to work by bicycle. It is not because the bicycles are expensive or people feel tired if they ride to work. It is because the number of cars on the roads is becoming larger. It certainly becomes more dangerous to ride a bicycle. As a result, more people put their bicycles away and go to work in their cars. And in this way, the traffic is very crowded when people go to work by car in the morning and go home after work, the situation is becoming worse and worse.

Perhaps the best way to make riding safer and more popular is to create paths only for bicycles, and to make it so difficult and expensive for drivers to take their cars into the city that they will go back to use their bicycles. There has been a special way for bicycles on the road in Chengdu now. I think more and more people will return to ride bicycles to go to work. The air of cities will be much fresher. The sky will be a lot bluer. The people will live much happier lives.

54. Who invented the bicycle?

A. Gergy Bush.      B. Mark.      C. Leonardo da Vinci.    D. Harry Borty.

55. The traffic is very crowded ,it is because  ____________________.

A. the roads are becoming larger         B. a number of cars are on the roads 

C. there are many bicycles on the roads    D. lots of people are walking on the roads

56. Why don’t people today go to work by bicycle?

A. Because the bicycle is too expensive.   B. Because it’s very tiring to ride a bicycle.

C. Because the people dislike bicycles.    D. Because it’s very dangerous to ride a bicycle.

57. According to the passage, which of the following is TRUE?

① The bicycles were not produced until long before he died.

② A lot of people in Chengdu rode bicycles to work 20 years ago.

③ It’s not polluted for people to ride bicycles.

④ The people in Chengdu can’t go to work with a special way by bicycle now. 

A. ① ②           B. ② ③          C. ①② ③         D. ② ③ ④