问题 选择题

A、B、C三个命题,如果A是B的充要条件,C是B的充分不必要条件,则C是A的(  )

A.充分条件

B.必要条件

C.充要条件

D.既不充分也不必要条件

答案

由题意得,A?B?C,故C是A的充分条件

故选A.

阅读理解

Mr. White lives on the 20th floor in a tall building in Beijing. His office is about ten kilometers from home. His wife and his children are now in America for holidays.

Today Mr. White leaves his home at eight in the moming. He takes the lift down to the first floor, gets out of the lift and walks to his car. Oh, dear! His car is broken. He waits for a taxi but there's not any empty one. So he has to go by bus.

Mr. White gets to his office at nine twenty. He is very late. Today he has a lot of work to do. He does it quickly and he has only one hamburger and a cup oforange juice for his lunch. Mr. White leaves his office at half past six. When he gets to his building, he quickly gets into the lift. Oh, dear! The lift doesn't work! He has to walk up to the 20th floor. But when he gets there, he finds he forgets to take the key with him.  

What can he do now? Poor Mr. White!            

小题1:Mr. White goes to work by bus because    _

A.he doesn't have a car

B.he doesn't like to take a taxi

C.there's something wrong with his car

D.his key is in the office小题2:Today Mr. White      _ .

A.must be very tired

B.doesn't work hard in the office

C.isn't late for work

D.eats lunch outside the office小题3:The word " poor" in the last paragraph means     _" in Chinese.

A.穷苦的

B.可怜的

C.愤怒的

D.忙碌小题4: From the passage we can see Mr. White      _.

A.is not healthy

B.is now in China

C.can't drive a car

D.likes Chinese food小题5: Which is wrong?

A.Mr. White's home is far from his work place.

B.Mr. White works very hard.

C.Mr. White works in China.

D.The lift is broken early in the morning.

多项选择题