Many medical scientists are racing time to find a cure for H1N1as soon as possible．( )A．onB．againstC．forD．in 题目和参考答案——青夏教育精英家教网—

题目内容

16．Many medical scientists are racing time to find a cure for H1N1as soon as possible．（　　）

A．

B．

against

C．

for

D．

分析许多医学科学家们正在争分夺秒地寻找治疗h1n1的方法．

解答答案：B 　
on在…上面；against和…比赛/对抗；in在…内；for为了．此处，许多医学科学家们正在争分夺秒地寻找治疗h1n1的方法．争分夺秒也就是要与时间赛跑（against the time）．故选B．

点评考查介词用法．注意各个介词词义间的区别．

练习册系列答案

相关题目

6．One morning more than thirty years ago，I entered the Track Kitchen，a restaurant where everyone from the humblest（卑微的） to the most powerful came for breakfast．I noticed an empty chair next to an elderly，unshaven man，who looked somewhat disheveled．He was wearing a worn-out hat and was alone．I asked if I might join him．He agreed quietly and I sat down to have my breakfast．
We cautiously began a conversation and spoke about a wide ange of things．We never introduced ourselves．I was concerned that he might have no money and not be able to afford something to eat．So as I rose to go back to the counter and buy a second cup of coffee，I asked，
"May I get you something？"
"A coffee would be nice．"
Then I bought him a cup of coffee，We talked more，andhe accepted another cup of coffee，Finally，I rose to leave，wished him well，and headed for the exit．At the door I met one of my friends．He asked，
"How did you get to know Mr．Galbreath？"
"Who？"
"The man you were sitting with．He is chairman of the Board of Churchill Downs．"
I could hardly believe it．I was buying，offering a free breakfast，and feeling pity for one of the world's richest and most powerful men!
My few minutes with Mr．Galbreath changed my life．Now I try to treat everyone with respect，no matter who I think they are，and no matter another human being with kindness and sincerity．

29．What does the underlined word"disheveled"mean？B
A．Unfriendly． B．Untidy． C．Gentle． D．Kind．
30．The author bought coffee for the old man becauseA
A．he thought the old man was poor B．he wanted to start a conversation
C．he intended to show his politeness D．he would like to thank the old man
31．What is the message mainly expressed in the story？D
A．We should learn to be generous．
B．It is honorable to help those in need．
C．People in high positions are not like what we expect．
D．We should avoid judging people by their appearances．

11．When his dad died，he felt his world had turned upside-down．（　　）

1．This was an ordinary day，nothing special．Mike was walking on the street when he turned to the shop on the corner．He stopped to look at the front row of shoes，and he felt happy to see that the pair of shoes he wanted very much was still there．He looked down at his old shoes，and he felt sorry for himself，because he wanted very much to own them for his coming birthday．
Sadly，the boy walked away，deep in thought-how to tell his mother about it．He knew very well his mother had very little money．He decided not to go home at once，because he looked sad and his mother would notice it．So he went to the park and sat on the grass．There he saw a boy moving a wheelchair with his hands．Mike looked at him and was surprised to see that the boy had no feet．He looked at his own feet．"It's much better to be without shoes than without feet．"he thought．There was no reason for him to feel so sorry and sad．So he went away with a smile，thinking that he was much luckier and happier．
41．How did Mike pass the shop on the street corner？C
A．in a wheelchair       B．by bike       C．by bus          D．on foot
42．Why did Mike stop in front of the shop？A
A．To look at the shoes he liked
B．To get something for his birthday party
C．To buy a present for his friend
D．To buy the shoes
43．That pair of shoes Mike liked wasB．
A．too large for him
B．not sold yet
C．too cheap
D．not there
44．Why did Mike go to the park？C
A．Because many nice shoes were sold there
B．Because he wanted to see his disabled friend
C．Because he didn't want to make his mother worried
D．Because he wanted to play there for a while
45．What can we learn about Mike from the story？A
A．Mike loved his mother very much
B．Mike had no feet
C．Mike didn't want to stay at home
D．Mike liked new shoes very much．

8．________ he found the idea interesting，it was too difficult to be of practical use．（　　）

5．-I'll call you ______ I arrive in Shenzhen．
-Thanks，and good luck．（　　）

6．-What about having a drink？
- ．（　　）

试题分类