All the passengers have gone a_________ the plane.　

Don’t respond to any e-mails 　　　 personal information, no matter how official they look.（2006年天津高考题）

A. searching　　 　　B. asking　　 　　　C. requesting　　 　D. questioning

____ to reach them on the phone, we sent an email instead.

A. Fail　 B. Failed　 C. To fail　 D. Having failed

-Would you like to go fishing with me?

- _________ .

A. I'd like to　 B. I like to　 C. I'd love 　　D. I would

To test which foods are better for a long space journey ,the astronauts in Shenzhou VI had as many as 50 dishes ____.

　 A．to choose B．to be chosen　 C．to choose from 　 D．to be chosen from

________his size, I guessed that he was a basketball player.　

A. To judge from　　　 　 B. Having judged by　

C. Judging from　　 　 D. Judged by

Jet lag, caused by traveling between time zones，is becoming a common problem for frequent travelers：for 49 percent it is only a nuisance and for 45 percent it is a real problem. It is caused by disruption（混乱）to the internal biological clock，and may lead to digestive problems,tiredness,and sleep disruption.

　　Generally speaking，our biological clock is slightly disturbed if we just move into the next time zone，but jet lag becomes a problem once we have passed through three or four time zones. The body takes about one day to get over each hour of time difference. But the seriousness of jet lag problems also depends on our direction of travel. If we go north or south，we won’t notice any difference，because there is

usually no time zone change. However if we travel west we will be in advance of ourselves as far as our internal clock is concerned，and problems may arise. A

west-to-east journey，on the other hand，makes us late compared to the local time. It often demands even greater effort in adjustment since we are not quick enough to catch up with the new time schedule. Therefore，a trip from New York to Los Angeles often causes fewer problems than a Los Angeles-New York trip.

1. A traveler who suffers from jet lag has problems in ____________.

A. adjusting his biological clock

B. knowing the direction of a jet

C. knowing the distance of his flight

D. getting used to the weather of a new place

2. If one travels across three time zones， he needs about ____________ hours to get over his jet lag problem.

A. 24　　　　　 B. 36　　　 C.48　　　　 D. 72

3. A person may suffer the most serious case of jet lag when he takes a ____________ journey.

A. east-to-west　 B. west-to-east　 C. north-to-south D. south-to-north

4. The main purpose of the passage is to ____________.

A. explain the cause of jet lag problems

B. teach us how to avoid jet lag problems

C. explain the differences between time zones

D. show the ways to lessen the degree of jet lag problems

5. What does affect the biological clock?

A. healthy body　 B. direction　　 C. time zones　 D. sleeping

Although he was disabled when he was only ten years of age, yet he aimed _____, for which his classmates spoke _______ of him.?

A. high; high 　 　B. highly; highly

C. highly; high 　 D. high; highly

What China can learn from________2008 financial storm has become ________ hot topic among us.

A. the; /　　　　 B. the; a　　　　 C. /; the　　　　 D. /; a

The news 　　 is spreading around the airport is 　　　 a heavy storm is coming.

A. what; /　　　 B. that; that　　　　　 C. /; that　　　 D. that; which