[单项选择]Jim Green has （　） many interesting places in China.
A. been to
B. been in
C. gone to
D. gone in

[单项选择]Astronaut Jim Voss has enjoyed many memorable moments in his career, including three space flights and one space walk. But he recalls with special fondness a decidedly earthbound(只在地球上的) experience in
the summer of 1980 when he participated in the NASA-ASEE Summer Faculty Fellowship Program. Voss, then a science teacher at West Point was assigned to the Marshall Space Flight Center’s propulsion(推进) lab in Alabama to analyze why a hydraulic fuel pump seal on the space shuttle was working so well when previous seals had failed. It was a seemingly tiny problem among the vast complexities of running the space program` Yet it was important to NASA because any crack in the seal could have led to destructive results for the astronauts who relied on them.
"I worked abit with NASA engineers, "says Voss, "but I did it mostly by analysis. I used a handheld calculator, not a computer, to do a thermodynamic(热力学的) analysis. "At the end of the summer, he, like the other NASA-ASEE fellows wor
A. Because previous seals all failed.
B. Because it was very complex in running the space program.
C. Because great care has to be taken of the hydraulic fuel pump sealing.
D. Because any crack in the seals would cause disastrous results for astronauts.

[单项选择]Jim has gained so much weight that a lot of his clothes don't fit him any more.
A. put off
B. put down
C. put on
D. put up

[简答题]As a gardener, Jim has to water the flowers and ______the grass in the garden every morning
A. A．trim
B．improve
C．refine
D．repair

[填空题]How many years has she been married？
She has been married （）.

[单项选择]Even though he has lived in China for many years, Mark still can not （　） himself to the Chinese customs.
A. adopt
B. adept
C. adapt
D. accept

[单项选择]For how many years has aluminum been marketed


A. 40.
B. 75.
C. 80.
D. 150.

[单项选择]Passge Three