一、词汇运用
1.　It's known that____________(围绕)around the Sun once takes the Earth about 365 earth days.
2.　The boy hasn't been____________(意识到)of his mistake yet. Let him think carefully.
3.　Many people may wonder whether____________(外星人)have ever been to the Earth.
4.　Would you tell me the____________(陌生人)appearance so that the police can find him?
5.　Do scientists agree on the____________(possible)of living on Mars for humans?
6.　The long____________(distant)between the two cities remains a problem for the young couple.
7.　At last, the two countries stopped fighting and signed a peace____________(agree).
8.　As there're certainly many____________(different)between life in space and life on Earth,
　　astronauts need to take special training courses before they enter space.

1. circling
2. aware
3. aliens
4. stranger’s
5. possibility
6. distance
7. agreement
8. differences

(　　)　1.　At present, our spacecraft ________ slow ________ carry many people to Mars.
　　　　　
A. are too; to B. is enough; to C. are so; that D. is too; that

一、1-5: ACCDB
6-10: BCCAB

(　　)　2.　There is not any water ________ air on the Moon.
　　　　　
A. and B. but C. or D. not

一、1-5: ACCDB
6-10: BCCAB

(　　)　3.　Scientists keep trying to find another planet ________ a suitable environment for humans
　　　　　to live on.
　　　　　
A. has B. which have C. with D. which with

一、1-5: ACCDB
6-10: BCCAB

(　　)　4.　Road salt is commonly used to clear the snow on roads during winter ________ it makes it harder for water and snow to freeze.
　　　　　
A. unless B. though C. if D. because

一、1-5: ACCDB
6-10: BCCAB

(　　)　5.　−−Excuse me, could you tell me ________?　　−−There's an e - shop on the third floor.
　　　　　
A. where can I have my MP4 repaired B. where I can have my MP4 repaired
　　　　　
C. how can I go to the e - shop D. how I can go to the e - shop

一、1-5: ACCDB
6-10: BCCAB

(　　)　6.　My parents have me ________ to English all at once, but I shall have my CD player ________ first.
　　　　　
A. to listen; fixed B. listen; fixed C. listened; fix D. listen; fix

一、1-5: ACCDB
6-10: BCCAB

(　　)　7.　−I'm not sure ________ that female Noble Prize winner will attend our conference.
　　　　　　　　　________ she comes, I'll let you know at once.
　　　　　
A. that; If B. whether; That C. if; If D. whether; Whether

一、1-5: ACCDB
6-10: BCCAB

(　　)　8.　There's no doubt ________ Mars is the nearest planet ________ an environment similar to
　　　　　that of the Earth.
　　　　　
A. that; has B. whether; with C. that; with D. whether; that has

一、1-5: ACCDB
6-10: BCCAB

(　　)　9.　After watching the video, each student has been aware ________ in the river alone.
　　　　　
A. of the danger of swimming B. how dangerous swimming
　　　　　
C. of how dangerous it is to swim D. how the danger of swimming

一、1-5: ACCDB
6-10: BCCAB