7.　　　 Driving a car is not so difficult as you imagine, if you _____ the rules.

A. depend on　 B. believe in　　 　　 C. turn to　 　　　　　　　 D. stick to

6.　　　 ---The newly-built school ______ very beautiful.

　 --- You’re right.

　 A. shows　　　 　 B. makes　　 　　　　　　 C. works　　　 　　　　 D. proves

5.　　　 It worried her a bit _____ her hair was turning grey.

A. while　　 　　　　　　　 B. that　　 　　　　　　　　 C. if　　 　　　　　　　　　 D. for

4.　　　 _______ surprises me most is that she doesn’t even know _____the difference between the two lies.

A. What; where　 B. What; what　 　　 C. That; where　 　　 D. That; what

3.　　　 _____ a computer works is a question _____ not everyone can answer quickly.

A. How; that　　 　　　 B. That; which　 　　 C. What; which　 　　 D. When; that

2.　　　 It is sleeping late in the morning that _____ being late for work.

A. devotes to　 B. sticks to　 　　　　　 C. refers to　　 　　　　 D. leads to

1.　　　 ---There is a knock at the door.

--- _________?

A. Who is that　　　　　 B. Who can it be

C. Who is he　　　　　　 D. Do you think who he is

30.　 --- Is _______ finished?

--- Not yet. My dirty clothes are still soaking in the washing-machine.

A. something　 B. anything　 C. nothing　 D. everything

　(1)

　There are lots of great places in the town which you can eat without 　　　　　　　 　　　 1. ______

　spending too much because of I'm always short of money! There are also some 　　 2. ______

　place where it costs a lot, so don't forget to read the menu before going in. 　　　　　 3. ______

　The first place is Gino's. It's an Italian restaurant where serving the usual things 　　 4. ______

　like pizzas and spaghetti. It's really cheaply and very friendly. Then there's 　　　　　 5. ______

　Black's Bistro. This is a café which is opened all day and you can eat anything 　　 6. ______

　there from toast, sandwiches, salads, burgers and full meals. Again it's not 　　　　　　 7. ______

　expensive and is very popular with young people. And finally, how about 　　　　　　 8. ______

　peppers? Go there if you want some really nourishing Mexican food. Mexica 9. ______

　food can be bit hot, but you can choose dishes which are milder too. 　　　　　　　　　　 　　　 10. ______

(2)

　It is one thing to land science instruments on Mars; however, it is quite 　　　　　 　　　 1. ______

　another to establish a base for humans to explore planet. Daytime temperatures 　　 2. ______

　can be rise above freezing, but, because of the extremely thin atmosphere, 　　　　　　 3. ______

　the sun heat radiates back into space. Even at the equator, the temperature 　　　　　　 4. ______

　drops -50℃ at night. In fact, there is no ozone(臭氧) layer to keep out 　　　　　　　　 5. ______

　ultraviolet(紫外线的)radiation, and hardly some oxygen for either breathing 　　　 6. ______

　and burning conventional fuels. But despite all these problems, scientists are 　　　 7. ______

　currently working transport and clothing for Mars and an artificial environment 　　 8. ______

　in which colonists could live. However, the potential cost make the idea of 　　　　　 9. ______

　human life on Mars nothing other than a fantastic dream. 　　　　　　　　　　　　　　　　 　　　 10. ______

练习四

29.　 The dark clouds are gathering as if it _____ rain.

A. will　　 　　　　　 B. is going to　 　 C. would　 　　　　　　　 D. were going to

28.　 In those days, the old woman _____ sit at the gate for hours, waiting for her son to return from the front.

A. could　 　　　　 B. should　 　　　 C. might　　 　　　 D. would