题目内容
---Thank God you’re safe!
--- I stepped back, just _______ to avoid the racing car.
| A．in time | B．in case | C．in need | D．in vain |
A
解析试题分析:考查介词短语。A 及时；B 以免；C 需要；D 徒劳。从语境可知说话人避开了汽车，而in time to do 意思为“及时做某事”，所以A选项正确。句意：--谢天谢地，你很安全。--我朝后退了，才及时避开了飞速驶来的汽车。
考点：考查介词短语。
He is so kind a person that he takes a friendly attitude_____us.
| A．of | B．about | C．to | D．on |
Scientists are convinced ________ the positive effect of laughter ________ physical and mental health.
| A．of; at | B．on; at | C．by; in | D．of; on |
He thought the jar made ______ earth ______ little value and let me have it ______ only 5 dollars.
| A．of; of; for | B．from; of; by | C．from; with; for | D．of; of; by |
I think you should complain—_________ , of course, you are happy with the way things are.
| A．if | B．until | C．unless | D．once |
With new technology, pictures of underwater valleys can be taken ____ color.
| A．by | B．for | C．with | D．in |
The problem should be dealt with by the government ________ ordinary people.
| A．other than | B．rather than | C．more than | D．less than |
— Let’s have an outing tomorrow.
— Sorry. The final exam is drawing near and I am in a race _____ time.
| A．over | B．in | C．against | D．on |
Don’t be afraid of asking for help _______ it is needed.
| A．unless | B．though |
| C．although | D．when |