【模拟演练】

　　1．-Do you often go fishing at weekends?

　　-Not often，I only go fishing________.

　　A．at one time      B．all the time

　　C．at a time       D．from time to time

　　答案　D

　　解析　考查介词短语。at one time曾经；all the time始终；at a time每次；from time to time有时。由句意可知D项正确。

　　2．He was a good student and scored ________ average in most subjects.

　　A．below       B．of

　　C．on        D．above

　　答案　D

　　解析　句意为：他是一个好学生，大多数科目得分高于平均水平。above average高于平均数；below average低于平均数；on average平均起来，一般说来。

　　3．The traveler didn't know________which direction to go.

　　A．in        B．at

　　C．to        D．/

　　答案　A

　　解析　表示"朝……方向去"，用介词in而不用to。

　　4．I am________your suggestion that we should spend more time on this project.

　　A．in memory of     B．in honour of

　　C．in favour of      D．in need of

　　答案　C

　　解析　句意为：我很赞成你的建议，那就是我们应该在这个工程上花费更多的时间。in favour of赞成。