1.A car engine cannot run smoothly without motor oil. ______ our body cannot function efficiently without vitamins.
A. Fortunately B. Gradually C. Similarly D. Confidently
2.As a poet, he was _____ his time. His poems, now regarded as classics, were unpopular when he wrote them.
A. close to B. ahead of C. because of D. as for
3.It was foolish of the student to _______ his notes during the important test, and as a result, he got punished.
A. refer to B. settle down C. account for D. bring out
【考点定位】动词词组
【解析】句意：在如此重要的考试中参看笔记本是件愚蠢的事情，结果他受到了惩罚。
refer to提及；参考；指，settle down解决；account for解释……原因；bring out出版，取出。
【答案】A
4.He seems to be doing nothing, but _____ he is just waiting for his chance.
A. certainly B. gradually C. frequently D. actually
【考点定位】副词
