例句：Listening to music enable us to feel relaxed. 　　听音乐使我们能够感觉轻松。

十四、It is time + S +过去式(该是……的时候了)

例句：It is time the authorities concerned took proper steps to solve the

traffic problems.

该是有关当局采取适当的措施来解决交通问题的时候了。

十五、On no account can we + V ~~~(我们绝对不能……)

例句：On no account can we ignore the value of knowledge.

我们绝对不能忽略知识的价值。

十六、Those who ~~~(……的人……)

例句：Those who violate traffic regulations should be punished.违反交通规定的人应该受处罚。

十七、There is no one but ~~~(没有人不……)

例句：There is no one but longs to go to college. 　　没有人不渴望上大学。

十八、It is conceivable that +句子(可想而知的)

It is obvious that +句子(明显的)

It is apparent that +句子(显然的)

例句：It is conceivable that knowledge plays an important role in our life.

可想而知，知识在我们的一生中扮演一个重要的角色。

十九、be + forced/compelled/obliged + to + V(不得不……)