十三、~~~ enable + Object(受词)+ to + V (..使..能够..)

例句:Listening to music enable us to feel relaxed.

听音乐使我们能够感觉轻松。

十四、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。

十五、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。