1、So + 形容词 + be + 主词 + that + 句子(如此...以致于...)

例句：So precious is time that we can’t afford to waste it.

2、Adj + as + Subject(主词)+ be, S + V (虽然...)

例句：Rich as our country is, the qualities of our living are by no means satisfactory. {by no means = in no way = on no account 一点也不}

3、On no account can we +V (我们绝对不能...)

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

4、It is time+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.

5、There is no one but(没有人不...)

例句：There is no one but longs to go to college.

6、be + forced/compelled/obliged+to+V (不得不...)

例句：Since the examination is around the corner, I am compelled to give up doing sports.

7、It pays to+V(...是值得的。)

例句：It pays to help others.

8、Spare no effort to+V (不遗余力的)

例句：We should spare no effort to beautify our environment.

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