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含不定词句型 do all one can to 结构︰主词+do all one can to-不定词 说明︰此句型意为尽一切可能来。注意 do 和 can 的时态要保持一致。 Daddy did all he could to fill my needs and desires.爸爸尽一切可能来满足我的需求和欲望。 You should do all you can to persuade him. 你应该尽一切可能来说服他。 We have done all we could to catch up with them. 我们已经尽了一切可能来赶上他们。 have sth. to do with 结构︰ have something/nothing to do with 说明︰此句型意为与有/无关系。这是包含不定式的习惯用法。随着有关系的程度， something 可改为 little，much，a great deal 等。have nothing to do with表示否定;have anything to do with 用于疑问句中。 Her diligence must have something to do with his success. 她的勤勉和她的成功一定有某些关系。 The traffic accident had nothing to do with him. 这交通事故和他一点关系也没有。 His wife had much to do with his bankruptcy. 他的破产和他的妻子很有关系。 have no other N except to 结构︰主词+have no other+名词+except/than+to-不定词 说明︰此句型意为除了要没有其它的。except 可以换成 than. | 
