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考点三:非谓语动词作主语动词不定式和动名词都可以作主语,但有区别:动词不定式作主语,一股表示具体的、一次性的或将来的动作;动名词作主语,一般表示抽象的、习惯性的动作。有些固定句型只用动名词作主语,如:it is/was no use/good doing sth.it is/was of little use/good doing sth.It is/was worth doing sth.实战演练1.It was a great achievement to complete that building in ten months.
Test site three: the non-predicate verb as the subject Infinitives and nouns can be used as the subject, but there is a difference: the infinitive verb as the subject, a unit that specific, one-time or future action; nouns as the subject, the general said Abstract, habitual action. Some fixed sentences use nouns as the subject, such as: it is / was no use / good doing sth.it is / was of little use / good doing sth.It is / was worth doing sth. a great achievement to complete that building in ten months.