動詞不定式用法-預覽頁
【正文】 在進行。(3) 動詞help之后，帶to或不帶to都可以。不定式作定語時，它的位置在它所修飾的名詞或代詞之后。（當名詞前有the first ,the last, the only 等以及最高級時：eg: She is always the first to e and the last to leave.)eg: He spoke loudly (only to / in order to/so as to) be heard.比較：He rushed to the station only to find the train gone .(結果狀語)注意：(1) 如果修飾不定代詞的還有形容詞時，它們的位置應該是：不定代詞+形容詞+不定式。(2) 如果不定式是不及物動詞，或者不定式修飾的名詞或代詞是不定式動詞的地點、工具等，不定式之后要加一個介詞。（三）不定式作副詞的用法不定式可起副詞的作用，在句中表目的、結果、原因等。The question is quite difficult to answer. 這個問題很難回答。注意：不定式否定句不同于否定句形式。2. 不定式的復合結構：for+名詞（代詞）+不定式It is very difficult for me to do this job. 對我來說做這件工作很困難。It’s kind of you to think so much of us. 難為你這樣替我們想。He didn’t know what to do. =He didn’t know what he should do.他不知道要做什么。This pair of trousers is too dirty for him to wear. 這條褲子太臟了，他不會穿他的。The box is very heavy. She couldn’t carry it.→The box is too heavy for her to carry. 這個箱子太重了，她搬不動。He is old enough to join the army. 他到參軍的年齡了?！鶷his question was not easy enough for everybody in our class to answer.這個問題不太容易，我們班的所有人都回答不上來。3. help后接動詞不定式作賓補時的to可省也可不省。與另外文檔矛盾，需證實(1) —Will you join me in a walk? 你愿意和我一塊兒去散步嗎？—I’ll be glad to. 我愿意。我盡力了，但沒找到。（三）不定式的完成式1）發(fā)生在謂語動詞的動作或狀態(tài)前，常接不定式完成式的動詞有 appear to have done seem to have done happen to(碰巧 have done be said to have done, be reported to have done be believed to have done be known to have done be thought to have done be sorry to have done be likely(可能） to have done等. 還可+to have been done/to have been doing(表一直持續(xù)到..,，可能還要繼續(xù)下去）如They seemed to have known each other for a long time. She is said to have learned four foreign languages. （2）特殊的幾個動詞+to have done表示過去沒有實現(xiàn)的期待或計劃 hope to have done（表遺憾，實際沒做成”希望做過什么事，而實際沒有）） promise to have done（承諾去做什么，而實際沒有） want to have done wish to have done expect to have done plan to have done should/would like to have done （表未能實現(xiàn)的愿望） 如，He wanted to have met you at the airport, but he didn’t get there in time. 沒接成。 （復習，以上是可以接to do的，意思與+to have done不一樣）總之：（1）不定式一般表將來的目的或
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