(4)作賓語補(bǔ)足語：

　　在復(fù)合賓語中,動詞不定式可充當(dāng)賓語補(bǔ)足語,如下動詞常跟這種復(fù)合賓語：want, wish, ask, tell, order, beg, permit, help, advise, persuade, allow, prepare, cause, force, call on, wait for, invite.

　　(5)作定語：

　　動詞不定式作定語,放在所修飾的名詞或代詞后.與所修飾名詞有如下關(guān)系：

　?、賱淤e關(guān)系：

　　I have a meeting to attend.

　　注意：不定式為不及物動詞時(shí),所修飾的名詞如果是地點(diǎn)、工具等,應(yīng)有必要的介詞,如：

　　He found a good house to live in.

　　The child has nothing to worry about.

　　What did you open it with?

　　如果不定式修飾time, place, way,可以省略介詞：

　　He has no place to live.

　　This is the best way to work out this problem.

　　如果不定式所修飾名詞是不定式動作承受者,不定式可用主動式也可用被動式：

　　Have you got anything to send?

　　Have you got anything to be sent?

　?、谡f明所修飾名詞的內(nèi)容：

　　We have made a plan to finish the work.

　?、郾恍揎椕~是不定式邏輯主語：

　　He is the first to get here.

　　(6)作狀語：

　?、俦砟康模?/strong>

　　He worked day and night to get the money.

　　She sold her hair to buy the watch chain.

　　注意不定式放句首時(shí),邏輯主語與句子主語要一致：

　　wrong：To save money, every means has been tried.

　　right：To save money, he has tried every means.

　　wrong：To learn English well, a dictionary is needed.

　　right：To learn English well, he needs a dictionary.

　　②表結(jié)果：

　　He arrived late to find the train gone.

　　常用only放在不定式前表示強(qiáng)調(diào)：

　　I visited him only to find him out.

　?、郾碓颍?/strong>

　　They were very sad to hear the news.

　?、鼙沓潭龋?/strong>

　　It's too dark for us to see anything.

　　The question is simple for him to answer.

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