初中英語(yǔ)――動(dòng)詞不定式-資料下載頁(yè)
2025-06-07 16:24本頁(yè)面
【正文】 you can buy the one you really need.() 2)Using English helps you write quickly. () said, be sure, happen, seem等后面可以接帶to的動(dòng)詞不定式作主語(yǔ)的補(bǔ)語(yǔ)。如： 1)He doesn’t seem to have many friends.() 2)Be sure not to miss them if they e to a city near you.() 六、用作狀語(yǔ) ，置于句首或句末，置于句首時(shí)常表示強(qiáng)調(diào)。如： 1)In order not to offend people, learning about language etiquette is just as important as learning grammar or vocabulary.() 2)A group of young people got together to(in order to / so as to) discuss this question. () to do / in order to do / so as to do用作目的狀語(yǔ)，置句末時(shí)都可以用，置句首時(shí)只用to do / in order to do。so as to do一般不置于句首，可以引導(dǎo)結(jié)果狀語(yǔ)從句，in order to do不引導(dǎo)結(jié)果狀語(yǔ)從句?！ ?，多見(jiàn)于“sb.+be+adj.+to do...”結(jié)構(gòu)句中。如： 1)My dogs name is “Lucky”—a good name for him because I feel very lucky to have him.() 2)On Monday he told a radio interviewer that he had run out of money to buy old bikes. () ，多見(jiàn)于“too...to”，“enough to...”結(jié)構(gòu)句中。如： 1)Then I’m too tired to do well. What should I do?() 2)The room needs to be big enough for three people to live in.() ，常說(shuō)明前面形容詞的性質(zhì)和特性。動(dòng)詞不定式與句子的主語(yǔ)有邏輯的動(dòng)賓關(guān)系。動(dòng)詞不定式前面的形容詞一般是：cheap, dangerous, difficult, easy, fun, hard, interesting, necessary。不定式常用主動(dòng)式表被動(dòng)意義?！ ?.. the mistakes you made are necessary for you to learn and understand.() 這類(lèi)句子中的動(dòng)詞不定式可改為主語(yǔ)?！ ?，表示說(shuō)話(huà)人的心理狀態(tài)或?qū)κ虑榈目捶?。如： ?)Id like to stay healthy, but to be honest, I only eat food that tastes good.() 2)To begin with, she spoke too quickly, and I couldn’t understand every word. () 七、動(dòng)詞不定式的復(fù)合結(jié)構(gòu) 動(dòng)詞不定式的復(fù)合結(jié)構(gòu)是“for / of sb. to do sth.”，for / of引出不定式動(dòng)作的邏輯主語(yǔ)。這種結(jié)構(gòu)在句子中可以作主語(yǔ)、賓語(yǔ)、表語(yǔ)、定語(yǔ)、狀語(yǔ)等。不定式復(fù)合結(jié)構(gòu)的介詞用for還是of，主要決定于前面形容詞的性質(zhì)。一般說(shuō)來(lái)，of前面的形容詞是careful, clever, foolish, good, kind, nice, wise等，既說(shuō)明人的特性，又說(shuō)明不定式動(dòng)作的特性。for前面的形容詞是dangerous, difficult, easy, hard, heavy, important, interesting, necessary等，一般說(shuō)明不定式動(dòng)作的特性，不說(shuō)明人的特性。前面如果是名詞用for。如： also probably a good idea for parents to allow teenagers to study in groups during the evening. () are terrible places for animals to live.()八、帶疑問(wèn)詞的不定式短語(yǔ) 動(dòng)詞不定式前面可以帶疑問(wèn)代詞what, which, who或疑問(wèn)副詞how, when, where, why等。這種結(jié)構(gòu)起名詞的作用，在句子里用作賓語(yǔ)、主語(yǔ)、表語(yǔ)等，或者單獨(dú)使用。要注意的是，why后面的不定式不帶to。如： ?！ ?)I don’t know what to try next. ()(作賓語(yǔ)) 2)Where to go is not decided yet.(作主語(yǔ)) ?！ ?)What to do next?(=What will we / you do next?) 2)Why go there?(=Why do we / you go there?) 九、動(dòng)詞不定式的否定式 不定式的否定式是not / never to do...，不帶to的不定式的否定式是not / never do...如： they have disagreements, and decide not to talk to each other.() parents tell him never to drive after drinking.
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