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  動(dòng)詞不定式是初中英語(yǔ)的語(yǔ)法重點(diǎn)之一,也是每年中考英語(yǔ)試題的考點(diǎn)之一。它是動(dòng)詞的一種非謂語(yǔ)形式,沒有人稱和數(shù)的變化,不能單獨(dú)作句子的謂語(yǔ)。其構(gòu)成形式為“to+動(dòng)詞原形”,to為動(dòng)詞不定式的符號(hào),本身無(wú)意義。動(dòng)詞不定式具有兩大特點(diǎn):

  1.具有動(dòng)詞的特點(diǎn),因此,后面可以跟表語(yǔ)、賓語(yǔ)或狀語(yǔ),構(gòu)成動(dòng)詞不定式短語(yǔ)。

  2.具有名詞、形容詞或副詞的特點(diǎn),可以在句子中用作主語(yǔ)、賓語(yǔ)、賓語(yǔ)補(bǔ)足語(yǔ)、狀語(yǔ)、定語(yǔ)、表語(yǔ)及同位語(yǔ)等。下面以近幾年全國(guó)部分省市的中考英語(yǔ)試題為例,對(duì)不定式的難點(diǎn)以及它在中考英語(yǔ)中的考查點(diǎn),作以簡(jiǎn)要的總結(jié)和分析,供同學(xué)們學(xué)習(xí)時(shí)參考。

  1 動(dòng)詞不定式作主語(yǔ)

  1. It‘s our duty _________ the room every day.

  A. to clean B. cleaned C. clean D. cleans(甘肅省)

  2. It‘s hard for us _________ English well.

  A. learn B. learns C. to learn D. learning(江西省)

  3.建造這座立交橋?qū)⒒ㄙM(fèi)工人們一年多的時(shí)間。

  It will _________ the workers over a year _________ _________ the flyover.(北京市海淀區(qū))

  4. It‘s very nice _________ you to get me two tickets _________ the World Cup.

  A. for,of B. of, for C. to, for D. of, to(安徽省)

  Keys:1. A 2. C 3. take, to,build 4. B

  [簡(jiǎn)析]動(dòng)詞不定式作主語(yǔ)時(shí),可以直接放在謂語(yǔ)動(dòng)詞前面的主語(yǔ)位置,也可以用先行詞it作形式主語(yǔ),而將真正的主語(yǔ)(不定式)置于后面。常見的句式有:(1)It is +形容詞(of sb)to do sth.(2)It is +名詞 (for sb)to do sth.(3)It takes sb some time to do sth.(4)It is +形容詞 (for sb)to do sth.句式 (1)中常用nice,kind, clever,good, right,wrong, foolish, careless等形容詞,與介詞of搭配,這些形容詞常表述不定式邏輯主語(yǔ)的屬性或性質(zhì);句式(4)中常用hard,difficult, easy, important等形容詞,與介詞for搭配,表述不定式表示的動(dòng)作、行為的性質(zhì)。

  2 動(dòng)詞不定式作賓語(yǔ)

  1. He wants ______ some vegetables.

  A. buy B. buying C. to buy D. buys (山西省)

  2. Don‘t forget ______ your homework with you when you come to school.

  A. to bring B. bringing C. to take D. taking (福建省)

  3. He found it very difficult ______.

  A. sleeping B. sleepsC. slept D. to fall asleep (湖南省)

  Keys:1. C 2. A 3. D

  [簡(jiǎn)析]在want, like, agree,hope,wish, learn, begin, start, seem, decide, hate, choose, forget, remember等動(dòng)詞后面,可以接不定式作賓語(yǔ)。如果其后接形容詞補(bǔ)足語(yǔ)時(shí),則可以用it作形式賓語(yǔ),而把作真正賓語(yǔ)的不定式放到后面。

  3 動(dòng)詞不定式作賓語(yǔ)補(bǔ)足語(yǔ)

  1. Robert often asks us ______ his Chinese, so his Chinese is much better than before.

  A. help him B. to help him with C. to help with D. helps him with (江蘇省)

  2. Mr Li often teaches his Japanese friends ______ Chinese food.

  A. cook B. cooks C. to cook D. cooked (甘肅省)Key:1. B 2. C

  [簡(jiǎn)析]不定式可以用作賓語(yǔ)補(bǔ)足語(yǔ)。后面可以接不定式作賓語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞有 :ask, teach, expect,tell, allow等。

  4 動(dòng)詞不定式作狀語(yǔ)

  1. She went ______ her teacher.

  A. to see B. looks C. saw D. seeing (江西省)

  2. Meimei likes English very much. She does her best ______ English well.A. learn B. learning C. to learn D. learns (四川省)Key:1. A 2. C

  [簡(jiǎn)析]go, come, try,do / try one‘s best等動(dòng)詞或短語(yǔ)動(dòng)詞作謂語(yǔ)時(shí),其后常?梢越硬欢ㄊ阶髂康臓钫Z(yǔ)。

  3. I‘m sorry ______ that. A. hears B. hearing C. hear D. to hear (河北省)

  4. I‘m sorry ______ you.A. trouble B. to trouble C. troubling D. troubled (吉林省)

  Keys:3. D 4. B

  [簡(jiǎn)析]“be +形容詞+ to do sth”結(jié)構(gòu)中的不定式作狀語(yǔ),常表示原因或方式。

  5. The panda is so fat that it can‘t go through the hole.(改為意思相同的句子)The hole ______ ______ ______ ______ such a fat panda to go through. (廣東省)

  6. The ice on the lake was so thin that people couldn‘t skate on it. (改為意思相同的句子)The ice on the lake wasn‘t ______ enough ______ people ______ ______ ______. (廣東省)

  Keys: 5. is, too,small, for 6. thick, for,to, skate,on

  [簡(jiǎn)析]在上述“too +形容詞/副詞 (for sb)to do…”(太……而不能……)和“enough (for sb) to do…”(足以、足夠……做……)結(jié)構(gòu)中,不定式作結(jié)果狀語(yǔ)。

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