初中英語動詞不定式用法全面解析
動詞不定式是初中英語的語法重點之一,也是每年中考英語試題的考點之一。下面是小編整理的初中英語動詞不定式用法全面解析,希望大家喜歡。
初中英語動詞不定式用法全面解析
它是動詞的一種非謂語形式,沒有人稱和數(shù)的變化,不能單獨作句子的謂語。其構(gòu)成形式為“to+動詞原形”,to為動詞不定式的符號,本身無意義。動詞不定式具有兩大特點:
1.具有動詞的特點,因此,后面可以跟表語、賓語或狀語,構(gòu)成動詞不定式短語。
2.具有名詞、形容詞或副詞的特點,可以在句子中用作主語、賓語、賓語補足語、狀語、定語、表語及同位語等。下面以近幾年全國部分省市的中考英語試題為例,對不定式的難點以及它在中考英語中的考查點,作以簡要的總結(jié)和分析,供同學們學習時參考。
1
動詞不定式作主語
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?。?/p>
3.建造這座立交橋?qū)⒒ㄙM工人們一年多的時間。
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?。?/p>
Keys:1. A 2. C 3. take, to,build 4. B
[簡析]動詞不定式作主語時,可以直接放在謂語動詞前面的主語位置,也可以用先行詞it作形式主語,而將真正的主語(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作、行為的性質(zhì)。
2
動詞不定式作賓語
1. He wants ______ some vegetables.
A. buy B. buying C. to buy D. buys (山西?。?/p>
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?。?/p>
3. He found it very difficult ______.
A. sleeping B. sleepsC. slept D. to fall asleep (湖南?。?/p>
Keys:1. C 2. A 3. D
[簡析]在want, like, agree,hope,wish, learn, begin, start, seem, decide, hate, choose, forget, remember等動詞后面,可以接不定式作賓語。如果其后接形容詞補足語時,則可以用it作形式賓語,而把作真正賓語的不定式放到后面。
3
動詞不定式作賓語補足語
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?。㎏ey:1. B 2. C
[簡析]不定式可以用作賓語補足語。后面可以接不定式作賓語補足語的動詞有 :ask, teach, expect,tell, allow等。
4
動詞不定式作狀語
1. She went ______ her teacher.
A. to see B. looks C. saw D. seeing (江西?。?/p>
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
[簡析]go, come, try,do / try one's best等動詞或短語動詞作謂語時,其后常常可以接不定式作目的狀語。
3. I'm sorry ______ that. A. hears B. hearing C. hear D. to hear (河北?。?/p>
4. I'm sorry ______ you.A. trouble B. to trouble C. troubling D. troubled (吉林省)
Keys:3. D 4. B
[簡析]“be +形容詞+ to do sth”結(jié)構(gòu)中的不定式作狀語,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?。?/p>
Keys: 5. is, too,small, for 6. thick, for,to, skate,on
[簡析]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。B13a.
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