2012年04月17日 02時(shí)04分，《英語(yǔ):2012小升初英語(yǔ)語(yǔ)法知識(shí)要點(diǎn)：動(dòng)詞不定式(一)》由出國(guó)留學(xué)網(wǎng)liuxue86.com英語(yǔ)編輯整理.
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動(dòng)詞+ 不定式
afford, aim, appear, agree, arrange, ask, be, decide, bother, care, choose, come, dare, demand, desire, determine, expect, elect, endeavor, hope, fail, happen, help, hesitate, learn, long, mean, manage, offer, ought, plan, prepare, pretend, promise, refuse, seem, tend, wait, wish, undertake
The driver failed to see the other car in time.司機(jī)沒能及時(shí)看見另一輛車。
I happen to know the answer to your question.我碰巧知道你那道問題的答案。
2) 動(dòng)詞+不定式；動(dòng)詞+賓語(yǔ)+不定式
ask, beg, choose, expect, hate, help intend like, love, need prefer, prepare, promise, want, wish
I like to keep everything tidy.我喜歡每件東西都保持整潔。
I like you to keep everything tidy.我喜歡你使每件東西都保持整潔。
I want to speak to Tom. 我想和湯姆談話。
I want you to speak to Tom. 我想讓你和湯姆談話。
3) 動(dòng)詞+疑問詞+ to
decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell
Please show us how to do that. 請(qǐng)演示給我們?nèi)绾稳プ觥?BR> There are so many kinds of tape-recorders on sale that I can't make up my mind which to buy。有這么多的錄音機(jī)，我都拿不定主意買哪一種。
注意
疑問詞帶不定式在句中作成分時(shí)，謂語(yǔ)動(dòng)詞用單數(shù)。如：The question is how to put it into practice. 問題是怎樣把它付諸實(shí)施。
2. 不定式作補(bǔ)語(yǔ)
1) 動(dòng)詞+賓語(yǔ)+不定式(to do)
advise, allow, appoint, believe, cause, challenge, command, compel, consider, declare, drive, enable, encourage, find, forbid, force, guess, hire, imagine, impel, induce, inform, instruct, invite, judge, know, like, order, permit, persuade, remind, report, request, require, select, send, state, suppose, tell, think, train, trust, understand, urge, warn
a. Father will not allow us to play on the street.父親不讓我們?cè)诮稚贤嫠！?BR> b. We believe him to be guilty. 我們相信他是有罪的。
Find 的特殊用法
Find 后可用分詞做賓補(bǔ)，或先加形式賓語(yǔ)，再加形容詞，最后加帶to 的動(dòng)詞不定式。find后也可帶一個(gè)從句。此類動(dòng)詞還有g(shù)et，have。
I found him lying on the ground。
I found it important to learn。
I found that to learn English is important。
The next morning she found the man ___ in bed，dead.
A. lying B. lie C. lay D. laying
答案：A. find的賓語(yǔ)后面，用分詞或分詞短語(yǔ)，起賓語(yǔ)補(bǔ)足語(yǔ)作用?，F(xiàn)在分詞表達(dá)主動(dòng)，也表達(dá)正在進(jìn)行，過去分詞表達(dá)被動(dòng)。
2) to + be 的不定式結(jié)構(gòu)，作補(bǔ)語(yǔ)的動(dòng)詞。
acknowledge, believe, consider, think, declare(聲稱)， discover, fancy(設(shè)想)， feel, find,guess, judge, imagine, know, prove, see(理解)， show, suppose, take(以為)， understand
We consider Tom to be one of the best students in our class. 我們認(rèn)為湯姆是班上最好的學(xué)生之一。
典型例題
Charles Babbage is generally considered___ the first computer.
A. to inventB. inventing C. to have invented D. having invented
答案：A. 由consider to do sth. 排除B、D。. 此句只說明發(fā)明這一個(gè)事實(shí)，不定式后用原形即可。而C為現(xiàn)在完成時(shí)，發(fā)明為點(diǎn)動(dòng)詞一般不用完成時(shí)，且此處也不強(qiáng)調(diào)對(duì)現(xiàn)在的影響，因此不選C。
3) to be +形容詞
seen, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean
The book is believed to be uninteresting.人們認(rèn)為這本書沒什么意思。
：
動(dòng)詞+ 不定式
afford, aim, appear, agree, arrange, ask, be, decide, bother, care, choose, come, dare, demand, desire, determine, expect, elect, endeavor, hope, fail, happen, help, hesitate, learn, long, mean, manage, offer, ought, plan, prepare, pretend, promise, refuse, seem, tend, wait, wish, undertake
The driver failed to see the other car in time.司機(jī)沒能及時(shí)看見另一輛車。
I happen to know the answer to your question.我碰巧知道你那道問題的答案。
2) 動(dòng)詞+不定式；動(dòng)詞+賓語(yǔ)+不定式
ask, beg, choose, expect, hate, help intend like, love, need prefer, prepare, promise, want, wish
I like to keep everything tidy.我喜歡每件東西都保持整潔。
I like you to keep everything tidy.我喜歡你使每件東西都保持整潔。
I want to speak to Tom. 我想和湯姆談話。
I want you to speak to Tom. 我想讓你和湯姆談話。
3) 動(dòng)詞+疑問詞+ to
decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell
Please show us how to do that. 請(qǐng)演示給我們?nèi)绾稳プ觥?BR> There are so many kinds of tape-recorders on sale that I can't make up my mind which to buy。有這么多的錄音機(jī)，我都拿不定主意買哪一種。
注意
疑問詞帶不定式在句中作成分時(shí)，謂語(yǔ)動(dòng)詞用單數(shù)。如：The question is how to put it into practice. 問題是怎樣把它付諸實(shí)施。
2. 不定式作補(bǔ)語(yǔ)
1) 動(dòng)詞+賓語(yǔ)+不定式(to do)
advise, allow, appoint, believe, cause, challenge, command, compel, consider, declare, drive, enable, encourage, find, forbid, force, guess, hire, imagine, impel, induce, inform, instruct, invite, judge, know, like, order, permit, persuade, remind, report, request, require, select, send, state, suppose, tell, think, train, trust, understand, urge, warn
a. Father will not allow us to play on the street.父親不讓我們?cè)诮稚贤嫠！?BR> b. We believe him to be guilty. 我們相信他是有罪的。
Find 的特殊用法
Find 后可用分詞做賓補(bǔ)，或先加形式賓語(yǔ)，再加形容詞，最后加帶to 的動(dòng)詞不定式。find后也可帶一個(gè)從句。此類動(dòng)詞還有g(shù)et，have。
I found him lying on the ground。
I found it important to learn。
I found that to learn English is important。
The next morning she found the man ___ in bed，dead.
A. lying B. lie C. lay D. laying
答案：A. find的賓語(yǔ)后面，用分詞或分詞短語(yǔ)，起賓語(yǔ)補(bǔ)足語(yǔ)作用?，F(xiàn)在分詞表達(dá)主動(dòng)，也表達(dá)正在進(jìn)行，過去分詞表達(dá)被動(dòng)。
2) to + be 的不定式結(jié)構(gòu)，作補(bǔ)語(yǔ)的動(dòng)詞。
acknowledge, believe, consider, think, declare(聲稱)， discover, fancy(設(shè)想)， feel, find,guess, judge, imagine, know, prove, see(理解)， show, suppose, take(以為)， understand
We consider Tom to be one of the best students in our class. 我們認(rèn)為湯姆是班上最好的學(xué)生之一。
典型例題
Charles Babbage is generally considered___ the first computer.
A. to inventB. inventing C. to have invented D. having invented
答案：A. 由consider to do sth. 排除B、D。. 此句只說明發(fā)明這一個(gè)事實(shí)，不定式后用原形即可。而C為現(xiàn)在完成時(shí)，發(fā)明為點(diǎn)動(dòng)詞一般不用完成時(shí)，且此處也不強(qiáng)調(diào)對(duì)現(xiàn)在的影響，因此不選C。
3) to be +形容詞
seen, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean
The book is believed to be uninteresting.人們認(rèn)為這本書沒什么意思。