目前大家應(yīng)該是對(duì)decide的用法（動(dòng)詞不定式用法解密）比較感興趣的，所以今天好房網(wǎng)小編CC就來為大家整理了一些關(guān)于decide的用法（動(dòng)詞不定式用法解密）方面的相關(guān)知識(shí)來分享給大家，希望大家會(huì)喜歡哦。

decide的用法（動(dòng)詞不定式用法解密）

動(dòng)詞不定式的基本形式是“to+動(dòng)詞原形“,有時(shí)可以不帶to.動(dòng)詞不定式?jīng)]有人稱和數(shù)的變化,在句子中不能作謂語。在句中可以作主語、表語、賓語、賓語補(bǔ)足語、定語和狀語。

一、作主語，可以用it代替，it叫形式主語，動(dòng)詞不定式放在后面叫真正主語

1．To learn a foreign language is not easy. It is not easy to learn a foreign language.

It’s dangerous to drive very fast.

二、如果賓語太長(zhǎng)，可用it作形式賓語，構(gòu)成“主語+謂語+ it +賓語不足語(名詞或形容詞) + to do sth”結(jié)構(gòu)，謂語動(dòng)詞常為find、think、feel等。

I found it difficult to stop him.我發(fā)現(xiàn)攔截他很困難。

三、?？山觿?dòng)詞不定式作賓語的動(dòng)詞有：

agree(同意), hope(希望), decide(決定), need(需要), mean(打算), wish(希望), fail(失敗), want(想要), begin(開始), would like(想要等。Ask(請(qǐng)求）, beg（乞求), leave, like, love, hate(討厭）, prefer（寧愿）, order（命令）, teach,（教）tell,（告訴）believe（相信）, find,（找出）know,（知道）want,（想要）think,（認(rèn)為）understand,（明白）

后面跟動(dòng)詞不定式的動(dòng)詞口訣有：

三個(gè)希望兩答應(yīng)（wish hope wantpromis agree)

兩個(gè)要求莫拒絕（ask begrefuse )

想要明白跟知道（would likeunderstandknow )

教會(huì)告訴要相信（teach tell believe )

找出愛恨區(qū)別點(diǎn)（find love hate )

He has decided to go to the countryside.他已決心去鄉(xiāng)下。

四、（1）“疑問詞+動(dòng)詞不定式”結(jié)構(gòu)可以作動(dòng)詞know、think、find out等的賓語。I don’t know who to ask.我真不知道該問誰。

（2）“疑問詞+動(dòng)詞不定式”可以作動(dòng)詞show、teach、ask等后面的直接賓語。

She told me where to find the earphone.她告訴我什么地方可以找到耳機(jī)。

五、動(dòng)詞不定式可以作介詞的賓語。

Autumn harvest isaboutto start.秋收即將開始。

I’m worryingaboutwhat to do next.我正愁下一步該怎么辦。

六、作定語的動(dòng)詞不定式與被修飾詞有動(dòng)賓關(guān)系。此時(shí)，如果動(dòng)詞不定式的動(dòng)詞為不及物動(dòng)詞，后面的介詞絕對(duì)不能省略。

動(dòng)詞分“及物”和“不及物”，“及”你就理解成“涉及，有聯(lián)”，“物”你就理解成“事物或人”。及物的動(dòng)詞”就是“涉及事物的動(dòng)詞”即“有受對(duì)象的動(dòng)詞”或“帶賓語的動(dòng)詞”（像買buy,花費(fèi)spend），“不及物的動(dòng)詞”就是“不帶賓語的動(dòng)詞”“沒有動(dòng)作承受對(duì)象的動(dòng)詞”（像跑run，跳jump,）。所以介詞不能夠省略。

I have a lot of books to read.我有許多書要讀。

We had only a cold room to livein.我們只有寒室一間。

七、不定式復(fù)合結(jié)構(gòu)作主語時(shí)，需注意：

（1）It’s +形容詞+ for / of + sb + to do sth.

當(dāng)上面的形容詞指的是to do sth的性質(zhì)時(shí)，用介詞for。

It’s dangerous for children to swim in the river.孩子在這條河里游泳很危險(xiǎn)。（游泳這件事情危險(xiǎn)）

（2）當(dāng)上面的形容詞指的是sb的性質(zhì)時(shí)，用介詞of。

這些形容詞往往修飾人：good, bad, polite, unkind, kind, nice, clever, right, wrong, careful, careless

It was careless of you to do that.你這么做真粗心。（你這個(gè)人粗心）

八、感官動(dòng)詞hear, see, feel, watch, notice, look at, listen to后面直接跟動(dòng)詞原形,即常見的形式為: hear sb do sth等

感官動(dòng)詞后既可跟動(dòng)詞原形作賓補(bǔ)，也可跟v-ing作賓補(bǔ)，前者表示動(dòng)作的全部過程已結(jié)束；后者表示動(dòng)作正在進(jìn)行。

Many people like towatchothersplay games.許多人喜歡看別人玩游戲.

Isawhimcomedownstairs.我看見他下了樓。（說明他下樓了這件事）

Isawhimcomingdownstairs.我看見他在下樓。（說明他下樓時(shí)的情景）

九、使役動(dòng)詞let, make, have后面直接跟動(dòng)詞原形; help后面的動(dòng)詞不定式作賓語補(bǔ)足語, to可有可無

She let us meet her at the station, but she didn’t come.她讓我們?nèi)ボ囌居铀?卡她沒有來.

十、區(qū)別下列詞組的不同含義:

remember to do 記住要做某事

remember doing 記得曾經(jīng)做過某事

forget to do忘記要做某事

forget doing 忘記曾經(jīng)做過某事

stop to do 停下來去做某事

stop doing 停止做某事

go on to do 繼續(xù)做另一件事

go on doing 繼續(xù)做原來在做的事

十一、It takes sb some time to do sth.花費(fèi)某人一段時(shí)間干某事.

It took me half an hour to do my homework yesterday.昨天我花了半小時(shí)做回家作業(yè).

It took Jim an hour and a half to read the book.吉姆花了一個(gè)半小時(shí)看這本書.

It took mother one and a half hours to do the housework.母親花了一個(gè)半小時(shí)干家務(wù).

用漢字表述上面的句型為:It + take +人+一段時(shí)間+ to do sth.

一段時(shí)間形式往往為像這樣的例子:

fifteen minutes15分鐘,an hour一個(gè)小時(shí), two days兩天, half a month半個(gè)月,a year and a half一年半...等等

十二、不定式的特殊句型Why not

"Why not +動(dòng)詞原形"表達(dá)向某人提出建議，翻譯為："為什么不……?" "干嗎不……?"

例如：　Why not take a holiday?干嗎不去度假?

練習(xí)

根據(jù)括號(hào)內(nèi)的動(dòng)詞,用適當(dāng)?shù)男问教羁?空內(nèi)可能不只填一個(gè)詞,使句子完整意思正確

They usually __________ kites on Sundays. (fly)

Look! The dogs __________ after the cat. (run)

Miss Gao __________ English in our school since she came here. (teach)

The class meeting _________ last Wednesday afternoon. (hold)

You should let him __________ the work by himself. (finish)

Meimei __________ to wash the old woman’s clothes twice every week. (go)

Mr Jiang __________ us Chinese last term. (teach)

My father __________ back from Japan tomorrow. (come)

It’s seven o’clock now. The Greens __________ breakfast together. (have)

Jim __________ many Chinese songs since he came to China. (learn)

1 Please remember __________ the window when you leave the room. (close)

1 After school some students began to do some __________ in the classroom. (clean)

1 English __________ widely in the whole world today. (speak)

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