??專升本英語考試中,不定時(shí)有哪些用法?考生怎么掌握不定時(shí)的用法?想知道答案的考生快跟著小編一起來看看吧。
??
一、不定式的作用??1、作主語
??不定式作主語時(shí),謂語用單數(shù)。往往用it 作形式主語,把不定式放在謂語后面。如:
??It took us two hours to finish the job.
??It is impossible for us to get there on time.
??注意:
??(1)其他系動(dòng)詞如look, appear等也可用于此句型。
??(2)當(dāng)不定式作主語的句子中又有一個(gè)不定式作表語時(shí),不能用It is …to…的句型。試比較:It is to negate my own idea to believe him.(錯(cuò))
??To believe him is to negate my own idea .(對(duì))
??3)It is+ adj.+ of / for sb. to do sth. 結(jié)構(gòu)中,當(dāng)不定式的邏輯主語和前面的形容詞可以構(gòu)成系表結(jié)構(gòu)時(shí),用of, 否則用 for.
??2、作賓語
??(1)動(dòng)詞+不定式。如:
??He managed to escape from the fire.
??I find it hard to get along with him.(it 作形式賓語)
??注:下列動(dòng)詞通常用不定式作賓語:want, try, hope, wish, need, forget, know, promise, refuse, help, decide, begin, start, learn, agree, choose, get等
??(2)動(dòng)詞+疑問詞+to , “特殊疑問句+不定式”相當(dāng)于名詞,作賓語。如:
??I don’t know what to do next/ how to do it next.
??注意:不定式短語作賓語時(shí),如果還帶有賓語補(bǔ)足語,往往把不定式短語放在賓語補(bǔ)足語之后,用it 作形式賓語。如:
??I find it necessary to learn a foreign language.
??3、作賓語補(bǔ)足語
??(1)動(dòng)詞+賓語+不定式(to do)。如:
??He warned me to be careful.
??What makes you think so?(不帶to的不定式)
??注:可以用動(dòng)詞不定式做賓補(bǔ)的動(dòng)詞有:ask, tell, order ,want ,get, would like, like, advise, invite, allow, help, wish, warn, expect, prefer, encourage
??(2)表見解、看法的動(dòng)詞結(jié)構(gòu)可為:動(dòng)詞+賓語+ to be 的不定式結(jié)構(gòu)。如:
??We consider Tom to be one of the best students in our class.
??The book is believed to be useful.(被動(dòng)語態(tài))
??(3) There +不定式。如:
??We didn’t expect there to be so many people there.我們沒料到會(huì)有那么多人在那里。
??注意:(1)有些動(dòng)詞需用 as 短語作補(bǔ)語,像regard, think, believe, take, consider。如:
??We regard Tom as our best teacher.
??Mary took him as her father.
??(2)在動(dòng)詞feel (一感),hear, listen to(二聽),have, let, make(三讓),notice, see, watch, observe, look at(五看)(即:吾看三室兩廳一感覺)等后面的補(bǔ)足語中,不定式不帶to,但變?yōu)楸粍?dòng)語態(tài)后,必須帶to。如:
??They saw the boy fall off the tree.
??The boy was seen to fall off the tree.
??
如果你還想知道更多普通專升本相關(guān)資訊,歡迎關(guān)注湖南專升本網(wǎng)官網(wǎng),更多精彩等你發(fā)現(xiàn)。備考湖南專升本的同學(xué),如果有專升本相關(guān)疑惑或者需要學(xué)習(xí)上的幫助,可以在文末留下你的聯(lián)系方式,或者直接添加樂貞老師微信lezhen_edu,我們將為您答疑解惑~
部分內(nèi)容來源于網(wǎng)絡(luò)轉(zhuǎn)載、學(xué)生投稿,如有侵權(quán)或?qū)Ρ菊居腥魏我庖?、建議或者投訴,請(qǐng)聯(lián)系郵箱(1296178999@qq.com)反饋。 未經(jīng)本站授權(quán),不得轉(zhuǎn)載、摘編、復(fù)制或者建立鏡像, 如有違反,本站將追究法律責(zé)任!
本文標(biāo)簽: 湖南專升本考試專升本備考專升本經(jīng)驗(yàn)分享 上一篇:普通湖南專升本備考中的幾大錯(cuò)覺,你中了幾個(gè)? 下一篇:湖南專升本學(xué)霸遇到難題時(shí)都是怎么思考的?