高二英語(yǔ)必修四知識(shí)點(diǎn)
知識(shí)掌握的巔峰，應(yīng)該在一輪復(fù)習(xí)之后，也就是在你把所有知識(shí)重新?lián)炱饋?lái)之后。這樣看來(lái)，應(yīng)對(duì)高二這一變化的較優(yōu)選擇，下面給大家?guī)?lái)一些關(guān)于高二英語(yǔ)必修四知識(shí)點(diǎn)，希望對(duì)大家有所幫助。
高二英語(yǔ)必修四知識(shí)點(diǎn)1
1. amuse
「課文原句」Parks provide people with a place to amuse themselves and to escape their busy lives for a while. (P33)
「名師點(diǎn)撥」amuse vt. 意為“使高興;使開(kāi)心”，和please(取悅于;讓……高興)是近義詞。amuse oneself意為“自?shī)首詷?lè);消遣”。amuse的名詞形式是amusement.如：I think it amuses him to see people make fools of themselves. I bought a magazine to amuse myself while I was on the train. They are more than amusement parks with rides， such as a Ferris wheel， merry-go-round or a roller coaster. (P33)
Carl came last in the race， much to my amusement.「知識(shí)拓展」amused adj. 意為“逗樂(lè)的;覺(jué)得好笑的”，常用be amused (at / by sth)，指“覺(jué)得有趣;好笑;以……為樂(lè)”。如：She was very amused by / at your comments. Amused by the flying kites， the child stopped crying.
2. various
「課文原句」Though parks share this basic purpose， they find various ways to meet this need. (P33)
「名師點(diǎn)撥」various adj. 意為“不同的;各種各樣的”，相當(dāng)于different kinds of，后接復(fù)數(shù)名詞。如：At the meeting， the people present expressed their various opinions. The students were late for various reasons.「知識(shí)拓展」various是由動(dòng)詞vary(變化)派生而來(lái)的形容詞，它的副詞形式是variously.variety是名詞，意為“有變化”，用a variety of表示“各種各樣的;多種多樣的”，后接復(fù)數(shù)名詞，可與various互用。如：These new parks have a variety of things to see and do. (P33)
3. charge
「課文原句」They all charge money for admission， and for the rides and shows in the park. (P33)
「名師點(diǎn)撥」charge通常作及物動(dòng)詞，意為“收(費(fèi));索(價(jià))”，此時(shí)charge后接賓語(yǔ)(被收費(fèi)的對(duì)象)和錢(qián)數(shù);如果接購(gòu)買的商品或其它原因，用for連接。如：I‘ll charge you five dollars. How much do you charge for a haircut?
charge還可以表示“把……歸咎于(to， on， upon);告發(fā);在控告(with)”。如：Bob was charged with the murder， but he refused to admit it.
「知識(shí)拓展」charge作名詞時(shí)，構(gòu)成許多固定搭配：in charge(主管);in charge of(負(fù)責(zé)某事);in the charge of(由……管);take charge of(負(fù)責(zé)管理)。如：The doctor in charge told us to be calm. Who is in charge of the school instead of Mr Black?
The factory has been in the charge of the new boss for five months. Can you take charge of this class please， Miss Li?
4. profit
「課文原句」The big companies that own them parks except to make a profit not just by the charges for admission… (P33)
「名師點(diǎn)撥」profit n.意為“利潤(rùn);經(jīng)濟(jì)上的好處”，既可數(shù)也不可數(shù)，用作復(fù)數(shù)的場(chǎng)合較多;也可譯為“好處;益處(不可數(shù))”。make a profit指“獲得利潤(rùn)”。如：Tom said he would give up his profits if there were no explanations to give him. She makes a big profit from selling waste material to textile companies.「知識(shí)拓展」profit也可作及物或不及物動(dòng)詞，profit by意為“從……中得到好處”。如：You must make it clear what it will profit me. You may profit by the experience of others.
5. advance
「課文原句」… and there are future parks， where people can go on imaginary trips to space and use advanced computer techniques to experience life in the future. (P34)
「名師點(diǎn)撥」advanced adj. 意為“高級(jí)的;先進(jìn)的”，其動(dòng)詞形式是advance，可作及物動(dòng)詞或不及物動(dòng)詞，意為“推進(jìn);促進(jìn);提前”。如：The Party Committee is going to advance our career to a new stage. (及物動(dòng)詞)
The date of the meeting has been advanced from Friday to Monday. (及物動(dòng)詞)
After having studied abroad for three years， they didn‘t advance in knowledge at all. (不及物動(dòng)詞)
高二英語(yǔ)必修四知識(shí)點(diǎn)2
過(guò)去分詞做狀語(yǔ)
Worriedaboutthejourney,Iwasunsettledforthefirstfewdays.
Well-knownfortheirexpertise,hisparents’company…..
Confusedbythenewsurroundings,Iwashitbythelackoffreshair.
Exhausted,Islidintothebedandfellfastasleep.
過(guò)去分詞作狀語(yǔ)：過(guò)去分詞作狀語(yǔ)時(shí)，說(shuō)明動(dòng)作發(fā)生的背景或情況，其等同于一個(gè)狀語(yǔ)從句。vt過(guò)去分詞作狀語(yǔ)時(shí)與主句主語(yǔ)構(gòu)成被動(dòng)關(guān)系，表示被動(dòng)和完成，vi過(guò)去分詞表示狀態(tài)或動(dòng)作的完成。
Heated,waterchangesintosteam.
Theprofessorcamein,followedbyagroupofyoungpeople.
1作原因狀語(yǔ)，等于as/since/because引導(dǎo)從句
Movedbywhatshesaid,wecouldn’thelpcrying.=(Aswearemovedbywhatshesaid…
2作時(shí)間狀語(yǔ)，等于when引導(dǎo)時(shí)間從句，如果分詞表示的動(dòng)作與謂語(yǔ)的動(dòng)作同時(shí)發(fā)生，可在分詞前加when/while/until等使時(shí)間意義更明確。
Whenheated,watercanbechangedintosteam.
Seenfromthehill,theparklooksverybeautiful.=(Whentheparkisseenfromthehill…
3作條件狀語(yǔ)等于if/whether引導(dǎo)從句
Givenmoreattention,thecabbagescouldhavegrownbetter.=(Iftheyhavebeengivenmoreattention….
Comparedwithyou,westillhavealongwaytogo=(Ifwearecomparedwithyou…
4作方式或伴隨狀語(yǔ)
Theactresscamein,followedbyherfans.
Shesatbythewindow,lostinthought.
5作讓步狀語(yǔ)
Muchtired,hestillkeptonworking.=(Althoughhewastired,)he….
6獨(dú)立主格結(jié)構(gòu)：當(dāng)分詞的邏輯主語(yǔ)不是主句主語(yǔ)時(shí)，分詞可以有自己獨(dú)立的邏輯主語(yǔ)，這種結(jié)構(gòu)稱為獨(dú)立主格結(jié)構(gòu)。常用來(lái)表示伴隨情況。
Theboyrushedintotheclassroom,hisfacecoveredwithsweat.
Allthingsconsidered,yourarticleisofgreatvaluethanhers.
Rewritewithproperconjunctions
Example:Unitedwestand,dividedwefall.
Ifweareunited,wewillstand,butifwearedivided,wewillfall.
1Askedwhathadhappened,hetoldusaboutit.
→Whenhewasaskedwhathadhappened,…
2Wellknownforhisexpertadvice,hereceivedmanyinvitationstogivelectures.
→Becausehewaswellknownforhisexpertadvice,…
3Givenmoretime,wewouldbeabletodotheworkmuchbetter.
Ifweweregivenmoretime,
4OncetranslatedintoChinese,thebookbecameverypopularamongChineseteenagers.
OnceitwastranslatedintoChinese,
5Deeplyinterestedinmedicine,shedecidedtobecomeadoctor.
Becauseshewasdeeplyinterestedinmedicine,
6Leftaloneathome,Samdidnotfeelafraidatall.
Althoughhewasleftaloneathome,
現(xiàn)在分詞與過(guò)去分詞作狀語(yǔ)
現(xiàn)在分詞作狀語(yǔ)時(shí)，與其邏輯主語(yǔ)之間是主動(dòng)關(guān)系，;而過(guò)去分詞與其邏輯主語(yǔ)之間則表示被動(dòng)關(guān)系。
Seeingthesepictures,Icouldn’thelpthinkingofthosedayswhenIwasinBeijing.Seenfromthetopofathirty-storeyedbuilding,Beijinglooksmoremagnificent.(see)
選擇現(xiàn)在分詞還是過(guò)去分詞，關(guān)鍵看主句的主語(yǔ)。如分詞的動(dòng)作是主句的主語(yǔ)發(fā)出，分詞就選用現(xiàn)在分詞，反之就用過(guò)去分詞。例如：
Usedforalongtime,thebooklooksold.
由于用了很長(zhǎng)時(shí)間，這本書(shū)看上去很舊。
Usingthebook,Ifindituseful.
在使用的過(guò)程中，我發(fā)現(xiàn)這本書(shū)很有用
注意:1.系表示主語(yǔ)所處的狀態(tài)
_____inthought,healmostranintothecarinfrontofhim.(lose)
______inwhite,shelooksmorebeautiful.(dress)
belostin
bedressedin
beinterestedin
bedevotedto
besupposedto?becaughtintherain
beseatedin
bepreparedfor
bedeterminedto
2.不與主語(yǔ)保持一致的固定結(jié)構(gòu)
generallyspeaking一般說(shuō)來(lái)
strictly/franklyspeaking嚴(yán)格地說(shuō)/坦白地說(shuō)
judgingfrom從…判斷
allthingsconsidered從整體來(lái)看
takingallthingsintoconsideration全面看來(lái)
例如：Judgingfromhisface,hemustbeill.從他的臉色看，他一定是病了。
Generallyspeaking,dogscanrunfasterthanpigs.
總的來(lái)說(shuō)，狗比豬跑得快。(speaking不是dogs的動(dòng)作)
Practice
1.CompleteeachsentencesusingtheP.P.oftherightverb.
buildfrightentrapfollowshootseeexamine
1________bynoisesinthenight,thegirlnolongerdaredtosleepinherroom.
2Theladyreturnedhome,________bytwopolicemen.
3Afterhavingbeen_________carefully,theroomwaslockedagain.
4.______in1949,theexhibitionhallisover50yearsold.
5_____fromadistance,theOperaHouselookslikeshipsails.
6If_____inaburningbuilding,youshouldsendforhelp.
7Although______intheleg,hecontinuedfiringatthepolice.
練習(xí)
1____time,hewillmakeafirst-classtennisplayer.
AHavinggivenBTogiveCGivingDGiven
2___in1636,HarvardisoneofthemostfamousuniversitiesintheUnitedStates.
ABeingfoundedBItwasfounded
CFoundedDFounding
3Unless__tospeak,youshouldremainsilentattheconference.
AinvitedBinviting
CbeinginvitedDhavinginvited
4___,buthestillcouldn’tunderstandit.
AHehadbeentoldmanytimes
BHavingbeentoldmanytimes
CToldmanytimes
DAlthoughhehadbeentoldmanytimes
5Whenfirst___tothemarket,theseproductsenjoyedgreatsuccess.
AintroducingBintroduced
CintroduceDbeingintroduced
6Thereseemedtobenothing___todobut___forthedoctor.
Aleave/sendBleft/tosend
Cleft/sendDleaving/send
作介詞but,expect,besides的賓語(yǔ)，前面又有實(shí)意動(dòng)詞do時(shí)，不定式通常省去to
7____everywhere,thewolveshadnowhere___themselves.
AHunting/hidingBTohunt/tohide
CHunted/hidingDHunted/tohide
8.The___morning,thefathercameintothelonelyhouse,___byhisnaughtyboy.
A.following,followingB.followed,followed
C.following,followedD.followed,following
9.Mrs.Whitewasgladtoseethenurse___afterhersonandwaspleasedtoseetheboywell___careofinthenursery.
A.looked;takenB.looking;taken
C.looked;tookD.looking;taking
10.Themurdererwasbroughtin,withhishands___behindhisback.
A.beingtiedB.havingtied
C.tobetiedD.tied
11.___moreattention,thetreescouldhavegrownbetter.
A.GivenB.Togive
C.GivingD.Havinggiven
高二英語(yǔ)必修四知識(shí)點(diǎn)3
1.非謂語(yǔ)動(dòng)詞的構(gòu)成和語(yǔ)法功能及用法對(duì)比。
2.非謂語(yǔ)動(dòng)詞的完成式、被動(dòng)式的用法和特點(diǎn)。
3.非謂語(yǔ)動(dòng)詞的復(fù)合結(jié)構(gòu)及否定形式。
4.不定式與動(dòng)名詞，動(dòng)名詞與現(xiàn)在分詞，現(xiàn)在分詞與過(guò)去分詞，分詞作狀語(yǔ)與獨(dú)立結(jié)構(gòu)等用法對(duì)比。
5.不定式和動(dòng)名詞在及物動(dòng)詞后作賓語(yǔ)的區(qū)別是考查的熱點(diǎn)。
6.過(guò)去分詞作定語(yǔ)，不定式和分詞作賓語(yǔ)補(bǔ)足語(yǔ)的用法。
7.不定式標(biāo)志to和介詞to的用法判斷等。
8.帶to與不帶to的不定式的用法及區(qū)別。
考點(diǎn)一、考查謂語(yǔ)動(dòng)詞與非謂語(yǔ)動(dòng)詞的識(shí)別
英語(yǔ)句子至少應(yīng)該包括主語(yǔ)與謂語(yǔ)兩部分, 而多數(shù)情況下謂語(yǔ)都由動(dòng)詞來(lái)充當(dāng)。如果對(duì)句子成分劃分不清，把謂語(yǔ)動(dòng)詞與非謂語(yǔ)動(dòng)詞混淆, 做題效果可想而知。要克服這一毛病，關(guān)鍵在于正確判斷、識(shí)別動(dòng)詞在句中是否充當(dāng)謂語(yǔ)。如：
1. The children (play) _____ the violin over there will go on the stage next week.
根據(jù)句子結(jié)構(gòu)，我們可以看出這是一個(gè)簡(jiǎn)單句。主語(yǔ)是The children，謂語(yǔ)部分是will go on the stage，動(dòng)詞play顯然在句中不作謂語(yǔ)，應(yīng)用非謂語(yǔ)動(dòng)詞形式。依據(jù)play與它的邏輯主語(yǔ)children之間的主動(dòng)關(guān)系以及拉小提琴動(dòng)作正在進(jìn)行，可以判斷用現(xiàn)在分詞作定語(yǔ)修飾children，意為“正在那邊拉小提琴的小孩”，因而正確答案為playing。
考點(diǎn)二、考查作狀語(yǔ)的非謂語(yǔ)動(dòng)詞的辨析
作狀語(yǔ)的非謂語(yǔ)動(dòng)詞主要考查其各種形式的辨析，即是選擇動(dòng)詞不定式、現(xiàn)在分詞還是過(guò)去分詞作狀語(yǔ), 不同的狀語(yǔ)對(duì)非謂語(yǔ)動(dòng)詞的要求不同。 動(dòng)詞不定式主要作目的、結(jié)果和原因狀語(yǔ);現(xiàn)在分詞和過(guò)去分詞主要作時(shí)間、原因、條件、讓步、方式和伴隨狀語(yǔ)，兩者不同之處在于：現(xiàn)在分詞作狀語(yǔ)時(shí)，現(xiàn)在分詞的動(dòng)作就是句子主語(yǔ)的動(dòng)作,即它的邏輯主語(yǔ)就是句子的主語(yǔ)，它們之間的關(guān)系是主動(dòng)關(guān)系，而過(guò)去分詞作狀語(yǔ)時(shí)，雖然它的邏輯主語(yǔ)也是句子的主語(yǔ)，但過(guò)去分詞表示的動(dòng)作是句子主語(yǔ)承受的動(dòng)作，它們之間的關(guān)系是被動(dòng)關(guān)系。請(qǐng)看下面例題：
1.____tired of Tom’s all-talk-no-action attitude, Julia decided to do the job all by herself.
A) To get B) To have got
C) Getting D) Have got
一般來(lái)說(shuō)，在句子中沒(méi)有連接詞的情況下, 逗號(hào)是無(wú)力連接兩個(gè)句子的。據(jù)此，首先可以確定 這是一個(gè)簡(jiǎn)單句，非謂語(yǔ)動(dòng)詞短語(yǔ)放在句首作狀語(yǔ)。依據(jù)非謂語(yǔ)動(dòng)詞短語(yǔ)get tired of與其邏輯主語(yǔ)Julia之間的主動(dòng)關(guān)系，以及謂語(yǔ)動(dòng)詞與非謂語(yǔ)動(dòng)詞所表示的動(dòng)作幾乎同時(shí)發(fā)生，沒(méi)有明顯的先后順序，可以斷定應(yīng)用現(xiàn)在分詞一般式作原因狀語(yǔ),即“由于厭倦了Tom只說(shuō)不做的工作態(tài)度”，故正確答案為C。
考點(diǎn)三、考查非謂語(yǔ)動(dòng)詞邏輯主語(yǔ)的分辨
非謂語(yǔ)動(dòng)詞雖然在句中不作謂語(yǔ)，但仍然有自己邏輯上的主語(yǔ)。歷年各種考試的重點(diǎn)在于正確分辨非謂語(yǔ)動(dòng)詞的邏輯主語(yǔ)是什么，兩者之間是主動(dòng)關(guān)系還是被動(dòng)關(guān)系，特別是非謂語(yǔ)動(dòng)詞作狀語(yǔ)的時(shí)候。我們知道，當(dāng)非謂語(yǔ)動(dòng)詞放在句首作狀語(yǔ)的時(shí)候，一般來(lái)說(shuō)，它的邏輯主語(yǔ)就是句子的主語(yǔ)，那么，當(dāng)它的邏輯主語(yǔ)不是句子的主語(yǔ)時(shí)，又會(huì)出現(xiàn)什么現(xiàn)象呢?請(qǐng)看下面例題：
1. The last bus (go)____, we had to walk home.
2. Weather (permit)____, the spaceship will be launched tomorrow evening.
這兩個(gè)非謂語(yǔ)動(dòng)詞短語(yǔ)的邏輯主語(yǔ)都不是句子的主語(yǔ)，而是分別有它自己的邏輯主語(yǔ)，即“是 末班車開(kāi)走了，而不是我們走了”,“是天氣允許,而不是飛船允許”，這種現(xiàn)象或結(jié)構(gòu)就是獨(dú)立主格結(jié)構(gòu)。依據(jù)非謂語(yǔ)動(dòng)詞與其邏輯主語(yǔ)的主動(dòng)關(guān)系,正確答案分別為having gone和permitting。
請(qǐng)?jiān)倏聪旅胬}：
3. The work (finish) _____, they may go home.
4. The problem (discuss) _____ at the meeting- room now, the workers had to wait outdoors.
同樣，這兩道題的結(jié)構(gòu)也是獨(dú)立主格結(jié)構(gòu)。依據(jù)非謂語(yǔ)動(dòng)詞與其邏輯主語(yǔ)之間的被動(dòng)關(guān)系以及非謂語(yǔ)動(dòng)詞所表示動(dòng)作發(fā)生的時(shí)間性，可以判斷正確答案分別為finished(已完成)和being discussed(正在進(jìn)行)。
考點(diǎn)四、考查非謂語(yǔ)動(dòng)詞時(shí)態(tài)與語(yǔ)態(tài)的把握
非謂語(yǔ)動(dòng)詞雖然在句中不作謂語(yǔ)，但它仍然具有動(dòng)詞的特征，即可以有自己的主語(yǔ)(邏輯主語(yǔ)),也可以有時(shí)態(tài)和語(yǔ)態(tài)的變化。非謂語(yǔ)動(dòng)詞的各種時(shí)態(tài)形式都是依據(jù)句子的謂語(yǔ)動(dòng)詞的時(shí)態(tài)形式而變化的。一般情況下，如果非謂語(yǔ)動(dòng)詞所表示的動(dòng)作在謂語(yǔ)動(dòng)詞所表示的動(dòng)作同時(shí)或之后發(fā)生, 就用非謂語(yǔ)動(dòng)詞的一般式或進(jìn)行式(側(cè)重強(qiáng)調(diào)動(dòng)作正在進(jìn)行);如果非謂語(yǔ)動(dòng)詞所表示的動(dòng)作在謂語(yǔ)動(dòng)詞所表示的動(dòng)作之前發(fā)生，就用非謂語(yǔ)動(dòng)詞的完成式(特別強(qiáng)調(diào)動(dòng)作發(fā)生的先后)。非謂語(yǔ)動(dòng)詞的語(yǔ)態(tài)在于正確把握非謂語(yǔ)動(dòng)詞與其邏輯主語(yǔ)之間是主動(dòng)關(guān)系還是被動(dòng)關(guān)系。例如：
____ that Bob had got promoted, his friends came to congratulate him.
A) Heard B) Having heard
C) Hear D) To hear
依據(jù)非謂語(yǔ)動(dòng)詞hear與其邏輯主語(yǔ)his friends之間的主動(dòng)關(guān)系，以及前后句的邏輯關(guān)系，可以斷定用現(xiàn)在分詞形式來(lái)作時(shí)間狀語(yǔ)，再根據(jù)現(xiàn)在分詞的動(dòng)作“聽(tīng)說(shuō)”發(fā)生在主要謂語(yǔ)動(dòng)詞“來(lái)”之前，由此判斷應(yīng)該用現(xiàn)在分詞的完成式(只用作狀語(yǔ)時(shí)使用)，意為“聽(tīng)說(shuō)Bob已得到提升，他的朋友都來(lái)向他表示祝賀”，故正確答案為B。
考點(diǎn)五、考查非謂語(yǔ)動(dòng)詞作主語(yǔ)時(shí)句式的轉(zhuǎn)變
非謂語(yǔ)動(dòng)詞(動(dòng)詞不定式或動(dòng)名詞)作主語(yǔ)主要考查其句式的轉(zhuǎn)變，習(xí)慣上通常把it作為形式主語(yǔ)放在句首，作題時(shí)要善于分辨這種形式上的轉(zhuǎn)變。請(qǐng)看下面例題：
1. It is an honour for me (be) _____ your English teacher.
2. It is no use of us (wait) _____ at home like this.
根據(jù)對(duì)句式的分析，可以判斷出It是形式主語(yǔ),真正的主語(yǔ)由非謂語(yǔ)動(dòng)詞(動(dòng)詞不定式或動(dòng)名詞)來(lái)充當(dāng)。依據(jù)表語(yǔ)的特性以及句式的特點(diǎn),我們可以斷定第1題應(yīng)該填動(dòng)詞不定式，即to be，第2題應(yīng)該填動(dòng)名詞，即waiting。
六、考查作定語(yǔ)的非謂語(yǔ)動(dòng)詞的判斷
非謂語(yǔ)動(dòng)詞作定語(yǔ)主要考查非謂語(yǔ)動(dòng)詞作后置定語(yǔ)的情況，這里關(guān)鍵要把握住非謂語(yǔ)動(dòng)詞與其邏輯主語(yǔ)之間是主動(dòng)行為還是被動(dòng)行為,以及非謂語(yǔ)動(dòng)詞表示的動(dòng)作發(fā)生的時(shí)間性，即是正在進(jìn)行或已經(jīng)完成還是將要發(fā)生。一般來(lái)說(shuō)，用現(xiàn)在分詞一般式作定語(yǔ)往往表示動(dòng)作是主動(dòng)行為且正在進(jìn)行當(dāng)中，如果動(dòng)作是被動(dòng)行為且正在進(jìn)行當(dāng)中，就用現(xiàn)在分詞一般式的被動(dòng)語(yǔ)態(tài);用過(guò)去分詞作定語(yǔ)往往表示動(dòng)作是被動(dòng)行為且已經(jīng)完成; 用動(dòng)詞不定式作定語(yǔ)表示將要發(fā)生的動(dòng)作，如果是被動(dòng)行為，就用動(dòng)詞不定式一般式的被動(dòng)語(yǔ)態(tài)。 例如：
1. The boy (cry)____ over there is my younger brother.
依據(jù)cry與它的邏輯主語(yǔ)The boy之間的主動(dòng)關(guān)系和cry的動(dòng)作正在進(jìn)行，所以用現(xiàn)在分詞作定語(yǔ)修飾boy，因而正確答案為crying。
【精選試題】 名校模擬題及其答案
1. Everyone in our class was working hard and doing what we could _______a good college.
A. enter。mB. to enter
C. entering。mD. entered
2He ran as fast as he could _____ to catch the early bus.
A. to hope。mB. hope
C. hoping。mD. hoped
3.He spent every minute he could _____ spoken English.
A. practise。mB. to practise
C. practising。mD. practised
4.Before going abroad he devoted all he could _______ his oral English.
A. improve。mB. to improve
C. improvingD. to improving
5. He knows nothing about it, so he can’t help _______ any of your work.
高二英語(yǔ)必修四知識(shí)點(diǎn)4
一、不定式做主語(yǔ)：
1、不定式做主語(yǔ)一般表示具體的某次動(dòng)作。===動(dòng)名詞doing 表示習(xí)慣的，經(jīng)常的動(dòng)作。
e.g: To finish the building in a month is difficult.
To do such things is foolish.
To see is to believe. (對(duì)等)
注: 1). 不定式作主語(yǔ)時(shí),謂語(yǔ)用單數(shù)
2). 當(dāng)主語(yǔ)較長(zhǎng)，謂語(yǔ)較短時(shí)，常用it做形式主語(yǔ)，而將不定式放到謂語(yǔ)的后面。
it做形式主語(yǔ)，不定式放在謂語(yǔ)動(dòng)詞之后常用于下列結(jié)構(gòu)中：
(1)It is/was +adj.+of sb. to do…
(2) It is +adj.+for sb.+to do…
It is easy / difficult / hard / foolish / unwise / right / wrong / unnecessary
(3) it is +a +名詞+ to do...
It is a pity / a pleasure / a pleasant thing / one’s duty / an honor / a shame / a crime / no easy job… to do
It takes (sb.) some time / courage / patience …to do…
It requires courage / patience / hard work… to do…
-注意: probable 和 possible 均可作表語(yǔ)，但possible可以用不定式作真實(shí)主語(yǔ)， 而probable不能用不定式作真實(shí)主語(yǔ)。
It is probable for him to come to the meeting.(錯(cuò))
It is possible for him to come to the meeting.
It is possible / probable that he will come to the meeting.
二、不定式做表語(yǔ)
主語(yǔ)是以aim duty hope idea intention plan job suggestion wish purpose task 等為中心詞的名詞詞組 或以 what 引導(dǎo)的名詞性從句表示，后面的不定式說(shuō)明其內(nèi)容, 不定式作表語(yǔ)常表示將來(lái)或現(xiàn)在的動(dòng)作或狀態(tài)。
eg :My idea is to climb the mountain from the north.
Your mistake was not to write that letter.
What I would suggest is to start work at once.
三 、動(dòng)詞不定式作賓語(yǔ)
以不定式結(jié)構(gòu)為賓語(yǔ)的動(dòng)詞有：
ask, agree, care, choose, demand, decide, expect, fail, help, hope, learn, manage, offer, plan, prepare, pretend, promise, refuse, want, wish等只能用動(dòng)詞不定式作賓語(yǔ)
口訣(接不定式作賓語(yǔ)的動(dòng)詞)
想要學(xué)習(xí) 早打算( want learn plan)
快準(zhǔn)備 有希望( prepare hope wish expect)
同意否 供選擇(agree offer choose)
決定了 已答應(yīng)(decide be determined promise)
盡力去 著手做(manage undertake)
別拒絕 別假裝(refuse pretend)
失敗不是屬于你(fail)
e.g.Tom refused to lend me his pen.
We hope to get there before dark.
The girl decided to do it herself.
-注意:某些及物動(dòng)詞可用-ing也可用動(dòng)詞不定式作賓語(yǔ)但意義不同的有
stop go on remember forget
regret try mean can’t help
be used to
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