牛津译林8BU5语法enough-to与too-to

8BU5语法：enoughto与tooto第一部分：enoughto一、enoughto的用法1.可以用tobe+adj+enoughto-infinitive来描述人的个性和能力。意思是某人、某物足够怎么样做某事。其中enough修饰形容词，要放在形容词之后。例：Youareoldenoughtolearnaboutmanners.Ifyouareintheirway,Britishpeoplewillbepoliteenoughtowaittillyoumove.2.还可以用todo+adv+enoughto-infinitive句式，表达某人、某物做某事足够怎么样，导致什么样。enough是副词，修饰副词，位于所修饰词之后，意思是“十分地；充分地；足够地；充足地”，与不定式to连用，在句子中作状语，表示程度。如：Amyrunsquicklyenoughtocatchthebus.Hestudieshardenoughtowinthefirstprize.二、enough的其他用法1.enough做形容词，意思是足够的，充分的。作定语置于被修饰的名词前后均可，前置时强调enough；后置时强调被修饰词，如例：Fivefiremenwillbequiteenough.Ihaveenoughbooksnow.=Ihavebooksenoughnow.That’senough.Thankyou.2.enough可以作名词、代词，意思是“足够；充分”。作代词可以代替可数名词或不可数名词，在句中作主语或宾语。当其作主语的时候，看作单数。如:1.Enoughhasbeensaidonthisproblem.关于这一问题说得已经足够多的了。（作名词）2.---Wouldyoulikeanothercupoftea?---No,thanks.I’vehadenough.不，谢谢。我已喝够了。(enough=enoughtea)（作代词）3.enough作感叹词时的意思是够了，停止，住手，不要再继续了，用以表示不耐烦或恼怒例：You’vebeenpractisingtheviolinallafternoon.Enough.第二部分：tooto一、tooto的用法1.可以用“be+too+形容词+todosth”结构来表达一个否定结构，意思是“太……而不能做某事”；“太……以至于不能……”。如：Britishpeoplearetoopolitetoshoutloudlyinpublic.Suzywastooshytojointhediscussion.可以在不定式前加介词for引出逻辑主语。TheUKistoofarawayforJennytogotoonherown.2.too...to结构表示肯定的意义。①too前面含有表示否定意义的词，如not，never，nothing时，too...to结构不表示否定的意思。如：It’snevertoooldtolearn.②too后面接表示感情的形容词，如glad，happy，sad等时，too...to结构不表示否定的意思，而表示肯定的意义。如：Heistoosadtohearthesadnews.★★★注意：too…to结构和never一起使用时并不表示否定。如：Oneisnevertoooldtolearn.活到老，学到老。二、tooto和enough...to的转换1.以上两种结构有时可以转换，注意其中的形容词要作相应的变化，即：enough前的形容词与too之后的形容词互为反义词，同时应改为not…enoughto的形式。Heistooyoungtolookafterhimself.他年龄太小不能照顾自己。=Heisnotoldenoughtolookafterhimself.2.句型转换的分析：too...to表示的句型本质上是否定含义，Heistooyoungtolookafterhimself.这句话的本质是Hecan’tlookafterhimself.而enough...to表示的句型本质上是肯定含义。Heisoldenoughtolookafterhimself.这句话的本质是Hecanlookafterhimself.变否定：Heisnotoldenoughtolookafterhimself.即Hecan’tlookafterhimself.因此，Heistooyoungtolookafterhimself.=Heisnotoldenoughtolookafterhimself.总结：too+形容词+to=not+反义词+to3.拓展：so+adj/adv+that+句子（肯定句）：“如此------以至于------能做某事”。例：Theboyissoshortthathecan’ttouchthetop.=Theyboyistooshorttotouchthetop.=Theboyisnottallenoughtotouchthetop.4.betoonoisytodosth【2020年玄外】4.这个办公室太吵了以至于无法成为一个良好的工作之地。Theofficeis____________beagoodplacetoworkin.答案toonoisyto一．单项选择1.Thebagofriceis_______heavyforTomtocarry.Let’sgoandhelphim.A.tooB.soC.veryD.such答案：A2.Theworkersaretoobusy______.Theyhavetokeepworkingtilltheyfinishit.A.havingarestB.nottohavearestC.tohavearestD.thattheyhavearest答案：C3.Thegateofthefactoryshouldbewider.Itis______fortwocarstogothrough.A.toowideB.wideenoughC.nottoowideD.notwideenough答案：D4.Ifindit______toworkoutthisproblem.Youneedn’tgototheteacher.A.enougheasyB.easilyenoughC.easyenoughD.veryeasily答案：C5.Tomwas________excitedtoexpress_____clearlyatthattime.A.so;himselfB.too;himselfC.too;himD.so;him答案：B6.Samisalways______towaitforalongtimewithoutgettingangry.A.toopatientB.patientenoughC.enoughpatientD.verypatient答案：B二、句型转换1.Thelittleboyisveryweakandhecan’tlookafterhimself.()Thelittleboyisnot____________________________afterhimself.答案：strongenoughtolook2.MrWangneverrefusestohelpothers.Heisreallykind.It’sreally_____________MrWangnever_______________tohelpothers.答案：kindof;torefuse3.TheboxissoheavythatIcan’tcarryit.()Theboxis_______heavy__________________carry.答案：too;formeto4.Theboywasveryfrightenedandcouldn’tmove.Theboywas_________________________.答案：toofrightenedtomove5.ThegirlissocleverthatshecanworkoutdifficultMathsproblems.Thegirlis_____________toworkoutdifficultMathsproblems.答案：cleverenough三、根据汉语意思，完成下列句子。1.这个问题太难了，我无法解决。Thisproblemis_____________________________.答案：toodifficultformetoworkout/solve2.他太疲倦了，无法继续学习。Heis___________________continuewiththestudy.答案：tootiredto3.王老师足够耐心，一遍遍地给我们讲解难题。Mr.Wangis____________difficultproblemsforusagainandagain.答