英语语法中的37大难点之后19大难点讲解

英语语法中的37大难点后前19大难点讲解（史前之最经典资料）

难点19常用词活用及搭配

词语辨析是英语学习的个重点，也是高考命题的,个热点。常用词的一些搭配也是命

题人较为关注的。

・难点磁场

1.(★★★★)一Whatdidyouthinkofherspeech?

一Sheforonehourbutdidn'tmuch.

A.spoke;speakB.spoke;say

C.said;speakD.said;say

2.(****)Icanhardlyheartheradio.Wouldyouplease?

A.tumitonB.turnitdown

C.turnitupD.tumitoff

3.(^TArikr**)LetHarryplaywithyourtoysaswell,Clare,youmustlearnto.

(NMET2000)

A.supportB.care

C.spareD.share

didn'tplanourartexhibitionlikethatbutitverywell.

A.workedoutB.triedout

C.wentonD.carriedon

・案例探究

1.(★★★★)1ananswertomyletterwithinafewdays.

A.waitB.hope

C.expectD.lookforward

命题意图：此题考查四个常用词的辨析运用。

知识依托：expect盼望、期望、预料。其用法：

expect+宾语

expect+宾语+todosth.

expecttodosth.

beexpectedtodosth…

错解分析：A项wait为近.带宾语需加介词for,waitforananswer。B项hope的用法。

①hopetodosth.②hope+that-clause.③hopeforsth.想要...D项应为lookforwardtoan

answer.

故答案为C。译为：“我盼望儿天内能收到你的回信”。

答案：C

2.Wethoughtofsellingthisoldfurniture,butwe'vedecidedtoit.ltmightbe

valuable.(NMET

2002)

A.holdontoB.keepupwith

C.turntoD.lookafter

命题意图：旨在考查四个常用短语作宾语。此题为五星级题目。

知识依托：holdontosth.=hangontosb.译为“保留，保住

错解分析：B项keepupwith…不落后...,追上C项turntosb./sth.求助于...turn

to…翻倒...D项lokafter照料，照顾

解题方法与技巧：此题可使用排除法，句意为“我们考虑过将这些旧家具卖掉，但是因

为它或许有用处，所以决定……”按句意，B、C、D项明显不可以，排除，只剩A项。

答案：A

3.Theguardtheoldmantopassafterheshowedhimthepass.

A.promisedB.agreed

C.letD.permitted

命题意图：此题旨在考查动词后跟复合宾语的情况。此题属五星级题目。

知识依托：permit（允许）的基本用法。

[permitsb.todosth.

[permitdoingsth.

bepermittedtodosth.

错解分析：agree（同意）后不能接复合宾语，即不能说agreesb./sth.todosth.

let（让）后跟不带to的不定式。

promise后可跟复合宾语，即promisesb.todosth.

但不定式的逻辑主语应是句子的主语。

答案：D

•锦囊妙计

1.高考对常用词考查要求越来越高，且不再是单纯的考查短语动词，而是把词语辨析和

语法、交际用语融合在一起，这就要求我们学习词语不能光靠死记硬背，而是要在语境中灵

活地去使用。

2.要注意名词与动词、名词与介词的搭配；动词与介词、副词的搭配、形容词与介词、

名词的搭配。如：

putaway拿开，放起来，放弃

putback放回（原处），拨回（钟表），推迟

putdown写下来，镇压，放下

putoff推迟，延期

putout熄灭，扑灭，生产

putintoJSA,（使）进入

puton穿，戴，上演

putthrough接通（电话）

puttouse利用

putup建造，举起，（提供）住宿

putupwith忍受，等等。

・歼灭难点训练

[.（★★★★）Howcanyouifyouarenot.

A.listening;hearingB.hear;listening

C.belisteningD.behearing;listeningto

[.（★★★★Netheminthegame.

A.wonB.defeat

C.gotD.beat

3.(★★★★★)!reallydon'twanttogototheparty,butIdon,tseehowIcanit.

A.getbackfromB.getoutof

C.getawayD.getoff

4.(★★★★)1don'tknowtherestaurant,butit'stobequiteagoodone.

A.saidB.told

C.spokenD.talked

5.(^^^^)You,reyourtimetryingtopersuadehim,hewillneverjoinus.

AppendingB.wasting

C.losingD.missing

6.(★)Wouldyoubesokindastometenminutes?

A.spendB.save

C.spareD.share

7.(^^^^)Kateinthecrowdedhall,hopingtofindProfessorLi.

A.lookedforB.lookedthrough

C.lookedaroundD.lookforwardto

€.(★★★★)Whenwefinallytogethomeafterthetiringjourney,wecouldhardly

moveastepfurther.

A.tryB.succeeded

C.completedD.managed

难点20疑问感叹句式巧还原

目前，对单选题的考查，不只是对语法进行简单的考查，而是通过对一些句型的转换，

考查对语法的灵活掌握。

・难点磁场

1.(★★★★)WasitinthisplacethelastEmperordied?

A.thatB.inwhichC.inwhereD.which

pleasedthedetectivewaswhathiscustomertoldhim.

A.hearingB.heardC.tohearingD.to

hear

3.(^^^i^^)Themanagerdiscussedtheplanthattheywouldliketoseethenextyear.

A.carryoutB.carryingout

C.carriedoutD.tocarryout

thisthereasonatthemeetingforhiscarelessnessinhiswork?

(2002上海春季)

A.heexplainedB.whatheexplained

C.howheexplainedD.whyheexplained

5.(★★★★★)1§thisbookthatyoureadyesterday?

A.abookB.aoneC.oneD.the

one

・案例探究

1.—wasittheydiscoveredtheentrancetotheundergroundplace?

—Totallybychance.

A.How;thatB.What;that

C.When;whenD.Where;that

命题意图：此题旨在考查强调句型的应用。此题属五星级题目。

知识依托：强调句型基本结构

1口$/\¥38+被强调部分+|山沆+其他成分

［who

错解分析：强调句型的词不能用what,where,when,指人用who,其他一律用that

解题方法与技巧：由答语可以看出问句是对方式进行提问，所以将答语带入问句中且转

化成陈述语序，则为：

Itwastotallybychancethattheydiscoveredtheentrancetotheunderground.然后再对by

chance提问，问题就迎刃而解了。

答案：D

2.一Whoareyougoingtohavethisletterforyou?

—Tom.

A.typeB.typedC.beentypedD.been

typing

命题意图：此题考查“havesb.dosth.”让其人做某事这一结构。此题属五星级题目。

知识依托："havesb.dosth.”让某人做某事

have…doingsth.让...持续做某事

havesth.done①遭受②请别人做某事③使……被……

错解分析：句子结构分析不对，导致错误选项的产生。

解题方法与技巧：把答语Tom代入问句中，即为

I'mgoingtohaveTomtypetheletterforme.

对Tom进行提问，不就得到答案了吗？

答案：A

3.differentlifetodayisfromitwasfiftyyearsago!

A.Whata;whatB.Whata;how

C.How;whatD.What;what

命题意图：旨在考查感叹句及名词性从句的引导词。此题属五星级题。

知识依托：①感叹句结构

Ca(an)+adj.+［他］可数名词+主+谓+其他

What+J“力+［♦］不可数名词+主+谓

Ladj.+［£7,④］可数名词+主+谓

How+fa+主+谓语

\adv.

②that引导名词性从句只充当引导词不作句子成分，而what可充当句子成分。

错解分析：若选A、B项句子就没有主语了。

解题方法与技巧：将感叹句简化为陈述句。

Lifetodayisdifferentfromwhatitwasfiftyyearsago!

答案：C

•锦囊妙计

1.找到问题的切入点是关键，将复杂结构还原。

2.熟练掌握定语从句、名词性从句、感叹句及强调句型等结构。

・歼灭难点训练

!.(★★★★★)一Whomwouldyouratherthecar?

一Myfather.

A.havefixB.havetofixC.hadfixD.havetobefixed

2.(^^^^)Wasit8o'clockyouheardsomeoneatthedoor?

A.when;knockingB.when;knockC.that;knockingD.that;knock

itintheroomMr.Johnlivedtheexhibitionwas

held?

A.that;thatB.where;whereC.that;whereD.where;that

4(★★★★)—Isyouwanttosay?

—Yes,that，sallIknow.

A.allwhat;yetB.whichall;unlessC.thatall;XD.allthat;so

5.(十itnotuntil1920regularradiobroadcastsbegan?

A.whileB.whichC.thatD.since

thehouseMrZhanghasbeenbrokeninto?

A.WhenwasitthatB.When/Has

C.HasD.Had

7.(^^^^)Didshewaschosenmadeherveryhappy?

A.whatB.thatC.whichD.it

8.(★★★★★)WasitattheairbattleonJune8,1994,wasledbycaptain

Johnson,thatPeterlosthislife?

A.when;thatB.that;who

C.which;thatD.which;when

难点21多变的省略句

英语中省略现象较为普遍，对省略的考查已成为高考中的热点。句子成分的省略，可分

为以下几种情况：

1.省略主语，主谓语或主谓的一部分

2.不定式符号to的省略

3.不定式结构中动词的省略

4.状语从句中的省略

5.定语从句中关系词的省略

6.虚拟语气中if和should的省略

7.考查not,so,neither,nor的"替代性"省略

・难点磁场

^(★★★★)Johnplaysfootball,ifnotbetterthan,David.

A.aswellB.aswellas

C.sowellD.sowellas

yougotoXi'an,you'11findtheplacestheremoremagnificentthan

commonly.

A.supposingB.supposed

C.tosupposeD.suppose

3.(十十★十)一WhatdoyouthinkmadeMarysoupset?

-herbicycle.

A.AsshelostB.Lost

C.LosingD.Becauseoflosing

thoughtherniceandhonestImether.

A.firsttimeB.forthefirsttime

C.thefirsttimeD.bythefirsttime

5.(^^^^)Borishasbrains.Infact,IdoubtwhetheranyoneintheclasshasIQ.

(NMET2002)

A.ahighB.ahigher

C.thehigherD.thehighest

—Youshouldhavethankedherbeforesheleft.

—Imeant,butwhenIwasleavingIcouldn'tfindheranywhere.

(2002年上海春季)

A.todoB.to

C.doingD.doingso

・案例探究

1.—Doyouthinkit'sgoingtorainovertheweekend?

A.Idon'tbelieveB.Idon'tbelieveit

C.IbelievenotsoD.Ibelievenot

命题意图：此题考查not在宾语从句中的“替代性”省略。此题属四星级题。

知识依托：“so”可代替某些动词后的宾语从句，但绝不能用it或that。这些常用的动

词后,：believe,beafraid,expect,hope,imagine,suppose彳列：

一Isshegoingtothepartytonight?

一Ithinkso./Ihopeso.

其否定有两种：①动词用否定结构。

②用not代替soo

又如：一Doyouthinkhewillpasstheexam?

—Idon'tthinkso./Ithinknot.前者更常用。

错解分析：A项应为Idon'tbelieveso。

C项否定也应否定谓语。

解题方法与技巧：根据具体语言环境，正确运用表达观点的方法。

答案：D

2.forthefreeticket,!wouldnothavegonetothefilmssooften.

A.IfitisnotB.Wereitnot

C.HaditnotbeenD.Iftherewereto

命题意图：旨在考查虚拟条件中if的省略。此题属五星级题。

知识依托：跟过去事实相反的虚拟条件句结构为If+主语+had+过去分词，主语

+would/could/mightdo…当if省略时，将had提主句首，即

Had+主语+过去分词，主语+would/could/mightdo***

错解分析：A项不是虚拟语气结构。

B项是跟现在事实相反的虚拟条件句。

D项是跟将来事实相反的虚拟条件句。

解题方法与技巧：从题干的后一句话入手，可.看出Iwouldnothavegoneto…是跟过去

事实相反的虚拟条件句，故答案为C。译为：要不是因为票是免费的，我也就不会经常去看

电影了。

答案：C

3.—Yououghttohavegiventhemsomeadvice.

_,butwhocaredwhatIasked?

A.SoitwasB.SoIoughttohave

C.SoIdidD.SoIoughtto

命题意图：考查。ughtto后作宾语的不定式的省略。此题属五星级题。

知识依托：oughtto,want,hope等动词后可省略作宾语的不定式短语，但该宾语若是be

动词或动词的完成时，则需在to后加be或haveo

—Areyouasoldier?

一No,but,wishtobe(asoldier).

答案：B

4.Theresearchissodesignedthatoncenothingcanbedonetochangeit.

(NMET2002)

A.beginsB.havingbegun

C.beginningD.begun

命题意图：此题考查省略在状语从句中的应用。此题属四星级题。

知识依托：当主句的主语和状语从句主句一致(或从句主语为it),且从句中含be,可把从

句的主语和be一起省略，例：

Iwonderwhyhedidn'tdoas(hewas)toldto.

错解分析：A、B、C项都为主动，而research应是由人启动的，应用被动。

解题方法与技巧：此类词，应分清主、被动关系。

答案：D

•锦囊妙计

掌握好省略句，应注意以下几条：

1.感官动词或使役动词(如：notice,hear,let,make)等后接不定式作宾补时省略to,被动时

t。不能省略。

2.在prefertodoratherthan-­•,cannothelpbut…do,nothing…but等句型中常省略to。

3.为避免重复，作某些动词(hope,want)等宾语或(tell,order,ask)的宾补时，省略不定式

短语，只保留不定式符号to。

4.应注意状语从句、定语从句中的省略。

状语从句中，如果谓语含动词be,主语又与主句主语一致或主语是it,从句中主语和be

一齐省略。

5.注意not,so.neither,nor的"替代性"省略。

・歼灭难点训练

1.(★★★★)—Tomfelldownfromtheladder.Ithinkhisrightlegisbroken.

—OhJ.

A.hopenottoB.hopenot

C.hopenotsoD.don'thope

2.(十★★★)[(thesametreatmentagain,he'ssuretogetwell.

A.givingB.give

C.givenD.beinggiven

3.(★★★★★)—Aren'tyouthemanager?

一No,andI.

A.don'twanttoB.don'twanttobe

C.don'twantbeD.don'twant

forthebus,!metanoldfriendofmine.

A.waitedB.waiting

C.waitD.towait

5.(★★★★)1don,tlikethewayhespeakstohismother.

A.whichB.inthat

C.xD.onwhich

6.(^^^^)Theyhadnothingtodobut.

A.towaitB.waiting

C.waitedD.wait

7.(*****)Childrenmustbetaughttoactwithgoodmannerswhen.

A.speakingtoB.spokento

C.arespeakingD.spokenof

8.(★★★★)—Haveyoucleanedtheroom?

一No,but.

A.I'mB.Iam

C.FmjustgoingD.Fmjustgoingto

外★★★★)一Doyoumindmytakingthisseat?

A.Yes,sitdownpleaseB.No,ofcoursenot

C.Yes,takeitpleaseD.No,youcan'ttakeit

1().(★★★★)green,thedoormightlookmorebeautiful.

A.YoupaintedB.Ifpainted

C.TopaintD.Haveitpainted

11.(★★★★)一Istheboyverysick?

—I'mafraid.

A.itB.thisC.soD.that

时.(★★★★)Theyknewherverywell.Theyhadseenhimupfromchildhood.

A.growB.grewC.wasgrowingD.togrow

13.(★★★★)Ratherthanonacrowdedbus,healwaysprefersabicycle.

A.ride;rideB.riding;ride

C.ride;torideD.toride;riding

itraintomorrow,wewouldhavetoputoffthevisittotheYangpu

Bridge.

A.WereB.Should

C.WouldD.Will

15.(★★★★★)Thoughmoney,hisparentsmanagedtosendhimtouniversity.

A.lackedB.lackingof

C.lackingD.lackedin

难点22虚拟语气

虚拟语气是动词的一种特殊形式。它用来表示所说的不是事实，或者是不可能发生的情

况，而是一•种愿望，建议或是与事实相反的假设。

・难点磁场

1.（★★★★）Jane'sfacesuggestedthatsheill,andherparentssuggestedthat

sheamedicalexamination.

A.be;shouldhaveB.was;have

C.shouldbe;hadD.was;has

2.（^^^^）Youdidn'tletmedrive.Ifweinturn,yousotired.

A.drove;didn'tgetB.drove;wouldn'tget

C.weredriving;wouldn'tgetD.haddriven;wouldn'thavegot

Iwisheveryfamilyalargehousewithabeautifulgarden.（2002

上海春季）

A.hasB.had

C.willhaveD.hadhad

・案例探究

1.1wishIyouyesterday.

A.seenB.didseeC.hadseenD.weretosee

命题意图：此题旨在考查wish后加宾语从句表示可实现的愿望。此题属四星级题。

知识依托：Wish+宾语从句表示不可实现的愿望，译为“……就好了，但愿……”

错解分析：A、B、D项都不是跟过去事实相反的虚拟语气结构。

解题方法与技巧：掌握wish后宾语从句的三种谓语动词结构。

答案：C

2.1suggestedthatthemeetingtilltomorrowmorning.

A.shouldputoffB.beputoffC.isputoffD.willputoff

命题意图：此题旨在考查suggest（建议）后加宾语从句，从句谓语动词的用法。此题

属四星级题。

知识依托：suggest/arrange/demand/insist/order/require等动词后的宾语从句中谓语用

（should）+动词原形。另外像advise/idea/order/demand/suggestion等词的表语从句和同位语从

句，谓语动词也用（should）+动词原形。

错解分析：A项应用shouldbeputoff（会议被延期）。

C、D项都不符合虚拟语气结构。

答案:B

3.Whenapencilisputinaglassofwater.itlooksasifit.

A.breaksB.hasbrokenC.werebrokenD.hadbeenbroken

命题意图：此题考查虚拟语气用于以asif（asthough）引导的表语从句或状语从句。此题

属四星级题目。

知识依托：如果从句与现在事实相反，谓语动词用一般过去时；表示与过去事实相反，

谓语动词用“had+过去分词”：表示与将来事实相反，谓语动词用"would（might,could）+动

词原形。”

LiMingspeaksEnglishasifhewereanEnglishman.（与现在事实相反）

Itlooksasifitmightrain.（与将来事实相反）

ItseemsasifTomhadtravelledalotinChinabefore.(与过去事实相反)

错解分析：本句意思是：当把铅笔放在一杯水里的时候，它看起来就跟断了似的。(其

实没断)与现在事实相反。故选C项。

解题方法与技巧:看whenapencilisputin…中谓语时态。

答案:C

・锦囊妙计

做好虚拟语气，除了掌握基本的结构外，还要注意句子所表达的意义与现在过去，还是

将来事实相反，看清时间状语，另外还要注意在其他结构中虚拟语气的运用。

1.在主语从句中谓语动词的虚拟语气结构为：“should+动词原形”表示惊奇，不相信，

惋惜等。

例：Itisadvisable/important/natural/necessarythatsb.(should)do

2.在Itistime/hightimethatsb.shoulddosth.

或Itistimethatsb.didsth

3.wouldrathersb.+过去时，指现在或将来。

例：I'dratherFatherwereherenow.

I'drathertheycameheretomorrow.

4.Butfor,,•without短语译为“要不是"，句子谓语也常用虚拟。

・歼灭难点训练

1.(★★★★)Thedoctorinsistedthatthepatientupsmoking.

A.wouldgiveB.giveC.givesD.gave

2.(★★★★★)someinformation,shecouldhaveansweredthequestions.

A.ShehadbeengivenB.Ifshewasgiven

C.HadifshebeengivenD.Hadshebeengiven

3.(★★★★)Withoutelectricityhumanlifequitedifficulttoday.

A.isB.willbe

C.wouldhavebeenD.wouldbe

4.(★★★★)Everythingwillgoonasusualasifhappened.

A.nothinghadB.anythinghadn't

C.nothingwasD.anythingwasnot

5.(★★★★)1£onlyItheiradvice.

A.followB.willfollow

C.havefollowedD.hadfollowed

6.(★★★★★)[£youatschool,youacollegestudentnow.

A.hadstudiedhard;wouldhavebeen

B.shouldhavestudiedhard;shouldhavebeen

C.hadstudiedhard;wouldbe

C.wouldstudyhard;musthavebeen

7.(★★★★)—Heisaverybraveman.

一Yes,IwishIhiscourage.

A.haveB.had

C.willhaveD.wouldhave

&.(★★★★)1(wasorderedthatnoparkingallowedinfrontofthebuilding.

A.isB.beC.wasD.wouldbe

9.(★★★★)Don'tcometoday.I*dratheryoutomorrow.

A.willcomeB.comeC.comesD.came

难点23有章可循的主旨大意题

阅读中的主旨大意题主要是考查学生在阅读全文的基础上归纳总结文意的能力，然而:

学生在阅读中常犯的毛病之一就是：只见树木，不见森林。

・难点磁场

1.（★★★★★）AWorldofOpportunity

TheNewYorkTimesisnowbetterthanever.

Allthemorereasontoorderhomedeliverynow.

NEW-SEPARATEsectionsforTheArts.MondaythroughThursday,andSports7daysaweek

thatyoucanpullout,takewithyouorpassalong.

NEW-TheDiningIn,DiningOutsection,Wednesdays,abanquet（宴席）ofgreatmealsyou

canmakeyourself,orderuporeatout.

NEW-TheHouse&Homesection.Thursdays,filiedwithuseful,interestingfeaturesand

articlesaboutmakingthemostofallsortsoflivingspaces.

NEW-Anexpanded,two-partWeekendsection.Fridays,withmoreideasaboutmovies,shows,

artexhibitions,outdoorandindoorrecreations.

Latestnewsandsportsresultsdaily.Andofcourse,dailyworldandnationalnews,Sunday,s

specialsectionsandalltheothergreatfeaturesyou'11continuetofindinTheTimes.

FindoutjusthowmuchYOUcanbenefitfromTheTimeseveryday.

Call1-800-331-1969orusethepostage-paidordercardtoorderconvenienthomedeliveryat

50%OFFourregularprice.

Questionl:Themainideaofthisadvertisementisthat.

A.manyopportunitieswillbeprovidedjusttothosewhoorderhomedelivery

B.severalnewsectionshavebeenprintedseparatelyfromnowon

C.readerscanbewellinformedofthelatestnewsandsportsresults

D.peoplecanpickupalltheinformationtheyareinterestedin

2.（★★★★★）Millionsofpeopleusecontactlenses（隐形眼镜）.Foranyonewhodoesn't

mindstickinghisfingersinhiseyes,thereareclearadvantages:contactscorrectvisionbetterthan

glasses,arelessoftencrushedunderfoot,don'tmakeyoulookboring,andcomeinahugevariety

offormssoft,firm,colored,andeventheatrical.

Moreandmorepeopleareturningtouseofcontactlenses.Butaretheysafe?

LatestresearchfromAustraliashowsthatnotallchemicalsareeffectiveinkillingall

germs（细菌）andsomeofthesegermscancauseblindnessinjust24hours.

Whilemostproblemswithcontactsstillcangobacktopoorhygiene（卫生）oroveruse,notall

sight-threateningconditionsonlyhappentothosewhowashtheirlensesunderthetapor

decide,whiletiredandemotional,tosleepintheirlensesforthethirdnightrunning.

Twoofthebiggesteye-damagingkillersprotozoanacanthamoebaandbacteria

pseudomonasareallaroundus,inourhomesandwatersupplies.Thisseeminglyharmlesspair

cancauseblindnessthroughkeratitis（diseaseofthecornea）.

“Thecornea（角月臾）islikeafive-layeredsandwich”,saysRaymondCurran,adoctorfrom

Omagh,NorthernIreland."Oncethebacteriagetintoalayertheycanreproducethereandturnthe

corneaopaque（toodarktoseethrough）.”

Anoptician（验光师）mayseeonepossiblysight-threateningcaseeachmonth,butataneye

hospitaltheremaybeseveraleachweek.Acanthamoeba,oftenseeminglymild,canbemisjudged

untilitistoolate.Meanwhile,pseudomonas,moreseriously,cancauseincreasingsightlosswith

eachhourthatpasses.Ifnottreatedimmediate1y,patientsmayneedacornealreplacement.

Andthereallybadnews,accordingtoProfessorRogerBuckley,attheMoorfieldseyehospital

inLondon,isthatacanthamoebais“oneofthehardestgermsonEarth”itcansurvivein

Antarctica.

Question2:Inthepassagethewritermainlywantstotellus.

A.thepossibledangerofcontacts

B.theimportanceofkeepingcontactsclean

C.somedoctors'opinionsaboutcontacts

D.theadvantagesanddisadvantagesofcontacts

onlyabout1000pandasleftintheworld,Chinaisdesperatelytryingto

clone（克隆）theanimalandsavetheendangeredspecies（物种）.That'samovesimilartowhata

TexasA&MUniversityresearchershavebeenundertakingforthepastfiveyearsinaproject

called"Noah'sArk”.

Noah'sArkisaimedatcollectingeggs,embryos（胚胎），semenandDNAofendangered

animalsandstoringtheminliquidnitrogen.Ifcertainspeciesshouldbecomeextinct,Dr.Duane

Kraemer,aprofessorinTexasA&M'sCollegeofVeterinaryMedicine,saystherewouldbe

enoughofthebasicbuildingblockstoreintroducethespeciesinthefuture.

Itisestimatedthatasmanyas2000speciesofmammals,birdsandreptileswillbecome

extinctinover100years.Thepanda,nativeonlytoChina,isindangerofbecomingextinctin

thenext25years.

Thisweek,Chinesescientistssaidtheygrewanembryobyintroducingcellsfromadead

femalepandaintotheeggcellsofaJapanesewhiterabbit.Theyarenowtryingtoimplantthe

embryointoahostanimal.

Theentireprocedurecouldtakefromthreetofiveyearstocomplete.

“Thenucleartransfer（核子移植）ofonespeciestoanotherisnoteasy,andthelackof

available（capableofbeingused）pandaeggscouldbeamajorproblem."Kraemer

believes."Theywillprobablyhavetodoseveralhundredtransferstoresultinonepregnancy

（havingababy）.Ittakesalongtimeandit'sdifficult,butthiscouldbegroundbreakingscience

ifitworks.Theyarecertainlynotputtinganylivepandasatrisk,soitisworththeeffort,“adds

Kraemer,whoisoneoftheleadersofthePrqjectatTexasA&M,thefirst-everattemptat

cloningadog.

“Theyaretryingtodosomethingthat*sneverbeendone,andthisisverysimilartoour

workinNoah'sArk.We'rebothtryingtosaveanimalsthatfaceextinction.Icertainlyappreciate

theireffortandthere*salotwecanlearnfromwhattheyareattemptingtodo.It'saresearchthat

isverymuchneeded”.

Question3:Thebesttitleforthepassagemaybe.

A.China,sSuccessinPandasCloning

B.TheFirstClonedPandaintheWorld

C.ExploringthePossibilitytoClonePandas

D.ChinatheNativePlaceofPandasForever

4.（★★★★★）Americanwomenexperienceagreatvarietyoflifestyles.A"typical”

Americanwomanmaybesingle.Shemayalsobedivorcedormarried.Shemaybeahomemaker,

adoctor,orafactoryworker.ItisverydifficulttogeneralizeaboutAmerican.However,onething

thatmanyAmericanwomenhaveincommonistheirattitudeaboutthemselvesandtheirrolein

Americanlife.

Historically,Americanwomenhavealwaysbeenveryindependent.Thefirstsettlersto

cometoNewEnglandwereoftenyoungcoupleswhohadleftbehindtheirextendedfamily（i.e.

theirparents,sisters,cousins,etc.）.Thewomenwerealoneinanew,undevelopedcountrywith

theirhusbands.Thishadtwoimportanteffects.Firstofall,thisasyetuncivilized（未开

化）environment（环境）demandedthateverypersonshareindevelopingitandinsurvival（生

存）.Womenworkedwiththeirhusbandsandchildrentomakethemselvesacceptedinthisnew

land.Second,becausetheywereinanewlandwithouttheestablished（确定的）influenceofolder

membersofsociety,womenfeltfreetostepintonontraditionalroles.

ThisroleofwomenwasstrengthenedinlateryearsasAmericansmovedwest,againleaving

familybehindandmeetinganewenvironment.Evenlater,intheEast,asnewsettlersarrived,the

womenoftenfoundjobsmoreeasilythanmen.Womenbecamethesupportersofthefamily.

WithintheestablishedlifestyleofindustrializedtwentiethcenturyAmerica,thestrongroleof

womenwasnotasattractiveasintheearlydaysofthecountry.Somewomenwereactiveoutside

thehome;otherswerenot.However,whenAmericanmenwenttowarinthe1940s,women

steppedintothemen,sjobsasfactoryandbusinessworkers.Afterthewar,somewomenstayedin

thesepositions,andotherslefttheirjobswithanewsenseoftheirownability.

Question4:Whatisthemainideaofthispassage?

A.DififerentlifestylesledbytheAmericanwomen.