Unit+4+A+glimpse+of+the+future+Using+language+Grammar课件 【高效课堂精研精讲】高中英语外研版选择性必修第三册+

B6U4UsinglanguageObservetherulesLookatthesentencesandanswerthequestions.Activity1a

...50percentofmytimewas

spentresearchingnewrestuarants.b

Everyrecommendationshegivesmeis

great…c

…

almost50percentofUSjobsareatriskfromautomationinthenext20years.d…noneofusispreparedforthechallengesofAI.1Whyis50percentsingularinsentence(a)butpluralinsentence(c)?2Whatarethesubjectsinsentences(b)and(d)?Aretheysingularorplural?ObservetherulesLookatthesentencesandanswerthequestions.Activity1a

...50percentofmytimewas

spentresearchingnewrestuarants.b

Everyrecommendationshegivesmeis

great…c

…

almost50percentofUSjobsareatriskfromautomationinthenext20years.d…noneofusispreparedforthechallengesofAI.1

Whyis50percentsingularinsentence(a)butpluralinsentence(c)?

Becauseinsentence(a),thepart“50percent”isfollowedbytheuncountablenoun“time”,whileinsentence(c),thepart“50percent”isfollowedbythecountablenoun“job”initspluralform.ObservetherulesLookatthesentencesandanswerthequestions.Activity1a

...50percentofmytimewas

spentresearchingnewrestuarants.b

Everyrecommendationshegivesmeis

great…c

…

almost50percentofUSjobsareatriskfromautomationinthenext20years.d…noneofusispreparedforthechallengesofAI.2Whatarethesubjectsinsentences(b)and(d)?Aretheysingularorplural?

Insentence(b),“Everyrecommendation”isthesubject.Insentence(d),“noneofus”isthesubject.Botharesingular.Subject-verbagreement定义：主语和谓语在人称和数等方面的一致

当主语是不定代词或含有修饰语时，谓语动词的形式要依据主语所表达的单、复数概念而定，而不仅仅是取决于简单的外在形式。Subject-verbagreement定义：主语和谓语在人称和数等方面的一致

当主语是不定代词或含有修饰语时，谓语动词的形式要依据主语所表达的单、复数概念而定，而不仅仅是取决于简单的外在形式。Subject-verbagreement用法归纳1:当主语被分数（百分数）、表示量的词汇等修饰时，谓语动词的形式要依据主语本身进行判断，具体如下：如果主语是可数名词复数，或主语加上修饰语后整体表达的是复数概念，那么谓语动词要用复数形式。如果主语本身是可数名词单数或者不可数名词，则谓语动词要用单数形式；

图书馆里大约三分之一的书都是由这所学校的毕业生捐赠的。Aboutone-thirdofthebooks

inthelibraryaredonatedbystudentswhograduatedfromtheschool.

每年大约有10%的森林被毁。

Around10percentoftheforest

is

destroyedeachyear.

1)Fiftypercentofthestudentsinourschool____girls.2)Three-fourthsofthesurfaceoftheearth____sea.

3)Oversixtypercentofthecity_____destroyedinthewar.are

iswasPracticeSubject-verbagreement用法归纳2：常用的表示“量”的短语后面接名词的谓语情况。1)anumberof/avarietyof/varietiesof+可数名词复数作主语时，谓语动词用复数形式。alargeamountof+不可数名词，谓语动词用单数；

largeamountsof+不可数名词，谓语动词用复数。 Anumberofnewhouseshavebeenbuiltthere. Avarietyofproductsareonsalenow. Alargeamountofmoneywasspentonthebridge. Largeamountsofmoneywerespentonthebridge.Subject-verbagreement用法归纳3：当主语被不定代词修饰或主语本身是不定代词时，谓语动词的形式需要根据主语加上修饰语后整体表达的意义来进行判断。

所有方法都试过了，却没有什么效果。Everymeanshasbeentriedoutwithoutmuchresult.

Subject-verbagreement1)Eachboy______aprize.2)Manyofus_____gonethroughregulartraining.3)Everypossibleapproach____beentried,butinvain.4)Bothoftheinstruments____notpreciseones.5)Something___goingtohappen,andnobodycanstopitfromhappening.havehasaregetsis用法归纳4：all

作主语表示人时，谓语动词用复数；表示物时，谓语动词用单数.

结果好一切都好。Alliswellthatendswell.大家都急于达成一项协议。Allareeagertoreachanagreement.

Subject-verbagreement用法归纳5：none作主语时，谓语动词既可用单数也可用复数，这要取决于说话人的看法，如：

似乎我们全都没有想到这一点。Noneofusseemtohavethoughtofit.我们都没有照相机。

Noneofushasgotacamera.(none=notasingleone)

Subject-verbagreementSubject-verbagreementNobody_______(have)gotaticket.Nothing_______(be)available.Noneofthepizza_______(be)left.Noneofthepassengers__________(be)awareofthedanger.Whenyouusenoneofwithapluralnounorpronoun,orasingularnounreferringtoagroupofpeopleorthings,youcanuseeitherasingularorapluralverb.Forexample,Noneofthetrainsis/aregoingtoLondon.Noneofherfamilyhas/havebeentocollege.hasis/wasis/waswas/were用法归纳6：

当主语被否定词修饰或主语本身是否定词时，谓语动词一般用单数形式。如：用法归纳7：句中有两个或两个以上的主语时，谓语动词应和离它最近的主语保持人称和数的一致，这就是就近一致原则。

（1）连词连接的并列主语当or,either...or...,neither...nor...,notonly...but(also)...,not...but..等链接并列的主语时，谓语动词的单复数与邻近的主语一致。

要么是他要么是你要对这场事故负责。

Eitherheoryouareresponsiblefortheaccident.

不仅是你的父母，我也对你的借口感到恶心。NotonlyyourparentsbutalsoIamsickofyourexcuse.不是职员而是经理抱怨顾客的流失。Notthestaffbutthemanagercomplainsaboutthelossofcustomers.Subject-verbagreement用法归纳7：句中有两个或两个以上的主语时，谓语动词应和离它最近的主语保持人称和数的一致，这就是就近一致原则。

（2）here/there引起的倒装句的主语谓语动词的人称和数根据主语的人称和数来确定早班车来了。Herecomestheearlybus.有两条狗和一只猫与老妇人住在农舍里。Therearetwodogsandacatlivinginthefarmhousewiththeoldwoman.（3）“morethanone+单数名词”与”manya+单数名词”做主语，谓语动词用单数许多目击者都举报了他的罪行。Morethanonewitnesshasreportedhiscrime.许多朋友都帮助过我。Manyafriendhasofferedmeahand.Subject-verbagreement用法归纳8：主语后带介词短语或其他插入语。如：aswellas（和）,nolessthan（多达）,alongwith（和...一起）,with（和...一起）,like（诸如）,ratherthan(而不是),togetherwith（连同）,but（除...之外）,except（除...之外）,besides（除...之外）,including（包括）,inadditionto（除...之外）,insteadof(而不是)等，谓语动词根据主语的人称和数来确定Subject-verbagreement

地球和其他七大行星围绕太阳转。Theearth,aswellassevenotherplanets,orbitsthesun.除了你的父母和老师，没有人会无条件支持你。Noonebutyourparentsandteachersisalwaysonyoursideonanyaccount.Subject-verbagreementNowadays,somecompaniesoffergenetictestingforchildren’stalents.Alargenumberofclientshave/hasbeenattractedtoit.Theyareparents,eagertoknowwhattalentstheirchildrenmayhaveinthefuture.Theprocessissimple.Everychildprovide/providesasmallsampleofbloodorbodytissue.Thisis/Theseareanalysed.Eachofthechildrenis/aregivenareportshowingtheirpossibletalents.Arecentexamplecitedonthewebsiteisthatoneofthetestingcompaniescompare/comparesthetalentsoftwinsBobbyandBenny.Bobbywasassessedandhistalentswas/wererevealedtobemostlyscientific:a66%chanceofsuccessinchemistryand54%inphysicswas/wereshown.Meanwhile,Benny’shighestscorewas/wereshowntobeinanartssubject:thetestgavehim68%forliterarystudies.Isgenetictestingreliab