Unit4AglimpseofthefutureUsingLanguage课件高中英语选择性

Unit4Aglimpseofthefuture

Usinglanguage【版本：新外研册别：选择性必修三】GrammarIIVVocabularybuildingIIListening&speakingIIIHomeworkcontentsIGrammarLookatthesentencesandanswerthequestions.Whyis50percentsingularinsentence(a)butpluralinsentence(c)?Whatarethesubjectsinsentences(b)and(d)?Aretheysingularorplural?a…50percentofmytimewas

spentresearchingnewrestaurants.b

Everyrecommendationshegivesmeisgreat...c…almost50percentofUSjobsare

atriskfromautomationinthenext20years.d…noneofusispreparedforthechallengesofAI.P41a…50percentofmytimewas

spentresearchingnewrestaurants.c…almost50percentofUSjobsare

atriskfromautomationinthenext20years.

Q1.Whyis50percentsingularinsentence(a)butpluralinsentence(c)?Becauseinsentence(a),thepart“50percent”isfollowedbytheuncountablenoun“time”,whileinsentence(c),thepart“50percent”isfollowedbythecountablenoun“job”initspluralform.Lookatthesentencesandanswerthequestions.P41b

Everyrecommendationshegivesmeisgreat...d…noneofusispreparedforthechallengesofAI.

Q2.Whatarethesubjectsinsentences(b)and(d)?Aretheysingularorplural?Insentence(b),thepart“Everyrecommendation”isthesubject.Insentence(d),thepart“noneofus”isthesubject.Botharesingular.Lookatthesentencesandanswerthequestions.P41Task1:Nowlookformoresentencesfollowingthisruleinthereadingpassage,andsummarisetheuseofsubject-verbagreementinyourownwords.Nearlyeveryjobispotentiallyatriskinthelongrun.(P39)2.OnethingIthinkweallagreeon,though,isthatsaying“MyAIdidit!”won’tbeanyexcuseforillegalorimmoralbehaviour.(P39)主谓一致是指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主谓一致用法归纳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；例1：Aboutone-thirdofthebooks

inthelibraryaredonatedbystudentswhograduatedfromtheschool.

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。

解析：book是可数名词，在句中是复数形式，并且在句中着重于书的数量而不是将书视为整体，因此“三分之一的书”表达的意义是复数概念，谓语动词用are。Subject-verbagreement例2：Around10percentoftheforestis

destroyedeachyear.

每年大约有10%的森林被毁。解析：本句中的

theforest为可数名词的单数形式，泛指森林，因此“10%的森林”视作一个整体，谓语动词用is。例3：Alargenumberofpeoplehaveappliedforthejob.

许多人都申请了这份工作。解析：本句中的

people为集体名词，表示复数概念，因此谓语动词用have。1)Fiftypercentofthestudentsinourschool____girls.2)Three-fourthsofthesurfaceoftheearth____sea.

3)Oversixtypercentofthecity_____destroyedinthewar.are

iswas1)主语本身为可数名词复数

students，故用are。2)主语为surface“表面”，且句中“地球表面的四分之三”为整体概念，故用is。3)主语为city，在此为可数名词单数，故用was。Practice解析Subject-verbagreementSubject-verbagreement主谓一致用法归纳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主谓一致用法归纳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。例：Everymeanshasbeentriedoutwithoutmuchresult.

所有方法都试过了，却没有什么效果。解析：means是“方法”的意思，everymeans强调“每一种方法”，故谓语动词用单数形式。1)Eachboy______aprize.2)Manyofus_____gonethroughregulartraining.3)Everypossibleapproach____beentried,butinvain.4)Bothoftheinstruments____notpreciseones.5)Something___goingtohappen,andnobodycanstopitfromhappening.Practicehavehasaregetsis主谓一致用法归纳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。Subject-verbagreementSubject-verbagreement主谓一致用法归纳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，如：例1：Alliswellthatendswell.结果好一切都好。例2：Allareeagertoreachanagreement.大家都急于达成一项协议。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：例1：

Noneofusseemtohavethoughtofit.似乎我们全都没有想到这一点。

（此处强调全体，全部都没有想到。）例2：

Noneofushasgotacamera.(none=notasingleone)我们都没有照相机。

（此处强调每一个个体，没有一个有照相机的。）Subject-verbagreement主谓一致用法归纳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：例1：Nobodyhasgotaticket.谁都没有票。例2：Nothingwasavailable.

没有可用的。Task2:Completethepassagebychoosingthesingularorpluralform.(P41)Nowadays,therearemanycompaniesofferingservicesinthedomainofgenetictestingforchildren’stalents.Alargenumberofclientshave/hasbeenattractedtoit.Theyareparents,eagertoknowwhattalentstheirchildrenmayhaveinthefuture,eventhoughtheymaystillbeinkindergarten.Theprocessissimple.Everychildprovide/providesasmallsampleofbloodorbodytissue.Thisis/Theseareanalysed.Eachofthechildrenis/aregivenareportshowingtheirpossibletalents.Arecentexamplecitedonthewebsiteisthatoneofthetestingcompaniescompare/comparesthetalentsoftwinsBobbyandBenny.Bobbywasassessedandhistalentswas/wererevealedtobemostlyscientific:a66%chanceofsuccessinchemistryand54%inphysicswas/wereshown.Meanwhile,Benny’shighestscorewas/wereshowntobeinanartssubject:thetestgavehim68%forliterarystudies.Isgenetictestingreliable?Somescientistssaythatmoreevidenceis/areneeded.Task3:Completethedescriptionaccordingtothecharts,payingattentiontosubject-verbagreement.(P41)FUTURELastweek,weaskedyoutodesignyouridealplanetforpeopleonEarthtoliveoninthe22ndcentury.Wehavereceivedover500entriesandhavebeenamazedbyyourimaginations!Here’soneofthedesigns.Threequartersofthesurfaceismadeupofland,…DesertTask3:Completethedescriptionaccordingtothecharts,payingattentiontosubject-verbagreement.(P41)SurfaceSeaLandLandForestArablelandResidentialareaPeopleOriginalresidentsFromEarthFromotherplanetsTask3:Completethedescriptionaccordingtothecharts,payingattentiontosubject-verbagreement.(P41)Threequartersofthesurfaceismadeupofland,whiletherestissea,covering25%ofthesurface.Halfofthelandiscoveredwithtrees.Residentialareaandarablelandbothaccountforthesameproportion,20%ofthetotalland.Therestisdesert,covering10%ofthetotalland.Therearethreekindsofpeople.Fiftypercentofthepeopleareoriginalresidents,30%arefromEarthand20%arefromotherplanets.

IIListening&speakingTimetravelcouldresultinaparadox—aneventthatcontradictsitself.Forexample,ifapersontravelledbackintimeandpreventedanevent,thateventwouldneverhavehappened;therewouldthereforebenoreasonforthepersontotravelbackintimetopreventit.Task1:Listentotheconversationandchooseitsmainidea. 1.Timetravelisdangerous. 2.Talkingtopeopleinthepastcanchangethefuture. 3.Anythingyousayordointhepastcanaffectthefuture. 4.Timetravelwithinyourownlifetimeshouldbeavoided.P42Task2:Listenagainandcompletethetable.RULE11____________________Atouristwantsto2

_______________________________________________________________.because3_______________________.Theguidetoldher4

____________.Don’ttalktoanybody.tellher8-year-oldselftobuyshewantstobecomerichnottodothatsharesincompaniesthatareprofitabletodayRULE25_____________________________Theguidesaidthat6________________________________________________________________________breakingsomethingcouldalsocauseaparadoxandchangeyourpaththroughlife.Becarefulnottobreakanything.P42Task2:Listenagainandcompletethetable.RULE37____________________________________________________Atouristwantsto8_______________________.Theguidetoldhimnottobecause9

_________________________________________________________________________________.someoneinthepast.giveapresenttohisfatherdoesn’tbelongtothattimemayhaveanimpactonNevergiveanythingfromourtimetosomeoneandcauseaparadoxanythingthatTask3:Completetheboxeswiththeexpressionsfromtheinterview.(P42)ExpressingexcitementAskingforconfirmation

Amazing!Wow!Ican’twaitto...So,whatyou’resayingisthat...Howabout...Imaginehowexcited...That’sOk,isn’tit?Areyouserious?Letmegetthisstraight.Youmeanthat...It’llbeexcitingenoughto...2.Wow!1.Amazing!3.Ican’twaitto…4.Imaginehowexcited…5.It’llbeexcitingenoughto…4.Areyouserious?1.So,whatyou’resayingisthat2.Howabout…3.That’sOK,isn’tit?5.Letmegetthisstraight.Youmeanthat…IIIVocabularybuildingTask1:Readthepassageandputtheexpressionsinboldintotheboxes.Besidestimetravel,wehavemuchtolookforwardtointhefuture,thankstoadvancesintechnology.Oneareathatislikelytochangedramaticallywithinourlifetimesismedicalcare.AlthoughIwouldn’tbankonpatientsfeelingconfidentaboutseeingarobotdoctoranytimesoon,I’msurethatAIdoctorsareonthehorizon.Ithinkit’salsofairtosaythatwecangetourhopesupwhenitcomestofindingcuresforseriousdiseases,suchascancer.Ireckonthatnanorobotsthatcaneliminatecancerouscellsarejustaroundthecorner.Someoftheseideasmaysoundfaraheadoftheirtime,butI’msurethey’reboundtohappensoonerorlater!bank

on：relyon依靠；依赖beboundtohappen：一定会发生1.bankon2.getourhopesup3.boundtohappen1.withinourlifetimes2.anytimesoon3.onthehorizon4.aroundthecorner5.faraheadoftheirtimeTask1:Readthepassageandputtheexpressionsinboldintotheboxes.P43Task2:CompletethepassagewiththeexpressionsinTask1.(P43)Whoknowsinwhatexcitingwaystransportwillchange1_________________?Trainsthattravelatth