3 UNIT 3  Section Ⅲ Discovering Useful Structures-(新教材)高中英语人教版必修2

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SectionⅢDiscoveringUsefulStructures现在完成时的被动语态1.(教材P28)Much_has_been_written(write)aboutthewondersoftheW

orldWideWeb.2.(教材P28)ButtheInternethas_done(do)muchmoreforpeoplethansimplymakelifemoreconvenient.3.(教材P28)Manype

oplehave_been_helped(help)bytheclub.4.(教材P28)Shenolongerfeelslonely,andhercompany_has_become(become)quitesuccess

ful.5.(教材P32)TodayIthoughtI’dblogaboutaquestionthathas_been_asked(ask)manytimes—howdoyoustaysafeonlineandavoidbadexperiencesontheInternet?一、

现在完成时的被动语态的结构肯定式主语+have/hasbeendone...否定式主语+have/hasnotbeendone...一般疑问式Have/Has+主语+beendone...?特殊疑问式疑问词

+have/has+主语+beendone...?◆Hehasbeenselectedtotakepartinthesportsmeeting.他已被挑选出来参加运动会。◆Theinkhasnotbeenremovedfromhisovercoat.墨迹还没有从他外套上去

掉。◆Hasthedateforthenextmeetingbeendecided?下次会议的日期已确定了吗?◆Howlonghasthebatterynotbeenchanged?电池多久没有更换了?【即时演练1】—

—句型转换Thechildrenhavealreadybeentoldthegoodnews.①将上面的句子变为否定句。The_children_haven’t_been_told_the_good_news_yet.②将上面的句子变为一般疑问句。Have_the_ch

ildren_been_told_the_good_news_yet?③对上面句子中的Thechildren进行提问。Who_has_been_told_the_good_news_yet?二、现在完成时的被动语态的用法1.现在完成时的被动语态同它的主动语态一样,强调过去的动作对现在造

成的影响或结果,通常与already,yet,just,never,recently等副词连用。◆Themachinehasalreadybeenrepaired.机器已经修好了。2.表示一个被动的动作或状态开始于过去,持续到现在,并可能持续下去,常与for或since引导的时间状语连

用,或用于“Howlong...?”句型中。◆Financialproblemsofthecompanyhavebeendiscussedfornearlytwohours.公司的财务问题已被讨论了近两个小时了。◆

Howlonghasthisfilmbeenshown?这部电影已放映多长时间了?3.用在时间或条件状语从句中,表示将来某时已完成的动作,即用现在完成时的被动语态代替将来完成时的被动语态。◆Youshouldn’tleaveschoolbefo

reyourhomeworkhasbeenfinished.在你的作业没完成之前你不应该离开学校。常与现在完成时连用的时间状语有:already已经yet已经recently/lately最近sincethen从那时起eversince自那以来ever曾经sofar迄今为止bynow到现在为

止foralongtime很长一段时间inrecentyears在最近几年里in/during/overthepast/lastyears在过去的几年里【即时演练2】(1)用现在完成时的被动语态改写句子①Jack’sbosshasalwayspraisedh

imforhisdevotiontowork.→Jackhas_always_been_praisedbyhisbossforhisdevotiontowork.②Theyhavefoundagoodplac

etobuildatempleinthevillage.→Agoodplacehas_been_foundtobuildatempleinthevillage.③Wehaven’tyetdecidedhowtosolvethatdifficulttechnolog

icalproblem.→Howtosolvethatdifficulttechnologicalproblemhasn’t_been_decidedyet.(2)完成句子④当我的家庭作业完成时我就回家。Iw

illgohomewhenmyhomeworkhas_been_finished.⑤纸币已被使用了1000多年了。Papermoneyhas_been_usedforoveronethousandyears.(1)只带有一个宾语的动词变为被动语态时,将主动语态

的宾语变为被动语态的主语。◆Hisbosshasalreadypunishedhim.→Hehasalreadybeenpunished(byhisboss).(2)带有双宾语的动词,如give,send,brin

g,take,teach,show,tell,make,sing,write,read,sell,buy,pay,lend,pass,promise等,变为被动语态时,一般将间接宾语变为被动语态的主语,若将直接宾语变为被动

语态的主语时,间接宾语前面要用相应的介词。◆Hegavethelittlegirlanapple.→Thelittlegirlwasgivenanapple(byhim).→Anapplewasgiventothelittlegirl(byhim).【即时演练3】——将下面句子变

为被动语态①Ihaveaskedhertohelpyou.→She_has_been_asked_to_help_you.②Wehaveplantedmanytreesonthehillinthela

st5years.→Many_trees_have__been_planted_on_the_hill_in_the_last_5_years.③Hehassentmeane-mail.→I_have_been_sent_an_e-mail.→An_e-mail_has_be

en_sent_to_me.Ⅰ单句语法填空1.Agreatmanymachineshave_been_produced(produce)bythefactorysincethetechnologicalrevolution.2.Greatchangeshave_taken(take)pl

aceinmyhometownandalotoffactorieshave_been_set(set)upinthepasttenyears.3.Inthelastfewyears,thousandsoffilmshave_been_produced(produce

)allovertheworld.4.Uptonow,alotofhigh-risebuildingshave_been_built(build)inourcity.5.Overthepastthreeyears,morethan$10millionhas_b

een_spent(spend)carryingouttheproject.6.Therobotshave_been_used(use)tohelphumansdosomedangerousworksincethelate1990s.7.TheEnglishsonghas_been_sung(s

ing)formanyyears,butwestilllikeit.8.ProfessorYanghas_been_invited(invite)tothefilmfestivaltwicesofar.9.OvertimeIhav

e_been_changed(change)quitealot.10.Ithas_been_used(use)inofficesandhomessincethe1970s.Ⅱ句型转换1.Wehavesentsomerocketstospacetoexplo

retheMoonandMars.Somerocketshave_been_senttospacebyustoexploretheMoonandMars.2.RoberthasboughtaniPhoneusinghiso

wnmoney.AniPhonehas_been_boughtbyRobertusinghisownmoney.3.Thefamouscompanyhasgiventhecomputersawaytothosehighschools.Thecomputershave

_been_given_awaytothosehighschoolsbythefamouscompany.4.Thelocalgovernmenthaschosentheuniversitytoorganisethetrainingcourse.Theuniversity

has_been_chosenbythelocalgovernmenttoorganisethetrainingcourse.5.Theyhaven’ttoldmethatthemeetingwillbeputoffuntilnextFriday.Ihaven’t_be

en_toldthatthemeetingwillbeputoffuntilnextFriday.6.Peopleusebambooinmanydifferentwaysforthousandsofyears.Ba

mboohas_been_usedinmanydifferentwaysforthousandsofyears.Ⅰ单句语法填空1.Morethan50,000yuanhas_been_raised(raise)forthepoor

familysincethegroupwasfounded.2.China’sspaceprogramhas_been_developed(develop)greatlysinceitsentitsfirstastronauttospacein2003.3.Computer

science,withwhichrapidprogresshas_been_made(make)inrecentyears,playsaveryimportantpartinourdailylife.4.Uptonow,morethanfivenewspecieshave

_been_found(find)onthisislandbyresearchers.5.BlackFridayhas_been_regarded(regard)asthebeginningoftheholidayshoppingseasonforyears.6.Sincetheear

ly1990s,alotofclinicshave_been_founded(found)inthiscountrytotreatpoorpeopleforfree.7.Thebalancebetweenthecityandthecountryhas_been_broken(break)by

theindustrialdevelopmentoverthepasttwocenturies.8.Someeffortswere_made(make)toimprovetheairqualityinthecitylastwinter.9.Ov

erthepastthreeyears,thepaintingshave_been_taken(take)tomorethan20museumsintheworld.10.Forcenturies,th

eancientlanguagehas_been_passed(pass)onfromonegenerationtoanother.Ⅱ阅读理解Smartphones,tabletsandsmartwatchesarebanned(禁止)

atschoolforallchildrenunder15inFrance.Underthebanstudentsarenotabletousetheirphonesatallduringschoolho

urs,includingmealbreaks.“Ithinkit’sagoodthing.Schoolisnotaboutbeingonyourphone,”ParismumMarie-CarolineMadeleinetoldAFP.

“It’shardwithkids.Youcan’tcontrolwhattheyseeandthat’soneofthethingsthatworriesmeasaparent.”ThereisnolawlikethisinAu

stralia,butsomeAustralianschoolshavebannedphones.McKinnonSecondarySchoolinVictoriaintroducedatotalbaninFebruaryandPrincipalPitsaBinnionsaid

thishasbeenasuccess.McKinnonstudentsstillhaveaChromebooktouseineveryclassforday-to-daylearningbutthey’renotallowedtousesocialmedia(媒

体).MsBinnionsaidatfirst“teacherscheeredandstudentsmoaned(抱怨),”butnowthey’reseeingthepositives(优势).“Theycomet

oschoolandthey’renotallowedtousephonesatallduringtheschoolday,includinglunchbreaks,”shesaid.“It’sbeenwonderfulintermsofstudentscommunicatingwithe

achotheratlunchtimeandnotlookingattheirscreen,”shesaid.MsBinnionalsoleadsbyexampleanddoesn’tusehermo

bilephoneinschool.“Ithinkanyonecandoitifwe’vedoneit.”Noteveryoneagreeswiththebans.WesternSydneyUniversitytechnologyresearcherDr.JoanneOrlandowrot

einonlinemagazineTheConversationearlierthisyearthatAustraliashouldnotbanphonesinschoolsbecauseit’simportanttoeducatekidstoliveintheagetheya

reraisedin.“Agoodeducationforstudentstodayisknowinghowtousetechnologytolearn,communicateandworkwithideas,”shewrote.“Banningstudentsfrom

usingsmartphonesisa1950sresponsetoa2018state-of-play.”【解题导语】本文是一篇议论文。文章讨论了澳大利亚学校是否该禁止学生使用手机。1.WhydidMadeleinewelcometheban?A.Schoolisforstudyin

g.B.Kidsbehavebadlynowadays.C.Teachersfindithardtocontrolkids.D.Herkidsdependtoomuchonphones.A解析:推理判断题。由第二段中的Schoolisnotaboutbeingonyo

urphone可知,Madeleine认为学校不是玩手机的地方,言外之意就是学校是学习的地方。2.WhatcanwelearnaboutthebaninMcKinnonSecondarySchool?A.Someteacherswereagainstit

atfirst.B.Studentscannowseethegoodoftheban.C.Studentscanusetheirphonesatlunchbreaks.D.Teachershavestoppedusingphonesa

tschoolaswell.B解析:推理判断题。由第四段中的thishasbeenasuccess和第五段中的nowthey’reseeingthepositives可知,学生们起初抱怨,但现在都看到了这一禁令的好处。3.Whatdoestheunderlinedword“Chromebook”i

nParagraph5probablyreferto?A.Abook.B.Anotebook.C.Alearningwebsite.D.Akindofcomputer.D解析:词义猜测题。由第一段中的Smartphones,tabletsandsmart

watches和第五段中的forday-to-daylearningbutthey’renotallowedtousesocialmedia(媒体)可知,画线词应该指的是一种电脑。学生们学习可以用,但是不允许使用社交网络。4.Wha

tdoesDr.JoanneOrlandothinkofbanningphonesinschools?A.Itwilldisconnectparentsandkids.B.Itwillcausekidst

ocommunicateless.C.Itwillpreventkidsbeingtech-minded.D.Itwillmakeeducationgoback60years.C解析:推理判断题。由倒数第一、二段可知,Dr.JoanneOrlando认为现在是科技时代,就应该

让学生与时代接轨,禁止学生使用手机不符合这个时代的特征。Ⅲ七选五Studieshaveshownthatabout30%ofthechildreninAmericaaged6to19areeitheroverweightorobe

se(肥胖的).1.________Besides,thesituationinthecountriesoftheEuropeanUnionissimilar.Ifyouaregainingweight,itdoesnotalwaysmeanthatyouarebecomingobes

e.Afterall,childrenandyoungadultsneednutrientstogrow.2.________However,ifyoubeginputtingontoomuchweight,youmaybeontheroadt

oobesity.3.________Genesareoneofthefactorsthatcanleadtoit.Genesdeterminehowyourbodystoresfoodandhowwellitturnsfo

odintoenergy.Yourgenescomefromyourparents,sooverweightparentsaremorelikelytohaveoverweightchildren.Althou

ghyoumayhavegoodgenes,youcanstillbecomeobese.Infact,thelackofphysicalexercisecanalsocauseobesity.4.________Forexample,comparedwithgoin

goutsideanddoingsomephysicalactivities,childrennowprefertositstillforhoursinfrontofcomputersorTVs.Manyo

fuseatuptofourmealsadaythankstoexcessive(过度的)snacking.Andwhenwehaveasnack,wemaydon’tconsidereatingfruits.Butthisisnotalwaysthechildren’sfault.5

.________A.Fastfoodisanotherreasonforobesity.B.Butwhatmaycausechildhoodobesity?C.ThatisalmostoneoutofthreeyoungAmericans.D.Thisincreasestheirchan

cesofbecomingoverweight.E.Soitisnormalforthemtogainweightastimegoeson.F.Nowadays,ourfreetimeactivitieshavegreat

lychanged.G.Afterall,therearemanystoresofferingallkindsofsnacksnearschools.【解题导语】本文是一篇说明文。文章主要陈述了造成青少年肥胖的几点因素。1.C解析:此空设于段中,与

前文存在逻辑上的指代关系。本句中的That指代的是前文中提到的数据30%ofthechildren。2.E解析:此空设于段中,与前文之间存在逻辑上的因果关系。前文陈述:毕竟,孩子和青少年需要营养来成长,此句进一

步论述,所以对于他们来说,随着时间的流逝,体重增长是正常的。3.B解析:此空设于段首,是本段的主题句。本段后面都是围绕此句展开说明基因是导致肥胖的一个原因。4.F解析:此空设于段中,与后文存在逻辑上的解释关系。此句说如今,人们的自由活动已经在很大程度上改变了,后面就这一点举例说明。5.G解

析:此空设于段尾,对前一句进行解释。前一句说孩子们爱吃零食,这并不总是他们的错,此句进一步解释说明:毕竟,在学校周围有很多提供各种各样零食的商店。Ⅳ语法填空Itookashortflighttheother

day.Thepassengersontheplane1.____________(offer)anin-flightsnack—asandwichwhichcontaineddairyandmeat.SinceI2.____________(feel

)totallyfullatthattimeoftheday,Iputitinmybag.Ihopedlaterthatday,Imaycomeacrossahomelessperson,to3.______

______thissandwichmaymeanhisonlymeal.Well,Ididcomeacrossahomelessmanlaterthatday.Thatmanwaswith4.____________(he)dogBella.WhenIgavehim5.__________

__sandwich,Inoticedhissmileashewasopeningthesandwich.Hesharedit6.____________Bella.Theystartedtoeatq

uickly.7.____________(see)howhungryhewas,IemptiedmybagofalltreatsandfoodIhad.Ialsowentandboughtalargecoffe

eforhim.He8.____________(sincere)thankedmeandcontinuedtohavehis“big”meal.Kindnessissuchasimplethingforustodo.However,for9.___________

_(receive),itcanbelife-changing.Asasayinggoes,“Tenmenbanded(聚集)togetherinlovecandowhattenthousandseparatelywouldfailin.”Ifeachofusdoesone

kindthingatatime,thestrength10.____________(build)upwillbesurprising.【解题导语】本文是一篇夹叙夹议文。本文作者通过讲述自己将飞机餐送给无家可归的人的故事,号召我们一起做善事。1.wereoffere

d解析:考查动词的时态及语态。passengers和offer之间是被动关系,故用被动语态;再根据上下文的语境可知,此处表示过去的动作,故用一般过去时的被动语态。2.felt解析:考查动词的时态。此处表示过去的动作,因此用动词的一般过去时。3.whom解析:考查关

系代词。此处为“介词+关系代词”引导的宾语从句,且指代人,故用whom。4.his解析:考查代词。因为后面跟名词dog,所以用形容词性物主代词,故用his。5.the解析:考查冠词。前面已经提到过sandwich,此处再次提到,故用定冠词the。6.with解

析:考查介词。sharesth.withsb.意为:与某人分享某物,故填with。7.Seeing解析:考查非谓语动词。句子的逻辑主语与see之间是主动关系,故用现在分词做状语。8.sincerely解析:考查副词。修饰动词thanked,用副词sincerely,意为“真诚地”。9.rece

ivers解析:考查名词。句意为:但是对于接受者来说,这可能是改变一生的行为。因为receiver是可数名词,故填receivers。10.built解析:考查非谓语动词。strength是被积累起来的,故用built作后置定语

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