Unit5RevealingnatureUsinglanguage课件高中英语选择性

GrammarUnit5Revealingnature

UsingLanguage1.Insentence(a),whichactionhappenedfirst,“suspected”or“evolvedfromacommonancestor”?2.Insentence(b),whichactionhappenedfirst,“refusedtobelieve”or“evolvedfromlowerformsoflife”?3.Whatdoesthestructurehaddoneindicate?Activity1.Lookatthesentencesfromthereadingpassageandanswerthequestions.aDarwinsuspectedthatthefincheshadevolvedfromacommonancestor,...bManypeoplerefusedtobelievethatlivingthings,includinghumans,hadevolved

fromlowerformsoflife.Insentence(a),“evolvedfromacommon

ancestor”happenedfirst.Insentence(b),“evolvedfromlowerformsof

life”happenedfirst.Itindicatestheactionhappenedbeforeacertain

pastaction.UsinglanguageaDarwinsuspectedthatthefincheshadevolvedfromacommonancestor,...bManypeoplerefusedtobelievethatlivingthings,includinghumans,hadevolved

fromlowerformsoflife.Ineachsentence,boththetwoactionshappenedinthepast,ActionBhappenedfirst,ActionAhappenedlater.Inthissituation,pastperfectisusedtodescribeActionBandsimplepastisusedtodescribeActionA.SummaryActionAActionBUsinglanguageActivity1.Lookatthesentencesfromthereadingpassageandanswerthequestions.pastperfectsimplepastWhatispastperfecttense?Definition表示在过去某一时间或动作之前已经发生或完成的动作。肯定句：

被动：否定句：一般疑问句：特殊疑问句：eg：She

said

she

had

graduated

fromuniversity.

eg.Ididn’tknowthewaytoJohn’shousebecauseIhadn’tbeentherebefore.eg.Theworkhadbeenfinishedbyhim

beforelastFriday.haddonehadnotdone=hadn’tdonehadbeendone

Had+主语+done+其他成分特殊疑问词+had+主语+done+其他成分PastPerfectFormsby+过去的时间点

到...为止bytheendof+过去的时间点bythetime+过去的时间点bythen到那时before+过去的时间点

在...之前eg.Ihadfinishedmyhomeworkbeforesupper.eg.Bytheendoflastmonth,wehadfinishedhalfoftheproject.

时间状语1.Itwas＋一段时间＋since从句(从句用过去完成时)自从...以来，已经多久了eg.Itwasthreeyearssincehehadjoinedthearmy.

基本用法

翻译句子_______________________________________________________我离开北京至少有3个月了。ItwasatleastthreemonthssinceIhadleftBeijing.2.Itwasthe+序数词+time＋(that)从句

(从句用过去完成时)这是某人第几次做某事eg.It

wasthefirsttimethatIhadvisitedtheGreatWall.

基本用法

翻译句子_______________________________________________________这是他第三次犯了同样的错误。Itwasthethirdtimethathehadmadethesamemistake.3.在“________________________________”句型中，主句用___________，从句用______________。译为“一......就......”eg.

NosoonerhadIreachedhomethanitbegantorain.

eg.Hardlyhadhelefthisofficewhenthetelephonerang.hardly...when/

nosooner...than/

scarcely...when过去完成时一般过去时

基本用法

翻译句子___________________________________________________我刚到学校门口，铃就响了。HardlyhadIreachedtheschoolgatewhenthebellrang.4.want,hope,mean打算,plan,intend打算,expect希望,suppose以为,think以为

等动词的过去完成时可以用来表示过去未曾实现的愿望/打算/计划，意为“本想要/计划/以为”。eg.Ihadintendedtomeethimattheairport,butIhadanimportantmeetingtoattend.

eg.Ihadhopedtoseeheragain.

基本用法

补全句子______________________________butcouldn’tgetthereintime.他们本来想要帮忙的，但未能及时赶到这儿。TheyhadwantedtohelpExerciseWe____________(paint)thehousebeforewemovedin.Paul_______(go)outwithJaneafterhehad

madeaphonecall.3)Tomsaidhe__________(read)thebooktwice.4)他说自从1989年以来他就在那家工厂工作。Hesaid____________________________since1989.5)我认为我一星期前就把信寄出去了。Ithought_____________________aweekbefore昨晚九点之前我已看完这本小说了。

______________________________bynineo'clocklastnight.hadpainted

wenthadreadhehadworkedinthatfactoryIhadsenttheletterIhadfinishedreadingthenovel

Thetrain____________whenIgottothestation.(start)I____________thestationbeforesixo'clock.(reach)Bythetimewearrived,everyone____________medicalcare.(receive)I_____hardly_____homewhentherainpoureddown.(get)5.Shesaidshe__________youyesterday.(see)6.Iwishedthathe___________hisinterview.(pass)7.I____________(intend)tomeethimattheairport,butIhadanimportantmeetingtoattend.hadstartedhadreachedhadreceivedhadgothadseenhadpassedPracticehadintendedCompletetheparagraphswiththeinformationfromthegivensentences.

a.Naturaldisastersledtofoodshortagesinthe1960s.

b.YuanLongpingbegantodoresearchonhybridrice.

c.YuanLongpingdevelopedabettertypeofrice.YuanLongping_____________todoresearchonhyaridricebecausenaturaldisasters______________foodshortagesinthe1960s.Intheend,he____________abettertypeofrice.beganhadledtodeveloped1Completetheparagraphswiththeinformationfromthegivensentences.GregorMendelchosetostudypea豌豆plantsbecausetheircharacteristics特征/性wereeasytocontrol控制.GregorMendelmadeimportantdiscoveriesaboutgenetics.GregorMendeldiedin1884GregorMendel___________studypeaplantsbecausetheircharacteristicswereeasytocontrol.Bythetimeofhisdeathin1894,he___________________discoveriesaboutgenetics.chosetohadmadeimportant2Completetheonlineencyclopediaentrywiththecorrectformofthewordsinthebox.LonesomeGeorgewasthelastPintaIslandtortoise平塔岛象龟.Hediedin2012.AfterGeorge’sdeath死亡,thePintaIslandtortoisewasdeclared宣布

extinct灭绝的.

LonesomeGeorge百科全书条目Completetheonlineencyclopediaentrywiththecorrectformofthewordsinthebox.

compete竞争，争夺 decline下降，减少 eatlive introduce引进 arriveTheextinction灭绝ofthePintaIslandtortoiseisblamedon归咎于humans.Beforehumans__________ontheisland,thespecies___________inisolation独立and___________theplantsthatnaturallygrewthere.Georgewasdiscovered发现manyyearsaftertheirarrival,andbythenhumans______________newspeciesthat_________forthefoodthetortoisesate.Aftergoatsinparticular尤其hadbeenbroughttotheisland,thePintaIslandtortoisepopulation种群____________.Eventually最终,onlyGeorgeremained保留.arrivedhadlivedhadeatenhadintroducedcompeteddeclined

1.___________________（上周日，我本打算出去散步，但是在早上就开始下雨,intend）.SoIwenttothemovieswithmybestfriend.2.___________________________________（当我起床的时候，我的狗已经把桌子上我的早餐都吃了。bythetime）.ThenIwenttoseethefilm,hungry,3.______________________（但是当我到电影院的时候，电影已经放映20分钟了。beon放映）.4._____________________________（这是我第一次和我最好的朋友一起看电影。）anditwasthemostinterestingmoviethatIhadwatched!5._____________________________（我一走出电影院就遇见了我的同班同学们hardly......when.....）Wehaddinnerandtalkedhappily.6.___________________________________（但是当我要付钱的时候，我发现我的钱包和手机被偷了）Whatanunluckyday!Microwriting(Mary’sjournal)1.LastSunday,Ihadintendedtogoforawalk,butitbegantorainearlyinthemorning.2.BythetimeIgotup,mydoghadeatenallmybreakfastonthetable.3.butwhenIarrivedatthecinema,thefilmhadbeenonfor20minutes.4.ItwasthefirsttimethatIhadseenafilmwithmybestfriend.5.IhadhardlygotoutofthecinemawhenImetsomeclassmates.6.ButwhenIwasgoingtopay,Ifoundmywalletandmobilephonehadbeenstolen.

VocabularybuildingCompletetheparagraphswiththecorrectformofthewordsandexpressionsinthebox.(P55)The

GalapagosIslands

are

renowned

worldwidefortheiruniquebiodiversity.

The

Giant

Tortoise

Reserve

onSanta

Cruz

1_________several

species

ofgiant

tortoise

that2___________theGalapagosIslands.The

island

is

also

home

tothe

Charles

DarwinResearch

Station,

where

3________studies

arecarriedout.ancestor

scientific