外研版（2019） 选择性必修第二册 Unit 5 A delicate World Using language课件

Unit5ADelicateWorld

Grammar+Practise

ItasanemptyobbjectWatchandThinkWhatwewilllearnaboutitfromthefollowing1.NovisitorwouldthinkitsurprisingthattheislandisaUNESCOWorldHeritageSite.2.Expertsfeltitnecessarytocomeupwithaplantoremovealltherabitsfromthesland.3.Thisincidentmadeitclearthattherat,mouseandrabbitproblemneededsolvingonceandforall.4.Thisinterventionisalong,much-delayedendingtoasad,butwehumansownittotheislandtogiveitahappyending.以上例句中的it作形式宾语，句1和句3的真正宾语是后面that从句，句2和句4指代后面的不定时短语。it常代替由不定式短语、动名词短语或从句表示的真正主语，作形式主语，而将真正的主语后置it常代替由不定式短语、动名词短语或从句表示的真正主语，作形式主语，而将真正的主语后置常代替由不定式短语、动名词短语或从句表示的真正主语，作形式主语，而将真正的主语后置。常代替由不定式短语、动名词短语或从句表示的真正主语，作形式主语，而it常代替由不定式短语、动名词短语或从句表示的真正主语，作形式主语，而将真正的主语后置。将真正的主语后置。

it常代替由不定式短语、动名词短语或从句表示的真正宾语，作形式宾语，而将真正的宾语后置。

一、it作为形式宾语主要分为以下几种情况。1）动词（make,feel,find,consider,think等）＋it＋形容词或名词＋（of/forsb.)+不定式1.Ifeelitanhonortobeinvitedtomakeaspeechhere.2.Theyconsidereditimprotanttohaveworkdoneontime.2)动词（make,feel,find,consider,think等）＋it+nouse/nogood/useless/worthone’swhile/awasteof.../worthwhile...+动名词doing...3.Doyouthinkitanyusearguingwithhimaboutit?4.Ibelieveitawasteofmoneysmoking.3)动词＋介词＋it＋that从句常见的这类动词+介词短语有：oweto;dependon,relyon,seeto,takeitforgranted（对……相当然）insiston等。edress.Ittookmeayeartofinishit.1.Heowesittohisdoctors;surethatheisquitewellagain.2.Manystudentstakeitforgrantedthatparentsshoulddoallforthem.3.Maryinsistedonitthatshewasinnocent.4)动词＋it＋when/if从句.常见动词用appreciate,like,dislaike,hate,prefer,enjoy等。1.Shehatesitwhenhebraggedthathewasthemostimportant.2.Iwouldappreciateitifyoucouldtakemysuggestionsintoconsideration.5）动词+it+过去分词+从句。Theyhaven’tmadeitknownwheretheyaretoholdtheconference.二、it作宾语常见习惯用语

1.makeit

Despitemanydifficulties,weevetuallymadeittotheremotevillage.2.That’sit

That’sit.Forme,that’senough.3.GuessitWhichwillbeourclassteacher?MrWangorMrsLi?Guessit.4.Gotit

No,you'vegotitallwrong.She'shiswife.N猜猜you'vegotitallwrong.She'shiswife.成功，搞定就就这样明白，理解5.WorthitEveniftheadvantagesaresmall,theyarestillworthit6.Don’tmentionitDon'tmentionit.It'stheleastIcandoforafriend.Bytheway,youcandomeafavorinreturn.7.Forgetit1---Sorry,butihadn’tmeanttohurtyou.----Forgetit.---Mr.Zhang,CanIhandinmyhomeworktomorrow?---Forgetit.Don’tputofftilltomorrowthingsyoucanfininishtoday.--没没关系，常用于sorry的回答或拒绝对方的请求轻就ho’sthatatthedoor?---____isthemilkman.zhzh值得做的不客气，常用于谢谢的回答四__________________________________一、Rewritetheunderlinedpartsusingitasanemptyobject.Thered-earedslider,aspeciesoffreshwaterturtle,isnativetotheSouthernUnitedStatesandNorthernMexico.Duetoitscuteappearance,manypeoplethinkkeepingthisturtleasapetisagoodidea.

manypeoplethinkitagoodideatokeepthisturtleasapet.

RRecentyearshaveseenmoreandmorepetslidersescapingorbeingreleasedfromhomes,andsomeownersbelievetoreleasethemintothewildisnobigissue.

believeitnobigissuetoreleasethemintothewildThThesedays,peoplehavefoundtoreleasetheseturtlesintothewildisathreattootherspecies.peoplehavefounditathreattootherspeciestoreleasetheseturtlesintothewild_

Expertsconsiderownerskeepingtheirpetsinanenclosedareaimportant,andanyoneunabletokeeptheirpetsshouldtakethemtoanappropriateanimalshelter._________________________ExpertsconsideritimportantforownerstokeeptheirpetsinanenclosedareaActivity2:LookatthepicturesoftheSaihanbaNationalForestParkanddescribeitschangesusingitasanemptyobjectwhereappropriate.Youmayrefertothewordsandexpressionsinthetableforhelp.1960spresentdaynouns/adjectivestodo/thatbreakthroughimpossiblelikelyunrealistic…growinvestigateplanttreestransform…Ithinkitabreakthroughtotransformadesertintoaforest...Ibelieveitlikelythatmorevolunteerswillhelpplantmoretreesaroundthepark.Ifinditimpossibletoinvestigateallthelivingspeciesintheparkatpresent.Ifeelitunrealisticforthelocalpeopletogrowriceandwheatforgrainindustry.二、语法填空1.I’dappreciate____ifyoucouldletmeknowinadvancewhetherornotyouwillcome.2.---TomorrowisChristmas.Canwehaveaholiday?----Forget_____.WeareChineseandwon’tcelebrateit.3.Ithink____wasfunnywatchingmyselfonTV.4.Newtechnologyhasmade____easiertoenjoylifethaneverbefore.5.Youmaydependonit_____theywilllookafteryourdaughterwhenyouareaway.6.Iwouldappreciateitverymuch____youcouldgivemesomesuggestions.7.Willyouseeto_____thatmychildrenaretakengoodcareofwhileiamaway?单击此处添加标题8.ithink_____necessarythatwetakeplentyofboiledwatereveryday.三、完成句子1.首先，我认为在国外交朋友是非常重要的。Firstofall,I_______________________________abroad.2.苏珊明确向我表明，她想为自己谋一份新生活。

Susan_________________________shewishedtomakeanewlifeforherself.3.如果你能让我提前知道你是否能来，我会很感激的。

_____________________youcouldletmeknowinadvancewhetherornotyouwillcome.4.我认为和他争论没有用的。I_________________________________him.5.我么都想当然的认为米莱能成功。Weall______________________________Milecansucceed.单击此处添加标题三、把下列各句改写成it形式宾语的句子。1.Weallthoughtthathemissedoutonthechancetogotocollegebecauseofhisillhealthwasapity.2.Iowethatihavegainedanumberofskillsandknowledgewhichithinkwillhelpmeinthefuturetoyou.3.Hedoesnotconsiderspendingalotoftimeoncosplayisworthwhile.4.Sometimeshefoundtofallasleepatnightwasveryhard,sohewenttoseethedoctor.5.Becauseofnewsservices,newspaperspossiblyoffertheirreadersnewsfromaroundtheworld.6.Weallthoughtwhetherwecouldraiseenoughmoneyfortheprojectwasaquestion.7.Isupposethereisnoneedtotalkaboutthisproblemwiththematonce.8.WhenyouwerewatchingyourfavoriteTVprogramandsomeonecameintotheroomandjustshutitoffwhithoutaskingyou,howwouldyoulike?

Key一、1.it2.it3.it4.it5.that6.if7it8.it二、1.thinkitveryimportanttomakemorefriends.2.madeitcleartomethat3.I’dappreciateitif4.thinkitnousearguingwith5.takeitforgrantedthat三、1.Weallthoughtitapitythatmissedoutonth