Unit5ADelicateWorldGrammar课件高二英语选择性

Unit5Usinglanguage-GrammarAdelicateworldNovisitorwouldthinkitsurprisingthatb.NovisitorwouldthinkthattheislandbeingaUNESCOWorldHeritageSiteissurprising.ExpertsfeltitnecessaryExpertsfelttocomeupwithaplantoremovealltherabbitsfromtheislandwasnecessary.group2:Whatdoes“it”refertoinsentences(a)and(c)?2.Whatisthedifferencebetweenthesentencesineachgroup?

theislandisaUNESCOWorldHeritageSite.

tocomeupwithaplantoremovealltherabbitsfromtheisland.Whentheobjectofasentenceisathat-clause(b)oraninfinitive(d),wesometimesuse“it”asanemptyobjectandputtherealobjectlatertokeepbalance.ObserveandsayP531『』group1:Nowlookformoresentenceswiththisstructureinthereadingpassage,andsummariseitsuseinyourownwords.HaveALk1.Thisincidentmadeitclearthattherat,mouseandrabbitproblemneededsolvingonceandforall.2.Thisinterventionisalong,much-delayedendingtoasadstory,butwehumansoweittotheislandtogiveitahappyending.1.Thisincidentmade________clearthattherat,mouseandrabbitproblemneededsolvingonceandforall.2.Thisinterventionisalong,much-delayedendingtoasadstory,butwehumansowe______totheislandtogiveitahappyending.ititFocuson基本概念

用法及常见情况

特殊情况ItasanemptyobjectIt作形式宾语it作形式宾语用法及常见情况归纳(1)Ifinditquitenecessarytomakesomechanges.

我觉得做些改变十分必要。(2)1thinkitwrongdoingitthisway.

我认为这样做是错误的。(3)Wehavemadeitclearthatshehasnothingtodowiththecase.

我们已经说的很清楚，她与这个案子无关。当不定式、动名词或从句在某个句子中作宾语时，为了保持句子的结构平衡，常用it作为形式宾语，而将真正的宾语放到句子后部去。it代表不定式

it代表动名词

it代表连接代词或副词引导的从句it作形式宾语的几种特殊情况1.动词+it+that从句，常见于take,have,put等动词之后。Itakeit

thathewillfinishthetaskbyhimself.我认为他能自己完成这项任务。2.动词+it+when/if从句，常见于appreciate,enjoy,like,prefer等动词之后。Wereallyappreciateit

ifyoucoulddousafavour.如果您能帮助我们，我们会很感激。Hemadeit

knowntoeveryonethathewasright.

他让每个人都明白他是对的。3.动词+it+介词短语+that从句，常见于oweittosb,takeitforgranted等结构中。Weoweit

toyouthatwearestillalive.多亏有你，我们还活着。5.动词+it+V-ed+从句4.动词+介词+it+that从句，常见于lookto,dependon,insiston,stickto,answerfor等结构中。Sheinsistedon

itthatshewasinnocent.她坚持说自己是无辜的。manypeoplethinkitagoodideatokeepthisturtleasapet

believeitnobigissuetoreleasethemintothewildpeoplehavefounditathreattootherspeciestoreleasetheseturtlesintothewildExpertsconsideritimportantforownerstokeeptheirpetsinanenclosedareaRewritetheunderlinedpartsusingitasanemptyobject.P70

Checkyouranswers:2LookatthepicturesoftheSaihanbaNationalForestParkanddescribeitschangesusingit

asanemptyobjectwhereappropriate.1960sPresentdayP713Possibleanswer:Ithinkitabreakthroughtotransformadesertintoaforest.Inthe1960s,Saihanbawasadesert,whichmadeit

impossibletogrowplants.Besides,Ifeelitunrealistic

toplanttreeswithoutwater.Butinfact,someworkersinvestigated

itandfounditlikelytogrowcropsandplanttrees.Then,theyfeltittheirdutytorecreatetheforestofSaihanba.Asaresult,Saihanbahasbecomeabeautifulforestpark.Describehowaplaceyouknowhaschangedusingitasanemptyobjectwhereappropriate.P7141.Theydiscoveredthattheupperandlowerfrontteethofancienthumanadultswerealigned(对齐),making_____hard____________(produce)labiodentals(唇齿音),whichareformedbytouchingthelowerliptotheupperteeth.Later,ourjawschangedtoanoverbitestructure,making______easier____________(produce)suchsounds. (2022新高考I卷阅读理解D)2.Thatwaswhynoneofthechildrenthought______unusual______Davidhaddecidedtojointhecross-countryteam.(2022新高考I卷读后续写)直击高考itittoproducetoproduceitthat3.GenerationXerswithyoungfamilies,likemywifeandI,canstillfind_______convenient________(have)ahomephoneratherthanprovidingamobilephoneforeveryfamilymember. (2021全国乙卷阅读理解B)4.TheengineersattheMassachusettsInstituteofTechnology(MIT)havetaken____astepfurther__________(change)theactualcompositionofplantsinordertogetthemtoperformdiverse,evenunusualfunctions.(2020全国卷I阅读理解D)5.AnotherhabitIformedearlywasbeingoutdoors.Myparentsmade______apointfortheirtwokids__________(spend)timeoutside,nomattertheweatherorseason.(2020浙江卷七选五)直击高考itittospendchangingittohaveit作形式宾语用法及常见情况当不定式、动名词或从句在某个句子中作宾语时，为了保持句子的结构平衡，常用it作为形式宾语，而将真正的宾语放到句子后部去。特殊情况动词+it+that从句，常见于take,have,put等动词之后。动词+it+when/if从句，常见于appreciate,enjoy,like,prefer等动词之后。动词+it+介词短语+that从句，常见于oweittosb,takeitforgranted等结构中。动词+it+V-ed+从句动词+介词+it+that从句,lookto,dependon,insiston,stickto,answerfor等结构中。I.选词填空。1.Shethoughtitnogood___________(toworry/

worrying)abouthim.2.Ithinkitnecessaryforyou________(totell/telling)thetruthtotheboss.3.Thepublicmayfinditsurprising_________(whether/that)the7-year-oldgirlcanspeakmorethan3languages.4.Theyfounditpleasant________

(that/why)theyhadworkedwiththosescientistsfromChina.5.Ihateit__________(why/when)someonecomesinwithoutknockingatthedoor.worryingtotell

thatthatwhenII.用适当的内容或括号中所给单词的适当形式填空。1.Theyfelt_________difficulttofinishtheworkinsuchashorttime.2.I’dpreferit_______Ididn’thavetodosomuchwork.3.Somepeoplemaythink_______awasteofmoneyrepairingtheancientbuilding.4.Theyhavemadeitarule______________(notsmoke)intheroom.5.Weallconsideritimportant_________(put)theoryintopractice.itnottosmokeifittoputIII.用适当的内容或括号中所给单词的适当形式完成短文。

Somestudentsmaytakeitforgrantedthattheirparentsshouldsendthemtoschool,