Book5Unit4UsingLanguageit做形式主語ItasanemptysubjectLookatthesentencesandanswerthequestions.Sentences(a)and(c)arefromthereadingpassage.Whatisthedifferencebetweenthesentencesineachgroup?Lookatthesentencesandanswerthequestions.Sentences(a)and(c)arefromthereadingpassage.Sentencesa/c:Itis+adj+todosth.Sentencesb/d:todosth+is+adjIt做形式主語句型Todo做主語句型Summary(總結(jié))(1)Butitisvitalnottotakeanychances.(2)...itwasmydutyasadoctortogothereandoffermyhelp.(3)Itisimportant

torememberthatEboladoesn'trespectnationalboundaries.(4)Itissoinspiring

tohavecolleagueslikeWilton,MaisyandAlfonso,nottomentionalltheothersIhaveworkedwith.(5)...itisabsolutelyessentialforusalltocollaboratetocreateaglobalcommunitywithasharedfutureofpeaceandprosperity.語法初體驗(yàn)句型結(jié)構(gòu)It's+adj/n+(forsb/ofsb)+todosth...Makesentencesusingthestructure!語法精講解1.It+be+形容詞(clear;obvious;true;natural;surprising;good;wonderful;funny;possible;likely;probable;certain;fortunate)+that/how/wh-從句。_______________________shepassedthedifficultexam.真讓人驚訝,她居然通過了這次有難度的考試。ItwassurprisingthatThatshepassedthedifficultexamwassurprising.__________________________hetoldalie.很明顯,他撒謊了。Itisclear/obvious/evidentthatThathetoldalieisclear/obvious/evident.2.It+be+過去分詞(said;reported;believed;thought;expected;announced;confirmed)+that/how/wh-從句。例如：語法精講解Itisreportedthat_______________________.據(jù)報(bào)道明天會(huì)下雨。itwillraintomorrowThatitwillraintomorrowisreported.Itissaidthat_______________________.據(jù)說他已經(jīng)出國留學(xué)了。hehasstudiedabroadThathehasstudiedabroadissaid.3.It+be+名詞(apity/nowonder/anhonour/agoodidea/afact/goodnews)+that/how/wh-從句。語法精講解____________________youdidn'tpasstheexam.難怪你沒有通過考試。Itisnowonderthat____________________Icangive/deliveraspeechhere.很榮幸在這里發(fā)表演講。ItisagreathonorthatThatyoudidn'tpasstheexamisnowonder.ThatIcangive/deliveraspeechhereisagreathonor.__________________shehascheatedintheexam.結(jié)果證明她考試作弊。4.It+不及物動(dòng)詞(語)(seem;happen;appear;look;occur;turnout)+that/how/wh-從句。語法精講解__________________theywereoutthatday.碰巧那天他們不在家。Ithappenedthat__________________sheisanhoneststudent.似乎她是一名誠實(shí)的學(xué)生。ItseemsthatItturnedoutthat__________________shehadneverstudiedhard.我突然想起她從來不努力學(xué)習(xí)。Itoccurredtomethat語法精講解5.It+及物動(dòng)詞(worry/shock)+that/how/wh-從句。例如:________________hefailedinthisexam.他沒有通過這次考試,令我震驚。Itshocksmethat________________mysondidn'tstudyhard.我兒子不努力學(xué)習(xí),令我擔(dān)憂。ItworriesmethatThathefailedinthisexamshocksme.Thatmysondidn'tstudyhardworriesme.溫馨提示使用suggested;ordered;required;advised;requested;insisted等表示建議、要求、命令等含義的詞時(shí),從句應(yīng)該用虛擬語氣，其謂語動(dòng)詞的結(jié)構(gòu)為“should十動(dòng)詞原形”should可省略。例如:It'ssuggestedthatstudents_____________________bythemselves.人們建議學(xué)生自己鋪床。(should)maketheirbedIt'srequired/requestedthatstudents_________________________.根據(jù)要求學(xué)生要遵守學(xué)校規(guī)定。(should)obeytheschoolrules即學(xué)即用語法填空(1)Is_________necessarytotakeoffourshoeswhenweenterthelab?(2)Itisuncertain________hecancometoJenny’sbirthdaypartyornot.(3)Itwasclear________theyhadnodesireforpeace.itwhetherthat真題體驗(yàn)1.DesignerJenniferAndersonadmits________tookherawhiletocomearoundtotheopinionthatusingnutria(河貍鼠)furforhercreationsismorallyacceptable.(2022年全國Ⅱ卷，閱讀理解C篇改編）2._________isnotaproblemwhetherwecanwinthebattle;it'sjustamatteroftime.(2023年江蘇卷)3.________soundscrazytotalkaboutguilt-freefur---unlessyouunderstandthatthenutria(河貍鼠)aredestroyingvastwetlandseveryyear.(2023年全國Ⅱ卷，閱讀理解C改編)itItItRevisionofItasanemptysubject1.學(xué)習(xí)英語對我們是有用的。2.網(wǎng)上購物是十分便利的。3.保護(hù)環(huán)境對人類來說是重要的。4.據(jù)說他是一名誠實(shí)的學(xué)生。5.似乎很多動(dòng)植物處于危險(xiǎn)之中。It'susefulforustolearnEnglish./It'susefulthatwelearnEnglish.It'sconvenienttogoshoppingonline.It'sconvenientthatpeoplegoshoppingonline.It'simportantformankindtoprotecttheenvironment.It'simportantthatmankindshouldprotecttheenvironment.It'ssaidthatheisanhoneststudent.Itseemsthatmanyanimalsandplantsareatrisk/indanger.語法專項(xiàng)訓(xùn)練I.語法填空1.Itiseveryone'sduty__________(obey)thelaw.2.Itisawasteoftime__________(watch)TV.3.__________wasclearenoughwhatshemeant.4.Itisawonder__________heneverlosesinthegame！5.Does__________matterifhecan'tfinishthejobontime?toobeywatchingItthatit記憶：It'sawasteoftime/nogood/nouse/nopleasuredoing

sthⅡ.完成句子1.可惜工程師沒能來。________________thattheengineercouldn'tcome.2.據(jù)報(bào)道，在那次公共汽車事故中，超過二十人受傷。________________thatmorethantwentypeoplewereinjuredinthatbusaccident.3.周末之前他務(wù)必要來這里。_______________________thatheshouldbeherebytheweekend.4.鯨不是魚，這是一個(gè)常識。__________________________thatthewhaleisnotafish.5.你有必要掌握電腦技能。________________thatyoushouldmasterthecomputerskills.語法專項(xiàng)訓(xùn)練ItwasapityItisreportedIt'sessential/necessaryItiscommonsense/knowledgeItisnecessaryActivity2ItisseenasacceptablebyfilmstudiostocastwhiteactorsasAsiancharacters.Rewritetheunderlinedpartsusingitasanemptysubject.ItisnolongerquitesodifficultforwomenandminoritiestogetrolesinAmericanfilmandtelevision.ItisnowamorerealistichopeforminorityactorstobecomealeadingactorinHollywood.ItismorecommonthanbeforeforwomentowriteanddirectHollywoodfilms.Itisacommonthingforpeoplefromdifferentcountriestoworkinthesamecompany.Describethecityusingtheinformationprovidedanditasanemptysubject.Beijingtodayismulticultural.Itisnotasurprisingthingforstudentstoseedifferentskincoloursinthesameclass.Itispossibleforpeopletohearmanydifferentlanguagesanddialects.Itiseasyforpeopletofindprod