Unit1ScienceandScientistsDiscoverUsefulStructures表語從句課件高中英語人教版選擇性

NounClausesPredicativeClausesTheoutdooractivityseemsattractive.Theboyremainspuzzled.Thisisadiligentstudent.Hisjobistoteachchemistry.狀態(tài)類：be感官類：feel/look/sound/taste/smell持續(xù)類：stand/remain/keep/stay變化類：become/get/grow/turn/go/come/run/fall似乎類：seem/appear結(jié)果類：prove/turnout是...可以接表語從句系動詞有：......起來保持...變得...似乎、好像...結(jié)果是...;證明是...可以接表語從句系動詞有：predicative表語是用來說明主語的身份、性質(zhì)、品性、特征和狀態(tài)。Theoutdooractivityseemsattractive.Theboyremainspuzzled.Thisisadiligentstudent.Hisjobistoteachchemistry.WhatdothesentenceshaveincommonintheirstructuresConductingexperimentsishisjob.Conductingexperimentsiswhathedoeseveryday.表語從句是指______________________,緊跟在________之后，對主語進(jìn)行解釋、說明，使主語的內(nèi)容具體化。系動詞在句子中充當(dāng)表語的從句Findthepredicativeclause表從的連接詞謝引引導(dǎo)詞用法從屬連詞that無成分，無意義Whether無成分，意為“是否”連接代詞what,

which,

who,whom,

whose,

wh+ever在從句中充當(dāng)主語，賓語，表語，定語連接副詞how,

when,

where,

whyhowever,whenever,wherever在從句中充當(dāng)狀語其它連接詞 because,asif

,as

though 因為，好像，似乎表語從句的引導(dǎo)詞表從中不用if1.從屬連詞that與whetherthat:在從句中不充當(dāng)句子成分,無實際意義，一般不能省略。Thetruthisthathehasneverbeentothecountryside.whether：起連接作用，意為“是否，究竟，到底”在從句中不充當(dāng)任何成分。Thequestioniswhetherwecanfinishtheexperimentbytomorrowafternoon.2.連接代詞連接代詞what,which,who,whom,whose等除在句中起連接作用外,在從句中還充當(dāng)主語、賓語、表語或定語,本身具有詞義。1.Tomisnolongerwhatheusedtobe.湯姆已不再是過去的他了。2.Thequestioniswhichofusshouldbeinchargeofthecompany.問題是我們中的誰應(yīng)該主管公司。3.Theproblemiswhoissuitablefortheposition.問題是誰適合這個職位。4.Theimportantthingiswhosenameshouldbeputonthetopofthelist.重要的是誰的名字應(yīng)該放在名單的最前面。Whathewantstogetiswhateveryouhave.Youcanbewhoeveryouwanttobe.

連接副詞wherewhenwhyhow除在句中起連接作用外;在從句中還分別充當(dāng)?shù)攸c、時間、原因、方式狀語，本身具有詞義。

1.That'swhereIcan’tagreewithyou.

那就是我不能同意你的地方。

2.Thatwaswhenhewenttothegrocerystore.

那就是他去雜貨店的時候。

3.ThisiswhySaraapologisedtomeaftertheconference.

這就是薩拉會后向我道歉的原因。

4.Thisishowtheyovercamethedifficulties.

他們就是這樣克服困難的。3.連接副詞where可表示抽象意義，意為“…的地方，…點”小試身手Theproblemis___________wecanfinishthetaskornot.Thequestionis________wecangetintouchwithhim.Themostpleasantthingoftherainyseasonis________onecanbe

entirelyfreefromdust.Runningmeansdoingthesamethingforawhile.Thatis________Idid’tenjoyrunning.Thequestionis_________causedtheaccident.Themostimportantthingis___________responsibilityitis.whetherhowthatwhywhatwhose表從的重難點Hefailedintheexam.That's_______hefeltfrustrated.feltfrustrated.failedintheexam.why

連接副詞why做成分(狀語)，有意義，不能省略1.表從中易錯連接詞whybecauseHefeltfrustrated.That's__________hefailedintheexam.becausefeltfrustrated.failedintheexam.

連接副詞1.表從中易錯連接詞whybecausebecause做成分(狀語)，有意義，不能省略Hefailedintheexam.That'swhyhefeltfrustrated.Hefeltfrustrated.That'sbecausehefailedintheexam.結(jié)構(gòu)：因why果；

果because因

語意：各自表達(dá)的側(cè)重點不同

1.表從中易錯連接詞whybecauseIlostthegame.Thereasonwas______Iunderestimatedmycompetitors.Thereason___Ilostthegamewas_____Iunderestimatedmycompetitors.Ilostthegame.Thatwas__________Iunderestimatedmycompetitors.名詞reason作主語時，后面的表語從句表示原因時要用that引導(dǎo)。thatwhythatbecause2.表從中易錯連接詞that;becauseHeistoblame.That'sbecausehepassedaslipofpaperinclass.Heistoblame.Thereasonisthat

hepassedaslipofpaperinclass.Heistoblame.Hepassedaslipofpaperinclass.2.表從中易錯連接詞that;becauseTheyounggirlwithshorthairlooks________shewereaboy.asifasthough這個留短發(fā)的女生看起來像是個男生。與事實不符:表示對現(xiàn)在的虛擬，用一般過去式。3.表從中易錯連接詞asif/asthough李宇春Hetalksasifhe_________(be)tothemoon.hadbeen他說的好像去過月球一樣。與事實不符:表示對過去的虛擬，用過去完成式。3.表從中易錯連接詞asif/asthoughDarkcloudsaregathering.Itseemsasifitisgoingtorain.看起來好像要下雨了。與事實相符:用正常的陳述語氣。3.表從中易錯連接詞asif/asthoughasif/asthough引導(dǎo)的表語從句如果與事實不符，用虛擬語氣;如果是事實或者有發(fā)生的可能性，用陳述語氣1.Itsoundsasifsomeone___knockingatthedoor.(與事實相符)2.Tomlikestotalkbigasifhe______(be)animportantperson.(對現(xiàn)在的虛擬，用一般過去時，be動詞用were)3.Hetalksasifhe_______becomepresidenttomorrow.(對將來的虛擬，用would/could/might+do)4.HetalkedaboutRomeasifhe______