Unit+1+Science+and+Scientists+Discover+Useful+Structures+表语从句课件 高中英语人教版（2019）选择性必修第二册

表语从句1.Tounderstandthestructureandmeaningofpredicativeclause.2.Tomastertheconjunctionofpredicativeclauseingrammar.3.Tomakesentencesusingpredicativeclauseinwriting.Leadin1.Onetheorywasthatbadaircausedthedisease.2.Thequestionremainedwhenthecholerawouldbedestroyed.3.Thepumpwatercarriedcholeragerms.ThatwaswhySnowhadthehandleofthepumpremoved.表语从句放在系动词之后，充当句中的表语，说明主语是什么或者怎么样。“主语+系动词+表语从句”。回顾：系动词的分类状态类：be动词，seem,appear,keep,remain,stay…感观类：look,smell,taste,sound,feel…变化类：become,get,turn,grow,fall,come,go…Linkingverbsreviewconcept类别引导词用法从属连词that只起连接作用，不作句子成分,

无实际意义whether只起连接作用,

不作句子成分，意为“是否”，不能用if替换连接代词who,

what,

whom,

whose,

which,whoever,whatever,whichever在从句中作主语、宾语、表语等表语从句的连接词1.Theproblemis______canhandlethetrouble.2.Tomisnolonger______heusedtobe.3._____mattersmostis_____hecareslittleforcelebrityormoney.4.

The

question

is_____of

us

should

go.

whowhatWhatthatwhich类别引导词用法连接副词when,

where,why,

how等在从句中作状语其他连词because主句主语一般不用reasonas

if/as

though表语从句表示的情况发生的可能性较小时，常用虚拟语气表语从句的连接词1.Thatwas______wecampedlasttime.2.Hewasillagain.Thisis_____hewaslateforclass.3.Ididn’tphoneher,andthat’s_______Igotangry

withher.4.Thelasttimewehadfunwas_____wewenttoDisneyland.wherewhybecausewhenkeypoints1.主语为reason时，表语从句连接词用that。

eg:Thereasonforsuchaseriousaccidentwasthat

thedriverwastoocarelessanddranktoomuch.2.主句主语为advice,suggestion,proposal,request,order,idea等

表示建议，命令时，从句谓语动词用“should+动词原形”。

eg:Mysuggestionisthatwe(should)startearlytomorrow.3.asif/asthough引导表语从句，与客观事实不符时，用虚拟

语气。

eg:Thethicksmogcoveredthewholecity.Itlookedasifagreatblackblankethadbeenthrownoverit.

Itsoundsasifsomeoneisknockingatthedoor.

厚重的烟雾覆盖着整座城市，好像一个巨大的黑色毯子扔到它的上面。1.Recently,anovelcoronavirus,_______hasgreatharmtopeople’health,hasattackedtheworld.2._____impressesthecustomersmostis_____thequalityoftheclothesisreliable.3.Sosevereisthesituation_____somevictimsevenchoosetoescapefromthereality.4.Hefailed.Thatis____hedidn’tworkhard.ExtendedtrainingwhichWhatthatthatbecause5.The

reason

why

I

was

sad

was______he

didn’t

understand

me.6.He

went

to

the

hospital

for

a

medical

examination.

And

that

is_______he

was

absent

from

the

meeting.7.The

first

time

we

met

each

other

was_______we

studied

in

that

school.8.The

problem

is_______is

really

fit

for

the

hard

job.thatwhywhenwho1.我的建议是学生在学习英语时应该多尝试几种方法。(multiple)2.好消息是我们的寒假就要来了。（approach）3.尽可能多地练习才是秘密所在。4.这次旅行的亮点是你可以想起快乐的童年时光。(highlight)MysuggestionisthatstudentsshouldtrymultiplewayswhenlearningEnglish.Thegoodnewsisthatourwintervacationisapproaching.Topracticeasmuchaspossibleiswherethesecretlies.The