外研版英語選擇性必修三Unit2-Grammar-Predicative-clauses課件

Unit2

Alife’sworkPeriodFour

Grammar—Predicativeclauses達(dá)標(biāo)檢測(cè)當(dāng)堂檢測(cè)基礎(chǔ)達(dá)標(biāo)演練語法導(dǎo)學(xué)感悟規(guī)律重點(diǎn)難點(diǎn)剖析內(nèi)容索引感知以下句子，補(bǔ)全方框下的小題1.Myideaisthathisplanshouldbecarriedoutimmediately.2.Whathewantstoknowiswhetherheshouldstartanewsetofcomputationsornot.3.Itlooksasifthecomingautumnharvestwillbeevenbetterthanthelastone.4.Thequestioniswhoistherightpersonfortheposition.5.WhatIwanttoknowiswhenshe’llbeback.6.Thesuggestionisthatwe(should)cometohisassistanceatonce.語法感知語法導(dǎo)學(xué)感悟規(guī)律重點(diǎn)難點(diǎn)剖析1.由句1,2可知，

，

可引導(dǎo)表語從句，連詞在從句中

擔(dān)任成分。2.由句3可知，asif/though也可引導(dǎo)

從句。3.根據(jù)句4，連接代詞引導(dǎo)表語從句時(shí)要在從句中

。4.由句5可知，連接副詞引導(dǎo)表語從句時(shí)往往在從句中擔(dān)任

。5.根據(jù)句6，suggestion等后的表語從句中要用

，即謂語動(dòng)詞用“

”。thatwhether不擔(dān)任成分狀語表語虛擬語氣(should)do在句中充當(dāng)表語的從句稱為表語從句。引導(dǎo)表語從句的有連接詞asif/though，because，that，whether；連接代詞what，which，who，whom，whose；連接副詞when，where，why，how。表語從句主要位于系動(dòng)詞be之后，有時(shí)可用在look，seem，taste等之后。語法精析一、由連接詞引導(dǎo)的表語從句1.that引導(dǎo)的表語從句(that在從句中不擔(dān)任成分)Yourgreatestfaultisthatyouarecareless.你最大的毛病是粗心。2.whether引導(dǎo)的表語從句(whether在從句中不擔(dān)任成分)Thepointiswhetherweoughttorecommendhim.問題是我們是否應(yīng)該推薦他。[溫馨提示]一般不用if引導(dǎo)表語從句。3.asif/though引導(dǎo)的表語從句，從句中的謂語動(dòng)詞可用陳述語氣，也可用虛擬語氣Themeattastesasifithasalreadygonebad.這肉嘗起來似乎已經(jīng)壞了。Helooksasifhewereingreatpain.他看上去很痛苦。4.why，because引導(dǎo)的表語從句Thisisbecausetheearthistravelingaroundthesun.這是因?yàn)榈厍蚶@著太陽轉(zhuǎn)。Thatiswhytodayover40%ofCaliforniansspeakSpanishasafirstorsecondlanguage.那就是今天有超過40%的加利福尼亞人把西班牙語作為第一或第二語言的原因。[溫馨提示]

why和because引導(dǎo)的表語從句的區(qū)別That’swhy...意為“那是……的原因”，強(qiáng)調(diào)結(jié)果That’sbecause...意為“那是因?yàn)椤?，?qiáng)調(diào)原因二、由連接代詞引導(dǎo)的表語從句

連接代詞引導(dǎo)表語從句時(shí)，除連接主從句外，還在從句中擔(dān)任一個(gè)成分，可作主語、賓語、表語或定語。Theturningoftheearthonitsownaxisiswhatmakesthechangefromdaytonight.地球的自轉(zhuǎn)是晝夜交替的原因。(主語)Thequestioniswhichoftheunitswechoosetobethefundamentalone.問題是我們選哪一個(gè)作基本單位。(賓語)Timesaren’twhattheywere.時(shí)代不同了。(表語)WhatIwanttoknowiswhosebagwasstolen.我想知道誰的包被偷了。(定語)三、連接副詞引導(dǎo)的表語從句連接副詞除引導(dǎo)表語從句外，還在從句中充當(dāng)狀語，可表時(shí)間、地點(diǎn)、原因、方式等。Thisiswhereourbasicinterestlies.這就是我們的根本利益所在。(地點(diǎn))That’swhywedecidedtoputthemeetingoff.那就是我們決定推遲會(huì)議的原因。(原因)Thequestionishowthepeoplecanfindaneffectivewaytostorethesun’sheat.問題是人們?nèi)绾尾拍苷业揭环N有效的方法來儲(chǔ)存太陽的熱量。(方式)四、表語從句與虛擬語氣當(dāng)主語中含有suggestion，advice，order，demand，requirement，request等時(shí)，表語從句的謂語動(dòng)詞用“(should)do”。Thedoctor’sadvicewasthatyou(should)giveupsmoking.醫(yī)生建議你戒煙。Ourdemandisthatyou(should)finishtheworkasquicklyaspossible.我們的要求是你們盡快完成這項(xiàng)工作。返回Ⅰ.單句語法填空達(dá)標(biāo)檢測(cè)當(dāng)堂檢測(cè)基礎(chǔ)達(dá)標(biāo)演練1.Myquestionis

willmarryapoormanlikeme.2.Theproblemis

experimentweshoulddofirst.3.Rawmaterialis

wearebadlyinneedof.4.WhatIwanttoknowis

watchitis.5.WhatIadviseisthatyou

(go)atonce.6.Ibrokeherfavouriteglass.That’s

shegotangrywithme.7.Hehasheartdisease.Thatis

hehasbeensmokingtoomuch.whowhichwhatwhose(should)gowhybecause8.Myquestionis

IshallgetintouchwithhimwhenIarriveinBeijing.9.WhatIwasuncertainaboutwas

wecouldovercomethedifficultiesallbyourselves.10.Oneoftheadvantagesofelectricpoweris

itcanbetransmittedoverlongdistancesveryeasily.howwhetherthatⅡ.完成句子11.Theorderwasthatthecompany

atonce.命令連隊(duì)立刻過河。12.That’s

inlearningEnglish.這就是他在學(xué)習(xí)英語中戰(zhàn)勝所有困難的方法。13.Theyremainunchanged.Theyare

.他們一點(diǎn)沒變。他們還和從前一樣。14.Shehadastomachache.

sheatesolittle.她胃疼，所以她只吃了一點(diǎn)兒東西。15.Whenapencilispartlyinaglass