Unit5WorkingtheLandUsinglanguage課件-高中英語人教版選擇性2

SubjectClause主語從句Unit5DiscoverUsefulStructure1.什么是主語？2.什么是主語從句？3.主語從句的核心考點(diǎn)有哪些？Whatisthesubject?(什么是主語？）IlikeEnglish.Thetrainleft.主語：

句子所要說明的人或事物，

一般位于

。句首Findthesubject.（找出主語）Englishismyfavoritesubject.Toseeistobelieve.Smokingisbadforhealth.Whathehassaidistrue.定義：

在句子中擔(dān)當(dāng)主語的是一個(gè)從句，

這個(gè)從句就叫做主語從句。（名詞）（不定式）（動(dòng)名詞）（從句）主語從句Findthesubjectclause.（找出主語從句）ThatYuanlovehiscareerissuretous.Whetheritwaspossibletodevelopahybridplantwasamatterofgreatdebate.Whatconcernedhimmostwasthatfamersoftenhadpoorharvests.Tip：

先找謂語Furtherunderstandingofthesubjectclause.

（理解主語從句）1.主語從句必須有連接詞。他通過了考試使老師很高興。S+V+O+OC（主謂賓賓補(bǔ)）Hepassedtheexammadetheteacherhappy.That

hepassedtheexammadetheteacherhappy.Furtherunderstandingofthesubjectclause.

（理解主語從句）——連接詞?無詞義?不充當(dāng)成分，一般不能省略（尤其在句首時(shí)）1.thatFurtherunderstandingofthesubjectclause.

（理解主語從句）——連接詞Ifwewillsucceedisstillaquestion.?有詞義：“是否”?whether引導(dǎo)的主語從句可放于句首、句末?if引導(dǎo)的主語從句不能謂語句首2.whether(if)Whetherwewillsucceedisstillaquestion.Furtherunderstandingofthesubjectclause.

（理解主語從句）——連接詞?有詞義3.“6W＋1H”及其衍生詞

引導(dǎo)詞功能從屬連詞that,whether,if從句中不充當(dāng)成分連接代詞what(ever),which(ever),who(ever),whom(ever),whose從句中做主語，賓語，表語或定語連接副詞when,why,where,how從句中作狀語

what什么……的東西/事情所……的Furtherunderstandingofthesubjectclause.

（理解主語從句）——連接詞?有詞義3.“6W＋1H”及其衍生詞1.

youtoldmejustnowwasreallyasurprise.2.

breaksthelawshouldbepunished.WhatWhoeverPractice——【活學(xué)活用1】(1)

hewonfirstprizeintheEnglishcontestsurprisedallofus.(2)

willtaketheplaceofMrLiasournewheadmasterhasn'tbeendecided.(3)

weunderstandthingshasalottodowithwhatwefeel.(4)Perhaps

isthemostimportanthereisthatthesemeasurescanbechanged.(5)Everyyear,

growsthebiggestpumnpkinwillwinaprizeinthefestival.ThatWhoHowwhatwhoeverFurtherunderstandingofthesubjectclause.

（理解主語從句）——陳述語氣2.主語從句用陳述句語氣。他什么時(shí)候來還不清楚。S+V+P（主系表）isnotclear.Practice找出錯(cuò)誤，并給出理由weshallThatWhetherIt主語從句后置Thathedoesn’tunderstandEnglishisobvious.形式主語頭重腳輕isobviousthathedoesn’tunderstandEnglish.It√真正主語定義：

一般來說主語從句都是放在

，但有時(shí)為了使句子

保持平衡

，避免“

”，常用

作

，從而把主語從句放在

，尤其是連詞that引導(dǎo)的主語從句常用于此種句式中。句首頭重腳輕it形式主語后面主語從句后置用it作形式主語的常見句型：Itiscertainthat…Itispossiblethat…Itisobviousthat…Itistruethat…肯定……很可能……很明顯……的確……1.It+be+adj.+that從句Itisnecessary/important/naturalthat…【從句謂語動(dòng)詞用

（should）+動(dòng)詞原形】用it作形式主語的常見句型：1.It+be+adj.+that從句importantnothaveastupidteammateItisimportantthat

we(should)nothaveastupidteammate.用it作形式主語的常見句型：2.It+be+n.+that從句可惜的是……令人吃驚的是……事實(shí)是…………是常識(shí)apity/shameasurpriseafact用it作形式主語的常見句型：2.It+be+n.+that從句雨天要穿雨鞋是常識(shí)。用it作形式主語的常見句型：3.It+be+過去分詞+that從句Itissaidthat…Itisknowntoallthat…Itisreportedthat…Itisbelievedthat…據(jù)說……眾所周知……據(jù)報(bào)道……據(jù)相信……；人們相信……Itissuggestedthat…建議……【從句謂語動(dòng)詞用

（should）+動(dòng)詞原形】用it作形式主語的常見句型：MalaysiaAirlinesFlightMH370眾所周知馬航MH370失蹤了。Itisknowntoallthat

MalaysiaAirlinesFlightMH370wasmissing.用it作形式主語的常見句型：4.It+不及物動(dòng)詞+that從句Ithappenedthat…碰巧……Itoccurredtomethat…我突然想起……Practice——【活學(xué)活用2】(1)Thatweneedtogetacertainamountofwatereachdayissoimportant.

It'ssoimportant

we

needtogetacertainamountofwatereach

day.(2)Whethertheywillsellthehouse

hasn'tbeendecidedyet.

theywillsellthehouse.(3)Thatlighttravelsinstraightlinesisknowntousall.

lighttravelsinstraightlines.

(4)Thathesuddenlyfellillyesterdaymorningsurprisedus.

hesuddenlyfellillyesterdaymorning.

thatIthasn’tbeendecidedyetwhetherItisknowntousallthatItsurprisedusthat主語從句的注意要點(diǎn)?

單個(gè)的主語從句作主語時(shí)，謂語動(dòng)詞單數(shù)形式。Whenandwherethemeetingwillbegin

(have)notbeendecided.Whatcausedtheaccidentandwhowasresponsibleforit

(be)amystery.?

由兩個(gè)或多個(gè)連接詞引導(dǎo)一個(gè)主語從句，謂語動(dòng)詞用單數(shù)。?

如果由and連接兩個(gè)或兩個(gè)以上的主語從句作主語時(shí)，謂語動(dòng)詞用復(fù)數(shù)。hasare主語從句的注意要點(diǎn)例2：1.Whatheneedsisthatbook.2.Whatheneedsaresomebook?what引導(dǎo)的主語從句，可根據(jù)表語決定主句動(dòng)詞的單復(fù)數(shù)形式。1.Whattheymakesinthisfactory

(be)TVsets.2.Whathe’dlikemostforabirthdaypresent

(be)acamema.areis練習(xí)Practice他是不是我的孩子仍然是個(gè)問題。Whetherheismychild高啟強(qiáng)如何變得成功取決于他的勤奮。remainsaquestion.dependsonhishardwork.Practice這個(gè)男孩所做的事讓老師很生氣。Whattheboydidmadetheteacherangry.任何見到這個(gè)女孩的人都被她吸引。Whoeverseesthegirlisattractedbyher.1.什么是主語？2.什么是主語從句？3.主語從句的核心考點(diǎn)有哪些？句子所要說明的人或事物，一般位于句首。

在句子中擔(dān)當(dāng)主語的是一個(gè)從句，這個(gè)從句就叫做主語從