Unit1ScienceandScientistsDiscoverUsefulStructures表语从句课件高中英语人教版选择性(2)2

NounClausesPredicativeClauses表语从句Learningobjectives:1.learnthestructureofpredicativeclause.knowhowtojudgethepredicativeclause.mastertheconjunctionsofpredicativeclause.Hisdiarrhea

seemssevere.Thetwopoliciesarecontradictory.Thisisawaterpump.Hisjobistohandletheproblem.Whatdothesentenceshaveincommonintheirstructures?predicative表语是用来说明主语的身份、性质、品性和特征和状态的，表语常由名词、代词、数词、动词过去分词、动词的-ing形式、副词、介词短语、形容词、不定式和从句等来充当。Hisdiarrheaseems

severe.Thetwopoliciesare

contradictory.This

is

awaterpump.Hisjob

istohandletheproblem.S+V+PConclusion总结：思考：表语从句的结构：表语从句的构成:表语从句是指在复合句中做________的从句。它位于主句的_______之后，对主语进行解释说明，使主语的内容具体化。表语系动词+Thatiswhyit’scalledthepresent!引导词简单句Howtojudgewhetheritisapredicativeclause?系动词状态类：be感官类：feel/look/sound/taste/smell持续类：stand/remain/keep/stay变化类：become/get/grow/turn/go/come/run/fall好像类：seem/appear证明类：prove/turnout是...可以接表语从句系动词有：......起来保持...变得...似乎、好像...结果是...;证明是...可以接表语从句系动词有：记忆口诀：妆感正持续变好是.........起来保持...变得...似乎、好像...表从连词引导词___

___在从句中不作成分that/whether/asif,asthough，because无含义/是否/好像/和...一样___

___在从句中作主语、宾语、表语、定语what,who,whom,which,whatever,whoever,whomever,whicheverwhose___

___在从句中作状语when,where,how,why表语从句中不用if从属连词连接代词连接副词II:Connectivewords从属连词一、从属连词：that&whether

1.Themostimportantthingisthatwefinishthefinaltask.2.Thequestioniswhetherwecanfinishitinsuchashorttime.3.Thereasonwhyhewaslateisthathegotuplate.用法归纳：a.that引导表语从句时，只起______作用，作/不作句子成分，有/没有意义。（一般要求谓语动词：think、believe、suppose等）b.whether引导表语从句时，只起______作用，作/不作句子成分，通常翻译为“______”。注意，引导表语从句时通常不用if。连接√√是否主语是reason时，表语从句不能用because,

只能用that。主语是why引导的主语从句，表语从句不能用because,

只能用that。c.注意这个结构：Thereasonwhy...is

that...连接√特殊用法：用法归纳：表示___________________(advice,suggestion,request,

proposal,demand,order)等名词后面的表语从句要用虚拟语气,即谓语动词用“should

+动词原形”,should可省略。Myadviceisthatyou(should)thinkitoverbeforeyoumakeadecision.Mysuggestionisthatweall___________(take)anactivepartinthecomingsportsmeeting.建议，要求，命令(should)take1)特定名词+系动词＋that+（should）do结构1.Itsoundsasifsomeone___knockingatthedoor.

2.Tomlikestotalkbigasifhe______animportantperson.

(对现在的虚拟，用一般过去时，be动词用were)3.Heopenshismouthasifhe________saysomething.

(对将来的虚拟，用would/could/might+do)4.HetalkedaboutRomeasifhe___________there.(对过去的虚拟，用haddone)(与事实相符，正常语气时态)iswerewouldhadbeen辨析3:

asif/asthough

引导从句的虚拟语气：

若跟现在事实不符：过去式（be动词用were）

若跟将来事实不符：would/could/might+动词原形

若跟过去事实不符：haddone

二、从属连词：asif/thoughbecause引导的表语从句常见于"This/That/It

is/wasbecause..."句型中e.g.Hewassenttothehospital.That'sbecausehewasill.That'sbecause…强调

；That'swhy…

强调

1)Hefailedthemathexam.That’s__________hewastoocareless.2)Hewastoocareless.That’s______hefailedthemathexam.becausewhye.g.Hewas

ill.That'swhyhewassenttothehospital.原因结果三、从属连词：because连接代词who/whom/whose/which/what等

本身具有词义。四、连接代词：连接代词在表语从句中可充当主语、宾语、表语或定语，。“缺什么补什么”：根据从句句意与所缺成分确定连接词如果句子中缺主语，指人用

，指物用

。如缺宾语，指人用

，指物用

。如缺定语用

或

。①Thisis_______myteacherhastaughtme—honesty.②Theproblemis_______cantaketheplaceofJim.③WhatIwanttoknowis_______wordsarehelpful.whowhatwhomwhosewhatwhichwhatwhowhose连接副词五.连接副词:连接副词在表语从句中充当状语，可表时间、地点、原因、方式等，不可省。依据“缺什么补什么”原则确定正确的连词。如缺时间状语用

；地点状语用

。

原因状语用

；方式状语用

。whenwherewhyhowwhen/where/why/how等本身具有词义①

Yourdictionaryisstill_______youputityesterday②

The

question

is

______

he

can

arrive

at

the

hotel.③My

problem

is

_____we

can

finish

such

a

difficult

task

in

three

days.

It's

simply

impossible.④That'swhereIcan’tagreewithyou.

wherewhenhowwhere可表示抽象意义，意为“…的地方，…点”表语从句的引导词从属连词在从句中不作句子成分连接代词在从句中作主语、宾语、表语、定语连接副词在从句中作状语whenwherewhyhowwhat/whateverwhich/whicheverwho/whoeverwhom,whose...that,whetherasif/asthoughbecauseSummarySummary做题步骤：1、分析从句成分，如果缺成分（主宾表），

——what（ever）、who（ever）/whom

注意：whose/which+名词+主语+宾从谓语动词2、如果不缺成分，看主句主语和谓语动词是否是疑问语气，如果不是——that（肯定事实语气）

如果是——whether、why、how、when、where3、意思带入翻译，是否合适流畅。1.Mybeliefis______________Iwillsucceedbyworkinghard.2.Themostpleasantthingoftherainyseasonis________onecanbeentirelyfreefromdust.3.Theproblemis______________wecanfindthemthere.4.Youcanbe__________youwanttobe.5.Thequestionis____________causedtheaccident.6.Themostimportantthingis____________responsibilityitis.7.Thisis____________Idon'tagreewithyou.8.Thequestionis_______________wecangetintouchwithhim.9.Thatis_________Igotwetthrough.

whetherthatthat【即学即练】使用合适的关系词补全句子。whoeverwhatwhosewhywhether/howwhy【高考真题我不怕】1.［安徽］Fromspace,theearthlooksblue.Thisis_________aboutseventy-onepercentofits

surfaceiscoveredbywater.2.［四川］Grandmapointedtothehospitalandsaid,"That’s

__________Iwasborn．"3.［北京］Thebestmomentforthefootballstarwas_________hescoredthewinninggoal.4.[江苏]

Byboatistheonlywaytogethere,whichis

wearrived.5.[北京]

Thisis

myfatherhastaughtme—toalwaysfacedifficultiesandhopeforthebest.6.[新高考1卷]Theamazingthingaboutthespringis________

thecolderthetemperaturegets,thehotterthespring!becausewherewhenhowwhatthat【语法填空】Thefactis1.

Wendywasafamouswriter，butnooneknew2.

shecamefromandthequestionremained3._________shewasbornin1961.4.

theydidknowwas5.