Discoveringusefulstructures（表语从句）UNIT1SCIENCEANDSCIENTISTS

contentsⅠⅡHomeworkIIIIVObserveandDiscoverPracticeandApplyLeadin

ⅠLeadin

①HisdreamistodefeatCholera.②Hefinallybecameasuccessfulscientist.③Thecausesofthediseaseremainunknowntothepublic.④Theresultsoftheexperimentsoundreasonable.Lookatthefollowingsentencesandthinkaboutthesentencecomponentsintheunderlinedparts.表语

①WhatJohnSnowshowedtotheworldwashowcholeracouldbeovercome.②TheexactplacesSnowmarkedonthemapwerewhereallthosewhodiedhadlived.③Snow’sfindingwasthatthepumpwatercarriedcholeragerms.表语从句的概念系动词表语从句Observethesentencesandthinkaboutwhatisapredicativeclause.系动词表语从句表语从句系动词

在复合句中，位于_________之后，充当________的名词性从句称作表语从句。表语系动词可以接表语从句的系动词有:be;feel,seem,look,appear,sound,taste,smell;remain,keep,stay;become,get,grow,turn,go,come,run,fall;prove,turnout.表语从句的概念

ⅡObserveandDiscover

Ingeneral,doctorsinthosedayshadtwocontradictorytheoriestoexplainhowcholeraspread.Onetheorywas______badaircausedthedisease.Anotherwas______cholerawascausedbyaninfectionfromgermsinfoodorwater.(Para.2)Whatismore,inanotherpartofLondon,awomanandherdaughterhaddiedofcholeraaftermovingawayfromBroadStreet.Itseemed______thewomanlikedthewaterfromthepumpsomuchthatshehaditdeliveredtoherhouseeveryday.(Para.3)一、that引导的表语从句thatthatthatthat____意义，在表语从句中______成分,起______作用，________省略。无不充当连接不能

Thequestionis_________wecanrelyonhim.Heoftentellslies.Thequestionis_________wecanfinishthetaskontime,forwehaveonlythreedaysleft.二、whether引导的表语从句whetherwhether思考：可以用“if”来引导吗？连接词whether起_____作用，意为“_________________”，在句中也不作任何成分（注意：if______引导表语从句)。连接是否、究竟、到底不能

三、what,which,who,whom,whose等引导的表语从句Tomisnolonger_______heusedtobe.Thequestionis_______ofusshouldcomefirst.(我们两个中的哪一个)The