名词性从句连接词的选用

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1、名词性从句的重点、难点、考点：Whowhosewhom连接代词Whatwhichwhenwhere,连接词连接副词Whyhow★that无词义，不担任成分，有时可省略连接词whether＼if是否（不担任成分）asif★注意：连词的选用：依据“缺什么补什么”原则确定正确的连词。如果句子中缺主语，指人用，指物用；如缺宾语，指人用，指物用；如缺时间状语用；地点用；原因用；方式用；定语用what或which；什么都不缺用。whether和if（一）that和what的选用：What起连接作用外，还在名词性从句中

2、充当成分。That只起连接作用，不充当任何成分。1.______hewantsisabook.2.______hewantstogothereisobvious.3.Theresultis______wewonthegame.4.Thisis_____wewanttoknow.5.Is_____hetoldustrue?6.Weshouldpayattentionto______theteacherissaying.7.Ihavenodoubt_____hewillcome.8.Ihavenoidea__

3、___hedidthatafternoon.(二）if和whether的选用不能使用if的情况：a.主语从句b.表语从句c.同位语从句d.介词后的宾语从句e.whethertodo做动词宾语不能用iftodo.f.whetherornot连在一起引导宾语从句时不用if.1.Iaskedher__________shehadabike.2.______wewillholdapartyintheopenairtomorrowdependsontheweather.3.We’reworriedabout____

4、____heissafe.4.Idon’tknow___________heiswellornot.5.Idon’tknow________ornotheiswell.6.Thequestionis_________heshoulddoit.7.Thedoctorcanhardlyanswerthequestion______theoldmanwillrecoversoon.8.Idon’tknow_______togo.（三）其它连接代词和副词的连用5何时举行运动会还没有决定。________wesha

5、llholdoursportsmeetingisnotdecided.我不知道昨天谁打破了玻璃。Idon’tknow_________broketheglassyesterday.我不知道他长的什么样子。Ihavenoidea_________helookslike.这就是我忘记眼镜的地方。Thisis_________Ileftmyglasses.（四）引导词that的省略that可省略的情况：单个宾语从句中的that可省略that不可省略的情况：a.主语从句b.表语从句c.同位语从句d.用it做形式宾

6、语的宾语从句e.并列的宾语从句中的后几个从句的,引导词that不能省略1.Idon’tthink________sheiscoming.2.Itisapity________hehasmadesuchamistake.3.Thereasonis_________heiscareless.4.Thenews________ourteamwonthematchinspiredus.5.Idon’tthinkitnecessary_________youshouldreadEnglishaloud.6.Heto

7、ldme__________hisfatherhaddiedand__________hehadtomakealivingalone.五、同位语从句的引导和辨别1.同位语从句的格式：n.+连接词+从句2.能接同位语从句的名词有：fact、idea,news,information,order,belief,suggestion,advice等.3.连接词通常是that,也可根据含义选用whether,what,when,where等来引导同位语从句.1.Ihavenoidea_________hecome

8、sfrom.2.Hecan’tanswerthequestion________hegotthemoney.3.Hegaveusmanysuggestions________weshouldgetupearlierandtakemoreexercise.4.Ihavenodoubt________hewillwin.5.Ihavesomedoubt________hewillwin.（六）同位语从句和定语从句的区别1.定语从句