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《英语超级讲义:名词性从句》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、名词性从句名词性从句的结构和功能总结名词性从句包括主语从句,表语从句,同位语从句,名词性从句是一种具有名词功能的非独立分句,名词性从句主要有四种从句结构!以THAT引导的从句,2。以WHETHER/IF引导的从句3。以特殊疑问词引导的从句4。以WHAT或WHETHER等关系代词引导的名词性关系从句。此外还有ASIF/ASTHOUGH也可以引导表语从句主语从句宾语从句表语从句同位语从句作及物动词宾语作介词宾语That一般不省略可以省略一般不省略一般不省略一般不省略Whether/if放在句首时只用whether用whether/if均可,但有区别只用whether只用w
2、hether只用whether特殊疑问句注意语序要用陈述语序名词性关系从句注意语序要用陈述语序二、that从句That从句作主语时,常用it作形式主语,常见的句型有:1.It+be+形容词(obvious,true,natural,surprising,good,wonderful,funny,possible,likely,certain,)+etc+that从句ItiscertainthatshewilldowellinherexamItisprobablethathetoldhereverything2.it+be+名词词组(nowonder,anhornor,
3、agoodthing,apity,nosurprise)+that从句Itisapitythatwecan’tgoItisnosurprisethatourteamhaswonthegame3.it+be+过去分词(said,reported,thought,expected,decided,announced,arranged)+that从句Itissaidthatmr.greenhasarrivedinBeijingItisdecidedthatthemeetinghasbeenputofftillnextMonday2.在口语和非正式文件中,that常可省略,尤
4、其是在非常短的句子中,that总是不必要的,但that从句位于句首时,连词不达意that是绝对不能省略的ItispitythatyouareleavingThatweareinvitedtoaconcertthiseveningisgoodnewstous二‘宾语从句常见的可以接that从句作宾语的动词有see,say,know,imagine,discover,believe,tell,show,think,consider,besure,beafraid等。在可以接复合宾语的动词之后,如think,make,consider可以用it作形式宾语Doyouknow(
5、that)hehasjoinedthearmy?IamsurethathewillpasstheexamWethinkithighlyprobablythatheisdeadWeconsideritnecessarythatheshouldimprovehispronuniciationHehasmadeitclearthathewillnotgivein2.that从句一般不能充当介词宾语,偶尔可作expect,in的宾语HeisagoodstudentexceptthatheisalittlebitcarelessHedifferedfromhisclassmat
6、esinthathedevotedhissparetimetoreading5其他介词后面需要用that从句作宾语,必须用it作形式宾语YoumaydependonitthatIshallalwayshelpyou3.表语从句That引导表语从句时,不能省略Mydecisionisthatallofusaretostartat6o’clocktomorrowmorning四同位语从句,连词that引导同位语从句时,应在某些抽象名词之后,如fact,hope,desire,thought,suggestion,idea,news,problem,对前面的名词起补充说明的
7、作用,连词that只能引导同位语从句的作用,在从句中不担当任何成分,不能省略2002,there’safeelinginmethatwewillneverknowwhataufois__notever三,whether/if在表语从句和同位语从句中只能用whether不能用if,当主语从句放于句首时,也只能用whether不用if,当it作形式主语,主语从句放在句末时用whether或if均可,discuss后whether或if引导宾语从句时,必须用whetherWhetherthemeetingwillbegivenisstillaproblem