欢迎来到天天文库
浏览记录
ID:44838770
大小:238.68 KB
页数:41页
时间:2019-10-30
《常用it作形式主语的句型结构》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、常用it作形式主语的句型结构◇It+be+形容词+that-从句可用于此句型的形容词有:wonderful,true,good,right,wrong,(un)important,useless,surprising,clear,unusual,lucky,certain,necessary等。如:①Itisquitecertainthathewillbeatthemeeting.②Itissurprisingthathecamelatetoschoolthismorning.③Itisimportant
2、thatwe(should)studyhard注意:该句型中的形容词是(un)important,necessary等时,从句应为(should)+动词原形。◇It+be+-ed分词+that-从句适用该句型的过去分词主要有:said,reported,announced,hoped,thought,told,believed,expected,decided,suggested,known等。如:①Itishopedthatonedaytheywillhaveenoughanimalstosetthem
3、free②Itiswellknownthattheearthgoesaroundthesun.③Itissuggestedthatthesportsmeeting(should)beputoffuntilnextweek.注意:该句型的过去分词是suggested时,从句应为(should)+动词原形。◇It+be+名词+that-从句适用该句型的名词(词组)有:apity,anhonor,agoodthing,afact,asurprise,goodnews,one’sduty等。如:①Itisapit
4、y(that)youmissedthesportsmeetinglastweek.②ItisafactthatEnglishisbeingacceptedasaninternationallanguage.◇It+seem/appear/happen的适当形式+that从句。该句型常可以转换成含不定式的简单句。如:①Itseemsthatthereisabigwastepipecomingdownfromthetown.→Thereseemstobeabigwastepipecomingdownfromt
5、hetown.②Heappearedtobecalm,butinsidehisheartwasbeatingwildlywithfear.→Itappearedthathewascalm,butinsidehisheartwasbeatingwildlywithfear.◇Itdoesn'tmatter(It’snowonder;Itdoesn’tmakemuchdifference等)+when/where/which/whether等从句。如:①Doesitmatterifhecan'tfinisht
6、hejobontime?②Theyareallclassmates.Itisnowondertheyshouldhelpeachotherwiththeirstudies.◇It+be+adj./n.(forsb./ofsb.)+todosth.该句型中的形容词通常是表示事物的特点或特征的如difficult,hard,easy,impossible,necessary,important等,此时用for;或表示人的性格特征或特点的如nice,good,bad,kind,silly,foolish,wis
7、e,clever,careless,rude,brave,cruel,careful,grateful等,这时要用of。如:①Itisfoolishofyoutogiveupsuchagoodchance.②ItisnecessaryforcollegestudentstomasteratleastaforeignlanguageIt作形式主语常见句型动词不定式,动名词或主语从句作主语时,通常把它们放在谓语动词前,而用it作形式主语,放到句首,常见句型有:1.It+be+形容词+主语从句,如:Itisun
8、certainwhetherhecancometoJenny’sbirthdaypartyornot.2.It+be+名词词组+主语从句,这类名词有:afact,apity,ashame,anhonour,aquestion等,如:It’sapitythatyoumissedtheexcitingfootballmatch.Itremainsaquestionwhetherhewillcomeornot.3.It+be+过去分
此文档下载收益归作者所有