文档介绍:It作先行词的强调句1)陈述句:+强调部分+that/who/whom…Theshopassistantfoundthatpetdog[inthebasement][yesterday].[inthebasement][yesterday].[inthebasement][yesterday].[yesterday].[inthebasement][inthebasement].[yesterday]、宾补或表语It'smethathegavetheparcelto.=It'stomethat…--’(because/since/as/for/becauseof)')否定句和一般问句:ItisnotIwho/+强调部分+that/who/whom…?3)特殊问句:疑问词+is/was+it+that/who/whom…?[in…][yes…]?Theshopassistantfoundthatpetdog[inthebasement][yesterday].[in…][yes…]?Whatc.[]wasitthattheshopassistantfoundthatpetdog[yesterday]?Whered.[]wasitthattheshopassistantfoundthatpetdog[inthebasement]?WhenWhatcausedtheforestfire?Whatwasitthatcausedtheforestfire?Whendidhegetadoctor'sdegree?.Whenwasitthathegotadoctor'sdegree?Wasittheshopassistantthatfoundthatpetdog[inthebasement][yesterday]?文档分享4)it强调句型和it作主语的非强调句型:…B.---"What'sthis?"---"Itisthedictionarythatyouwant.". );itistwoyears_____hewasaheadmasterhere.( )beforethatwhensince文档分享5):完全/部分倒装(a)PhysicsIlike,butchemistryIhate.(b)HeadofthehospitaltheymadeSmith.(c):(a)助动词do,does,did:Hedoeshopethatyo