语法之IT的用法高考英语课件

高中英语语法之IT的用法1，it的基本用法（1）用作人称代词，ItisnoteasytofinishtheworkintwodaysItisnousecryingoverspiltmilkItisaspitythatyoudidn’treadthebook（8）作形式宾语，季节等，—Whattimeisit?—It’seighto’clockItoftenrainsinsummerhere（6）指距离，that，IthinkitnousearguingwithhimIfounditveryinterestingtostudyEnglishHemadeitclearthathewasnotinterestedinthatsubject（9）用于强调结构，ItwasXiaomingwhom(that)ImetinthestreetlastnightItwasinthestreetthatImetXiaominglastnightItwslastnightthatImetXiaominginthestreetItwasIwhometXiaominginthestreetlastnight2，指一个人或事物，Itisalongwaytotheschool（7）作形式主语，代替前文提到过的事物，ThetrainhasarrivedItarrivedhalfanhourago（2）用以代替提示代词this，—Whoisknockingatthedoor?—It’sme（4）指环境情况等，Itwasverynoisy(quiet)attheverymoment（5）指时间，—What’sthis?—It’saknife—Whosewatchisthat?—It’smine（3）起指示代词的作用，含有“Itis…”的句型（1）Itistime(forsb)todosthItis(high)timethatsbdidsth(虚拟语气)（2）Itis+形容词（+of/forsb）+todosth通常用?of的词有，