Step1 Step1.Readandanalyzethefollowingsentences. .Readandanalyzethefollowingsentences. .Readandanalyzethefollowingsentences. S1. S1. S1. Whatisthis? Whatisthis? Whatisthis? Itisacellphone.isacellphone. isacellphone. S2.S2. S2. Whatisthat? Whatisthat? Whatisthat? Itishisdictionary.ishisdictionary. ishisdictionary. S3.S3. S3. Whosebookisthis? Whosebookisthis? Whosebookisthis? ItisMrChengisMrCheng isMrCheng S4.S4. S4. WhereisyourEnglishbook? WhereisyourEnglishbook? WhereisyourEnglishbook? Itishere.ishere. ishere. S5. S5. S5. Mycatismissing,Ican Mycatismissing,Ican Mycatismissing,Ican ’tfindtfind tfindit itanywhere.anywhere. anywhere. Question:Whatdoes Question:Whatdoes Question:Whatdoes““ inthesesentencesreferto?inthesesentencesreferto? inthesesentencesreferto? 归纳总结 归纳总结 归纳总结:it--- 词性词性 词性?______ 可以用作人称代词,代指可以用作人称代词,代指 可以用作人称代词,代指___________________ 还可以替代指示代词还可以替代指示代词 还可以替代指示代词_____ Step2Step2 Step2.Readandanalyzethefollowingsentences. .Readandanalyzethefollowingsentences. .Readandanalyzethefollowingsentences. nn ItisFridaytoday.isFridaytoday. isFridaytoday. nn ItwasverycoldlastMonday.wasverycoldlastMonday. wasverycoldlastMonday. Itisabout8:30now.isabout8:30now. isabout8:30now. nn Itisabout25kmfromLongxiantoBazi.isabout25kmfromLongxiantoBazi. isabout25kmfromLongxiantoBazi. nn ItliesinthesouthofShaoguancity.liesinthesouthofShaoguancity. liesinthesouthofShaoguancity. nn Itis40is40 is40 C!Yougotahighfever! C!Yougotahighfever! C!Yougotahighfever! Question:Whatdoes Question:Whatdoes Question:Whatdoes““ inthesesentencesreferto?inthesesentencesreferto? inthesesentencesreferto? 归纳总结: 归纳总结: 归纳总结: :it可以用作非人称代词,表示可以用作非人称代词,表示 可以用作非人称代词,表示_____,_____,______,______,______,______ Step3Step3 Step3.Readandanalyzethefollowingsentences. .Readandanalyzethefollowingsentences. .Readandanalyzethefollowingsentences. nn Itisobviousthatthewaterwastoblame.isobviousthatthewaterwastoblame. isobviousthatthewaterwastoblame. nn Itistruethathewilltreatmeforbreakfasttomorrow.istruethathewilltreatmeforbreakfasttomorrow. istruethathewilltreatmeforbreakfasttomorrow. nn Itiscertainthatourclasswilldoagoodjobinthefinalexam.iscertainthatourclasswilldoagoodjobinthefinalexam. iscertainthatourclasswilldoagoodjobinthefinalexam. nn itpossiblethathewillbecomethechairmanofourcountry?possiblethathewillbecomethechairmanofourcountry? possiblethathewillbecomethechairmanofourcountry? nn ItisamazingthatatmyageIstilllooklikeastudent!isamazingthatatmyageIstilllooklikeastudent! isamazingthatatmyageIstilllooklikeastudent! nn 分析:分析: 分析:it ,句子真正的主语是句子真正的主语是 句子真正的主语是—— 牢记以下常用于该句型的形容词牢记以下常用于该句型的形容词 牢记以下常用于该句型的形容词 Itisclear/obvious/true/possible/certain/amazing/ridiculousItisclear/obvious/true/possible/certain/amazing/ridiculous Itisclear/obvious/true/possible/certain/amazing/ridiculous 思考:为什么要用思考:为什么要用 思考:为什么要用it 做形式主语而把真正主语放到后面去?做形式主语而把真正主语放到后面去? 做形式主语而把真正主语放到后面去? 跟踪训练跟踪训练 跟踪训练11 :Itis+adj.+thatItis+adj.+that Itis+adj.+that 从句 从句 从句 很明显他已经知道了那个坏消息。很明显他已经知道了那个坏消息。 很明显他已经知道了那个坏消息。 真的,我一点都不喜欢她的绵羊音。真的,我一点都不喜欢她的绵羊音。 真的,我一点都不喜欢她的绵羊音。(( (sheepvoice sheepvoice sheepvoice)) 姚明篮球比易建联打得好是肯定的。姚明篮球比易建联打得好是肯定的。 姚明篮球比易建联打得好是肯定的。 很有可能火箭队不能进入季后赛(很有可能火箭队不能进入季后赛( 很有可能火箭队不能进入季后赛(playoffs playoffs playoffs)) Step4Step4 Step4 Step4 下面两道题有什么特别之处? 下面两道题有什么特别之处? 下面两道题有什么特别之处? 1.Itwasurgentthathe_________herimmediately.