高考语法unit3it用法公开.ppt

Unit3Ahealthylife,石家庄学院元氏分院魏会佳,Whatisit?,Playagame,OneStudentreadsthecluestothehabitsandtheotheroneguessestheanswer.,.carefulperson.,Itisabadhabitformalesandfemales.Youcanbecomeaddictedtoit.Somepeoplethinkyouaregrownupifyoudothis.Itmakesyousmellbad,andturnyourteethyellow.,Whatisit?,Smoking,.carefulperson.,Itisabadhabitforbothmalesandfemales.Itissomethingyoushouldntstartbecauseyouwillbeaddictedtoit.Itissomethingwhichisillegal.Itisaveryexpensivehabitandsowillwasteyourmoney.,Whatisit?,drugtaking,.carefulperson.,Itisadiseaseyoucancatchifyouhaveunprotectedsex.Thisillnessstayinyourbodyforalongtimeandeventuallyweakensyourimmunesystem.Thereisnocureatthemomentforthisillness.,Whatisit?,AIDS,.carefulperson.,Itisabadhabitformalesandfemales.Itbeginsasasocialactivityatmealtimes.Itonlybecomesaproblemwhenapersonhastoomuchtoooften.Itcanbecomeaddictiveandcausegreatharmtothebody.,Whatisit?,Drinkingalcohol,.carefulperson.,ItisabadhabitItbeginsasItonlybecomesItisadiseaseItissomething.Itmakesyousmellbad,.carefulperson.,TheuseofIt,-Whatdoyouthinkofthemovie?-ItsoneofthebestmoviesthatIveseen.,Whosthelovelybaby?,MymotherisMissWei.,Itsmybaby.,Itcanbeusedaspersonalpronouns（人称代词）,referringtotheperson,animalormattermentionedabove,orthepersonwhoyouarenotsureofgender.,summary1,apagefromPetersdairy,_wasasunnyday.Peterdecidedtogoforawalktothepark,though_wastwomilesaway._wassocomfortabletowalkonthestreet.,it,it,It,Suddenly_begantorain.Hefound_hardtowalkthere.Thenhetookabushome.Unfortunately_wentwrong.Whenhegothome,hewaswetthrough.Thus_wasadaythathewouldneverforget.,It,it,it,it,Eg:Itwasasunnyday.Peterdecidedtogoforawalktothepark,thoughitwastwomilesaway.,Summary2,Itcanbeusedasimpersonalpronouns（非人称代词）totalkabouttime,date,distanceorweatherandsoon.,Reading,AdvicefromGrandad,Ahealthylife,Itisnoteasytostopsmoking.ItseemsamazingthatatmyageIamstillfitenoughtocycle20kilometresinanaftermoon.3.Youarefoundingitdifficulttogiveitup.,Summary3,“It”canbeusedinthesubjectorobjectpositiontostandfortheinfinitive（不定式）oraclause.,Rewritethesesentencesusingan“it”structure.,1.Givingupsmokingisdifficult.Itis2.Someyoungpeoplethinktheylookattractivewhentheysmoke.Itseems3.Mostpeoplebelievesmokingcausescancer.Itisbelieved,difficulttogiveupsmoking.,thatsomeyoungpeoplethinktheylookattractivewhentheysmoke.,thatsmokingcausescancer.,4.Youarenotallowedtoadvertisecigrettesinthiscountry.Itisillegal5.Youcouldsufferfrombadhealthifyoukeepsmoking.Itislikely6.Youhavetotakepillstocontrolyourbloodypressure.Itisnecessary,toadvertisecigrettesinthiscountry.,thatyoucouldsufferfrombadhealthifyoukeepsmoking.,foryoutotakepillstocontrolyourbloodypressure.,Preparatorysubject（形式主语）,adj.,difficult/easyImportant,n.,pleasure/pity/shame/fun,v.,Itis/was,Itis/wasa,It,appearsseemslookscertainissaid,that,todo,that,todo,that,Preparatoryobject（形式宾语）,v.,Sb.+,thinkmakeitfind,+adj.,todo+that,Jointhetwosentencesbyusing“it”asobject.,JanethinksitfunnythatIhavetakenupChinesekungfu.,IhavetakenupChinesekungfu.Janethinksitisfunny.,Role-playadialogue.,Oneofyouisaneyewitness(E)whohasseenarobbery（抢劫）oranaccident.TheotheristhePoliceman/policewoman(P)whowantsasmuchinformationaspossible.Use“it”intheanswers.,Forexample:,P:Whatwastheweatherlikeonthedayoftheaccident?E:Itwasbeginningtorainhardandthegroundwasslippery（滑的）.P:Howfarcouldyousee?E:Itwasimpossbletoseemorethantwentyyardsaheadofyou,soallthecarsweretravellingveryslowly.P:WhataboutMrLiscar?Wasittravellingslowlytoo?,SumUp,Itcanbeusedaspersonalpronouns（人称代词）,Itcanbeusedasimpersonalpronouns（非人称代词）,Itcanbeusedinthesubjectorobjectpositiontostandfortheinfinitiv（不定式）oraclause.,ReviewtheuseofitbydoingtheexerciseonP57.,Homework,Ifyouwantknowledge,youmusttoilforit.要想求知，就得吃苦。,Summary4,Summary4,Eg:,Itwaswewho/thatcalledonProfessorWangathis