it用法公开课市公开课一等奖省赛课微课金奖PPT课件.pptx

itDiscussionLookatthepicture._____isapictureofourschool.---Isthisjacketyours?---Yes,______is.3.用以表示时间、距离、天气、季节、环境等.二形式it-------形式主语，形式宾语ItisvitalforallofyoutohaveagoodcommandofEnglish.1.代替动词不定式做主语Makesentences:你让我们做这些练习是明智。2)Itbeadj.ofsb.todosth.此处adj.通常为描述人形容词:kind,,nice,rude,polite,cruel,considerate（细心）,thoughtful,careful,careless,foolish,stupid,clever,wise.你能帮我，真好。3It+takes、took(sb.)+时间/金钱/精力等+动词不定式It’snogood/use/pleasuredoing…做……没益处，没用，没趣Itispossiblethatwewillrealize（实现）ourdreamsoneday.3.代替主语从句作形式主语Itisnecessarythatyou(should)rememberthe3500words.2)Itisimportant(necessary，strange，natural,surprising...)that...that后从句中要用虚拟语气（should+动词原形。Itissaidthathehasasecretweaponinmathslearning.Itissaid(reported/believed.....)that...该句型中it仍是形式主语,真正主语是that引导主语从句;该结构常译为“听说(据报道,据悉…)”。Itisashamethatourcityhasbeenundertheshadowofsmogthesedays.③Itis+noun+从句Ithappens(seem,appears,turnsout,)等不及物动词+that...恰巧．．.看来．．．结果证实….Itseemedthathedidn’ttellthetruth.IthappenedthatIwasoutwhenhecalled.Itis(high)timethat...从句应该用虚拟语气，①惯用过去时态表示虚拟．②有时也用should+动词原形，should不能省，常译为＂是（正是）．．．时侯．．．＂形式宾语IfounditveryinterestingtostudyEnglish.it作形式宾语特殊句型Hetookitforgrantedthathewouldpasstheexam.Don’tdepend/relyonitthathewillarriveontime.IowedittoTomthatIfoundthejobIwanted.Theymadeavow（誓言）ofloveinfrontofthehugestonein.It+be+被强调部+that/who(aperson)其它部分Itwasfiveo’clock_________Igothome.Itwasatfiveo’clock_______Igothome.ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar.Itisnotuntil…+that...直到…才四、it惯用固定搭配Itisnevertoolatetolearn.高考链接Thescientists’nextresearchjobwasclear:Findoutwhatinthefish’sbloodkeptitfromfreezing.Theirsearchledtosomereallystrangethingmadeupofaprotein(蛋白质)neverbeforeseeninthebloodofafish.Whenitwasremoved,thebloodfrozeatseawatertemperature.（辽宁）1.Janewaswalkingroundthedepartmentstore.Sherememberedhowdifficult_31_wastochooseasuitableChristmaspresentforherfather.(广东）4.Will__matterifyoudon'ttakeyourbreakfastRecentlyatestweregivenintheUnitedSates.OnedayIwrotealittlestoryandshowedtomyteach