河北省抚宁县第六中学高二英语 it用法课件.ppt

grammar theuseof it itisnevertoooldtolearn 活到老 学到老 itisnousecryingoverspilt 溢出的 milk 覆水难收 ittakesthreegenerations 代 tomakeagentleman 十年树木 百年树人 proverbs 谚语 with it theuseof it 一 用作人称代词 代表前面提到的人或事物 who sit me lookatthepicture isapictureofourschool it s it 二 用于代替指示代词this和that isthisjacketyours yes is it 三 用以表示时间 距离 天气 气候 季节 环境等 itishalfpasteightnow it sonlyhalfanhour swalkfromheretoourschool 3 ihopethatitwillbefinetomorrow 4 ithasrainedmuchthisyear 5 it sspringnow 6 it squiethere time distance weather weather season circumstance 替代作主语的从句 动词不定式 动名词 而把真正作主语的从句 动词不定式 动名词置于句尾 四 it用作形式主语 1 代替动词不定式做主语 1 itbeadj forsb todosth 此处adj 通常为描述事件的形容词 easy difficult necessary important possible dangerous right wrong legal useful useless itisillegaltodriveacarwithoutalicense 2 itbeadj ofsb todosth 此处adj 通常为描述人的形容词 kind nice rude polite cruel considerate thoughtful careful careless foolish stupid clever wise crazy it skindofyoutohelpmewiththeproblem it s well worthone swhiledoing todo itisworthmywhiletoexplorethecity 这值得我花时间 精力勘察这个城市it s well worthwhiledoing todo itisworthwhiletoexplorethecity it snogood use pleasuredoing itisnousestudyingonlyatschool 2 代替动名词做主语 3 代替主语从句作形式主语 itisclear obvious true possible certain that 注意没有itissurethat 该句型中it是形式主语 真正的主语是that引导的主语从句 常译为 清楚 显然 真的 是主语从句最常见的一种结构 e g itisveryclearthathe stall itisadj 从句 itissaid reported believed that 该句型中的it仍是形式主语 真正主语是that引导的主语从句 该结构常译为 据说 据报道 据悉 itissaidthathehascometobeijing heissaidtohavecometobeijing itisv edthat itis noun 从句 itisapity ashame anhonor agoodthing afact asurprise that 该句型中 that后的从句一般用虚拟语气 should 动词原形 should可省去 表示出乎意料 常译为 竟然 没有这种意义时 则不用虚拟语气 如 itisapitythatsuchathing should happeninyourclass 这种事竟然发生在你们班上 真是遗憾 itisapitythatyoucan tcome 你不能来 真是遗憾 五 it作形式宾语 当复合宾语中的宾语是不定式 动名词 宾语从句时 往往把宾语放在它的补足语后面 而用it作形式宾语 放在宾语补足语之前 该句型中的it作形式宾语 常用的动词有think believe make find consider feel等 ithinkitnousearguingwithhim 参考 itisnousearguingwithhim ifounditveryinterestingtostudyenglish 参考 itwasveryinterestingtostudyenglishhemadeitclearthathewasnotintothecar 参考 itwasclearthathewasnotintothecar manynewreserveshavebeenbuilt 这使这些猴子可能 tosurvive whichmakesitpossibleforthemonkeys it作形式宾语的特殊句型 结构动词 it if that when动词有喜欢类 enjoy like appreciate prefer讨厌类 hate dislikeiwouldappreciateitifyoupaidincash ilikeitwhenmymotherishappy ihateitwhenpeopletalkwiththeirmouthsfull 其他类 seetoitthat oweittosbthat rely dependonitthat takeitforgrantedthat leaveittosbthat makeitarulethat 注意 keep bearinmindthat中间没有it seetoitthatthebabymustbefedwhenhungrybutnottoomuch 留意 务必hetookitforgrantedthathewouldpasstheexam 想当然地认为don tdepend relyonitthathewillarriveontime 指望 iowedittotomthatifoundthejobiwanted 把 归功于某人iwillleaveittoyouwhetheryougoabroadornot ihavemadeitarulethatiwilldosomeenglishreadingeveryday 习惯做 规定必须做 经常做 六 用于强调句型中 it be 被强调部分 that who aperson 从句 imettomintheparkyesterday 1 itwasiwhomettomintheparkyesterday 2 itwastomwhoimetintheparkyesterday 3 itwasintheparkthatimettomyesterday 4 itwasyesterdaythatimettominthepark itwasfiveo clock igothome itwasatfiveo clock igothome when that itisnotuntil 被强调部分 that 该句型也是强调句型 主要用于强凋时间状语 译成汉语 直到 才 可以说是not until 的强调形式 如 itwasnotuntilshetookoffherdarkglassesthatirealizedshewasafamousfilmstar notuntilshetookoffherdarkglassesdidirealizeshewasafamousfilmstar ididn trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses 七 it常用的固定搭配 makeit在口语当中相当于succeed 表示 成功 做到 说定 赶上 及时到达如 it shardtomakeittothetopinshowbusiness 2 takeiteasy相当于don tworryordon thurry 用来劝告别人 表示 不要慌 别担心 沉住气 takeiteasy hewilldoitwell 3 italldepends thatalldepends在口语中 相当于ithasn tbeendecidedyet 表示 那得看情况 还没有定下来 areyougoingtothecountrysideforholiday it thatalldepends 4 it suptosb 在口语中 相当于it sdecidedbysb 表示 由 决定 由 负责 取决于 shallwegooutfordinner it suptoyou 高考链接1 hedidn tmake clearwhenandwherethemeetingwouldbeheld 天津2007 a thisb thatc itd these2 isourbeliefthatimprovementsinhealthcarewillleadtoastronger moreprosperouseconomy 浙江2006 a asb thatc thisd it c d 3 thedoctoradvisedverastronglythatsheshouldtakeaholiday but didn thelp 2005全国 a itb shec whichd he4 i dappreciate ifyouwouldliketoteachmehowtousethecomputer 山东2006 a thatb itc thisd you a b 5 itwas hecamebackfromafricathatyear hemetthegirlhewouldliketomarry 江西2009 a when thenb not untilc notuntil thatd only when6 itwasalongthemissippiriver marktwainspentmuchofhidchildhood 天津2008 a howb whichc thatd where c c exercises 1 ihate whenpeopletalkwiththeirmouthsfull a itb thatc thesed them2 inwhichplayis yourbrotherwillappear a thatwhereb thiswhenc itthatd itwhere3 theharderyouwork thebetterresultyou llget a it sbelievedthatb whatwebelievedthatc it sfactd whatthefactis a c a 4 nothingcanstopus a can titb canitc can twed canwe5 canyoutellushowthewarwaswonintheend idon tknow a it shardtosayb itdoesn tmatterc it snousesayingd itdependsonthework b a 6 does matteralotwhethershewillcomeherebybusorbytaxi a thethingb thatc itd hermother7 listen someoneisunlockingthegoods mustbeyourfathercomingbackfrombeijing a itb therec thatd this c a 8 haveyouwrittenalettertoher no buti mgoingtowrite tonight a itb thatc thosed one10 nowprettylate wetookcandlesandwentupstairs a beingb forc forbeingd itbeing d d 11 theteachertoldthestudents a whytolearnenglishimportantb whywasitimportanttolearnenglishc whyitimportanttolearnenglishd whyitwasimportanttolearnenglish12 thetvs