人教版 选修六 Unit 4 Global warmingGrammar课件（29张PPT）.ppt

grammar theuseof it discovering it itisabeautifuldayhere 2 itseemsamazingthatatmyageiamstill 3 it smybirthdayintwoweekstime 4 youarefindingitdifficulttogiveitup 5 iknowhoweasyitistobeginsmoking it作代词 1 it用来指代人 说明某人的身份或者做某事的人 指代婴孩或儿童 在不清楚某人性别时也可用it whoisthat itisme whatabeautifulbaby isitaboy whoisknockingatthedoor itisme 2 用于代替this或that whatisthis that itisaflag 3 用来指代前面或后面的名词或分句等所表示的事物 4 用作非人称代词 可指代时间 季节 天气 距离 重量 价格 环境等 helikedthiscar buthecouldnotaffordit youhavesavedmylife ishallneverforgetit shekepttellinghimthatheshouldworkharder butitdidnothelp time distance weather weather season circumstance price weight 1 itishalfpasteightnow 2 it sonlyhalfanhour swalkfromheretoourschool 3 ihopethatitwillbefinetomorrow 4 ithasrainedmuchthisyear 5 it sspringnow 6 it squiethere 7 itistenyuan 8 itis6kilos it做形式主语 1 it be 名词 that从句e g itisapity afact awonder nowonderthat itisapitythatsheshouldfailtheexam 2 it be 形容词 that从句e g itisimportant likely possible rightthat itisnecessary natural strange essentialthat itisimportantthatweshouldlearnaforeignlanguage 3 it 不及物动词 that从句 itissuggested ordered required demanded desiredthat e g itseems happens appearsthat itseemsthatitisgoingtorain 4 it be 动词的过去分词 that从句 e g itissaid believed known reportedthat itissuggestedthatthemeetingshouldbeputofftillnextweek itissaidthattomisafaithfulworker itisreportedthatthemurdererhasbeenarrested 3 itisbelievedthatallthestudentshavedonetheirbest tomafaithfulworker issaidtobe themurdererarrested allthestudentstheirbest isreportedtohavebeen arebelievedtohavedone it做形式主语 5 it be 形容词 名词 forsb ofsb todoe g it scarelessofhertomakeaspellingmistake it shardformetofinishitintwodays it smydutytotakecareofallthestudents 6 it be 名词 doinge g it sfun nouse nogood awasteoftimedoingsth whatdothose it referto itisimportanttoknowyourlimitations itisagoodideatohavealittlenotebookathand itisnotworthwhilequarrellingwithhim itisstrangethatithasn tbeennoticedbefore ithappenedthattheharvestwasbadthatyear itisstillaquestionhowmanypeoplewillbelieveyou itisnobusinessofyourswhereispendmywinter itwasclearenoughwhathemeant let spractice togiveupsmokingisverydifficult 2 arguingwithamanlikehimisofnouse 3 don tspeakillofher it swrong itisverydifficulttogiveupsmoking itisnousearguingwithamanlikehim itiswrong foryou tospeakillofher 4 whetherhewillcomeornotdoesn tmatter 5 thatheturnedouttobethiefsurprisedmealot 6 thenewshasreachedeverypartoftheworld someonesaysthat itdoesn tmatterwhetherhewillcomeornot itsurprisedmealotthatheturnedouttobethief itissaidthatthenewshasreachedeverypartoftheworld 7 whetheritwilldousharmorgoodremainstobeseen 8 doeswastingalittlemoneymatter itremainstobeseenwhetheritwilldousharmorgood doesitmatterwastingalittlemoney specialnotice itbe vs therebe 是 有 someoneatthedoor ithink themantodeliverthemilk let shurry alongwaytogo noneedtohurry westillgetmuchtime awonderthatherefusessuchagoodoffer thereis itis thereis thereis itis itis thereis 5 nodoubtthathehasdonesomethingbad 6 nopossibilitythathewillcheatus 7 nogoodarguingwiththeunreasonablewoman 8 nodifferencebetweenthetwoplans thereis thereis itis thereis it做形式宾语 主语 动词 it 形容词 名词 不定式 动名词 that从句 iconsideritwrongtocheatinanexamination don tyoufinditawasteoftimewatchingtelevisiontoomuch ithoughtitstrangethatjackshouldhavehadsomuchmoneytospendthesedays it的模糊指代 指it用来指代后面从句的情况 因为后面的从句不能充当宾语 e g ican thelpitifsheisalwayslate ihateitwhenpeopletalkwiththeirmouthsfull idon tlikeitwhenachinesehostkeepsservingmethefoodidon tlike i dappreciateitifyoucangivemesomeusefulinformation it的其他句型 强调句 itis was 被强调部分 that who 剩余部分 注意 who只用于被强调部分是人的时候注意疑问句语序注意not和until imethimintheparklastnight itwasiwho thatmethiminthe itwashimwhom thatimetintheparklastnight itwasintheparkthatimethimlast itwaslastnightthatimethiminthepark ididmeethimintheparklastnight itwasatteno clock igothome itwasteno clock igothome itwasintheroom iwasborn thisistheroom iwasborn that where that when puzzle wherewereyouborn whatdidyoubuyinthesupermarket whyareyoulateforclass whendoyouwanttohavethemeeting wherewasitthatyouwereborn whatwasitthatyouboughtinthesupermarket whyisitthatyouarelateforclass whenisitthatyouwanttohavethemeeting 将此句改成强调句 shedidn tgotobeduntilherfathercameback itwasuntilherfathercamebackthatshedidn tgotobed wrong itwasnotuntilherfathercamebackthatshewenttobed right 2 it stimethatsb did shoulddo sth 虚拟语气 it stimeforsb todosth 3 it sthefirst second third timethat 注意 必须用完成时态 be 时间段 before 过多久 才 4 itbenot 时间段 before 没过多久 就 itwastwohoursbeforethefiremenarrivedhere itwasnotfiveminutesbeforethefiremenarrivedhere 过两个小时消防员才到 没过五分钟消防员就到了 1 iglancedatmywatch 比我原来想的要早些 2 maryfound 她很难对他们解释所有的一切 3 很奇怪 thecarshouldbreakdown 4 没好处 talkingwithoutdoinganything 5 天又潮又冷 ithink 要下雨了 完成句子 itwasearierthanithought itdifficultforhertoexplainallthistothem itisstrangethat itisnogood itisdampandcold itisgoingtorain 6 whatalovelybaby 是个男孩吗 7 直到夜里很晚了 thattheexplorersputuptheirtents 8 我们一点都不惊讶 whatcausedhissuccess 9 我花了14万元钱 tobuythiscar 10 我很惊讶 whenhedidathinglikethat itisaboy itwasnotuntillateintheevening itdidn tsurpriseusatall itcostme140 000yuan itwasagreatsurprisetome 1 帮助我你真是太善良了 2 每天做早锻炼有益于身体健康 3 我们认为帮助灾区的人民抗风雪暴是我们的职责 4 三天之后他将要回来 5 在英国懂得英语似乎是非常重要的 6 碰巧我看过这部电影7 据说这位电影明星已经到了杭州 8 他的腿是在哪里受伤的 9 因为下雨的原因我们推迟了运动会 10 是什么阻止他准时来的 translation 1 it skindofyoutohelpme 2 it sgoodforustodomorningexerciseseveryday itdoesusgoodtodomorningexerciseseveryday 3 wefeelitourdutytohelpthepeopleindisaster strickenareastofightagainstthesnowstorm 4 itwillbe3daysbeforehecomesback 5 itseemsveryim