高中英语it的用法课件.ppt

It的用法 It s10 08 It slovely Itweighsonly3kilos It salargesumofmoney 2 2 指时间 Itwasnearlymidnightwhenshecameback 2 3 指环境 Itwasveryquietinthecaf 2 4 指距离 Itishalfanhour swalktothecitycentre 3 it的其他用法3 1 表示谁在做某事的句子 Whoisit It sme Herfacelightedwhenshesawwhoitwas 3 2 用来泛泛的指某件事 Soyouaregoingtobemarriedthistime Whenisit Itdoesn tmatter Itisashame isn tit it可用来指代前文提到的人 物或事情 也可以用来指时间 金钱 距离 天气等自然现象 基本用法 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 Itcanbeusedasimpersonalpronounstotalkabouttime date distanceorweatherandsoon S think it necessary forsb todosth Thechairmanthought necessarytoinviteProfessorSmithtospeakatthemeeting 05全国 A thatB itC thisD him Sentencepatterns B find possible feel important clause 形式宾语 2 S V it one sduty forsb todosth clause 3 S V it nogood doingsth nouse 形式宾语 Ithinkithisdutytocleantheblackboard Sentencepatterns arule anhonour findpossibleS think it necessary forsb todosth clausefeelimportant Sentencepatterns 形式宾语 arule2 S V it one sduty forsb todosth clauseanhonour 3 S V it nogood doingsth nouse Ilike intheautumnwhentheweatherisclearandbright 04全国 A thisB thatC itD one 点拨 这是it作形式宾语的一种特殊用法 少数动词 如like love enjoy dislike hate appreciate等 或包含介词的动词短语 如seeto dependon等 后接宾语从句 必须先由it担任形式宾语 再接从句 Ilike enjoy hate itwhenIwouldappreciateitif seeto dependon itthat Sentencepatterns C 形式宾语 Itisnecessarytobepreparedforajobinterview Havingtheanswersreadywillbeofgreathelp 2 TheForeignMinistersaid Itisourhopethatthetwosideswillworktowardspeace 3 Itisknowntoeverybodythatthemoontravelsroundtheearthonceeverymonth 形式主语 高考真题 Itisclear obvious true possible certain that 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 肯定 是主语从句最常见的一种结构 Itisveryclearthathe sroundandtalllikeatree Thathe sroundandtalllikeatreeisveryclear 4 Itisimportant necessary strange natural that 该句型和上一个同属一个句型 由于主句中的形容词不同 that后的从句中要用虚拟语气 Itisimportantthatwe should learnEnglishwell Itisnecessarythathe should rememberthesewords 5 Itissaid reported learned that ItissaidthathehascometoBeijing Itisreportedthatanotherearthsatellitehasbeenputintoorbit 6 Itissuggested ordered demanded insisted commanded that 该句型和上一个同属一个句型 主句中的过去分词是表示请求 建议 命令等词时 that后的从句要用虚拟语气 should 动词原形 should可以省 常译为 据建议 有命令 Itissuggestedthatthemeeting should beputoff Itwasorderedthatwe should arrivethereintwohours 7 Itisapity ashame 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 Itisapitythatsuchathing should happeninyourclass Itisapitythatheisill 他生病了 真遗憾 8 Itistime abouttime hightime that 该句型中that后的从句应该用虚拟语气 值得注意的是 常用过去时态表示虚拟 有时也用should 动词原形 should不能省 常译为 是 正是 的时侯 Itistimethatchildrenshouldgotobed Itistimethatchildrenwenttobed 9 Itisthefirst second timethatsbhas havedonesthItwasthefirsttimethatsbhaddonesthItisthefirsttimeIhavebeenhere ThisisthefirsttimeIhavebeenhere 10 Itis since 该句型主要用作处理瞬间动词的完成时 又要和表示一段时间的时间状语连用的问题 主句中是时间作表语 其时态是现在时或完成时 since引导的从句通常是一般过去时态 而且是瞬间动词 如果主句是一般过去时 从句则用过去完成时 Itis hasbeen 5yearssincehisfatherdied 11 Itis when 该句型中的when引导的是一个时间状语从句 主句中的it指时间 表语由具体的时间充当 常译为 当 的时候 是 Itwas5o clockwhenhecamehere 12 Itbe before 该句型主句中的it指时间 主句中的时态常是将来一般时或过去时两种时态 主句中的表语多是long notlong 3days 2weeks等表示时间段的词或短语 常译为 之后 Itwas3daysbeforehewenttoBeijing Itwillbenotlongbeforehefinisheshisjob 13 Ithappens seems appears that 该句型中it是形式主语 that引导的是主语从句 主句中的happen seem等词是不及物动词 Ithappened sohappened thathemethisteacherinthestreet 碰巧 Itseemsthathewillbebackinafewdays 看来 14 Ittakessb todosth IttookthousandsofpeoplemanyyearstobuildtheGreatWall 15 Itisnogood use doingsth 该句型中的真正主语是动名词短语 主句中的表语可以是nogood notanygood nouse notanyuse ItisnogoodlearningEnglishwithoutspeakingEnglish 16 Itdoesn tmatterwhether if 该句型中whether if 引导的从句是真正主语 该句型常译为 不论 是否 没关系 Itdoesn tmatteriftheyareold 17 Itiskind ofsb todosth 该句型中的不定式短语是真正主语 如果不定式的逻辑主语是由of引起 主句中的形容词必须是能表示逻辑主语特征的形容词 常见的有 bad brave careless clever cruel foolish good 好心的 honest horrible kind lazy modest naughty nice 有教养的 polite rude silly stupid wise wrong 错误的 等 这个句型可以改写为 sb iskindtodosth Itiskindofyoutosayso Youarekindtosayso 18 Itisnecessary forsb todosth 该句型与上一个同属一个句型 如果不定式的逻辑主语是由for引起 主句中的形容词通常是表示重要性 紧迫性 频繁程度 难易 安全等情况的形容词 常见的形容词有 important necessary natural easy safe common normal hard difficult dangerous unusual rare impossible pleasant等 在 中的形容词作表语可以用从句改写 如 Itisimportantforhertocometotheparty Itisimportantthatshe should cometotheparty possibleItis was adj necessary forsb todosth clauseimportant one sdutyIt is was n one shope clause forsb todosth anhonour saidItis wasp p known that clausebelieved 形式主语 Itistheabilitytodothejob mattersnotwhereyoucomefromorwhatyouare A oneB thatC whatD it Itis was 被强调的部分 that who 句子其他成分 强调句型 高考真题 it的重要句型1 Itis 被强调部分 that 该句型是强调句型 将被强调的部分放在前面 其它部分置于that之后 被强调部分可以是主语 宾语 表语或状语 强调的主语如果是人 that可以由who换用 如果把这种句型结构划掉后 应该是一个完整无缺的句子 这也是判断强调句型与其它从句的方法 Itwasabout600yearsagothatthefirstclockwithafaceandanhourhandwasmade Itwastheythat who cleanedtheclassroomyesterday ItwasinthestreetthatImetherfather 2 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 ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar NotuntilshetookoffherdarkglassesdidIrealizeshewasafamousfilmstar Ididn trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses Itwas backhomeaftertheexperiment A notuntilmidnightdidhegoB untilmidnightthathedidn tgoC notuntilmidnightthathewentD untilmidnightwhenhedidn tgoInwhichplayis yourbrotherappears A thatwhereB thiswhenC itthatD itwhereItwasinthelab wastakenchargeofbyProfessorZhang theydidtheexperiment A where thatB which whereC that whereD which that 强调句型 被强调的部分是notuntil引导的时间状语 强调句型用于疑问句 被强调的部分是特殊疑问词或从句引导词 Inwhichplayisitthat Itis that Isit that Idon tknowinwhichplayitisthat 强调句型和各种从句 高考热点 TheParkersboughtanewhousebut willneedalotofworkbeforetheycanmovein A theyB itC oneD which2 We vebeenlookingathousesbuthaven tfound welikeyet A oneB onesC itD them3 I mmovingtothecountrysidebecausetheairthereismuchfresherthan inthecity A onesB oneC thatD those 易误辨析 it one that B A C thehousethattheParkersbought ahouse theair 1 It syears since before after that Ipaintedthisbeautifulpicture 2 Itwillbeyears since before after that Ipaintthisbeautifulpicture 3 Itwasyears since before after that Ipaintedthisbeautifulpicture 4 It sforyears since before after that Ihavepaintedthisbeautifulpicture 易误辨析 表示从since从句谓语动作发生以后到现在所经过的一段时间 译为 自从 以来已多久了 Itis 时间段 since 过去时 表示从过去某一时间到before从句谓语动作发生所经过的一段时间 译为 多长时间后才 就做了 It was 时间段 before 过去时 表示从现在起到before从句谓语动作发生所经过的一段时间 译为 多长时间后才会 就会做 It willbe 时间段 before 一般现在时 Translatethefollowing 过了很久他才回来 2 我们很久后才会见面的 3 我离开这所学校已经很久了 Itwaslongbeforehecameback Itwillbelongbeforewemeetagain ItislongsinceIleftthisschool Itis 时间段 since 过去时 It willbe 时间段 before 一般现在时 It was 时间段 before 过去时 易误辨析 在一些固定用法中考查 常见的固定用法有 makeit成功 安排在或定在某时间forgetit别提了 忘了它吧Don tmentionit别提了 表示不用谢Itdoesn tmatter没关系It That depends视情况而定Youguessedit你猜着了It shardtosay很难说It suptoyoutodosth 由你来决定做某事 Doyouwanttoliveanother100yearsormore Someexpertssaythatscientificadvanceswillonedayenablehumanstolasttensofyearsbeyondwhatisnowseenasthenaturallimitofthehumanlifespan Thereisagreatpushsothatpeoplecanlivefrom120to180years hesaid Somehavesuggestedthatthereisnolimitandthatpeoplecouldliveto200or300or500years However manyscientistswhospecializeinageingaredoubtfulaboutit 04全国D Theunderlined it refersto A agreatpushB theideaoflivingbeyondthepresentlifespanC theideaoflivingfrom200to300yearsD theconservativeestimate Readingcomprehension 1 IfIcanhelp Idon tlikeworkinglateintothenight A soB thatC itD them2 AsthebusiestwomaninNorton shemade herdutytolookafteralltheotherpeople saffairsinthattown A thisB thatC oneD it3 I dappreciate ifyouwouldliketoteachmehowtousethecomputer A thatB itC thisD you4 isourbeliefthatimprovementsinhealthcarewillleadtoastronger moreprosperouseconomy A AsB ThatC ThisD It 5 Ijustwonder thatmakeshimsoexcited A whyitdoesB whathedoesC whatisitD whatitis6 Catherineboughtapostcardoftheplaceshewasvisiting addressed to andthenposteditatthenearbypostoffice A it herB it herselfC herself herD herself herself7 It salready10o clockIwonderhowit thatshewastwohourslateonsuchashorttrip A cameoverB cameoutC cameaboutD cameup It 试题解析 1 TheParkersboughtanewhousebut willneedalotofworkbeforetheycanmovein A theyB itC oneD which It 试题解析 2 Tom smotherkepttellinghimthatheshouldworkharder but didn thelp A heB whichC sheD it It 试题解析 3 Theweatherturnedouttobeverygood wasmorethanwecouldexpect A whatB whichC thatD it 4 Doyouhaveenoughglassesforeachguesttohave A itB themC thatD one It 试题解析 5 Whydon twetakealittlebreak Didn twejusthave A itB thatC oneD this It 试题解析 6 Hewasnearlydrownedonce Whenwas wasin1998whenhewasinmiddleschool A that ItB this ThisC this ItD that this 7 Itwasnotuntil1920 regularradiobroadcastsbegan A whileB whichC thatD since It 试题解析 C 8 Coulditbeintherestaurantin youhaddinnerwithmeyesterday youleftbehindyourkeysandwallet A that whichB which thatC where thatD that where It 试题解析 B Itcouldbeintherestaurantin youhaddinnerwithmeyesterday youleftbehindyourkeysandwallet 高考试题解析 therestaurant in youhaddinnerwithmeyesterday which intherestaurant that TheUsageof it 基本用法 常见用法特殊用法 三个考点 三个句型 三个句型 三个替代词三个it后接时间段的句型 易误辨析 强调句型 形式主语 形式宾语 Summary 1 2005 全国 ThedoctoradvisedVesastronglythatsheshouldtakeaholiday but didn thelp A itB sheC whichD he正确答案 A 根据句意 医生的建议未起作用 it代替整个句子 2 2004 全国 Doyoulike here Oh yes Theair theweather thewayoflife Everythingisnice A thisB theseC thatD It正确答案 D 根据下文 提问者不能确定被问者喜欢什么 it用于不确定指代或模糊指代 3 2000 上海 Someoneisringingthedoorbell Goandsee A whoisheB whoheisC whoisitD whoitis正确答案 D 说话时 不知道对方的性别 注意在宾语从句中需用陈述语序 4 2007 全国 Haveyouheardthelatestnews No what A isitB isthereC aretheyD arethose正确答案 A it指代上文提及的latestnews 5 2006 全国 IfIcanhelp Idon tlikeworkinglateintothenight A soB thatC itD them正确答案 C help是 阻止 避免 的意思 it指代下文的事情 6 2002 北京 Hewasnearlydrownedonce Whenwas wasin1998whenhewasinMiddleSchool A that ItB this ThisC this ItD that This正确答案 A it指时间 7 2005 浙江 We vebeenlookingatthehousesbuthaven tfound welikeyet A oneB onesC itD them正确答案 A 表示任意一幢房子 8 2005 江苏 I mmovingtothecountrysidebecausetheairthereismuchfresherthan inthecity A onesB oneC thatD those正确答案 C 分析语境和逻辑关系可以知道 该空指代theair 且有inthecity后置定语修饰 9 2004 北京 TheForeignMinistersaid ourhopethatthetwosideswillworktowardspeace A ThisisB ThereisC ThatisD Itis正确答案 D由句意易知 that从句是真正的主语 it为形式主语 10 2005 上海 intheregulationsthatyoushouldnottellotherpeoplethepasswordofyoure mailaccount A WhatisrequiredB WhatrequiresC ItisrequiredD Itrequires正确答案 C it为形式主语 在此结构中done为required suggested demanded recommended等时 从句必须用should 动词原形 且should可以省略 11 2004 上海春 Itwasfoolishofhimto hisnotesduringthatimportanttest andasaresult hegotpunished A sticktoB refertoC keeptoD pointto正确答案 B 短语辨析题 referto有 参考 的意思 符合句意 12 2006 全国 Itisno arguingwithBillbecausehewillneverchangehismind A useB helpC timeD way分析 正确答案 A 为固定结构 13 2007 天津 Hedidn tmake clearwhenandwherethemeetingwouldbeheld A thisB thatC itD these正确答案 C it为形式宾语 clear后的从句为真正的宾语 14 2006 湖南 AsthebusiestwomaninNorton shemade herdutytolookafteralltheotherpeople saffairsinthattown A thisB thatC oneD it正确答案 D 真正宾语为不定式 15 2005 江苏 Don tyouthinkitnecessarythathe toMiamibuttoNewYork Iagree buttheproblemis hehasrefusedto willnotbesent thatB notbesent thatC shouldnotbesent whatD shouldnotsend what正确答案 B 表示 理应如此 需用should 动词原形 should可以省略 在做it形式宾语和形式主语的复合句中如果从句表示的是 惊奇 惋惜或者理应如此 等含义时 需用should 动词原形 should可以省略 16 2004 全国 Ilike intheautumnwhentheweatherisclearandbright A thisB thatC itD one正确答案 C love enjoy hate和like的用法相同 后接宾语从句时需用it作形式宾语 宾语从句后置 17 2003 上海 Iwouldappreciateit youcallbackthisafternoonforthedoctor sappointment A untilB ifC whenD that正确答案 B 18 1998 上海 Don t thatallthosewhogetgoodgradesintheentranceexaminationwillprovetobemostsuccessful A takeasgrantedB takethisforgrantedC takethatforgrantedD takeitforgranted正确答案 D takeitforgrantedthat 意为 想当然的认为某事 it为形式宾语 真正的宾语为that从句 另外我们也应该注意 depend rely onit 相信某事 和seetoit 负责某事 的用法 19 2008 全国 ItwasinNewZealand ElizabethfirstmetMr Smith A thatB howC whichD when正确答案 A 将itwas去掉句子结构完整 易知是考查it的强调句型 20 2004 福建 Itwaswithgreatjoy hereceivedthenewsthathislostdaughterhadbeenfound A becauseB whichC sinceD that正确答案 D 21 1997 全国 Wasit thatIsawlastnightattheconcert A youB notyouC yourselfD thatyourself正确答案 A 强调句型的一般疑问式的基本结构为 Is Wasit 被强调部分 that 将该句恢复为陈述语序 去掉Itis was that结构 易判断是强调you的强调句型 22 Is student wascaughtsmokingintheclassroom A itthat thatB thatit itC itit thatD itwhich that正确答案 A 23 2004 上海 Why Ihavenothingtoconfess youwantmetosay A WhatisitthatB WhatitisthatC HowisitthatD Howitisthat正确答案 A 强调句型的特殊疑问式的基本结构为 wh is wasitthat 其它成分 故选B 24 2005 山东 thathemanagedtogettheinformation Oh afriendofhishelpedhim A WherewasitB WhatwasitC HowwasitD Whywasit正确答案 C 25 2007 浙江 It wehadstayedtogetherforacoupleofweeks Ifoundwehadalotincommon A was whenB wasthat thatC wasn tuntil whenD wasn tuntil that正确答案 D 易判断这是考查notuntil的强调形式 26 2008 重庆 Itwasnotuntilmidnight theyreachedthecampsite A thatB whenC whileD as正确答案 A 27 2007 山东 Wheredidyougettoknowher Itwasonthefarm weworked A thatB thereC whichD where正确答案 D 答句完整形式应为 ItwasonthefarmwhereweworkedthatIgottoknowher 28 Whomadesuchastupidmistake Tom A ItwasB HewasC ThatwasD Therewas正确答案 A 答句完整形式应为 ItwasTomwhomadesuchastupidmistake 29 Itwastheuniversity hewasteaching senthimtoAmer