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Unit4Naturaldisasters用法集萃1.starttodosth.开始做某事2.havetodosth.必须/不得不做某事3.trytodosth.试图/尽力做某事4.itis/wasadj.todosth.做某事是......的5.affordtodosth.负担得起做某事6.havenotimetodosth.没有时间做某事7.itseemsthat+从句8.stopdoingsth.停止做某事9.asksb.todosth.让某人做某事10.beabletodosth.能够做某事11.suggestdoingsth.建议做某事12.Ittakes(sb.)sometimetodosth.（某人）花费多少时间做某事13.make+宾语+形容词使某人/某物......14.findsb.+doingsth.发现某人正在做某事15.letsb.dosth.让某人做某事16.adj./adv.enoughtodosth足够......可以做某事17.hadbetterdosth.最好做某事18.helpsb.(to)dosth.帮助某人做某事19.expectsb.todosth.期待某人做某事20.keepdoingsth.一直做某事经典句型1.It’simportanttostickwithit.坚持工作很重要。2.Ihavenotimetothinkabouttheflood.我没有时间考虑洪水。3.Ittookalongtimetobuildthehouse.建这座房子花了很长时间。4.Itseemsthatnobodyispayinganyattentiontotheflood.似乎没有人关注那场洪水。5.Itisnotagoodideatositaroundandworryabouttheflood.闲坐着担心洪水不是一个好主意。重点语法it作形式主语的用法代词it可以用来代替一个名词、一个短语、一个句子，在句中作主语或宾语。本单元学习it作形式主语的几种情况：A．it作非人称代词表示天气，日期，时间，温度，距离，价值，路程，度量，自然现象与环境等，也可模糊地指一般情形或上文的部分或整个意思。译成汉语时，it通常不一定译出来。B．it在句中作形式主语：当句中的主语是动词不定式，动名词时，往往把主语放在谓语动词之后，而用it放在句首，作形式主语。1.it作主语指时间、日期、天气、距离和气温等。It’snineo’clocknow.（指时间）Itismuchcolderthanitwasyesterday.（指天气）Itisabout5kilometresfromheretomyhome.（指距离）Itisveryhotintheclassroom.（指气温）ItisSundaytoday.（指日期）2.It作形式主语代替动词不定式，常用于以下句型中：(1)itis/wasadj.(of/for)sb.todosth.当表语是与事物的特征有关的形容词时，如easy,difficult,hard,important,necessary等，用介词for.ItisdifficultforLucytolearnphysics.Itisinterestingforustoplaybadminton.当表语是描述人的性格、品质的形容词时，如kind,nice,polite,clever,foolish,stupid等，用介词of.Itiskindofyoutohelpme.Itiscleverofthelittlechildtoworkoutsuchadifficultmathproblem.(2)ittakes/tooksb.sometimetodosth.Ittakeshimanhourtodohishomeworkeveryday.(3)itis/wasn.todosth.Itisgreatfuntohaveapartyhere.Itwasagreatpleasuretoworkwithyou.3.it作形式主语还常用于句型“itseems/appearsthat+从句”，表示“似乎/好像/看来......”Itseemsthatheknowseverything.Itappearsthatwearewrong.语法检测:一．按照句子结构的语法性，填入一个恰当的词。1._________isnoteasytoaskherstop.2.Lookatthebaby!_______isoneyearold.3.__________wasonSunday,anAmericanfriendofminecametoseeme.4.__________isaverylongwayfromheretoShenzhenBookstore.5.Ifound__________hardtogotosleep.6.Wecan’tgooutbecause________israining.二．根据括号内的提示完成下面对话。1.---Shelooksratherpale,_______(it/seems/that/wrong/something/her/with/thereis)---Yes,shegotacold2.---Didyourfriendcatchthetrainatlast?---_______(it/appears/failed/thetrain/that/tocatch/he)3.---Ithinkweshouldthinkofabetterideatosolvetheproblem.---_______(it/seems/right/that/youare)三．将下列句子替换成用it作形式主语的句子。1.tofinishthehomeworktakesalotoftimeandeffort.__________________________________________2.tofacethesituationbravelytakesagreatdealofcourage.___________________________________________________3.tocompletesuchacomplextaskisverydifficult.________________________________________________________4.tobepoliteandfriendlytoyourcolleaguesisimportant.______________________________________________________5.togofishingonweekendssoundslikeagoodidea.________________________________________________________第二节语法填空(1)Withoutproperplanning,tourismcancause____1____.(problem)Forexample,toomanytouristscancrowdpublicplaces___2___arealsoenjoyedbythecitizensofacountry.Iftourismcreatetoomuchtraffic,thecitizenswillbecome___3___(anger)andunhappy.Theybegintodisliketourists___4___totreatthemimpolitely.Theyforgethowmuchtourismcanhelpthecountry’seconomy.___5___isimportanttothinkaboutthepeopleofadestinationcountryand___6___tourismaffectsthem.Tourismshouldhelp___7___countrykeepthecustomsandbeautythatattractstourists.Tourismshouldalsoadvancethewealthand___8___(happy)oflocalcitizens.Toomuchtourismcanbeaproblem.Iftourism___9___(grow)tooquickly,peoplemustleaveotherjobstowork___10___thetourismindustry.Thismeansthatotherpartsofthecountry’seconomycansuffer.Key：1.problems2.that/which3.angry4.and5.It6.how7.a8.Happiness9.grows10.in(2)Londonwasawarded____1____2012OlympicGamesonWednesday,___2___(defeat)EuropeanrivalParisinthefinalroundofvotingtotakethegamesbacktoBritishcapital___3____thefirsttimesince1948.___4____Moscow,NewYorkandMadridwereeliminated(淘汰)inthefirstthreerounds（回合).LondonbeatParis54—50onthefourthballot(投票表决)oftheIOC.InLondoncrowdscheeredandwavedflagsas___5____watchedtheannouncementfromSingapore___6____agiantscreeninTrafalgarSquareandintheeastLondonarea___7___themainOlympiccomplex(建筑群)willbebased.Blairspenttwodaysinlobbying(游说)inSingaporebeforeleavingtohosttheG8summit(8国峰会)inScotland.“Mypromise___8___youisthatwewillbe____9___（you）verybestpartners,”Blairsaid.It’sthe____10___（twenty）bid(申办)fromBritainafterfailedattemptsbyBirminghamforthe1992OlympicsandManchesterforthe1996and2000.Key：1.the2.defeating3.for4.After5.they6.on7.where8.to9.your10.twentieth写作：如何写好一篇英语作文，我们要从以下几个方面着手：1.如何用词：措辞要遵循习惯，选词要确切达意，用词要简明扼要。例如：1.Weriseearlyeveryday.2.Wegetupearlyeveryday.这两句都意为“我们每天起床很早”,但是2更通俗易懂。又如：high和tall都有“高”的意思，但表示身高要用“tall”,表示位置高用“high”，用词时，我们要尽量做到：宁用常用词，不用偏僻词；宁用具体词，不用抽象词。例如：1.HisnameiscalledTom..2.HisnameisTom.以上两次都表示“他叫汤姆“这样的信息，但是2更简单明了。2.如何写好句子：初中英语书面表达多数是提示性写作，所以只要用正确的句子表达出所给图画或提纲等提示的内容就能得到高分。常见方法如下：直译法：简单说就是直接翻译句子，用合适的词汇短语，结合一定的语法知识，按照句子的结构特点直接用英语写出对应的句子即可。例如：他不喜欢踢足球：Hedoesn’tlikeplayingfootball.分