Unit8Topic2重点语法知识点讲解课件仁爱科普版（2012）八年级英语下册

Topic2Wecandesignourownuniforms.Unit8OurClothesGrammar特殊疑问句引导宾语从句的“五要素”要素一:在引导词上，要将疑问代词who/whose/what/which或疑问副词when/where/why/how变为连接代词或连接副词，来引导宾语从句。Eg:你能告诉我这是谁的自行车?Whosebikeisthis?Canyoutellme?=Canyoutellmewhosebikethisis?要素二:宾语从句的时态应与主句的时态保持一致。Eg:他问火车什么时候到达火车站。Whenwillthetrainarriveattherailwaystation?Heaskedme.→Heaskedmewhenthetrainwouldarriveattherailwaystation.【温馨提示】特殊疑问句变为宾语从句后，句末用问号还是用句号完全取决于主句的句式:如主句为陈述句、祈使句，句末就用句号;如主句是疑问句，句末就用问号。我不知道音乐会今晚什么时候开始。Idon’tknowwhentheconcertwillstarttonight.你知道音乐会今晚什么时候开始?Doyouknowwhentheconcertwillstarttonight?要素三:特殊疑问句在宾语从句中，其语序上要改为陈述句语序。Eg:他问我最喜欢哪门学科。Whichsubjectdoyoulikebest?Heaskedme.→HeaskedmewhichsubjectIlikedbest.【温馨提示】疑问句中主语之前的助动词若是do/does/did，变为宾语从句时，要先将其去掉，谓语动词再根据时态作相应的变化。Eg:你能告诉我你昨天为什么参加晚会迟到了?Whydidyoucometothepartylateyesterday?Canyoutellme?→Canyoutellmewhyyoucametothepartylateyesterday?要素四:特殊疑问词在句中作主语，变为宾语从句时语序不变(时态应作相应变化)。Eg:老师问谁能回答这个问题。Whocananswerthequestion?Theteacherasked.→Theteacheraskedwhocouldanswerthequestion.要素五:特殊疑问句在宾语从句中，要是主从句人称一致，一般可将宾语从句复合句改为简单句。Eg:我想知道如何给你发个电子邮件。如:IwonderhowIcansendane-mailtoyou.→Iwonderhowtosendane-mailtoyou.Key-points(20mins)1.Itdependsonwhowilldesignouruniforms.◆dependon取决于，依赖Eg:你不能指望别人来帮助你。Youcan'tdependonotherstohelpyou.◆who引导宾语从句，在从句中做主语eg:Let'sfindoutwhobrokethewindow.2.Ithinkwecandesignourownuniformsbyourselves.◆byoneself独立地eg:Icanrepairthebikebymyself.修自行车我自己能行。◆byoneself又意为

独自，单独eg:Tomlivesbyhimself.

汤姆一个人住。3....butsometimeswewearplainclothestocarryoutspecialtasks.

◆carryout执行，完成eg:Theycarryouttheplanindetail.他们一丝不苟地执行计划。Wecarriedoutthetaskwithoutdifficulty.我们顺利完成了任务。4.CanyoutellmewhatIshouldwearhere?区分：wear,puton,dress,haveon,bein作穿时的用法①wear强调穿的状态,可用于进行时态；eg.Hewaswearingabrownuniform.②puton强调穿的动作；eg.Sheputonhercoatandwentout.③dress(sb.)in+衣服\颜色；eg.Theplayerwerealldressedalikeinredshoes.④haveon和bein都只穿的状态，但前者不用于进行时，in可以和表示服装或颜色的名词一起搭配eg.TonyhasaredT-shirton.=TonyisinaredT-shirt.5.Youshouldchangeyourleathershoes.changen.零钱v.改变changeone’smind某人改变主意6.Youshouldtakeoffyourshoeswhenyouentersomeone’shomeinJapan.(1)takeoff脱下(衣物),摘掉；起飞；取下

(2)enter进入，进去；参加，加入

7.Itisimportanttowearsuitableclothesoneveryoccasion.在每一个场合衣着得体是很重要的。(1)本句型为：Itis+adj.+(forsb.)todosth.可与Itis+adj.+that...句型转换。eg:对我们来说吃早餐时很重要的Itisimportantforustohavebreakfast.Itisimportantthatweshouldhavebreakfast.(2)oneveryoccasion在每一个场合，occasion为可数名词。onaspecialoccasion在特殊场合ondifferentoccasions在不同场合8.Peopleshoulddresscorrectly.dressn裙子v穿衣dress(sb.)in+衣服\颜色eg:他总是穿黑色衣服。Healwaysdressesinblack9.Firefighterswearspecialcoatsandhelmetstoprotectthemselvesfromheatandfallingceilings.(2)protect...from...“保护......免受......的伤害”

e.g.我们戴太阳镜是为了保护眼睛免受阳光的伤害。Wewearsunglassestoprotectoureyesfromthesun.(3)fallingceiling“正在坠落的天花板”

“falling”现在分词作定语，强调正在发生

e.g.therisingsunboilingwater10.Whendoctorswearuniforms,itiseasyforpatientstofindthem.当医生穿上制服时，病人很容易就能找到他们。patientn.病人adj.忍耐的，有耐心的bepatientwithsb.对某人有耐心e.g.Lucyisagoodteacher.Sheispatientwiththepupils.11.Whatpeopleweardependsontheirlikesanddislikes.(1)whatpeoplewear在句中充当主语，谓语动词用单数形式。(2)dependon=dependupon依靠，依赖，随......决定，取决于。(3)句中的like是名词，意为“喜好，爱好”，反义词为dislike，通常用复数。E.g:我们都各有不同的喜好。Weallhavedifferentlikesanddislikes.12.PeopleinCanadaandtheUnitedStatesusuallywearsuitstoworkinoffices,aswellasformoreformaloccasions,justaspeopledoinChina.

aswellas还有，除......之外(也)。置于句中。Eg:他们在城里有一栋房子，在乡下还有一座别墅。Theyownahouseinthecityaswellasavillainthecountryside.13.Peopleinthecitiesaroundtheworld