必修二unit2语法课件.ppt

《必修二unit2语法课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、WelcomeWelcome大师兄！师傅被妖怪抓走了！二师兄！师傅被妖怪抓走了！大师兄！二师兄被妖怪抓走了！大师兄！师傅和二师兄都被妖怪抓走了师傅被妖怪抓走了Hewascaughtbyamonster.PassiveVoice被动语态HowtodescribethepicturesTheriverwasseriouslypolluted.Sometreeshavebeencutdown.WhatisthePassiveVoice?被动语态一、什么是语态？语态是英语动词的一种表现形式，用来说明主语和谓语动词之间的关系。二、语态的种类：（1）主

2、动语态（2）被动语态三、什么是主动语态？什么是被动语态？四、被动语态的构成：(八种时态和情态动词的被动语态）英语动词有两种语态：主动语态(theActiveVoice)被动语态(thePassiveVoice)A.主动语态表示主语是动作的执行者。B.被动语态表示主语是动作的承受者。Weplantedthetree.Thetreewasplantedbyus.1.Hetookgoodcareofhislittlebrotheryesterday.2.Wecleanedourclassroomjustnow.3.Theyusedthisroom

3、forresting.4.Wewereaskedtohelpthem.5.Hewasgivensomebooks.6.Thedoorwaslockedbymonitor.LeadinRockets________(use)tosendupsatellites．areusedTheman_________(call)“Goodhusband”.iscalled火箭发射图Therocket_______________(sendup)intospace．isbeingsentup砍伐图Trees_______________(cut)down.

4、Fewplaces_______________(leave)forthetigerstolive.arebeingcutwillbeleft拳击图Aboxer_________________(beat)down．hasbeenbeatenRocketsareusedtosendupsatellites．Themaniscalled“Goodhusband”.Therocketisbeingsentupintospace．Aboxerhasbeenbeatendown．Fewplaceswillbeleftforthetigerstoli

5、ve.theStructureisbe+及物动词的过去分词(be+V.P.P)被动语态的结构：被动语态由“助动词be+及物动词的过去分词”构成，助动词be有人称、数的变化,其变化规则与be作为连系动词时一样。如：Thedeskismadeofwood.Thedesksaremadeofwood.Heisaskedaquestionbytheteacher.Iwasgivenanicepresentbymyfriendyesterday.1.规则动词的过去分词：1)一般情况在动词原形后加-edwatch---watched2)以不发音e结尾的

6、加-dpractice---practiced3)以辅音加y结尾的，去y变i加-edstudy---studied4)以重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加-edstop---stopped2.不规则动词的过去分词：amisarebeenhavehashaddodonewritewrittengogone一.何时使用被动语态1.不知道谁是动作的执行者或没有必要Paperismadefromwood.Hewaswoundedinthefight.2.需要强调动作的承受者时Booksandnewspapersinther

7、eadingroommustn'tbetakenaway.Hewasawardedfirstprizeinthatcontest.3为了使语气婉转，避免提及自己或对方而使用被动语态，或由于修饰的需要，使用被动语态，使句子得以更好的安排。Theconstructionofthenewlabmustbecompletedbytheendofnextmonth.Electricityisusedtorunmachines.Themotorbikeisriddentohisfactory(byhim)everyday.Presentam/isare

8、+doneWecallthesnowmanMrStrong.ThesnowmaniscalledMrStrong(byus).Acomputerisusedinourclasse