Unit 3 Section Four Grammar and usage 2 课件.ppt

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1、Unit3SectionFourGrammarandusage2课件Theman_______(call)“Goodhusband”.iscalledThepetdog_______________(treat)byveterinary.isbeingtreatedAfrog__________(catch)byabigbirdjustnow.wascaughtAnargument_____already____________________(putforward).hasbeenputforwardbe+doneThepassivev

2、oicePointouttheverb,thesubjectandtheobjectinthefollowingsentences:Wekeptfoodinthefridge.Wemustclosethewindowsandthedoor.SV.O.SV.OFoodwaskept(byus)inthefridge.Thewindowsandthedoormustbeclosed.Howcanwechangeasentenceintopassivevoice?1.Findouttheobjectofthesentenceanduseitas

3、thesubjectofthesentencewiththepassivevoice.2.Decidethetenseofthesentenceandusetherelatedformofitspassive.3.Ifnecessary,use“by”tojointheformersubject,whichshouldbeputintoitsobjectform.Whendoweusethepassivevoice?Manyhouseswillbebuilthere.不知道或没必要指出动作的执行者。Thesong“TheEastisRed

4、”waswrittenbyapoorpeasant.强调动作的承受者。TheplanwassupportedbythosewhowishedtohavemorechancestospeakEnglish.动作的执行者有较长的修饰语。Youarerequestedtoattendthemeeting.出于礼貌,不愿意说出动作的执行者。Changethefollowingsentencesintothepassivevoice:1.Allofuslikeher.2.Wearediscussingthequestion.3.Wehaveputo

5、ffthemeeting.4.Iwilldevelopmypicturenextweek.Sheislikedbyallofus.Thequestionisbeingdiscussed.Themeetinghasbeenputoff.Mypicturewillbedevelopednextweek.be+doneam/is/are一般现在时am/is/are+being现在进行时shall/will+be一般将来时have/has+been现在完成时be+donewas/were一般过去时was/were+being过去进行时would+

6、be过去将来时had+been过去完成时PleasereadPoint3onPage48.Fillintheblankswiththerightformofthewordsgiven:I__________(give)anewbookbymyfatheronmybirthday.English__________(find)veryuseful.3.Thework______________(finish)tomorrow.4.Theflowers_______________(water)bythemnow.wasgivenisfoun

7、dwillbefinishedarebeingwatered5.Therailway______________(build)thistimelastyear.6.Thenewway____already_________(build).7.Thenewrailway____________(build)bytheendoflastyear.8.Hetoldmethesportsmeeting_____________(hold)thenextmonth.9.Rice________(grow)inthesouthoftheStates.

8、wasbeingbuilthasbeenbuilthadbeenbuiltwouldbeheldisgrownChangethefollowingsentencesintopassivevoi