SectionⅢGrammar——复习被动语态和by+v
ing形式语境自主领悟先观察原句①RiceisalsogrowninmanyotherAsiancountries
②ResearcherswerebroughtinfromalloverChinatodevelopthenewsystem
③Theresearchwassupportedbythegovernment
④InPakistanricewillbegrowninmanypartsofthecountry
⑤ThenewhybridricehasbeendevelopedbytheYuanLongpingHightechAgriculturalCompanyofChina
⑥Theshopclosesat6:00pmeveryday
⑦Theappletastesgood
⑧Thenewproductbythecompanysellswell
⑨Openthedoorbywindingthehandle
⑩Peopleusuallygreeteachotherbyshakinghands
后自主感悟1
①句采用了一般现在时的被动语态,其构成形式为:am/is/are+done
②③句采用了一般过去时的被动语态,其构成形式为:was/were+done
④⑤句分别用了一般将来时和现在完成时的被动语态
⑥⑦⑧句中谓语动词以主动形式表示被动意义
⑨⑩句中,by+v
ing形式表示通过……方式
1.各种时态的被动语态的构成被动语态表示主语为动作的承受者,只有及物动词才有被动语态,被动语态由“be+及物动词的过去分词”构成
(1)一般现在时被动语态的构成:am/is/are+doneBeforeyouleavethelab,makesuretheelectricityisturnedoffandth