英语单数句变复数句.ppt

英语单数句变复数句,马寨小学曹秋霞,1、人称代词由单数变复数：,第一人称：单数（主格）I，复数we;单数（宾格）me,复数us;第二人称：单复数，主宾格：全是you,第三人称：单数（主格）he,she,it,复数：they；单数（宾格）him,her,it,复数：them；例如：Sheisagirl.复数：Theyaregirls.Ilikeher.复数Welikethem.,2、指示代词由单数变复数,单数this,复数these;单数that，复数those;例如：Thisisabook.复数Theseare(some)books.例如：Isthatapen?Arethose(any)pens?,3、物主代词由单数变复数,第一人称：单数（形容词性物主代词）my,复数our;单数（名词性物主代词）mine,复数ours第二人称：your;yours;第三人称：单数（形容词性物主代词）his，her,its,复数：their；单数（名词性物主代词）his,hers,its,复数：theirs;例如：Thebookismine.Thebooksareours.例如：Thisisherpen.Thesearetheirpens.,4、一般情况下，形容词性物主代词在单数句变复数句时不变。,例如：Thisismybook.Thesearemybooks.,5、当句中形容词性物主代词与句中的主语一致时，形容词性物主代词应随主语人称的变化而变化，仍要保持一致。,例如：Helikeshisbike.Theyliketheirbikes.,6、连系动词由单数变复数：is/am变成are,例如：Iamateacher.Weare(some)teachers.,7、a/an表示一个，只能用在单数名词前，当单数句变复数句时，一定要把a/an去掉，或改为some/any。,例如：Thisisabook.Theseare(some)books.例如：Isthatapen?Arethose(any)pens?,8、当名词作定语或在介词短语中作介词宾语充当除宾语以外的其他成分时，该名词不变。,例如：Heisaboystudent.Theyare(some)boystudents.(man和woman)除外。例如：Sheisawomanworker.Theyare(some)womenworkers.,9、单数句变为复数句时，句式不能改变，即单数句是疑问句时，变为复数时，仍然是疑问句。,例如：Whatsthis?Whatarethese?例如：Shelikeshisbike.Theyliketheirbikes.,单数句变复数句口诀：,单数句子变复数，变化规则要记住。名词代词要变化，am,is要变are。this,that变成啥，these,those来替它。he,she,it要变啥，全部变they不用怕。I要变we莫落下，名词后面把s/es加。名前冠词去掉它，其余成分原样加。,将下列单数句变为复数句,1.Thisisabook.2.Isthatapen?3.Sheisagirl.4.Ilikeher.5.Thebookismine.6.Thisisherpen.7.Iamateacher.8.Heisaboystudent.9.Sheisawomanworker.10.Helikeshisbike.,Thesearesomebooks.,Arethoseanypens?,Theyaregirls.,Welikethem.,Thebooksareours.,Thesearetheirpens.,Weareteachers.,Theyareboystudents.,Theyaresomewomenworkers.,Theyliketheirbikes.,将下列复数句变为单数句,1.Whatarethese?2.Theyliketheirbikes.3.Thesearemybooks.4.Theseare(some)books.5.Arethose(any)pens?6.Theyaregirls.7.Welikethem.8.Theseare(some)books.9.Arethose(any)pens?10.Theylikemybikes.,Whatisthis?,Shelikesherbike.,Thisismybook.,Thisisab