单数句变复数句(附练习及答案)

单数句变复数句单数句变复数句歌谣：单数句变复数句 , 代词四变要记住。人称,指示,反身变 物主代词看一看。连系动词 am is 变成 are 。冠词 a an 要去掉，改为 some,any也可以。名词做定语，介宾不要变；有man 和 woman 也例外。句式不要变，十全十美题做完。1 人称代词由单数变复数：主格iweyouyouhe/she/itthey宾格meusyouyouhim/her/itthem例 1 she is a girl . they are girls .例 2 i like her. we like them.2指示代词由单数变复数： 单数复数thisthesethatthose例 1 this is a book .these are （ some ）books .例 2 is that a pen ？are those （any ）pens ？3反身代词：第一人称myselfourselves第二人称yourselfyourselves精品资料第三人称himselfthemselves ( herself, itself )例 1 i am teaching myself computer.we are teaching ourself computer.例 2 the child himself draws this picture.the children themselvesdrawthese pictures.4物主代词由单数变复数：1名词性物主代词： mine ours，yours yours， his/hers/its theirs2 形容词性物主代词： myour ，your your，his/her/its their例 1 the book is mine. the books are ours.例 2 this is her pen. these are their pens.5 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 1 this is my book .these are my books .6 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 1 he likes his bike.they like their bikes.7 连系动词由单数变复数： is/amare例 1 i am a teacher. we are（ some ）teachers.8 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 1 this is a book .these are （some ） books .例 2 is that a pen ？are those （any ）pens ？9 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它成分时，该名词不变。例 1 he is a boy student .they are（some ） boy students.（man 和 woman ）除外。例 2 she is a woman worker.they are （ some ）women workers.10 单数句变为复数句时，句式不能改变，即单数句是疑问句时， 变为复数句时，仍然是疑问句。例 1 what s this ？what are these ？例 2 she likes his bike.they like their bikes.可数名词的复数形式的部分规则1 一般情况加 s，结尾是清辅音读 s，结尾是浊辅音或元音读z。例： friend friends; cat cats; style styles; sport sports;piece pieces2 以 s、x、ch、sh 结尾的词，在该词末尾加上后辍-es 构成复数。读iz。例： bus buses; quiz quizzes; fox foxes; match matches;flash flashes3 以辅音字母 +y 结尾的名词，将y 改变为 i，再加 -es 。读z。例： candy candies; daisy daisies; fairy fairies; lady ladies; story stories4 以-o 结尾的名词，有生命的加-es ，无生命的加 -s 构成复数。读z。例： tomato tomatoes; potato potatoes;torpedo torpedoes;bingo bingoes（有生命）例： silosilos; piano pianos;photo photos; macro macros （无生命）5 以-f 或-fe 结尾的名词，多为将 -f 或-fe 改变为 -ves ，但有例外。读音变化：尾音 f 改读vz。例： knifeknives; life lives; leaf leaves; staff staves;scarf scarves反例： roof roofs6 以-ce se ze （ d） ge 等结尾的名词，加 -s，读z。 例 price pricescase casesorange oranges名词的不规则变化：man men; woman women; child children; people people; fish fish; sheep sheep; deer deer; foot feet;mouse mice; tooth teeth;单数句变复数句精炼一 将下列单数句变为复数句1 this is a book . 2 is that a pen ？ 3 she is a girl .4 i like her.5 the book is mine.6 this is her pen.7 i am a teacher.8 he is a boy student .9 she is a woman worker.10 he likes his bike.二 将下列复数句变为单数句1 what are these？ 2 they like their bikes.3 these are my books .4 these are （some ）books . 5 are those （ any ）pens ？ 6 they are girls .7 we like them.8 these are （ some ）books . 9 are those （any ）pens ？ 10they like my bikes.三 将下列名词变为复数形式单数句变复数句精炼答案一 将下列单数句变为复数句1 these are （some ）books .2 are those （ any ）pens ？ 3 they are girls .4 we like them.5 the books are ours. 6 these are their pens.7 we are （some ）teachers.8 they are （some ） boy students.9 they are （some ）women workers. 10 they like their bikes.二 将下列复数句变为单数句1 what is this ？2 he likes his bike 3 this is my book . 4 this is a book .5 is that a pen ？6 she is a girl . 7 i like her.8 this is a book .9 is that a pen ？10