单数句变复数句(附练习及答案)

1、单数句变复数句歌谣:单数句变复数句单数句变复数句，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 1 This is a book .例 2 Is that a pen3反身代词：第一人称例 2 I like her. We lik

2、e them.2指示代词由单数变复数:单数复数thisthesethatthoseThese are (some) books .Are those (any) pens?myself ourselves第二人称yourselfyourselves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 themselves draw

3、these 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 theirshis/her/its their2 形容词性物主代词： my our， your your ，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

4、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/am are例 1 I am a teacher. We ar（e 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

5、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 ar（e 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 th？is 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

6、是清辅音读s,结尾是浊辅音或元音读zo例：friend ffriends; cat fcats; style fstyles; sport fsports; piece fpieces2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：busfbuses; quiz fquizzes; foxffoxes;matchfmatches; flash fflashes3以辅音字母+y结尾的名词，将y改变为i,再加-es。读z。例：candyfcandies; daisy fdaisies; fairyffairies;lady fladies; story fstor

7、ies4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 ftomatoes; potato fpotatoes;torpedo ftorpedoes;bingo f bing oes 生命)例：silo fsilos; piano fpianos;photo f photos; macro fmac ros 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：knife fknives; life flives; leaf fleaves; staff fstaves;scarf f scarve蚊伤

8、J： roof froofs6以-ce se ze(d) ge等结尾的名词，力口 -s,读z。例 price prices case cases orange oranges名词的不规则变化：marr men; womans women; child fchildren; people fpeople;fishffish; sheepfsheep; deer fdeer; footffeet;mouses mice; tooth fteeth;单数句变复数句精炼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 l

9、ike 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.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（ s

10、ome） books .9 Are those（ any） pens？10They like my bikes.将下列名词变为复数形式单数句变复数句精炼答案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.将下列复数句变为单数句1 What is this？2 He likes his bike3 This is my book .4 This is a book .5 Is that a pen？6 She is a girl .7 I like her.8 T