单数句变复数句六绝招之欧阳科创编.docx

1、单数句变复数句六绝招之欧阳科创编单数句变复数句六绝招时间：2021.02.05创作：欧阳科单数句变复数句是七年级英语试题中的一个题类，小学英语一般很少涉猎，进入初中，有的同学在做类似题时往往丢三落四，容易出错。只要注意下面的六要素，问题便迎刃而解：1人称代词主格单数变成相应的人称代词主格复数，即Iwe;youyou;she,he,itthey。 如：She is a girl. They are girls.2 am, is 变为 are。 如：Im a student. We are students.3不定冠词 a, an 要去掉。如：He is a boy. They are boys.

2、4普通单数名词要变为复数形式。如：It is a cat. They are cats.5指示代词 this, that 变为 these, those。如：This is a book. These are books.6 man, woman 作定语修饰可数名词时，要在 数上与被修饰名词保持一致。但其他名词修饰名词表示 性质时，不作变化。如：He is a man doctor.They are men doctors.This is an apple tree.They are apple trees.记住单数句变复数句的口诀。 单数句子变复数，变化规则要记住。 名词代词要变化，am,

3、is 要变are。 this, that 该咋办，these, those 替代它。 he, she, it 要变啥，全部变 they 就行了。 I要变 we 别落下，名词后面把 s/es加。 名前冠词去掉它，其余成分原样加。但是，在英语中有些单数句不能变为复数句，如：Lily is fourteen.(莉莉十四岁。)His name is Jim.(他的名字叫吉姆。)等。单数句变复数句练与析安徽巢湖 万小泉同学们都会把单数可数名词变为复数形式，可当我们在做“将单数句变为复数句”这种题目时，常常会“顾此失彼”，出现不少错误。你难道不例外吗？那就Have a try！【练习展示】将下列单数句改为

4、复数句。1. This is a chair.2. Is that a pencil-box?3. He is a good boy.4. Is it a ruler ?5. I am an English teacher.6. This is my new book.7. That blue eraser is mine.8. Whats this in English?9. I am a driver.10. She has a pencil sharpener.11. Is it a pear ?12. This is my pen.13. He likes his bike.14. I

5、s that an apple tree?15. He is a man doctor.16. Whats your telephone number?17. Where is your computer?18. Are you in Class One?19. -Is that his brother? -No, it isnt.20. -Is she my teacher? -Yes, she is.21. I am at home.22. He can have a look at this picture. 上面练习做得还顺手吗？还是看看专家是如何解析吧！【专家解析】单数句变复数句涉及

6、名词和动词的人称和数，人称代词、物主代词、指示代词的人称和数的问题。单数句变为复数句时，上述各类词都要做相应变化，其它词类不变。当然，也有一些特殊的情况。 1. These are (some) chairs.2. Are those (any) pencil-boxes?在把单数句子变为复数句子时，指示代词需要作相应的变化：thisthese, thatthese。第1、2小题即是如此。3. They are (some) good boys.4. Are they (any) rulers?5. We are English teachers.在把单数句子变为复数句子时，人称代词需要作相应

7、的变化：主格：Iwe, youyou, he/she/itthey宾格：meus, youyou, him/her/itthem。第3、4、5小题即是如此。6. These are our (my) new books.7. Those blue erasers are ours.在把单数句子变为复数句子时，物主代词需要作相应的变化：形容词性物主代词：myour, youryour, his/her/itstheir名词性物主代词：mineours, yoursyours, his/her/itstheirs。第6、7小题即是如此。8. What are these in English?9.

8、 We are (some) drivers.在把单数句子变为复数句子时，连系动词be需要作相应的变化：(be)am/isare。第8、9小题即是如此。10. They have (some) pencil sharpeners.11. Are they (any) pears?a/an表示“一个”，只能用在单数可数名词之前，在把单数句子变为复数句子时，一定要把a/an去掉，或改为some/any。第10、11小题即是如此。12. These are my pens.13. They like their bikes.在把单数句子变为复数句子时，一般情况下，形容词性物主代词不需要改为复数形式。

9、第12小题即是如此；但是当句中形容词性物主代词与句中的主语一致时，该物主代词应随主语人称的改变而变化，仍要保持一致。第13小题即是如此。14. Are those (any) apple trees.15. They are (some) men doctors.在把单数句子变为复数句子时，起修饰作用(作定语)的名词一般保持不变，只将其后的名词改为复数形式。第14小题(如apple)即是如此；但是，若man或 woman做定语修饰可数名词时，在整个句子变成复数的情况下也要变成 men 或women。第15小题即是如此。16. What are your telephone numbers？17

10、. Where are your computers？18. Are you in Class One?在把单数句子变为复数句子时，第二人称形容词性物主代词your与其人称代词you单复数同形，因此只需要改变其他部分的单复数形式即可。如第16、17、18小题即是。19. -Are those their brothers? -No, they arent.20. -Are they our teachers? -Yes, they are.在把单数句子变为复数句子时，句式不能改变，即单数句子是疑问句，变为复数句子时仍然是疑问句。第19、20小题即是。21. We are at home.22.

11、 They can have a look at these pictures.凡事都有特殊情况，在把单数句子变为复数句子时，一些固定短语(如at home，have a look等)中的单数可数名词是不可以改变的，仍然保留原先的单数形式。如第21小题中的home，第22小题中的look即是如此。【解题口诀】当同学们掌握了名词变复数的基本方法之后，再记住下面的口诀。相信单数句变复数句这一语法难点便会迎刃而解。 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

12、怕。 I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。名词定语别管它，man与woman是例外。一般规则照着用，固定短语分清楚。 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： 1 主格 I we ，you you ，he/she/it they . 2 宾格me us ，you you ，him/her/it the

13、m . 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： this these ， that those 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 myself ourselves 第二人称 yourself yourselves 第三人称 himself themselves ( herself, itself ) 例1 I am teachi

14、ng myself computer. We are teaching ourself computer. 例2 The child himself draws this picture. The children themselves draw 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 theirs 2 形容词性物主代词：my our，your your ， his/her/its their 例1 The book is mine. The books are ours. 例2

15、 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/am are 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

16、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

17、数句是疑问句时， 变为复数句时，仍然是疑问句。 例1 Whats 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：friendfriends; catcats; stylestyles; sportsports; piecepieces 2 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：busbuses; quizquizzes; foxfoxes; matchmatches; f

18、lashflashes 3 以辅音字母+y结尾的名词，将y改变为i，再加-es。 读z。 例：candycandies; daisydaisies; fairyfairies; ladyladies; storystories 4 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：tomatotomatoes; potatopotatoes; torpedotorpedoes;bingobingoes （有生命） 例：silosilos; pianopianos; photophotos; macromacros（无生命） 5 以-f或-fe结尾的名词，多为将-f或-f

19、e改变为-ves，但有例外。 读音变化：尾音f改读vz。 例：knifeknives; lifelives; leafleaves; staffstaves; scarfscarves 反例：roofroofs 6 以-ce se ze（d）ge等结尾的名词，加-s，读z。 例priceprices casecases orangeoranges 名词的不规则变化： manmen; womanwomen; childchildren; peoplepeople; fishfish; sheepsheep; deerdeer; footfeet; mousemice; toothteeth; 单

20、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 T

21、hese 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 map egg apple orange pen box bus girl boy baby knife photo tomato man woman milk water desk table bike 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

22、（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 He likes my bike.三 将下列名词变为复数形式 maps eggs apples oranges pens boxes buses girls boys babies knives photos tomatoes men women milk water desks tables bikes时间：2021.02.05创作：欧阳科