（精心整理）單數(shù)句變復(fù)數(shù)句六絕招

1、單數(shù)句變復(fù)數(shù)句六絕招單數(shù)句變復(fù)數(shù)句是七年級英語試題中的一個題類，小學(xué)英語一般很少涉獵，進(jìn)入初中，有的同學(xué)在做類似題時往往丟三落四，容易出錯。只要注意下面的六要素，問題便迎刃而解：1人稱代詞主格單數(shù)變成相應(yīng)的人稱代詞主格復(fù)數(shù)，即Iwe;youyou;she,he,itthey。 如：She is a girl. They are girls.2 am, is 變?yōu)?are。 如：I'm a student. We are students.3不定冠詞 a, an 要去掉。如：He is a boy. They are boys.4普通單數(shù)名詞要變?yōu)閺?fù)數(shù)形式。如：It is a cat.

2、They are cats.5指示代詞 this, that 變?yōu)?these, those。如：This is a book. These are books.6 man, woman 作定語修飾可數(shù)名詞時，要在 "數(shù)"上與被修飾名詞保持一致。但其他名詞修飾名詞表示 "性質(zhì)"時，不作變化。如：He is a man doctor.They are men doctors.This is an apple tree.They are apple trees.記住單數(shù)句變復(fù)數(shù)句的口訣。 單數(shù)句子變復(fù)數(shù)，變化規(guī)則要記住。 名詞代詞要變化，am, is 要變a

3、re。 this, that 該咋辦，these, those 替代它。 he, she, it 要變啥，全部變 they 就行了。 I要變 we 別落下，名詞后面把 s/es加。 名前冠詞去掉它，其余成分原樣加。但是，在英語中有些單數(shù)句不能變?yōu)閺?fù)數(shù)句，如：Lily is fourteen.(莉莉十四歲。)His name is Jim.(他的名字叫吉姆。)等。單數(shù)句變復(fù)數(shù)句練與析安徽巢湖 萬小泉同學(xué)們都會把單數(shù)可數(shù)名詞變?yōu)閺?fù)數(shù)形式，可當(dāng)我們在做“將單數(shù)句變?yōu)閺?fù)數(shù)句”這種題目時，常常會“顧此失彼”，出現(xiàn)不少錯誤。你難道不例外嗎？那就Have a try！【練習(xí)展示】將下列單數(shù)句改為復(fù)數(shù)句。1.

4、 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. Is that

5、 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. 上面練習(xí)做得還順手嗎？還是看看專家是如何解析吧！【專家解析】單數(shù)句變復(fù)數(shù)句涉及名詞和動詞的

6、人稱和數(shù)，人稱代詞、物主代詞、指示代詞的人稱和數(shù)的問題。單數(shù)句變?yōu)閺?fù)數(shù)句時，上述各類詞都要做相應(yīng)變化，其它詞類不變。當(dāng)然，也有一些特殊的情況。 1. These are (some) chairs.2. Are those (any) pencil-boxes?在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，指示代詞需要作相應(yīng)的變化：thisthese, thatthese。第1、2小題即是如此。3. They are (some) good boys.4. Are they (any) rulers?5. We are English teachers.在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，人稱代詞需要作相應(yīng)的變化：主格

7、：Iwe, youyou, he/she/itthey賓格：meus, youyou, him/her/itthem。第3、4、5小題即是如此。6. These are our (my) new books.7. Those blue erasers are ours.在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，物主代詞需要作相應(yīng)的變化：形容詞性物主代詞：myour, youryour, his/her/itstheir名詞性物主代詞：mineours, yoursyours, his/her/itstheirs。第6、7小題即是如此。8. What are these in English?9. We ar

8、e (some) drivers.在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，連系動詞be需要作相應(yīng)的變化：(be)am/isare。第8、9小題即是如此。10. They have (some) pencil sharpeners.11. Are they (any) pears?a/an表示“一個”，只能用在單數(shù)可數(shù)名詞之前，在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，一定要把a(bǔ)/an去掉，或改為some/any。第10、11小題即是如此。12. These are my pens.13. They like their bikes.在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，一般情況下，形容詞性物主代詞不需要改為復(fù)數(shù)形式。第12小題即

9、是如此；但是當(dāng)句中形容詞性物主代詞與句中的主語一致時，該物主代詞應(yīng)隨主語人稱的改變而變化，仍要保持一致。第13小題即是如此。14. Are those (any) apple trees.15. They are (some) men doctors.在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，起修飾作用(作定語)的名詞一般保持不變，只將其后的名詞改為復(fù)數(shù)形式。第14小題(如apple)即是如此；但是，若man或 woman做定語修飾可數(shù)名詞時，在整個句子變成復(fù)數(shù)的情況下也要變成 men 或women。第15小題即是如此。16. What are your telephone numbers？17. Wher

10、e are your computers？18. Are you in Class One?在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，第二人稱形容詞性物主代詞your與其人稱代詞you單復(fù)數(shù)同形，因此只需要改變其他部分的單復(fù)數(shù)形式即可。如第16、17、18小題即是。19. -Are those their brothers? -No, they arent.20. -Are they our teachers? -Yes, they are.在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，句式不能改變，即單數(shù)句子是疑問句，變?yōu)閺?fù)數(shù)句子時仍然是疑問句。第19、20小題即是。21. We are at home.22. They

11、can have a look at these pictures.凡事都有特殊情況，在把單數(shù)句子變?yōu)閺?fù)數(shù)句子時，一些固定短語(如at home，have a look等)中的單數(shù)可數(shù)名詞是不可以改變的，仍然保留原先的單數(shù)形式。如第21小題中的home，第22小題中的look即是如此?！窘忸}口訣】當(dāng)同學(xué)們掌握了名詞變復(fù)數(shù)的基本方法之后，再記住下面的口訣。相信單數(shù)句變復(fù)數(shù)句這一語法難點(diǎn)便會迎刃而解。 單數(shù)句子變復(fù)數(shù)，變化規(guī)則要記住。 名詞代詞要變化，am, is要變are。 this, that變成啥，these, those來替它。 he, she, it要變啥，全部變they不用怕。 I變w

12、e莫落下，名詞后面把-s/-es加。 名前冠詞去掉它，其余成分原樣加。名詞定語別管它，man與woman是例外。一般規(guī)則照著用，固定短語分清楚。 單數(shù)句變復(fù)數(shù)句 單數(shù)句變復(fù)數(shù)句歌謠： 單數(shù)句變復(fù)數(shù)句, 代詞四變要記住。人稱,指示,反身變 物主代詞看一看。連系動詞 am is 變成 are。冠詞a an要去掉，改為some,any也可以。名詞做定語，介賓不要變；有man和woman也例外。句式不要變，十全十美題做完。 1人稱代詞由單數(shù)變復(fù)數(shù)： 1 主格 I we ，you you ，he/she/it they . 2 賓格me us ，you you ，him/her/it them . 例1

13、 She is a girl . They are girls . 例2 I like her. We like them.2 指示代詞由單數(shù)變復(fù)數(shù)： 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 反身代詞： 第一人稱 myself ourselves 第二人稱 yourself yourselves 第三人稱 himself themselves ( herself, itself ) 例1 I am teaching mys

14、elf computer. We are teaching ourself computer. 例2 The child himself draws this picture. The children themselves draw these pictures. 4 物主代詞由單數(shù)變復(fù)數(shù)： 1 名詞性物主代詞：mine ours ，yours yours ， his/hers/its theirs 2 形容詞性物主代詞：my our，your your ， his/her/its their 例1 The book is mine. The books are ours. 例2 This

15、is her pen. These are their pens. 5 一般情況下，形容詞性物主代詞在單數(shù)句變復(fù)數(shù)句時不變。 例1 This is my book . These are my books . 6 當(dāng)句中形容詞性物主代詞與句中的主語一致時，形容詞性物主代詞 應(yīng)隨主語人稱的變化而變化， 仍要保持一致。 例1 He likes his bike. They like their bikes. 7 連系動詞由單數(shù)變復(fù)數(shù) ：is/am are 例1 I am a teacher. We are（some） teachers. 8 a/an表示一個，只能用在單數(shù)名詞前，當(dāng)單數(shù)句變復(fù)數(shù)句時

16、， 一定要把a(bǔ)/an去掉，或改為some/any。 例1 This is a book . These are（some）books . 例2 Is that a pen？ Are those（any）pens？ 9 當(dāng)名詞作定語或在介詞短語中作介詞賓語充當(dāng)除賓語以外的 其它成分時， 該名詞不變。 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 單數(shù)句變?yōu)閺?fù)數(shù)句時，句式不能改變，即單數(shù)句是疑問句

17、時， 變?yōu)閺?fù)數(shù)句時，仍然是疑問句。 例1 Whats this？ What are these？ 例2 She likes his bike. They like their bikes.可數(shù)名詞的復(fù)數(shù)形式的部分規(guī)則 1 一般情況加s，結(jié)尾是清輔音讀s，結(jié)尾是濁輔音或元音讀z。 例：friendfriends; catcats; stylestyles; sportsports; piecepieces 2 以s、x、ch、sh結(jié)尾的詞，在該詞末尾加上后輟-es構(gòu)成復(fù)數(shù)。 讀iz。 例：busbuses; quizquizzes; foxfoxes; matchmatches; flashfl

18、ashes 3 以輔音字母+y結(jié)尾的名詞，將y改變?yōu)閕，再加-es。 讀z。 例：candycandies; daisydaisies; fairyfairies; ladyladies; storystories 4 以-o結(jié)尾的名詞，有生命的加-es，無生命的加-s構(gòu)成復(fù)數(shù)。 讀z。 例：tomatotomatoes; potatopotatoes; torpedotorpedoes;bingobingoes （有生命） 例：silosilos; pianopianos; photophotos; macromacros（無生命） 5 以-f或-fe結(jié)尾的名詞，多為將-f或-fe改變?yōu)?v

19、es，但有例外。 讀音變化：尾音f改讀vz。 例：knifeknives; lifelives; leafleaves; staffstaves; scarfscarves 反例：roofroofs 6 以-ce se ze（d）ge等結(jié)尾的名詞，加-s，讀z。 例priceprices casecases orangeoranges 名詞的不規(guī)則變化： manmen; womanwomen; childchildren; peoplepeople; fishfish; sheepsheep; deerdeer; footfeet; mousemice; toothteeth; 單數(shù)句變復(fù)數(shù)句

20、精煉一 將下列單數(shù)句變?yōu)閺?fù)數(shù)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 將下列復(fù)數(shù)句變?yōu)閱螖?shù)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 將下列名詞變?yōu)閺?fù)數(shù)形式 map egg appl