【#文档大全网# 导语】以下是®文档大全网的小编为您整理的《单数句变复数句规律总结与练习》,欢迎阅读!
单数句变复数句规律总结
一、指示代词由单数变复数: this → these that → those 二、人称代词的变化:I → we she/he/it → they you不变 三、 be动词的变化:am/is → are
四、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; 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:bus→buses; fox(狐狸)→foxes; match(比赛)→matches; flash→flashes 3. 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; family→families; lady→ladies; story→stories
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:tomato→tomatoes; potato→potatoes;(有生命)
piano→pianos; photo→photos(无生命)
5. 以-f或-fe结尾的名词,多为将-f或-fe改变为-v +es 例:knife→knives; life→lives; leaf→leaves; scarf→scarves反例:roof→roofs 名词的不规则变化:
man→men; woman→women; child→children; people(人)→people; fish(鱼)→fish; sheep(羊)→sheep; foot→feet; mouse (老鼠)→mice; (牙齿)tooth→teeth;
一去掉:a/an表示一个,用在单数名词前,当单数句变复数句时,一定要把去掉。 一保持:原句子中的形容词,介词,副词,定冠词the保持不变,如果原句是疑问句,变为复数句以后句式也不变。
一、把下列句子变复数句
1 、This is a dog.___________________________________________ 2、 That is Jack’s book.________________________________________ 3、 I am a student._________________________________________ 4、 It is my pen._____________________________________________ 5、 What is this?_____________________________________________ 6、 He is a policeman._________________________________________ 7、There is a wolf in the garden._________________________________ 二、把下列复数句变单数句
1、My books are new. ________________________________________ 2、These are his new friends.__________________________________ 3、Those glasses are on the table._______________________________ 4、Sophie’s shirts are white.__________________________________ 5、There are some desks in the classroom._________________________ 6、These are my favorite pencils.________________________________ 三、写出下列单词的复数形式。
1.goose______ 2.box______ 3.wife______ 4. potato ______ 5. sheep______ 6.monkey______ 7.stomach _______ 8. hand______ 9. fish ______ 10. foot_____ 11. fish _________ 12. family________ 13.baby_______ 14. man_______ 15. cat ______ 16.woman ______ 17.tomato 18.life 21. city 20.child 19. strawberry
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