内容正文:
六年级上册Unit4一般现在时动词三单形式专题
· 动词原形变为动词第三人称单数的方法:
(1) 直接在动词词尾加s
如:like-likes cook-cooks
(2) 以s/x/sh/ch/o结尾的,在其后加es
如:fix-fixes pass-passes watch-watches wash-washes do-does
(3) 以辅音字母加y结尾的动词,改y为i再加es
如: study-studies worry-worries
(4) 特殊变化
如:have-has be-am, is, are
Tips:句子中如有助动词does(doesn't)动词用原型
· Does he like doing word puzzles?助记:does原形(打回原形)
· Amy doesn’t go to school on foot.
· 易混淆知识点:动词原形变三单与可数名词变复数对比
情况
构成方法
例词
一般可数名词
加-s
books, pens, hamburgers
以-s,-x,-sh,-ch结尾的可数名词
加-es
classes, boxes, dishes, sandwiches
以“辅音字母+y”结尾的可数名词
变y为i,再加-es
candies, strawberries
以-o结尾的可数名词
有生命加-es
tomatoes, potatoes,heroes
无生命加-s
photos
以-f,-fe结尾的可数名词
变f或fe为ves
leaves, knives
· 名词:book-books potato-potatoes区别:名词是复数,动词是三单
· 动词:like-likes do-does
练习:
1、 写出下列动词的第三人称单数形式。
1. go 9.swim
2. watch 10. climb
3. do 11. mix
4. look 12.like
5. talk 13.study
6. cook 14.play
7. live 15. bus
8. make 16. have
二、单项选择。
( )1.Amy often______to school by bus.
A. go B. goes C. is going
( )2. Where_____Peter live? He______on a farm.
A. does;lives B. do;lives C. do;live
( )3. My mom usually_______a cake for us.
A. make B. makes C. made
( )4. Mike________like beef
A. doesn’t B. don’t C. didn’t
( )5. My dad _______ sports every morning.
A. plays B.play C.playing
( )6. Mrs Brown _____happy, you _____excited, I_____afraid.
A. is/are/am B.am/is/are C.are/am/is
( )7.How______Tom and John____to work?
A. do;goes B. does;goes C.do;go
( )8.Does she_______the pipa on the weekend?
A. play B.plays C.play