动词ing和三单形式的变化规则.doc

动词ing 形式的变化规则
1.一般情况下直接加ing
play玩—playing listen听---listening read stories（读故事书）-- reading stories
climb mountains（爬山）-- climbing mountains
2.以不发音的e结尾的动词，去e，再加ing
make制做—making dance跳舞---dancing come来---coming
3.辅音+元音+辅音结尾的单词，双写词尾字母再加ing *（元音字母a、e、i、o、u）
swim游泳—swimming run跑步—running stop停止—stopping shop购物—shopping

动词第三人称单数形式的用法和变化规则
当主语是第三人称单数时，谓语动词要用第三人称单数形式，
如： I play football. He plays football.
I live in Shanghai. Sarah lives in Shanghai.
主语第三人称单数形式： he / she / it / my father… /Amy / Zhang Peng…
1.一般情况在词尾加s: like—likes dance---dances live居住—lives
2.以o、s、x 、sh、ch结尾的单词加es.
do—does go-- goes teach教--- teaches watch看--watches
wash clothes洗衣服--- washes clothes
3.以元音（aeiou）+y结尾的单词，加s: play-- plays say说-- says
4.以辅音+y结尾的单词，变y为i再加es ： fly kites放风筝-- flies kites study学习-- studies
5.特殊记：have有—has I have a book. She has a book.

动词ing 形式的变化规则
1.一般情况下直接加ing
play玩—playing listen听---listening read stories（读故事书）-- reading stories
climb mountains（爬山）-- climbing mountains
2.以不发音的e结尾的动词，去e，再加ing
make制做—making dance跳舞---dancing come来---coming
3.辅音+元音+辅音结尾的单词，双写词尾字母再加ing *（元音字母a、e、i、o、u）
swim游泳—swimming run跑步—running stop停止—stopping shop购物—shopping

动词第三人称单数形式的用法和变化规则
当主语是第三人称单数时，谓语动词要用第三人称单数形式，
如： I play football. He plays football.
I live in Shanghai. Sarah lives in Shanghai.
主语第三人称单数形式： he / she / it / my father… /Amy / Zhang Peng…
1.一般情况在词尾加s: like—likes dance---dances live居住—lives
2.以o、s、x 、sh、ch结尾的单词加es.
do—does go-- goes teach教--- teaches watch看--watches
wash clothes洗衣服--- washes clothes
3.以元音（aeiou）+y结尾的单词，加s: play-- plays say说-- says
4.以辅音+y结尾的单词，变y为i再加es ： fly kites放风筝-- flies kites study学习-- studies
5.特殊记：have有—has I have a book. She has a book.
一般现在时态变陈述句变一般疑问句（主语是第三人称单数）规则
Does +he /she/it /一个人的名字、身份+动词原形+…….？
例如 He goes to the zoo. Does he go to the zoo？
总结：如果动词是第三人称单数形式，助动词does放句首，主语紧跟在其后，后面动词改成原形，其他依次站。