小学英语动词的单三形式讲解.doc

小学英语动词的单三形式讲解大家都知道，在一般现在时中，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，即常在动词原形后加-s或-es。但有些同学们对于哪些主语是第三人称单数还不十分清楚，现归纳总结如下：一、人称代词he, she, it是第三人称单数。如：He likes watching TV. 他喜欢看电视。She has lunch at twelve. 她十二点吃午餐。 It looks like a cat. 它看起来像只猫。二、单个人名、地名或称呼作主语；是第三人称单数。如： Han Mei looks like her mother. 韩梅看起来像她的母亲。 Beijing is in China. 北京在中国。 Uncle Wang often makes cakes. 王叔叔经常做蛋糕。三、单数可数名词或this / that / the+单数可数名词作主语时，是第三人称单数。如： A horse is a useful animal. 马是有用的动物。 This book is yours. 这本书是你的。 That car is red. 那辆小汽车是红色的。 The cat is Lucys. 这只猫是露茜的。四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，是第三人称单数。如： Everyone is here. 大家到齐了。 There is something wrong with the watch. 这块手表有毛病。 This is a pen. 这是一支钢笔。 That is an eraser. 那是一块橡皮擦。五、不可数名词作主语时为第三人称单数。如： The milk is in the glass. 牛奶在玻璃杯里。 The bread is very small. 那面包很小。六、当数字或字母作主语时，看作第三人称单数。如： 6 is a lucky number. 6是个吉利数字。 I is a letter. I是个字母。 第三人称单数形式的构成1.一般直接在词尾加 s， 如：work-works live-lives make-makes 2.以s,x,ch ,sh等结尾的单词加 es , 如： miss-misses fix-fixes finish-finishes teach-teaches3.以辅音字母加y结尾的单词，变y为i加 es , 如： fly-flies4.以辅音字母加o结尾的单词，加 es 如: go-goes do-does动词单三的练习一. 根据括号里单词的适当形式填空1. She _ (be ) a writer.2. It _(look) like a monkey.3. We_(go) to the park.4. He _(go) to school. 5. Amy_(like) eating fruits.6. Hebei_(be) next to Shandong.7. Our teacher _(be) talking with John.8. Whose book _(be) this ?9. Dogs _(be) our friends .10. That blackboard _(be) clean.11. The desk _(be) Toms.12. Somebody _(do) her homework .13. Everybody _(is ) ok!14. Nobody _ (be) in the park .15. There _（be）someone in the classroom .16. That cat _(be ) mine .17. A little water _(be) in the cup.18. Cheese _（taste） well .19. The letter “O” _(look) like zero.20. “4” _(be) a bad number in China .二. 把下列句子改成第三人称单数句的肯定句、否定句、一般疑问句，并做回答。1. I like playing the pinao in the music room . (Tom)2. You need a pencil-box for new term . (Sams sister)3.I do my homework at half past four in the afternoon . （she）4. I have breakfast at twenty-five past seven in the morning .(her father )5. I watch TV at quarter past six with my parents . (Toms sister)