第三人称单数问题
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： ①Han Mei looks like her mother. 韩梅看起来像她的母亲。 ②Beijing is in China. 北京在中国。
③Uncle Wang often makes cakes. 王叔叔经常做蛋糕。 三、单数可数名词或\单数可数名词\作主语时，是第三人称单数。如：
①A horse is a useful animal. 马是有用的动物。
1
②This book is yours. 这本书是你的。 ③That car is red. 那辆小汽车是红色的。 ④The cat is Lucy's. 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：
①Everyone is here. 大家到齐了。
②There is something wrong with the watch. 这块手表有毛病。 ③This is a pen. 这是一支钢笔。 ④That 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： ①The milk is in the glass. 牛奶在玻璃杯里。 ②The 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： ①\是个吉利数字。 ②\是个字母。
2
动词原形变第三人称单数的规则与发音规律同名词单数变复数大致相同，请认真观察。 1、大多数动词在词尾加“S”如： ①stop－stops [s] ; make－makes [s] ②read－reads [z] ; play－plays [z]
2、以辅音字母加“y”结尾的，要先将“y”变为“i”，然后在加“es”读[iz] 如：
fly－flies [z]； carry－carries [z] study－studies [z]; worry－worries
3、以“s, x, ch, sh”结尾的，在词尾加“es”，发音为[iz] 如： teach－teaches [iz]; watch－watches [iz] 4、以“o”结尾的动词，加“es”， 如： go－goes [z] do－does [z]
注：下面几个动词变为单数时，原词的元音部分的发音发生了较大的变化，请注意记忆。 如：
1、do [du:]－does [dz] 2、say [sei]－says [sez]
3
以不发音字母“e”结尾的开音节词，如果尾音是[s]，[z]时，加“s”后字母“e”发音，与所加“s” 一起读做[iz]。 如：close－closes [iz] I. 写出第三人称单数：
wash_________ match _______guess______ study______ finish_________ go________ snow______ carry_________ II. 用所给动词的适当形式填空： 1. He________ TV every evening. (watch) 2. We always ________ to school on foot. (go)
3. Tom, with his classmates, often ______ football after school. (play)
4. Your shoes _______ under the bed. (be) 5. ______ here and ______ by me. (come, stand) 6. His uncle usually _________ to work by bus. (go) 7. I always ______ up at six in the morning.(get) 8. John ________ like his father. (look)
4
III. 完成句子
1．该吃晚饭了。It’s time to ________ ________.
2．你想来点儿面包吗?Would you ________ some ________ ? 3．安娜太小，还不能上学。Ann is ________ young ________ go to school.
4．约翰跑得和我一样快。John ____ as fast as me. 5．布莱克太太经常在英语上帮助我们。Mrs. black often ________ us ________ our english .
请看下面两组句子，注意区分他们的共同点和不同点。 I go to school every day. I don't go to school every day.
He goes to school every day. He doesn't go to school every day. Do you go to school every day? Yes, I do. (No, I don't) Yes, he does. (No, he doesn't) Does he go to school every day?
5