含行为动词的 一般现在时
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只有主语在第三人称单数时,用动词的“三单形式”, 其他人称用动词原形表示。 例如:I come from China. We come from China. They come from America.
She/He/Tom comes from England.
★ 动词三单形式的变化规则:
1.(1)多数直接在动词词尾加_____________
play — plays like — likes
ask--- work--- get--- call---
(2)以字母s, x, ch, sh或o结尾的动词,在词尾直接加_______ watch- wish--- do--- go--- (3)以“辅音字母加 - y”结尾的动词,要先变____________ try--- study--- cry--- fly--- 2.不规则变化:be---- have--- 三、一般现在时的句子转换:
(1,变一般疑问句时,在主语前加助动词_______ (I, we, you,以及复数),______-(第三人称单数she,he,it等)变成问句;
(4)变否定句时,在主语后谓语动词前加助动词______________变成否定句,切记:助动词后的动词则还原成动词原形。
例:①陈述句:We get up(起床) at 7:00 every morning. 疑问句→Do you get up at 7:00 every morning? 否定句→We don’t get up at 7:00 every morning. ②陈述句:She has a brother.
疑问句→ Does she have a brother? 否定句→ She doesn’t have a brother.
※ 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。
二、单个人名、地名或称呼作主语;是第三人称单数。如: ①Han Mei likes salsd . 韩梅喜欢萨拉。 ②Beijing is in China. 北京在中国。
③Uncle Wang often plays volleyball.. 王叔叔经常打排球。
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: ②This book is yours. 这本书是你的。
③That car is red. 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。
①Everyone is here. 大家到齐了。
②There is a watch on the table. 桌上有块手表。 ③This is a pen. 这是一支钢笔。④That is an eraser. 五、不可数名词作主语时为第三人称单数。如:
①The milk(牛奶) 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\ .
一般现在时用法专练:
一、 写出下列动词的第三人称单数形式。
have like drink _____ go _____ stay ____ study___ _ teach_____ play______ make ______ look _____ _have____ come_____ watch______ plant_____ fly ____ _ do_____ 二、用括号内动词的适当形式填空。 1. He often ________(have) dinner at home. 2. Daniel and Tommy _______(be) in Class One. 3. We_______(not watch) TV on Monday.
4. Nick ____ ___(not go) to the zoo on Sunday. 5. ______ they ________(like) pears?
6. _______ your parents _______(have) eggs every day? 7. There ________(be) some water in the bottle. 18. Mike _______(like) cooking.
9. They _______(have) the same hobby. 10. Liu Tao ______ _(do) not like PE. 11. This boy often _______(watch) TV in the evening.
三、按照要求改写句子
1. Daniel watches TV every evening.(改为否定句)____________________________________ 2. I do my homework every day.(改为否定句)____________________________________ 3. She likes milk.(改为一般疑问句,作肯定回答) 4. Amy likes playing computer games.(改为一般疑问句,作否定回答)
5. We go to school every morning.(改为否定句_________________________________ 6. John comes from Canada(加拿大).(对划线部分提问___________________________________ 7. She is a good student.(改为一般疑问句,作否定回答)__________________________ 8. Simon and Daniel like play sports .(改为否定句_________________________________ 9. You are Tina. (改为否定句) 10.The books are on the bookcase. (改为否定句) 11..She has a computer game. (改为否定句)
12.We have a big TV in our house. (改为否定句) 13,Is Linda his sister? (作否定回答) 19Where is my book ?(改为复数句子)