一般现在时.doc

一般现在时一、定义与讲解一般现在时表示经常或习惯性的动作或一般性事实。，也可表示现在的状态或主语具备的性格和能力。通常与副词every day（每天），always（总是）,usually（通常）,often（经常）sometimes（有时）,等时间状语连用。例：（1）表示事物或人物的特征、状态。The sky is blue.天空是蓝色的。Marys father is an English teacher. 玛丽的爸爸是一名英语老师。 （2）表示经常性或习惯性的动作。I get up at six every day.我每天六点起床。She plays sports every day. 她每天都做运动。 （3）表示客观现实。The table has four legs.桌子有四条腿。There are 50 students in my class. 我们班有50个学生。（4）表示客观真理，科学原理，自然现象，等客观事实或格言谚语等。 The sun rises in the east every day.太阳每天从东方升起。The earth goes around the sun.地球绕着太阳转。（5）表示平日的喜好。I like bananas. We dont like vegetables.He likes ice cream. She doesnt like strawberries.二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。 动词三单形式的变化规则：1.（1）多数直接在动词词尾加-s. play plays like likes ask-asks work-works get-gets call-calls（2）以字母s, x, ch, sh或o结尾的动词，在词尾直接加-es. watch-watches wish-wishes do-does go-goes （3）以“辅音字母加 - y”结尾的动词，要先变y为i再加-es. try-tries study-studies cry-cries fly-flies2.不规则变化：be- is have-has三、一般现在时的句子转换：（1）变一般疑问句：当句子中有be动词或情态动词时，则把be动词或情态动词(can,could等)提到主语的前面，（口诀：一调二变三问号）; （2）变否定句：在be动词或情态动词后面直接加not变成否定句. (be后not莫忘记)例：陈述句：She is my sister.疑问句 Is she your sister? Yes, I am./ No, Im not.否定句 She is not my sister.陈述句：I can play soccer.疑问句 Can you play soccer? Yes,Ican./ No, I cant.否定句 I can not /cant play soccer.注意：对一般疑问句的回答：一般用什么问就用什么来回答。但以下例外：Is this a pencil? Yes , it is./ No, it isnt.Is that your backpack? Yes , it is./ No, it isnt.Are these your parents? Yes, theyre./ No, they arent.Are those Jims brothers? Yes, theyre./ No, they arent.（3）当句子中没有be动词，也没有情态动词时，变一般疑问句时，在主语前加助动词do (I, we, you,以及复数), does（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dont, doesnt变成否定句，切记：助动词后的动词则还原成动词原形。例：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 dont get up at 7:00 every morning.陈述句：She has a brother.疑问句 Does she have a brother? 否定句 She doesnt 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： Han Mei likes salsd . 韩梅喜欢萨拉。 Beijing is in China. 北京在中国。 Uncle Wang often plays volleyball. 王叔叔经常打排球。 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： This book is yours. 这本书是你的。 That car is red. 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。Everyone is here. 大家到齐了。 There is a watch on the table. 桌上有块手表。 This is a pen. 这是一支钢笔。That is an eraser.五、不可数名词作主语时为第三人称单数。如： The milk（牛奶） 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。 巩固练习题： 一、按照要求改写句子 1This is my pencil ? (变一般疑问句) your pencil ? 2. These red socks are Kates . (变一般疑问句) socks Kates ? 3. Mary does not have any books . (变肯定句) Mary books . 4. She likes the black bag very much . (变为否定句) 5. I like apples. (用she改写句子) 6. Its an English dictionary . (对画线部分提问) . 7. He has hamburger and apples for dinner . (变一般疑问句) 二、用Be动词填空。 1. you Li Fen ? No, not . 2. Mr. green very busy? Yes , he . 3.This book very interesting . 4. What class you in ? 5. You and I good friends . 6. The basketball club fun . 三用所给动词的适当形式填空。 1. Lin Tao_ (like) his ruler . 2. Lets _ (have) ice cream . 3. Lets _ (play) tennis ! 4. He _ (like) English. 5. Nice_ (meet) you ! 6. I _ (need) some fruits. 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.(改为一般疑问句，作否定回答)_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)_ 六改句子1. Do you often play football after school? (肯定回答) 2. I have many books. （改为否定句） 3. Gao Shans sister likes playing table tennis （改为否定句） 4. I watch TV every day. （改为一般疑问句） 1. This is a white key. (对画线部分进行提问) 2.Bens bag is yellow and red . (对画线部分进行提问) 3.Her name is Gina. (对画线部分进行提问) 4.My phone number is 673-8220. (对画线部分进行提问) 5.The boys name is Jack. (对画线部分进行提问) 6.The picture is on the wall. (对画线部分进行提问) 7.Your baseball is under the chair. (对画线部分进行提问) 8.His book is on the desk. (对画线部分进行提问) 9.Some balls are in the dresser. (对画线部分进行提问) 10.My computer is on my desk. (对画线部分进行提问) 11.He is Johnny. (改为一般疑问句) 12.These are his parents. (改为一般疑问句) 13.This is my sister. (改为一般疑问句) 14.The baseball is under the bed. (改为一般疑问句) 15.My key is on the bed. (改为一般疑问句) 16.He has a tennis racket. (改为一般疑问句) 17.I have some baseball bats. (改为一般疑问句) 18.She has many things to do today. (改为一般疑问句) 19.I like hamburgers . (改为一般疑问句) 20.They have a TV. (改为一般疑问句) 21.My English teacher is fine. (改为同义句) 22.Im Zhang Na. (改为同义句) 23.Hello! My name is Gina. (改为同义句) 24.Im her son. (改为同义句) 25.You are Tina. (改为否定句) 26.These are my brothers. (改为否定句) 27.The books are on the bookcase. (改为否定句) 28.Three books are under the desk. (改为否定句) 29.She has a computer game. (改为否定句) 30.We have a big TV in our house. (改为否定句) 31.Kate has some money in her pocket. (改为否定句) 32.He likes ice cream. (改为否定句) 33.Im fine. (写出问句) 34.Nice to meet you! (写出答语) 35.Is that a dictionary ?(改为复数句) 36.These are photos. (改为单数句) 37.Is he your cousin? (作肯定回答) 38.Is Linda his sister? (作否定回答) 39.Is this a Chinese book? (作否定回答) 40.Those are dictionaries. (改为单数句) 41.Is the CD on the sofa?( 作肯定回答) 42.Are the chairs next to the table ?(作否定回答) 43.Where is my book ?(改为复数句子) 44.They are on the sofa .( 改为单数句子) 45.Are her pens on the dresser ?(作否定回答) 46.Are your pens in the pencil case ? （作否定回答） 47.Those are books .(改为单数句子) 48.Do you have a baseball? (作否定回答) 49.Does he play sports every day ?(作肯定回答) 50.You have a computer game. (用第三人称he作主语)选择：( )1. I _to school at 7:00 in the morning.A. go B. going C. goes( )2. They _books every day in the library.A.reads B. read C. reading( )3. The monkey_ eating bananas very much.A.like B. likes C. liking( )4. My father _to read newspaper after supper every day.A.like B.