小学英语四大时态.ppt

1、小学英语时态,四种时态,一般现在时 现在进行时 将来时 过去时,The earth goes around the sun. He jumped high on last Sports Day. Mary likes Chinese. Do you do your homework every day? Whos going to New York soon？ It was Bens birthday last Friday.,请说出以下句子的时态,I read a newspaper every day. I didnt read a newspaper yesterday, I read

2、a novel instead. I am reading a newspaper now. I am going to read a magzing tomorrow.,四种时态,动词,1.概念：,表示_和_的词。,2.英文表达：,verb,3.英文缩写：,v.,动作,状态,jump 跳,run 跑,I am a teacher. She is a student. You are a boy.,动作,am,is,are,状态,Game,Find verb in the following phrase.,ride a bike fly a kite make a cake color th

3、e dog clean the road follow the nurse,一般现在时,一般现在时：表示经常性的事情，习惯性的动作或一般性事实。时间状语： often 经常， usually通常， always 总是，every day每天，sometimes 有时等。,always，usually，often，sometimes, seldom和never都是用来表示时间的频度副词，但它们所表示的动作频率不同。 通常说来，always表示100%，usually表示80%，often表示60%，sometimes表示40%，seldom表示20%，never表示0%。,never,alway

4、s,sometimes,seldom,often,usually,句子结构：1.主语+is/am/are+其他 2.主语（非单三）+动词原形+其他 3.主语（单三）+动词s或es+其他 非单三：I, you, we, they, 复数。 单三：he, she, it, 单个人，单个物。,第一人称 ：我，我们（I，we）,第二人称：你，你们（you）,第三人称：除了第一第二人称，其他都是,第三人称单数： 男他,女她,动物它 (he.she.it)， 某人，某物，某件事,第三人称单数,你能分辨出第三人称单数吗？,this 5 oranges she ice-cream they the boy i

5、t those,she Bob and Tom we his father I the cat some bread my grandparents,一般现在时,动词变单三： 1） 直接加s， 如： come-comes 2)以o, x, s, sh, ch 结尾+es , 如: do-does, wash-washes，go-goes 3） 辅音字母加y结尾，把y改为i ，+es， 如：fly-flies, worry-worries, carry-carries 4） 特殊： have-has,一般现在时,1.go- 2.get- e- 4.put- 5.have- 6.see - 7.t

6、ake- 8.do- 9.read- 10.know- 11.buy- 12.say-,goes,gets,comes,puts,has,sees,takes,does,reads,knows,buys,says,I _ three friends in England. 2. They_ a big room. 3. Helen _ two cats. 4. Jack and Cindy _ a son. 5. She _ a big apple. 6.Do you_ a bag ? 7.Bobs brother _a nice watch.,have,have,has,have,has,h

7、ave,用 have or has 填空。,第三人称单数用has，非第三人称单数和复数用have.,has,I _ pears very much. 2. They_ their school. 3. Helen _ vegetables. 4. Jack and Cindy _ bread. 5. She _hamburgers with chicken. 6. Does he_ fruit ? 7.Bobs brother _carrots.,用 like or likes 填空。,like,like,like,likes,likes,like,likes,needs,plays,call

8、s,asks,I have a baseball.,She has a baseball.,Do you have a pen?,Does she have a pen?,I go to school.,She goes to school,陈述句：用于说明一个事实或表达说话人的看法或观点的句子。 陈述句分为肯定句和否定句。 肯定句表示肯定的意义； I am a teacher. I like apples. 否定句表示否定意义，句中有否定词not, never等，表示“不”的意思。 I am not a teacher. I dont like apples.,肯定句和否定句之间的转换,1.

9、 如果肯定句中有be动词（am, is, are, ）或者情态动词，只需在be动词或者情态动词之后加not即可得到相应的否定句。,2. 如果句子中没有be动词或者情态动词，则需要借助助动词do、does，将not放在它的后面，并将句中实义动词变为原形。 注意：do, does, 后面必须使用动词原形。,肯定句和否定句之间的转换,My father is a taxi driver. My father is not (isnt) a taxi driver. There are some apples on the table. There are not (arent) any apples

10、 on the table. He can play football very well. He can not (cant) play football very well.,More Examples,I like listening to pop music. I dont (do not) like listening to pop music. He goes to work every morning. He doesnt (dose not) go to work every morning. Linda drives to school every day. Linda do

11、esnt (does not) drive to school every day.,I _ pears very much. 2. They_ their school. 3. Helen _ vegetables. 4. Jack and Cindy _ bread. 5. She _hamburgers. 6.Bobs brother _carrots and rice.,like,like,likes,likes,like,likes,改为否定句,I like the schoolbag. He likes fruit. They eat bread. Helen eats chick

12、en. My father plays soccer. I want to watch TV. She wants to have lunch. Eric goes to school. We think about food. Paul helps his classmates.,改为否定句,一般疑问句：一般疑问句是指可以直接用yes或no来回答的疑问句，这种疑问句句末多用升调。 如： Is this your handbag? -Yes ,it is. / - No ,it is not. Do you like apples? -Yes ,I do. / - No ,I do not.

13、一般疑问句的基本结构： be动词/助动词/情态动词+主语+谓语/表语+其他？ 一般疑问句的回答： Yes ,主语+ be动词/助动词/情态动词 No ,主语+ be动词/助动词/情态动词+not,I like the schoolbag. He likes fruit. They eat bread. Helen eats chicken. My father plays soccer. I want to watch TV. She wants to have lunch. Eric goes to school. We think about food. Paul helps his cl

14、assmates.,改为一般疑问句,I _ pears very much. 2. They_ their school. 3. Helen _ vegetables. 4. Jack and Cindy _ bread. 5. She _hamburgers. 6.Bobs brother _carrots and rice.,like,like,likes,likes,like,likes,改为一般疑问句，并肯定/否定回答,一般现在时,（1）当句子中有be动词或情态动词时 陈述句：She is a student.疑问句 Is she a student? 否定句 She is not a

15、 student. 陈述句：I can swim.疑问句 Can you swim否定句 I can not swim.,一般现在时,（2） 当句子中即没有be动词，也没有情态动词时 陈述句：We get up at 7:00 every morning.疑问句Do you get up at 7:00 every morning? 肯定回答：Yes,we do. 否定回答：No,we dont.否定句We dont get up at 7:00 every morning. 陈述句：She has a little brother.疑问句 Does she have a little bro

16、ther? 肯定回答：Yes, she does. 否定回答：No, she doesnt.否定句 She doesnt have a little brother.,肯定句，否定句和一般疑问句之间转化的步骤,1仔细审题 2看句子中含有哪类动词 3复查,一般现在时,1. She is a girl. 否定句: 一般疑问句: 肯定回答: 否定回答：,She isnt a girl.,Is she a girl?,Yes, she is.,No, she isnt.,一般现在时,2. He often goes to school at seven . 否定句: 一般疑问句:,He doesnt

17、often go to school at seven .,Does he often go to school at seven?,肯定回答：Yes,he does.,否定回答：No,he doesnt.,I have a baseball. (否定句) I _ have a baseball. (一般疑问句) _ you _ a baseball? (肯定回答) Yes, I _. (否定回答) No, I _. She has a tennis ball. (否定句) She _ _ a baseball. (一般疑问句) _ she _ a baseball? (肯定回答) Yes,

18、she _. (否定回答) No, she _.,dont,Do,have,do,dont,doesnt,have,Does,have,does,doesnt,选择题,( )1.Tom is a worker. He _ in a factory. His sisters _ in a hospital. work, work B. works, work C. work, works ( )2. Who _ English best in your class? speak B. speaks C. speaking ( )3. He often _ the windows . A. is cleaning B. clean C. cleans ( )4