一般现在时公开课典范.ppt

1、一般现在时,教学目标,让学生学会正确的使用一般现在时 掌握当主语是单三时实义动词在一般现在时中的变化规则 能综合运用一般现在时完成任务 通过课堂互动与合作学习，增强学习兴趣，培养语言知识交际能力,自学指导:,一般现在时的定义和具体应用？ 一般现在时的表达方式是什么？ 一、系动词be的一般现在时 二、情态动词的一般现在时 三、实义（行为）动词的一 般现在时,研一研,分小组讨论总结出一般现在时表示什么意义？ 具体用法是什么？,定义及具体运用 1.表示现在的状态： e.g. Hes twelve. Shes at work. 2.表示经常或习惯性的动作，常与表示频率的时间状语连用。【 talk 】,

2、1.频度副词: sometimes(有时), often, always(总是), usually(通常), seldom, never(决不) twice a week,seldom,once a month, on Sundays,2. in the morning/afternoon/evening,3. every morning/night/evening/day/week/year, e.g. I leave home for school at 7:00 everymorning. I get up at 6:30 every day. He reads English ever

3、y morning.,学一学,3.表示主语具备的性格和能力等： e.g. She likes noodles. They speak Japanese. 4.普遍真理和自然规律： e.g. Two plus four is six. The moon goes around the earth. The earth moves around the sun. Shanghai lies in the east of China. 注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。 e.g. Columbus proved that the earth is roun

4、d. 5.表示格言或警句中。 e.g. Pride goes before a fall.骄者必败。,研一研,一般现在时通过哪几项动词的变化来表示？ 它们的否定、疑问、特殊疑问又该如何表示？ 分别如何作答？,表达方法,主要通过 和 的变化来表示，常常句中加上表示时间的词语。其中最主要的是谓语动词的变化。一般现在时动词变化的规则是：,情态动词、,be动词、,实义（行为）动词,助动词、,Start to learn,be 动词的一般现在时 肯定句：主语+be+表语(n., adj.数词，介词短语等)表状态 I am a student. He is twelve. They are in the

5、classroom.,否定句：be +not I am not a student. He is not a thirteen. They are not in the classroom.,一般疑问句：be提前 Are you a student? Is he twelve? Are they in the classroom?,特殊疑问句： 疑问词+一般疑问句 Who are you? How old is he? Where are they?,肯定回答：Yes，主语+be,否定回答：No，主语+be+not,注意：在作疑问句的回答时，主语要用相应的代词代替,I用am；you,we ，t

6、hey 都 用are, is连着he，she，it；单数名词用is,复数名词全用are。 变疑问，往前提，句末问号莫丢弃。 变否定，更容易，be后not莫忘记。 疑问否定任你变，句首大写莫迟疑,总结一下：,Be的用法口诀（talk bout it),一、用be动词的适当形式填空 Amy _ her sister. 2. His name _ Kate. 3. -What _ your phone number? -It _284-2942. 4. - _ you Cara? - No, I _ Gina. 5. Her brothers name _ John. 6. His family n

7、ame _ Li.,is,is,is,Are,am,is,is,is,Practice and Test,四、用be动词的正确形式(is, am, are)填空， 完成句子 18. _ they from Japan? Yes, they _. 19. You _ a teacher and I _ a doctor. 20. _ Ronaldo from Brazil? Yes, he _. 21. Who _ that? This _ Kangkang. 22. _ you a student? Yes, I _. 23. Where _ Beijing? It_ in China.,Ar

8、e,are,are,am,Is,is,is,is,Are,am,is,is,( )1. What color _ her shoes? Black. amB. isC. are D. be ( )2. These are my pants. His _ yellow. A. isB. am C. are D. / ( )3. My family _ very big. A. amB. is C. areD. does ( )4. This pair of shoes _ mine. His are over there. A. will be B. is C. are D. be ( )5.

9、My name _ Jack. Liu Ying and Sun Mei _ my friends. A. is; are B. is; is C. are; isD. is; am ( )6. What class _ your brother in? He _ in Class Two. A. does; is B. is; is C. are; /D. are; is,Bob is not on the football team.,Is Bob on the football team?,No, he isnt. (Yes, he is.),They are not in the te

10、achers office.,Are they in the teachers office?,Yes, they are. (No, they arent.),What is Bob?,Who are in the teachers office?,二. 改写下列句子。 1. Bob is ( on the football team.) 否定句： 一般疑问句： 回答： 对括号部分提问：2.( They are) in the teachers office.否定句： 一般疑问句： 回答： 对括号部分提问： 3. There is (a piano )in the room.否定句： 一般疑

11、问句： 回答： 对括号内容提问：,There is not a piano in the room.,Is there a piano in the room?,Yes, there is. (No, there isnt. ),What is in the room?,3. It is (sunny) today.否定句： 一般疑问句： 回答： 对括号内容提问： 4. There is (some water) in the bottle.否定句： 一般疑问句： 回答： 对括号内容提问：,It is not sunny today.,Is it sunny today?,Yes, it is

12、 .(No, it isnt.),There is not any water in the bottle.,Is there any water in the bottle?,Yes, it is. (No, it isnt.),How is the weather today?,Whats the weather like today?,What is in the bottle?, 对主语提问：当主语是人时，用 “Whos + 介词短语?”；当主语是物时，用 “Whats + 介词短语?”。其中there在口语中常常省略。注意：无论原句的主语是单数还是复数，对其提问时一般都用be的单数形

13、式(回答时却要根据实际情况来决定)。如：,There is a bird in the tree. Whats in the tree? There are some bikes over there. Whats over there? There is a little girl in the room. Who is in the room?, 对地点状语提问：用 “Where is are + 主语?”表示（注意其答语变化）：,There is a computer in my office. Where is the computer? -Its in my office. Ther

14、e are four children in the classroom. Where are the four children? They re in the classroom.,情态动词的一般现在时,构成,主语 + 情态动词 + 动词原形+其他,She can speak English.,注意：情态动词后的动词一定要用原形,试比较：They are right. She speaks English.,学一学,They can sing English songs,情态动词否定句的构成,主语 + 情态动词 + not + 动词原形 + 其他,I can drive the car b

15、ut she cant,I cant speak English She cant drive a car.,can can not may may not must must not,Can you speak English ?,Yes，I can.,No， I cant.,肯定回答：Yes，主语+情态动词,否定回答：No，主语+情态动词+not,情态动词 + 主语 + 动词原形 + 其它部分？,注意：在回答时，主语要用相应的代词代替,情态动词疑问句的构成,She can speak English. He may be in Beijing. Where may he is? They

16、must find it. What must they find?,情态动词的特殊疑问句的构成,特殊疑问词+情态动词 + 主语 + 动词原形 + 其它部分？,What can she speak？,情态动词后接动词原形; 没有人称和数的变化; 不能单独作谓语, 与后面的动词共同作谓语; 其否定形式在后面直接加not。,Modal verbs 情态动词,总结,.用适当的情态动词填空：。 1.I can play football. _you swim? 2.Dont worry. You _ return me this book tomorrow. 3.My grandma is ill.

17、You _ talk so loudly here . 4.I cant play with you. I _finish my homework first. 5.I_ get up early tomorrow. because I have a meeting. 6._you please open the window?,Can,may,cant,must,must,Can,9. Nobody _live without air. 10._he speak Chinese ?Yes ,a little. 11. The book _ be returned before Saturda

18、y. 12._I come in ?Yes ,please. 13. You _give up smoking at once. Its bad for your health. 14. Excuse me ._I ask you a question? 15. _you tell me where the station is ? 16. _ I finish the work now ?No, you _. You _ do it this evening. 17. May I use your dictionary ? Sorry , you _. I am using it now .

19、,can,Can,must,May,must,May,Can,Must,neednt,can,cant,实义动词的一般现在时,什么时候用动词的原型？ 什么时候用动词的单三形式？ 观察下列图片，并得出结论。,研一研,重点,The girl apples.,These two boys apples.,eats,eat,说说看看,Mike basketball.,The boys basketball.,plays,play,Xiao mei to school.,We twins,are,goes,That boy TV.,Tim and his mother TV.,watches,watch

20、,She going shopping.,I going shopping.,like,likes,1.如果主语是 和 I、 we 谓语动词不用做任何变化，即仍然用动词原形表示：,名词复数,第一人称,肯定句: 主语+动词原形+其他,否定句: 主语+dont+动词原形+其他,一般疑问句: Do+主语+动词原形+其他,例 1) We usually go to school at 7:30. 我们通常7:30上学去。go 2) My parents give ten yuan to my sister every week. 我父母每星期给我妹妹十元钱。,2.主语是 时，谓语动词要进行必要的变化。

21、 肯定句:主语+动词的第三人称单数+其他 否定句: 主语+doesnt+动词原形+其他 一般疑问句 : Does+主语+动词原形+其他 肯定回答: Yes，主语+does 否定回答: No，主语+doesnt 特殊疑问句: 特殊疑问词+一般疑问句,必要的，什么是第三人称单数呢？,第三人称单数,1.人称代词he, she, it是第三人称单数. 1).He likes watching TV. 他喜欢看电视. 2).She has lunch at twelve. 他十二点吃午餐. 3). It looks like a cat. 它看起来象只猫.,2. 单个人名.地名或称呼作主语时,是第三人称

22、单数形式.如: 1).Han Mei watches TV with her mother.韩梅和她的母亲看电视. 2).Beijing is the capital of China. 北京是中国的首都. 3).Teacher Wu often makes cakes at her home.王老师经常在家做蛋糕.,3.this/that/the/a/an+ 单数可数名词”作主语时,是第三人称单数. 如: 1).A girl plays the piano at school. 2).This book is yours. 3).That car is red. 4).The cat is

23、Lucys.,4. 不可数名词或抽象名词作主语时,为第三人称单数.如: 1).The milk is in the glass.牛奶在玻璃杯里. 2).The bread is very small. 那块面包很小.,5. 当数字或字母做主语时,看做第三人称单数.如: 1).“6” is a lucky number. “6”是个吉利数字. 2).“I” is a letter. “ I”是个字母.,6.在某些特殊疑问句中，特殊疑问词做主语表单数含义,How old is she? When is her birther? Who is your math teacher? How much

24、is the pen? Where does he want to go? Why is she?,What subject does she like best?,在一般现在时中, 当主语是第三人称单数形式时,行为动词用第三人称单数形式,即加-s 或 es. 具体方法如下:,一般情况下,直接加 -s.如: work-works play-plays rain-rains see-sees,2. 以 sh,ch,s,x或o结尾的词后加-es.如: wash-washes teach-teaches fix-fixes do-does go-goes,3.以辅音字母加-y结尾的, 先把y变成i,

25、再加 -es.如: study-studies fly-flies carry-carries,4. 元音字母+y结尾直接加s. 如：plays, says, buys,5. 以o结尾加-es. 如：do-does, gogoes 6.以不发音的子母-e结尾的直接加-s.如：likelikes, drive-drives 7. 特殊：are-is, have-has,注意：不要和名词的单复数混淆 那么相应的问题赶紧讨论一下啦!,单数,复数,可数名词,如何变化？,规则变化,1.一般情况下,直接在名词词尾加-s.,2.以s,x,sh,ch结尾的名词,在词尾加-es.,3.以辅音字母加y结尾的名词，

26、要变y为i再加-es.,5.以f或 fe结尾的名词，先将f或 fe变为v,再加-es.,6.以o结尾的名词,表示无生命事物的名词加-s, 表示有生命事物的名词加-es。,4.以“元音字母+y”结尾的名词，直接在词尾加-s .,Sum up,写出下列动词的第三人称单数形式,work study drive wash watch fly spell speak say like do have,works studies drives washes watches flies spells speaks says likes does has,练一练,给下列可数名词加复数,bird- card-

27、lady- orange- ruler- photo- friend- boy- watch- girl- case- cat- wife- tree- key- bed- hero- family- dictionary- question- leaf- party- cup-,birds,ladies,oranges,rulers,cats,boys,girls,cases,wives,watches,trees,keys,questions,beds,heroes,friends,families,dictionaries,photos,cards,leaves,parties,cups

28、,行为动词的一般现在时 肯定句： I/We/You/They I stay at home on Saturdays. They like playing basketball. He/She/It He stays at home on Saturdays. Lucy likes playing basketball. 否定句： I/We/You/They I dont stay at home on Saturdays. They dont like playing basketball. He/She/It He doesnt stay at home on Saturdays. Luc

29、y doesnt like playing basketball.,动词原形,单三,dont + 动原,doesnt + 动原,总结,一般疑问句： I/We/You/They Do you stay at home on Saturdays? Do they like playing basketball? He/She/It Does he stay at home on Saturdays? Does Lucy like playing basketball?,特殊疑问句： I/We/You/They What does she do at home on Saturdays? What

30、do they like doing? He/She/It Where does he go on Saturdays? Why does Lucy like Playing basketball?,一般现在时综合练习,Practice makes perfect! 孰能生巧,用动词的适当形式填空 1.We often _ (play) on the playground. 2. He _ (get) up at six oclock. 3. _ you _ (brush) your teeth every morning?,play,gets,Do,brush,5.Danny_ (study

31、) English, Chinese, Maths, Science and Art at school. 6.Mike sometimes _(go) to the park with his sister. 7.At eight at night, she _ (watch) TV with his parents. 8._ Mike _(read) English every day?,studies,goes,watches,Does,read,9. How many lessons _ your classmate _(have) on Monday? 10. What time _

32、 his mother _(do) the housework?,does,have,does,do,4. She lives in a small town near New York. （改为一般疑问句） 5. I watch TV every day. （改为一般疑问句）,Does she live in a small town Near New York?,Do you watch TV every day?,7. We have four lessons.（改为一般疑问句,并作肯定回答） 8. My dog runs fast. (一般疑问句并否定回答)：,Do you have

33、four lessons? Yes,we do.,Does your dog run fast? No,it doesnt.,10. Mike has two letters for him.一般疑问句：11. I usually play football on Friday afternoon.一般疑问句: 划线提问,Does Mike have two letters for him?,Do you usually play football on .?,What do you usually do on Friday afternoon.,12. Su Yang usually was

34、hes some clothes on Saturday.一般疑问句: 划线提问:13. Mingming usually waters the flowers every day一般疑问句: 划线提问：,Does Su Yang usually wash any clothes on Saturday?,What does Su Yang ususlly do on Saturday?,14. Tom does his homework at home.一般疑问句: 划线提问：,What does Tom do at home?,Does Tom do his homework at hom

35、e?,What do you do every day?,对划线部分提问 3.Its Wednesday today. 4.His favourite sport is basketball. 5.My brother works in Shenzhen. 6.One of my classmates comes from Australia. 7.Lucy usually gets up at 6:30 in the morning.,What day is it today?,Whats his favourite sport?,Where does your brother work?,

36、Where does one of your classmates come from?,When does Lucy get up in the morning?,I do my homework.(用He 改写),He does his homework.,She does her homework.(用we改写),We do our homework.,Tom does his homework.(用they 改写),They do their homewrk.,EX2 1.Tom often_( get ) up at six in the morning 2. The earth _

37、( go) around the sun . 3.Marys parent _(live ) in Beijing . 4. She _ (draw) very well.,gets,goes,lives,draws,继续加油 Come on!,Tom goes to school every day by bike. 1.就Tom 提问 2.就goes to school提问 3.就by bike提问,1.Who goes to school every day by bike?,2.What does Tom do every day by bike ?,3.How does Tom go

38、 to school every day?,Ex2. 将下列句子变成其否定和一般疑问句并就斜体部分提问。 1.She comes from America. 2.I usually go to school by bike.,Does she come from America? She doesnt come from Ameica. Where does she come from?,I dont usually go to school by bike. Do you usually go to school by bike? How do you usually go to schoo

39、l ?,1._ you have a book ? A DoB. AreC. IsD. Have2.Does Li Lei like to watch TV? _.A. Yes, he like. B. No, he doesnt. C. Yes, hed like.D. No, he likes.3.She doesnt _ her homework in the afternoon. A. doingB. to doC. doesD. do4.How _ Mr. Smith _ to England? A. do, go B. is , go C. does, go D. does , g

40、oes,5. _ she _ home at six every day? A. Is , leave B. Does , leave C. Is , leaves D. Does , left6.I want_homework now. A .doingB. to doC.to do myD.do my7.Its time_.A.go to schoolB.play games C.to go homeD.to do my homeworks8_you _the blackboard?Yes,I can.A.Can, clean B.Am, cleaning C.Are, cleaningD

41、.Do, clean9_go and help her. A.Lets me B.Lets us C.Lets D.Lets to,10.Do they have a new car? Yes,_. A.they are B.they have C.they dont D.they do11.He often _ supper at 6:00 in the evening. A. have B. has C. is having D. is eating12. Its 6 oclock in the morning. Its time _. A. get up B. gets up C. to

42、 get up D. gets up,13.The students will go to the Summer Palace if it _ tomorrow. A. dont rain B. doesnt rain C. wont rain D. isnt rain 14. The picture _ nice. A. looks B. is looked C. look D. is looking,同学们在具体做题中我们也遇到了 Some 和any And、or和but Too和either 相互变换的形式呢？那么再次讨论一下，让我们强化强化它们吧！,研一研,some、any,一般说来，

43、some 用于肯定句中，any 用于否定句和疑问句中 。,改疑问句或否定句时，原句里的some要改成any,There are some books on the desk. (改为否定句),There arent any books on the desk.,Are there any books on the desk?,Why not buy some apples? 为什么不买些苹果呢? Would you like some more apples? 你要不要再吃点苹果?,注意：在表示建议或希望得到肯定回答时， some可用于疑问句，不用变成any.,and or,变否定句时，and要变成or,There is some air and water on the moon ., There isnt any air or water on the moon.,He has some brothers and sisters.,He doesnt have any brothers or sisters.,在否定句当中，too要改为either,I like eating apples, too.,I do