初中英语一般现在时教案.doc

初中英语一般现在时教案
一、一般现在时定义
表示经常性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。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。
1）表示经常性或习惯性的动作。
I go to school every day. 我每天去上学。
You usually get up at six. 你通常六点起床。
He often plays sports. 她经常做运动。
2）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。
Practice makes perfect. 熟能生巧。
3）表示平日的喜好。
I like bananas.
He likes ice cream.
4）表示事物或人物的特征、现在的状态。
The sky is blue.天空是蓝色的。
Mary’s father is an English teacher. 玛丽的爸爸是一名英语老师。
二．动词第三人称单数形式
一般现在时中，只有主语是第三人称单数时，动词才要变成第三人称单数的形式
其他人称用动词原形。
动词第三人称单数形式变化规则：
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，要先把y变为i再加-es.
　 　try---tries study---studies cry---cries fly---flies
2.不规则变化：be---- is have----has
注意：动词第三人称单数形式可与名词复数变化规则比较记忆
Practice:
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) the World Cup?
6. What _______they often _______(do) on Saturdays?
7. _______ your parents _______(read) newspapers every day?
8. The girl _______(teach) us English on Sundays.
9. She and I ________(take) a walk together every evening.
10. There ________(be) some water in the bottle.
11. Mike _______(like) cooking.
12. They _______(have) the same hobby.
13. My aunt _______(look) after her baby carefully.
14. You always _______(do) your homework well.
15. I _______(be) ill. I’m staying in bed.
16. She _______(go) to school from Monday to Friday.
17. Liu Tao _______(do) not like PE.
18. The child often _______(watch) TV in the evening.
19. Su Hai and Su Yang _______(have) eight lessons this term.
20. －What day _______(be) it today? － It’s Saturday.
21 We often ___________ (play) in the playground.
22. He _________ (get) up at six o'clock.
23. ________ you __________ (brush) your teeth every morning?
24. What ________(do) he usually ________ (do) after school?
25. Danny ____________ (study) English, Chinese, math, science and art at school.
26. Mike sometimes __________ (go) to the park with his sister.
27. At eight at night, she ____________ (watch) TV with her parents.
28. ________ Mike _________ (read) English every day?
29. How many lessons _________ your classmate _________ (have) on Monday?
30.What time _________ his mother _________ (do) the housework?
答案：1 has 2 are 3 doesn’t watch 4 doesn’t go 5 Do like 6 do do 7 Do read
8 teaches 9 take 10 is 11 likes 12 have 13 look/is looking 14 do
15 am 16 goes 17 does 18 watches 19 have 20 is 21 play 22 gets 23 Do brush
24 does do 25 studies 26 goes 27 watches 28 Does read 29 does have 30 does do

三、一般现在时的句型转换：
1）当句子中有be动词或情态动词时
变为一般疑问句：把be动词或情态动词(can,could等)提到主语的前面，肯定句的第一人称主语变为第二人称，句末用问号。（口诀：一调二变三问号）;

变为否定句：在be动词或情态动词后面直接加not变成否定句. (口诀：be后not莫忘记)
例：①陈述句：I can play soccer.
　　疑问句→ Can you play soccer? Yes,Ican./ No, I can’t.
否定句→ I can not /can’t play soccer.

②陈述句：She is my sister.
　　疑问句→ Is she your sister? Yes, I am./ No, I’m not.
　　否定句→ She is not/isn’t my sister.

注意：对一般疑问句的回答：一般是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 isn’t.
Is that your backpack? Yes , it is./ No, it isn’t.
Are these your parents? Yes, they are./ No, they aren’t.
Are those Jim’s brothers? Yes, they are./ No, they aren’t.
—Must we collect the bottles now? —________. You can do it after class. （2008中考）
A. Yes, you may B. Yes, you must
C. No, you mustn't D. No, you needn't
答案：D
2）当句子中没有be动词，也没有情态动词时
变一般疑问句：在主语前加助动词do (主语是I, we, you,以及复数)或does（主语是第三人称单数she,he,it等，肯定句的第一人称主语变为第二人称，句末用问号。

变否定句：在主语后谓语动词前加助动词do not/don’t(主语是I, we, you,以及复数)或 does not/doesn’t（主语是第三人称单数she,he,it等）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 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.
Practice:
一、按照要求改写句子
1. She is always a good student.(改为一般疑问句，作否定回答)
____________________________________________________________
2. Sun Yang usually washes some clothes on Saturday.
一般疑问句: ________________ __________ __
否定句: ________ ___
3. Tom does his homework at home.
一般疑问句: ____________ ______ ___
否定句: ________________ ______ _
二、改错(划出错误的地方，将正确的写在横线上)
1. Is your brother speak English? __________________
2. Does he likes going fishing? __________________
3. He likes play games after class. __________________
4. Mr. Wu teachs us English. __________________
5. She don’t do her homework on Sundays. _________________
四、1 Is---Does 2 likes---like 3 play---playing 4 teachs---teaches 5 don’t --- doesn’t
四、主语是第三人称单数的情况有如下几点：
1)人称代词he, she, it作主语是第三人称单数。如：
He likes watching TV. 他喜欢看电视。
She has lunch at twelve. 她十二点吃午餐。
2)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。
3)单数可数名词或"this / that / the+单数可数名词"作主语是第三人称单数。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。
4)不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语是第三人称单数。
①Everyone is here. 大家到齐了。
②Everything is ready. 一切都准备好了。
③This is a pen. 这是一支钢笔。④That is an eraser.
5)不可数名词作主语是第三人称单数。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。
6)当数字或字母作主语时，看作第三人称单数。如：
①"6" is a lucky number. "6"是个吉利数字。
②"I" is a letter. "I"是个字母。
注意：一般现在时也可表将来:
下列动词：come, go, arrive, leave, start, begin, return, live, fly的一般现在时表将来。这主要用来表示在时间上已确定或安排好的事情。
The train leaves at six tomorrow morning.
When does the bus start? It starts in ten minutes.
练习题：
用一般现在时或现在进行时填空。
1. Miss Guo ______ (teach) us Chinese this term. She ______ (be) a very good teacher. She often ______ (talk) with us after class. Many of us like ______ (talk) with her. Now, she ______ (talk) with Lily.
2. Where ______ (be) Tom and Jim? They __________ (play) football now.
______ LinTao ______ (play) footballs too? No, he ______ (mend) his bike.
3. Where ______ their father______ (work)? He ______ (work) on a farm.
But now he ______ (not work). He ______________(stay) at home.
4. The plane ______ ( fly) at ten tonight.
答案：
1. teaches, is, talks, talking, is talking
2.are，are playing, is,is playing,is mending
3.does, work,works, isn’t workingk,is staying
4. flies