初中英语一般现在时电子教案.docx

1、初中英语一般现在时电子教案初中英语一般现在时一 般 现 在 时 讲 解 和 练 习一、 定义：一般现在时表示经常或习惯性的动作，也可表示现在的状态或主语具备的性格和能力。 例：（1）.表示事物或人物的特征、状态。The sky is blue.天空是蓝色的。 （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。 （3）.表示客观现实。The earth goes around the sun.地球绕着太阳转。二、一般现在时常用时间状语、时间副词in the morning/afternoon/eveningevery week (day, ye

2、ar, month)on Sundays (Monday, Tuesday)at night, once a week,. always总是, usually通常, often经常, sometimes有时, never从不三、用法： 1肯定句：（1） 句中有be（am，is，are）和情态动词时，1 be动词时，主语是I时要用am，主语是you时要用are，其他用is。2 是情态动词时，后面的动词用原型3 例：I am a student.You are very beautiful.She is my best friend.He can do his homework by himsel

3、f.（2） 没有be（am，is, are）动词和情态动词：主语为第三人称单数（she ,he ,it ）、单数可数名词、不可数名词的，动词要按规则加上s或es；主语是复数可数名词的肯定句，动词用原形。 例：She（He, It ）likes fish. 她（他，它）喜欢鱼。（主语为第三人称单数） The table has four legs.桌子有四条腿。(主语为单数可数名词) Water boils at 100 degrees Celsius.水在100度沸腾。（主语为不可数名词） They go to school every day .他们每天都去上学。（主语是复数可数名词的，动词

4、用原形）注意的问题：第三人称单数以及第三人称单数时动词的变化规则在一般现在时中，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： 1、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。 It looks like a cat. 它看起来像只猫。 2、单个人名、地名或称呼作主语；是第三人称单数。如： Han Mei looks like her mother. 韩梅

5、看起来像她的母亲。 Beijing is in China. 北京在中国。 Uncle Wang often makes cakes. 王叔叔经常做蛋糕。 3、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： A horse is a useful animal. 马是有用的动物。 This book is yours. 这本书是你的。 That car is red. 那辆小汽车是红色的。 The cat is Lucys. 这只猫是露茜的。 4、不定代词someone, somebody, nobody, everything, somethin

6、g等及指示代词this, that作主语时，是第三人称单数。如： Everyone is here. 大家到齐了。 There is something wrong with the watch. 这块手表有毛病。 This is a pen. 这是一支钢笔。 That is an eraser. 那是一块橡皮擦。 5、不可数名词作主语时为第三人称单数。如： The milk is in the glass. 牛奶在玻璃杯里。 The 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： 6 is a lucky number. 6是个吉利数

7、字。 I is a letter. I是个字母。 动词+s的变化规则 1一般情况下，直接加-s，如：cook-cooks, make-makesruns gets likes collets takes plays climbs2以s. x. sh. ch. o结尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes 3以“辅音字母+y”结尾，变y为i, 再加-es，如：study-studies 方法与发音：1.一般情况下，直接加 -s eg. works， plays, rains, sees 2.以 sh, ch, s, x

8、 或 o 结尾的词后加 eseg. washes, teaches, fixes, does, goes3.以辅音字母加 -y 结尾的，先把 y 改成 i, 再加 -eseg. studies, flies, carries注意: 动词加 -s 以后的读音.动词加-s后的读音1.在p t k f 等清辅音后， 发清辅音 /s/ eg. helps, works, likes, hates ,laughs2.在浊辅音和元音后， 发浊辅音 /z/eg. drives, cleans, plays3.在s z t d后， 发 /iz/rises, wishes, teaches, urges4.在t

9、 d后，发 /ts/ /dz/eg. fits, sets, needs5. 其他情况下发zeg. plans, cries, shows 练习1v 1Jenny _ in an office. Her parents _in a hospital.v A work; works B works; work C work; are working D is working; workv 2One of the boys_ a black hat.v A have B there is C there are D hasv 3Wang Mei _ music and often _ to mus

10、ic.v A like; listen B likes; listens C like; are listening D liking ; listenv 4. Jenny_ English every evening.v A has study B studies C study D studiedv 5. The teachers _(speak) English in class.v 6. The teacher _(speak) English in class.2. 否定句： (1)句中有be动词(am , is , are )或情态动词(may , can , must , sho

11、uld)时，否定句在be动词和情态动词后加not， I am not a teacher. He can not fly . (2) 句中没有be动词(am , is , are )或情态动词(may , can , must , should)时，主语为第三人称单数的否定句，在动词原形前加does + not (doesnt)。 He doesnt like cats. (3)句中没有be动词(am , is , are )或情态动词(may , can , must , should)时，主语为复数可数名词的否定句，在动词原形前加do + not (dont)。 They dont go

12、to school on Sundays. 练习2v 1. The cat _(not like) you.v 2.Brian (not live) in China.v 3.The picture _ nice.v A. dont look B. is looked v C. doesnt look D. is lookingv 4. I have many books.(改为否定句）_v 5.厦门不下雪。_v 6.她不看新闻。_v 7.我妈妈不喜欢吃肉_3疑问句： (1)句中有be动词(am , is , are )或情态动词(may , can , must , should)时，一般疑

13、问句将be动词或情态动词放在句首。 由肯定句变为一般疑问句的步骤： . 把be 动词（am , is , are ）或情态动词(may , can , must , should)提前。 .大写和小写的转换，句首的第一个字母要大写。 .句末要加问号。 例：肯定句：She is a student . 疑问句：Is she a student ? 肯定句: He can swim. 疑问句：Can he swim? . 疑问句的回答：用什么问就用什么来回答。 Is she a student ? Yes, she is . No，she isnt.Can you swim? Yes, I can

14、 . Yes, I cant. (2) 句中如果没有be动词(am , is , are )或情态动词(may , can , must , should)时，主语为第三人称单数（she ,he ,it ）、单数可数名词、不可数名词的疑问句要用does 来提问。即在句首加does，句子中原有动词用原形 例：Does he like Chinese? 他喜欢汉语吗？ Yes, he does. 是的，他喜欢(汉语)。 Does a dog eat meat? 狗吃肉吗？ No, it doesnt. 不，它不吃(肉)。 (3) 句中如果没有be动词(am , is , are )或情态动词(ma

15、y , can , must , should)时，主语为复数可数名词的疑问句要用do 来提问。 Do you like monkeys? No, we dont. Do students study Englsih ? Yes , they do. 同时还要注意在肯定句变成否定句时，若是遇I/weyou, myyour. Someany. 句号问号（？）Does your cat eat any fruits? 你的猫吃水果吗?练习3v 1._she _ (do) the housework every day? v 2. Does Jenny (has) a good friend?v Y

16、es, she _. (have) No. she _. (not have)v 3. _ you study English at school?Yes, I _ (do).v 4._ your sister study English at school?No, she_ (do) v 5. She lives in a small town near New York.(改为一般疑问句）_v 6.我每天都必须来吗？_v 7.你爸爸每天早上都看报纸吗？_4.特殊疑问句：特殊疑问词 + am/is/are + 相应的人称/ + 其他 do + 人称 + 动词原形 + 其他What/Where

17、/Who/When/Which/why/how/whose + am/is/are + 相应的人称/名词 + 其他What/Where/Who/When/Which/why/how/whose + do/does + 相应的人称/名词+ 动词原形 + 其他v Who are you? 你是谁？v Why is your mother so busy?v 你妈妈为什么这么忙？v How are you? /is your dad? 你好吗?你爸好吗？v What does he do everyday?v 他每天做什么？v When does your father go to work eve

18、ry day?v 你爸爸每天什么时候去上班？v Who studies very hard in our class?v 我们班谁学习非常努力？v Which computer games do you like?v 你喜欢那种电脑游戏？练习题4v 1. Where _you_ (have) lunch every day?v 2. Who_(想要 )to go swimming?v 3. Why _ Tom absent today? (be)v 4. I often play football on Friday afternoon? 就划线部分提问 _v 5. Lily waters t

19、he flowers everyday. _v 6.为什么她每天都那么早去上学？ _v 7.他带的是谁的眼镜？ _课后巩固练习题（完成时间：20分钟）一、按照要求改写句子 1This is my pencil ? (变一般疑问句)2. These red socks are Kates . (变一般疑问句) 3. I want to buy a big green bag . (变特殊疑问句 )4. Mary does not have any books . (变肯定句)5. The clothing shop is on sale . (变为否定句) 6. She likes the bl

20、ack bag very much . (变为否定句) 7. I buy the pants for only 50 Yuan. (用she改写句子) 8. Its an English dictionary . (对画线部分提问) 9. Lily and Lucy are fifteen years old now . (对画线部分提问) 10. Her dog is 2 years and 5 months old . (变为否定句) 11. I usually get up at seven oclock . (用he改写句子) 12. He often has hamburger an

21、d apples for dinner . (变为一般疑问句) 13. My family always like thrillers . (对画线部分提问) 14. Janes sister wants to see the comedy . (变为一般疑问句) 15. Maria and Jack come to this school on Monday .(对画线部分提问) 二、完成句子 1. 他每天六点钟起床。 He _ _ _ six every morning. 2. 小明经常去远足。 Xiao Ming _ _ hiking. 3. 她总是在星期天看望爷爷奶奶。She _ _h

22、er grandparents on Sundays. 4. Sandy周末上学吗？ _ Sandy _ _school on weekends? 5. 他什么时候去上班？ When _ he go to _? 6. 李云喜欢秋天，不喜欢冬天。 Li Yun _ autumn, but he _ like winter. 7. 今天的天气怎么样？ Whats the _ like _? 8. 她有电脑吗？ _ she _ a computer? 9. Sue 有一本有趣的故事书。 Sue _ _ an _ _ book. 三、be动词填空。 1. _you Li Fen ? No, _ not

23、 . 2. _ Mr. green very busy? Yes , he _. 3. He must _ at home . 4. Comedy _ very interesting . 5. What _ class you in ? 6. You and I _ good friends . 7. His friends_ very funny . 8. The twins _ very happy because they want to go to a movie . 9. Our class_ big , but their class _ small . 10. The bask

24、etball club_ exciting and fun . 四用所给动词的适当形式填空。 1. My classmate _ (know) the man on the bike . 2. His sister usually _ (go) to school at 7:00 am . 3. Lin Tao _ (like) his new sweater . 4. Let me _ (have) a look . 5. Lets _ (play) tennis ! 6. he _ (like) English ? 7. I want _ (go) to a movie . 8. He _

25、 (not know)the teachers name . 9. Nice _ (meet) you ! 10. Can I _ (ask) the policeman ? 11. _ (sit) down and _ (have) a cup of tea . 12. _ (not look) at your book ! 13. you _ (can see)the bananas on the table ? 14. I need _ (buy ) some new clothes . 15. She likes _ (play) chess . 英语冷笑话（二）Money doesnt grow on trees. But it grows at our branches. (某银行广告)Child: Mummy, can I get out to play?Mother: With those holes in your trousers?Child: No, with the girl next door.谐音“笑”果A bicycle cant stand on its own because it is two-tyred. (too tired)