一般现在时态

1、在英语中，每句话都包含一定的时态，要学好英语就必须掌握英语中一些常用的时态。在英语中,不同时间发生的动作和情况,要用不同的动词形式表示.这种不同的时间和不同的动词形式就叫做动词的时态. 换句话说，判断一个句子的时态，可以通过句子中的时间和动词的形态来判断。下面我就一般现在时作一些讲解，如有不妥之处，请指教。每种时态都有三个最基本的要素，分别是该时态的概念、结构、判断标志词。一、 一般现在时的概念：一般现在时表示现在经常反复发生的动作、存在的状态或习惯性的动作的时态。二、 一般现在时的结构：（有两类不同的结构） Be动词的一般现在时主语+be（am , is , are）+其它肯定句式：主语+b

2、e( am, is, are)+其它.否定句式：主语+be(am, is, are) +not +其它.一般疑问句：Be(am, is, are) +主语+其它？注：在这种构成中，be动词有人称和数的变化，即要根据主语选用am / is / are。Be动词分为单数和复数，am和is是表示单数，am只跟I搭配（除了I其余的单数都用is），are表示复数。 实义动词的一般现在时 主语（第三人称单数）+动词（第三人称单数形式）+其它肯定句式：主语（第三人称单数）+动词（第三人称单数形式）+其它否定句式：主语（第三人称单数）+doesnt+动词（原形）+其它.一般疑问句：Does+主语（第三人称单数

3、）+动词（原形）+其它？ 主语（除了第三人称单数）+动词（原形）+其它肯定句式：主语（除了第三人称单数）+动词（原形）+其它否定句式：主语（除了第三人称单数）+dont+动词（原形）+其它.一般疑问句：Do+主语（除了第三人称单数）+动词（原形）+其它？注：do、dont和does、doesnt是构成一般现在时的助动词，其特点是要在其后跟动词的原形。 三、 一般现在时的判断标志词often , usually , always , sometimes , at times , once a day , every + 时间 四、 动词的第三人称单数的构成规则和发音规则：1. 一般在动词后直接加

4、上-s。在清辅音后发音为s，在浊辅音及元音后发音为 z。如：stopstops s ; makemakes s readreads z ; playplays z2. 以“s, x, ch, sh”结尾的，在词尾加“es”，发音为iz 如：teachteaches iz; watchwatches iz3. 以辅音字母加“y”结尾的，要先将“y”变为“i”，然后在加“es”读iz 如：flyflies z；carrycarries z；studystudies z; worryworriesz4以“o”结尾的动词，加“es”，读z 如：gogoes z dodoes z5. 还有个别动词的第三

5、人称单数是不规则的，例如：have has注：请思考一下动词的第三人称变化与名词的复数有什么异同点。 五、 一般现在时的基本用法1) 经常性或习惯性的动作，常与表示频率的时间状语连用。【例如】：1. I leave home for school at 7:00 every morning.（肯定句）I dont leave home for school at 7:00 every morning.（否定句）Do you leave home for school at 7:00 every morning.（一般疑问句）2. His father reads newspaper every

6、 day.（肯定句）His father doesnt read newspaper every day.（否定句）Does his father read newspaper every day? （一般疑问句） 2) 客观真理，定理，规律，客观存在，科学事实，格言。【例如】：1. The earth moves around the sun.（肯定句）The earth doesnt move around the sun.（否定句）Does the earth move around the sun?（一般疑问句） 3) 表示主语现在的性格、特征、能力、状态（往往是没有时间状语）She

7、speaks English well. （肯定句）She doesnt speak English well. （否定句）Does she speak English well? （一般疑问句）初中英语语法 一般现在时练习题1）用动词的适当形式填空1.I like _ (swim). 2.He _(read) English every day.3.We _(go)to school at seven in the morning. 4.Mike_(go)to school at seven in the morning.5.My mother_(like) _(go) shopping.

8、6.I can _(draw) many beautiful pictures.7.She_(make) a model plane. 8.Do you _(like)_(run)?9.Does he_(like)_(jump) ? 10.Does Nancy_(grow)flowers on Saturday ?11.The teachers_(like)_(dance). 12.The teacher_(like)_(dance).13.The students_(speak) English in class. 14.The student_(speak) Chinese after c

9、lass. 15. Lets_and play football . ( go ) 16. He_ like swimming . ( not ) 17. Im sorry _that . ( hear ) 18. Wang Bing is_ ( write ) an E-mail to his friend .19. He has_a headache . ( get )20. _you study English at school ? Yes , I_. ( do )21. _your sister study English at school ? No , she_ . ( do )

10、22. Im _ better . ( feel ) 23. Why_Tom absent today ? ( be )2）用所给的人称改写句子1.I take photos on Sunday. ( Mike)2.We grow beautiful flowers. (she)3.They like collecting stamps. (Ben)4.I listen to music carefully. (my aunt)5.You like making a model ship. (Helen)6.We clean the classroom every day. (he)7.The

11、y look after the pandas. (Mr Wang)8.I draw a tree and some flowers. (Nancy)9.We go to bed at eight. ( my sister)10.I read newspapers in the evening. (Mr Green) 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)

12、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.1

13、2. They _(have) the same hobby.13. My aunt _(look) after her baby carefully.14. You always _(do) your homework well.15. I _(be) ill. Im 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 _(h

14、ave) eight lessons this term.20. What day _(be) it today? Its Saturday.21 We often _ (play) in the playground.22. He _ (get) up at six oclock.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 scho

15、ol.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?三、按照要求改写句子1. Daniel watches TV every evening

16、.(改为否定句)_2. I do my homework every day.(改为一般疑问句，并作否定回答)_3. She likes milk.(改为一般疑问句，并作肯定回答)_4. Amy likes playing computer games.(改为一般疑问句，并作否定回答)_5. We go to school every morning.(改为否定句)_6. He speaks English very well.(改为否定句)_7. I like taking photos in the park.(对划线部分提问)_8. John comes from Canada.(对划线

17、部分提问)_9. She is always a good student.(改为一般疑问句，作否定回答)_10. Simon and Daniel like going skating.(改为否定句)11. Do you often play football after school? (肯定回答) _12. I have many books. （改为否定句）_13. Gao Shans sister likes playing table tennis.（改为否定句）_14. She lives in a small town near New York. （改为一般疑问句）_15. I watch TV every day. （改为一般疑问句）_16. David has got a goal. （改为一般疑问句）_17. We have four lessons.（改为否定句）_18. Nancy doesnt run fast. （改为肯定句）_19. My dog runs fast. 否定句：_一般疑问句：_20. Mike has two letters for him.一般