一般现在时语法讲解.doc

1、一、 定义与讲解 一般现在时：表示经常性的事情，经常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, week,month,year)，sometimes 有时，on weekends, at+在几点钟只有在第三人称单数用动词的“三单变化”，其他用动词的原形。三单变化：1.多数在动词后s : play plays like likes（1）直接在动词词尾加-s.ask-asks work-works get-gets stay-stays（2）以字母 s, x, ch, sh 或 o 结尾的动词，在词尾直接加-es.watch-w

2、atches wish-wishes fix-fixes do-doesgo-goes pass-passes（3）以“辅音字母加 - y”结尾的动词，要先变 y 为 i 再加-es.try-tries study-studies cry-cries fly-flies情况 构成方法 读音 例词一般情况 加 -s清辅音后读/s/ 浊辅音和元音后读/z/swim-swims；help-helps；like-likes以辅音字母+o 结尾的词 加 -es 读/z/ goes,does以 s,sh,ch,x 等结尾的词 加 -es 读/iz/ watches,washes以辅音字母+y 结尾的词 变

3、 y 为 i 再加 es 读/z/ study-studies 不规则变化 have和 be 动词变 have 为 has 变 be为 am,is,are have-has be-am,is,are2.不规则变化：be- am,is,are have-has二、一般现在时的用法 表示经常性或习惯性的动作或存在的状态；表示客观事实或普遍真理；在时间、条件等状语从句中，用现在时表示将来；在某些以 here，there 开头的句子中，用一般现在时表示正在发生的动作1) 经常性或习惯性的动作，常与表示频度的时间状语连用。时间状语： every, sometimes, at, on SundayI le

4、ave home for school at 7 every morning.2) 客观真理，客观存在，科学事实。The earth moves around the sun.Shanghai lies in the east of China.3) 表示格言或警句中。Pride goes before a fall. 骄者必败。当主语是第三人称单数时：1、动词变相应的第三人称单数形式2、肯定句主语+动词 s+其它3、否定句主语+doesnt+动词原形+其它4、一般疑问句 Does+主语+动词原形+其它5、肯定回答 Yes，主语+does6、否定回答 No，主语+doesnt7、特殊疑问句特殊

5、疑问词+一般疑问句当主语不是第三人称单数时：1、肯定句 主语+动词原形+ 其它2、否定句 主语+dont+动词原形 +其它3、一般疑问句 Do+主语+ 动词原形+ 其它4、要注意，句式结构错则全都错。5、谓语动词的形式：do/does三、一般现在时的结构 一般现在时的结构肯定式 疑问式 否定式 否定疑问式I work. Do you work? I dont work. Dont you work?You work. Do you work? You dont work. Dont you work?We work. Do you work? We dont work. Dont you wo

6、rk?They work. Do they work? They dont work. Dont they work?He(She,It) works. Does he(she,it) work? He(She,It) doesnt work. Doesnt he(she it) work?练习：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

7、.5.My mother_(like) _(go) shopping. 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

8、.The student_(speak) Chinese after class. 15. Lets_and play football . ( go ) 16. He_ like swimming . ( not ) 17. Im sorry _that . ( hear ) 18. He_making soup . ( be good at )19. He _ making soup. (do well in )20. _you study English at school ? Yes ,I_. ( do )21. _your sister study English at school

9、 ?No,she_.(do)22. How _ Scott feel today? . ( do ) 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（种植） beautiful flowers. (she)3.They like collecting stamps（集邮）. (Ben)4.I listen to music carefully. (my aunt)5.You like making a model ship(轮船模型). (Helen)6.We clean the classroom every day. (he)7.They look after （照顾）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) Eg：肯定句He is watching TV now. Eg：肯定句We are working.