一般现在时语法讲解

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。一|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-askswork-worksget-gets stay-stays(2)以字母s, x, ch, sh或。结尾的动词，在词尾直接加 -es.watch-

2、watcheswish-wishesfix-fixesdo-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-triesstudy-studiescry-cries fly-flies情况构成方法块日例词一般情况加-s清辅首后读/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y为i再加es读/z/study-studi

3、es不规则变化have 和be动词变 have 为 has变 be 为 am,is,arehave-has be-am,is,are2.不规则变化:be- am,is,arehave-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 leave home for school at 7 every morning

4、.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

5、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 work?They work.Do they work?They dont work.Dont they work?He(She,

6、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 inthemorning.4.Mike(go)to school at seven inthemorning.5.My mother(like)(go) shopping.6.I can(draw) many beautiful pictures.7.She(make) a

7、 modelplane.8.Do you(like)(run)?9.Does he(like)(jump) ?10.Does Nancy(grow)flowers onSaturday11.The teachers(like)(dance).12.The teacher(like)(dance).13.The students(speak) English in class.14.The student(speak) Chinese after class.15. Lets and play football . ( go )16. He like swimming . ( not )17.

8、Im sorry that . ( hear )18. He making soup . ( be good at )He making soup. (do well in )you study English at school ? Yes ,I. ( do )your sister study English at school ?No,she.(do)How Scott feel today? . ( do )Why Tom absent today ? ( be )2)用所给的人称改写句子take photos on Sunday. ( Mike).We grow (种植)beauti

9、ful flowers. (she).They like collecting stamps (集由 B) . (Ben).I listen to music carefully. (my aunt).You like making a model ship(轮船模型).(Helen).We clean the classroom every day. (he).They look after(照顾)the pandas. (Mr Wang).I draw a tree and some flowers. (Nancy).We go to bed at eight. ( my sister).I read newspapers in the evening. (Mr Green)Eg:肯定句He is watching TVnow.Eg:肯定句We are working.否定句He is not watching TV now.否定句We are not working.一般疑问句Is he watching TVnow?一般疑问句Are you working肯定回答Yes,