一般現(xiàn)在時語法講解

1、一、定義與講解一般現(xiàn)在時：表示經(jīng)常性的事情，經(jīng)常性的動作或一般性事實。時間狀語： often 經(jīng)常，usually 通常，always 總是，every(day, week,month,year) , sometimes 有時， on weekends, at+在幾點鐘只有在第三人稱單數(shù)用動詞的=三單變化”，其他用動詞的原形。一|三單變化：1.多數(shù)在動詞后+ s : play plays like likes(1)直接在動詞詞尾加-s.ask-askswork-worksget-gets stay-stays(2)以字母s, x, ch, sh或。結(jié)尾的動詞，在詞尾直接加 -es.watch-

2、watcheswish-wishesfix-fixesdo-doesgo-goes pass-passes(3)以 輔音字母加-y”結(jié)尾的動詞，要先變 y為i再加-es.try-triesstudy-studiescry-cries fly-flies情況構成方法塊日例詞一般情況加-s清輔首后讀/s/濁 輔音和元音后讀/z/swim-swims ; help-helps; like-likes以輔音字母+o結(jié) 尾的詞加-es讀/z/goes,does以s,sh,ch,x等結(jié)尾的詞加-es讀/iz/watches,washes以輔音字母+y結(jié) 尾的詞變y為i再加es讀/z/study-studi

3、es不規(guī)則變化have 和be動詞變 have 為 has變 be 為 am,is,arehave-has be-am,is,are2.不規(guī)則變化:be- am,is,arehave-has二、一般現(xiàn)在時的用法表示經(jīng)常性或習慣性的動作或存在的狀態(tài)；表示客觀事實或普遍真理；在時間、條件等狀語從句中，用現(xiàn)在時表示將來；在某些以here, there開頭的句子中，用一般現(xiàn)在時表示正在發(fā)生的動作1)經(jīng)常性或習慣性的動作，常與表示頻度的時間狀語連用。時間狀語：every ，sometimes, at ，on SundayI leave home for school at 7 every morning

4、.2)客觀真理，客觀存在，科學事實。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. 驕者必敗。當主語是第三人稱單數(shù)時：1、動詞變相應的第三人稱單數(shù)形式2、肯定句主語+動詞s+其它3、否定句主語+doesnt+動詞原形+其它4、一般疑問句Does+主語+動詞原形+其它5、肯定回答 Yes,主語+does6、否定回答 No,主語+doesnt7、特殊疑問句特殊疑問詞+一般疑問句當主語不是第三人稱單數(shù)時：1、肯定句主語+動詞原形+其它2、否定句

5、主語+dont+動詞原形+其它3、一般疑問句 Do+主語+動詞原形+其它4、要注意，句式結(jié)構錯則全都錯。5、謂語動詞的形式：do/does 三、一般現(xiàn)在時的結(jié)構一般現(xiàn)在時的結(jié)構疑問式否定式否定疑問式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?練習:1)用動詞的適當形式填空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)用所給的人稱改寫句子take photos on Sunday. ( Mike).We grow (種植)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(輪船模型).(Helen).We clean the classroom every day. (he).They look after(照顧)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.一般疑問句Is he watching TVnow?一般疑問句Are you working肯定回答Yes,