一般过去时现在进行时一般现在时时态讲解练习ppt课件.ppt

小学英语语法讲解,小学英语语法讲解,一般过去时,1一般过去时表示过去某个时间发生的动作或存在的状态，常和表示过去的时间状语连用。一般过去时也表示过去经常或反复发生的动作。,2Be动词在一般过去时中的变化：am 和is在一般过去时中变为was。（was not=wasnt）are在一般过去时中变为were。（were not=werent）,3句中没有be动词的一般过去时的句子否定句：didnt 动词原形，如：Jim didnt go home yesterday.,动词过去式变化规则：1一般在动词末尾加-ed，如：work-worked ; cook-cooked2结尾是e加d，如：live-lived ; like-liked ; taste-tasted,3末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如：stop-stopped 4以“辅音字母 y”结尾的,变y为i， 再加-ed，如：study-studied,5不规则动词过去式： am,is-was, are-were, do-did, see-saw, say-said, give-gave, get-got, go-went, come-came, have-had, eat-ate, take-took, run-ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank, swim-swam, sit-sat ,sweep-swept,写出下列动词的过去式 is/am_ plant_ are _drink_ play_ go_ make _,was,planted,were,drank,played,went,made,does_ dance_ worry_ ask _taste_ eat_ put _kick_ pass_ do _,did,danced,worried,asked,tasted,ate,put,kicked,passed,did,一、用be动词的适当形式填空1. I _ an English teacher now.2. She _ happy yesterday.3. They _ glad to see each other last month.,am,was,were,1. I _ (watch) a cartoon on Saturday.2. Her father _ (read) a newspaper last night. 3. We _ to zoo yesterday, we _ to the park. (go)4. _ you _ (visit) your relatives last Spring Festival?5. _ he _ (fly) a kite on Sunday? Yes, he _.,watched,read,went,went,Did,visit,Did,fly,did,6. Gao Shan _ (pull) up carrots last National Day holiday.7. I _ (sweep) the floor yesterday, but my mother _.8. What _ she _ (find) in the garden last morning? She _ (find) a beautiful butterfly.,pulled,swept,didnt,did,find,found,一般过去时句型转换的注意点:1、一般过去时的否定式是由主语didnt+动词原形组成。如 I went to school yesterday.(改成否定句)2、一般过去时的疑问句是由Did+主语动词原形构成。如She played volleyball just now._3、特殊疑问句由疑问词did+主语动词原形组成。如：They visited the farm last Sunday.(对划线部分提问)_,I didnt go to school yesterday.,Did she play volleyball just now.,Where did they visit the farm?,现在进行时,三、现在进行时1现在进行时表示现在正在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作。He is looking for his camera.(他正寻找照相机) 2现在进行时的肯定句基本结构为be +动词ing. 如：Look,they are watering the flowers now. 3现在进行时的否定句在be后加not。The boy is not picking up the carrots. 4现在进行时的一般疑问句把be动词调到句首。Is the boy picking up the carrots?,be,动词ing,+,动词加ing的变化规则1一般情况下，直接加ing，如：cook-cooking2以不发音的e结尾，去e加ing，如：make-making, taste-tasting3假如末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如：run-running, stop-stopping,一、写出下列动词的现在分词：play_ run_ swim _make_go_ like_ write_ _ski_ read_ have_ sing _ dance_,playing,running,swimming,making,going,liking,writing,skiing,reading,having,singing,dancing,二、用所给的动词的正确形式填空：1.The boy _ ( draw)a picture now.2. Listen .Some girls _ ( sing)in the classroom .3. Look,my mother _ ( cook )some nice food now.4. What _ you _ ( do ) now?,is drawing,are singing,is cooking,are,doing,三、句型转换1、Tom can speak Chinese.(改为现在进行时)2、She is working in a hospital now.(对划线部分提问)3、We are collecting eggs on the farm.（1）对划线部分提问：（2）变成否定句：（3）变成一般疑问句：,Tom is speaking Chinese.,Who is working in a hospital now?,Where are you collecting eggs?,We are not collecting eggs on the farm.,Are you collecting eggs on the farm?,一般现在时,一般现在时的功能：1.表示事物或人物的特征、状态。如：The sky is blue.天空是蓝色的。2.表示经常性或习惯性的动作。如：I get up at six every day.我天天六点起床。3.表示客观现实。如：The earth goes around the sun.地球绕着太阳转。,一般现在时的构成：1. be动词：主语 +be(am,is,are) 其它。如：I am a boy.我是一个男孩。2.行为动词：主语 行为动词 其它。如：We study English.我们学习英语。 当主语为第三人称单数(he, she,it)时，要在动词后加-s或-es。如：Mary likes Chinese.玛丽喜欢汉语。,一般现在时的变化：1. be动词的变化。否定句：主语 be not 其它。如：He is not a worker.他不是工人。一般疑问句：Be 主语 其它。如：-Are you a student? 你是一名学生吗？-Yes. I am. / No, Im not.是的，我是的/不，我不是。,2.行为动词的变化。否定句：主语 +dont( doesnt ) 动词原形( 其它)。如：I dont like bread.当主语为第三人称单数时，要用doesnt构成否定句。如：He doesnt often play. 一般疑问句：Do( Does ) +主语 +动词原形+ 其它。如：- Do you often play football?- Yes, I do. / No, I dont.,当主语为第三人称单数时，要用does构成一般疑问句。如：- Does she go to work by bike?- Yes, she does. / No, she doesnt.,动词 s的变化规则：1一般情况下，直接加-s，如：cook-cooks, milk-milks2以s. x. sh. ch. o结尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes3以“辅音字母 y”结尾，变y为i, 再加-es，如：study-studies,一、 写出下列动词的第三人称单数 drink _ go _ stay _ make _look _ have_ pass_ carry _come_ watch_ plant_ fly _,drinks,goes,stays,makes,looks,has,passes,carries,comes,watches,plants,flies,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 Mondays.4. Nick _(not go) to the zoo on Sundays.5. _ they _(like) the World Cup?,has,are,dont watch,doesnt go,Does,like,6. Mike _(like) cooking.7. They _(have) the same hobby.8. My aunt _(look) after her baby carefully. 9. You always _(do) your homework well.10. She _(go) to school from Monday to Friday.11. Liu Tao _(do) not like PE.,likes,have,looks,do,goes,does,一、按照要求写句子。1、Im making a model plane in the park.（对划线部分提问） Im making a model plane. in the park.（对划线部分提问） Im making a model plane in the park. （对划线部分提问） Im making a model plane in the park . （对划线部分提问）,What are you making in the park?,What are you doing in the park?,Who is making a model plane in the park?,Where are you making a model plane?,2、John is sleeping.改为一般疑问句，并作肯定回答改为否定句.,Is John sleeping? No, she isnt.,John is not sleeping.,二、对划线部分提问1、She often makes puppet in the park on Sundays.2、She often makes puppet in the park on Sundays.3、She often makes puppet in the park on Sundays. 4、She often makes puppet in the park on Sundays.5、She often makes puppet in the park on Sundays.6、She often makes puppet in the park on Sundays.(变成一般疑问句，并作否定回答),What does she often makes in the park on Sundays?,Where does she makes puppet on Sundays?,Who often makes puppet in the park on Sundays?,What does she often do in the park on Sundays?,When does she often makes puppet in the park?,Does she often makes puppet in the park on Sundays? No, she doesnt.,三、对划线部分提问：1、They planted trees in the garden yesterday.2、They planted trees in the garden yesterday.3、They planted trees in the garden yesterday.4、They planted trees in the garden yesterday.5、They planted trees in the garden yesterday.6、They planted trees in the garden yesterday.(变成一般疑问句，并作否定回答),Who planted trees in the garden yesterday?,What did they do in the garden yesterday?,What did they plant in the garden yesterday?,Where did they plant trees yesterday?,When did they plant trees in the garden?,Did they plant trees in the garden?No,they didnt.,