人教版七年级上册《英语》一般现在时讲解（15张PPT）ppt课件.pptx

1、一般现在时一般现在时 讲讲解解知识梳理一、一般现在时的用法一、一般现在时的用法 一般现在时表示经常性、规律性、习惯性或真理性的动作或状态，一般现在时表示经常性、规律性、习惯性或真理性的动作或状态，常与常与“always“always，often often，usually usually，sometimes sometimes，seldom seldom，never never，every every时间词时间词”等时间状语连用。如果句子中的主语是第一、第二人称或其他复等时间状语连用。如果句子中的主语是第一、第二人称或其他复数形式的名词，动词用原形；如果主语是第三人称单数形式或其他表示数形式的

2、名词，动词用原形；如果主语是第三人称单数形式或其他表示单数概念的名词，动词用第三人称单数形式。单数概念的名词，动词用第三人称单数形式。如：如：I like play the piano.I can play it well.I like play the piano.I can play it well.We finish our homework on time at home every day.We finish our homework on time at home every day.He always goes to school at about 7 He always goe

3、s to school at about 7:00 in the morning.00 in the morning.She is 20 years old.She is 20 years old.The earth is round.The earth is round.二、动词第三人称单数形式的变化规则二、动词第三人称单数形式的变化规则 1 1.一般情况下一般情况下，直接在动词词尾加，直接在动词词尾加-s-s。如：如：readreadsreadreads，playplaysplayplays 2.2.以以s s，x x，o o，shsh，chch结尾的动词，在词尾加结尾的动词，在词尾加-e

4、s-es。如：如：gogoesgogoes，washwasheswashwashes 3 3.以 辅 音 字 母 加以 辅 音 字 母 加 y y 结 尾 的 动 词，把结 尾 的 动 词，把 y y 改 为改 为 i i 再 加再 加-e s-e s。如：如：studystudiesstudystudies，flyfliesflyflies 4.4.特殊形式特殊形式。如：如：havehashavehas，beisbeis 三、一般现在时的句型结构三、一般现在时的句型结构 1.1.含有含有be be 动词的句子动词的句子 （1 1）肯定句：）肯定句：主语主语be be 动词其他。如：动词其他。

5、如：Im 14 years old this year.Im 14 years old this year.（2 2）否定句：主语）否定句：主语bebe动词动词notnot其他。如：其他。如：I am not in Grade 4 this year.I am not in Grade 4 this year.（3 3）一般疑问句：）一般疑问句：BeBe主语其他？如：主语其他？如：Are you from America Are you from America？2.2.含有实义动词第三人称单数形式的句子含有实义动词第三人称单数形式的句子 （1 1）肯定句：）肯定句：主语实义动词的三单形式其他

6、主语实义动词的三单形式其他。如：。如：Mike plays computer games every Saturday afternoon.Mike plays computer games every Saturday afternoon.（2 2）否定句：主语）否定句：主语does does notnot（doesntdoesnt）实义动词（原形）其他）实义动词（原形）其他。如：如：MikeMike doesnt play computer games every Saturday afternoon.doesnt play computer games every Saturday af

7、ternoon.（3 3）一般疑问句：一般疑问句：DoesDoes主语实义动词（原形）其他主语实义动词（原形）其他？如：？如：Does Mike play computer games every Saturday afternoon Does Mike play computer games every Saturday afternoon？3.3.含有实义动词原形的句子含有实义动词原形的句子 （1 1）肯定句：主语肯定句：主语 实义动词（原形）其他实义动词（原形）其他。如：。如：We study in No.1 Primary School.We study in No.1 Primary

8、 School.（2 2）否定句：主语否定句：主语dodo notnot（dontdont）实义动词（原形）其他）实义动词（原形）其他。如：如：We do not We do not（dontdont）studystudy in No.1 Primary School.in No.1 Primary School.（3 3）一般疑问句：一般疑问句：DoDo主语实义动词（原形）其他主语实义动词（原形）其他？如：？如：Do you study in No.1 Primary School Do you study in No.1 Primary School？举一反三一、一、Read and fi

9、ll.Read and fill.用括号内所给单词的适当形式填空。用括号内所给单词的适当形式填空。1.He often _ 1.He often _（havehave）dinner at home.dinner at home.2.The boy always _ 2.The boy always _（teachteach）his sister maths after his sister maths after dinner.dinner.3.We 3.We _ _（not watchnot watch）TV on Mondays.TV on Mondays.4.Mike and his f

10、ather sometimes _ 4.Mike and his father sometimes _（readread）newspapers newspapers together.together.5.Jack _5.Jack _ _（not ridenot ride）a bike to school on Fridays.a bike to school on Fridays.hashasteachesteachesdont watchdont watchreadreaddoesnt ridedoesnt ride二、二、Ask and answer.Ask and answer.根据答

11、句写问句。根据答句写问句。1.A1.A：_ B B：My sister can sing and dance.My sister can sing and dance.2.A2.A：_ _ B B：No,my father isnt at home.No,my father isnt at home.3.A3.A：_ _ B B：He usually reads books in the park.He usually reads books in the park.What can your sister do?What can your sister do?Is your father a

12、t home?Is your father at home?What does he usually do in the park?What does he usually do in the park?过关检测一、一、Read and write.Read and write.写出下列动词的第三人称单数形式。写出下列动词的第三人称单数形式。1.sit _ 2.swim _1.sit _ 2.swim _3.go _ 4.make _3.go _ 4.make _5.run _ 6.study _5.run _ 6.study _7.watch _ 8.wash _7.watch _ 8.wa

13、sh _9.say _ 10.play _9.say _ 10.play _11.be _ 12.have_11.be _ 12.have_sitsswimsgoesmakesrunsstudieswatcheswashessaysplaysishas二、二、Read and choose.Read and choose.单项填空。单项填空。（）1.He _ to school from Monday to Friday.1.He _ to school from Monday to Friday.A.go B.goes C.going A.go B.goes C.going（）2.The e

14、arth _ around the sun.2.The earth _ around the sun.A.moving B.moves C.moved A.moving B.moves C.moved（）3.Miss Li _ music.3.Miss Li _ music.A.teaches our B.teaches us C.teach our A.teaches our B.teaches us C.teach our（）4._ Linda _ back at seven every day4._ Linda _ back at seven every day？A.Is A.Is；co

15、ming B.Does coming B.Does；comes C.Does comes C.Does；come comeBBBC（）5.Lily doesnt _ a music lesson in the afternoon.5.Lily doesnt _ a music lesson in the afternoon.A.have B.has C.having A.have B.has C.having（）6.What _ your mother often _ on 6.What _ your mother often _ on Sundays Sundays？A.is A.is；do

16、ing B.does doing B.does；do C.do do C.do；does does（）7.I _ apples and she _ pears.7.I _ apples and she _ pears.A.like A.like；like B.like like B.like；likes C.likes likes C.likes；likes likesABB三、三、Read and fill.Read and fill.用括号内所给单词的适当形式填空。用括号内所给单词的适当形式填空。1.My father _ 1.My father _（bebe）at home today.

17、at home today.2.Jane and Joe _ 2.Jane and Joe _（bebe）students.They _ students.They _（bebe）in the park now.in the park now.3._ 3._（bebe）you a bus driver you a bus driver？4.We often _ 4.We often _（playplay）on the playground.on the playground.5.He _ 5.He _（getget）up at six oclock every day.up at six oc

18、lock every day.6._ 6._（dodo）you _ you _（brushbrush）your teeth every your teeth every morningmorning？7.What _ he usually _ after school7.What _ he usually _ after school？（dodo）is isareareareareAreAreplayplaygetsgetsDoDobrushbrushdoesdoesdodo8.Danny _ 8.Danny _（studystudy）English,Chinese,English,Chine

19、se,mathsmaths,science,science and art at school.and art at school.9.Mike sometimes _ 9.Mike sometimes _（gogo）to the park with his sister.to the park with his sister.10._ 10._（dodo）MikeMike _ _（readread）English every day English every day？11.How many lessons _ 11.How many lessons _（dodo）youryour clas

20、smates classmates _ _（havehave）on Monday on Monday？12.What time _ his mother _ the housework12.What time _ his mother _ the housework？（dodo）studiesstudiesgoesgoesDoesDoesreadreaddodohavehavedoesdoesdodo四、四、Ask and answer.Ask and answer.根据答句写问句。根据答句写问句。1.A1.A：_ B B：I can wash the clothes.I can wash t

21、he clothes.2.A2.A：_ B B：I often clean the room at home.I often clean the room at home.What can you doWhat can you do？What do you often do at homeWhat do you often do at home？3.A3.A：_ B B：Yes,she often goes shopping on the weekend.Yes,she often goes shopping on the weekend.4.A4.A：_ _ _ B B：My brother

22、 likes drawing pictures.My brother likes drawing pictures.5.A5.A：_ B B：No,he is a doctor.No,he is a doctor.Does she often go shopping on the weekendDoes she often go shopping on the weekend？Whats your brothers hobbyWhats your brothers hobby？/What does your brother like/What does your brother like doingdoing？Is he a driver/teacher/farmer Is he a driver/teacher/farmer？