一般现在时教案.pdf
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1、一般现在时一般现在时一、一、定义定义(1)(1)表示经常发生或习惯性发生的动作时,用一般现在时态。表示经常发生或习惯性发生的动作时,用一般现在时态。I often watch TV at home.I usually get up at six.I do my homework every night.(2)(2)表示客观的事实,用一般现在时态。表示客观的事实,用一般现在时态。There are seven days in a week.The sky is blue。二、二、特征词特征词一般现在时的好朋友(1)every+every+时间时间:every day/every week/eve
2、ry month/every year/every morning/every afternoon/every evening(2)频度副词:频度副词:always/usually/often/sometimes/rarely/seldom/never(3)次数次数:一次 once两次 twice三次 three times一周两次 twice a week每周四次 four times a week每周六 on Saturdays每周日 on Sundays三、一般现在时的构成三、一般现在时的构成(1)(1)肯定句的结构肯定句的结构be动词:主语+be(am,is,are)+其它。I am
3、a boy.He is happy.行为动词:主语+行为动词(+其它)。We study English.The boy plays basketball.注意:注意:当句子主语是 I,we,they,you(第一、二人称)或复数名词时,动词用动词形。当句子的主语是 he,she,it或单数名词(第三人称单数)时,动词要用第三人称单数的现在式形态(在动词后面加-s或-es)。Mary likes Chinese.复习:人称单数复数第一人称Iwe1/8第二人称you第三人称Hesheit第三人称单数动词变化一般动词后加 syoutheywears,reads,works,makes,likes,
4、laughs,buys以 s,x,ch,sh 结尾,后加 eswatches,brushes,teaches,guesses,catches.以辅音字母+o结尾,一边加 es辅音字母+y结尾的单词,变 y为 I,加 es特殊形式goes,doesWorries,carrieshave-has课堂巩固操练(造句)1:Tom、clean the room2:A Cat、eat fish3:Mary、watch TV4:My mother、work in a factory练习1.把下列人称归类Tom,Jiamin,I,my father,you,they,my cousin,her daughte
5、r,our teacher,he,she,it,your sister,his friend,his friends,their brother,their brothers,the cat,little dog,thetable,my bag第一人称:第二人称:第三人称单数:第三人称复数:2.选择适当的词填空(1)I _(have,has)a beautiful toy bear.(2)They _(have,has)some postcards.(3)Tim _(have,has)a new basketball.(4)My sister _(have,has)three green sk
6、irts.(5)I _(like,likes)playing chess.(6)He _(like,likes)listening to the radio.(2 2)否定句的结构)否定句的结构be动词:人称+Be(am,is,are)动词否定形式+其它.Be动词的否定形式2/8肯定形式amisare否定形式 am not is not are not缩写形式isntarente.g.:I am not a boy.He isnt happy.行为动词:人称+助动词否定形式+行为动词(+其它)第三人称单数一般现在时的否定形式,在行为动词前加 doesnt(does not).e.g.:I ge
7、ts up early.I dont get up early.We dont study English.注意:一旦遇见注意:一旦遇见“doesnt”“doesnt”“do”“do”这两个词时,动词必须还原。这两个词时,动词必须还原。e.g.The girl likes eating fruits very much.The girl doesnt like eating fruits at all.Does the girl like eating fruits?课堂巩固操练1:Tom、clean the room2:A Cat、eat fish3:Mary、watch TV4:My mo
8、ther、work in a factory练习 考考你把下面的句子改为否定形式:He is a worker.He often play basketball.The students are happy everyday。I usually go to the zoo with my mother.。We spend two hours on our homework every night.。The cat looks lovely.They dance after school.(3 3)一般疑问句的结构)一般疑问句的结构(一般疑问句读音升调)Be动词+主语+其它?Yes,主语+Be动
9、词 No,主语+Be not.E.g.:Are you Jim?Yes,I am(这里不能缩写).No,Im Tom.Is your father tall?Yes,he is.No,he isnt.助动词(dodoes)+主语+动词原形(+其它)?Yes,主语+dodoes.No,主语+dodoes not.E.g.:Do you have a story book?Yes,I do.No,I dont.Does Lily go to school by bike?Yes,she does.No,she doesnt.3/8课堂巩固操练He is in red.Is he in red?Ye
10、s,.No,.She is beautiful.Is she beautiful?Yes,.No,.She looks thin.Does she look thin?Yes,.No,.如果主语是 this that,回答时用 it 代替,如果问句中主语 these,those,回答时用they 代替。e.g.Is this your bag?Yes,it is.No,it isnt.Are those oranges?Yes,they are.No,theyarent.课堂巩固操练 课堂现场情景句子转换This is his book.Is this his book?Yes,it is.N
11、o,it isnt.That is a schoolbag.Is that a schoolbag?Yes,it is.No,it isnt.This one makes me happy.Does this one make you happy?Yes,it does.No,itdoesnt.These are desks.Are these desks?Yes,they are.No,they arent.陈述句变一般疑问句应注意的事项 a.如果陈述句中有第一人称,则变问句时最好要变为第二人称。e.g.:I usually have lunch at school.Do you usual
12、ly have lunch at school?My father is playing soccer.Is your father playing soccer?b.如果陈述句中有 some,则变问句时往往要变成 any。e.g.:I have some friends in America.Do you have any friends in America?课堂巩固操练I listen to the music every Saturday.We likeTom&Jerry .I know some stories in this book.小试牛刀变一般疑问句并作肯定和否定回答。1.H
13、e wants a book.2.Jimmy washes hands before dinner.3.Lisa likes milk very much.4.They walk to school.5.Lingling and Dandan are 10 years old.4/86.I am Chinese.7.Ben is from America.(4 4)特殊疑问句的结构)特殊疑问句的结构(特殊疑问句读音降调)特殊疑问词+助动词(dodoes)+主语+动词原形+其他?eg:Where do you do study English?特殊疑问词+be动词+主语+其他?【即 疑问词+一般
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