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1、时态与句型转换,一般现在时与现在进行时,Look, read and judge:判断下列句子的时态,LOOK! The birds are singing. I often go to school by bus. Mike goes shopping on Sundays. They are having an English lesson now. Its six oclock. Ben is having supper. Helen plays football after school.,LOOK,are singing,often,on Sundays,are having,now
2、,Its six oclock,is having,plays,goes,after school,go,现在进行时,现在进行时,现在进行时,一般现在时,一般现在时,一般现在时,Present Continuous Tense （现在进行时）,Simple Present Tense （一般现在时）, 标志词 动词的形式,Present Continuous Tense （现在进行时）,构成：,构成：Be+动词ing,练习：拼读出下列动词的ing 形式. 1.help_ e_ 3.swim_ 4.eat_ 5.give_ 6. take_ 7.sit _ 8. play_,helping,co
3、ming,swimming,eating,giving,taking,playing,sitting,Present Continuous Tense （现在进行时）,1) 一般情况下，在动词原形后直接加-ing. 如：workworking dodoing,2) 以不发音的字母e结尾的动词，去掉e再加-ing. 如：dancedancing comecoming (但动词词尾是字母组合ee的,就不能去掉词尾e， 而应直接加-ing。例如: seeseeing),3) 重读闭音节单词，如果末尾只有一个辅音字 母，则双写这一字母，再加-ing. 如： getgetting shopshoppin
4、g runrunning swimswimming,Simple Present Tense （一般现在时）,Present Continuous Tense （现在进行时）,动词+ing （现在分词）,动词原形,动词第三人称单数形式 （简称三单形式）,主语是第三人称单数， 动词要使用三单形式。,动词形式,Look, read and judge: 判断下列人称是不是三单,用yes或no回答,Mike_ we _ your sister_ my mothers student_ it_ Yang Lings dog_ his brother_ Helen and Su Yang_ you_,除
5、了I，除了you, 除了复数，剩下的都是三单。,当主语是第三人称单数时，动词要使用三单形式。,1.I like playing football. He playing football. 2. Mike and I have some stamps. Yang Ling some stamps, too.,likes,has,1.wash washes 2. stay stays 3.guess guesses 4.study studies 5.take takes 6.go goes 7.stop stops 8. see sees 9.drive drives 10.play play
6、s 11.fly flies 12.find finds 13. teach teaches 14.wash washes,Exercise:拼读出下列单词的三单形式,1.wash_ 2. stay _ 3.guess_ 4.study_5.take_6.go_ 7.stop_8. see_ 9.drive_ 10.play_ 11.fly_12.find_ 13. teach_ 14.wash_,Simple Present Tense （一般现在时）,(2)以s, x, sh, ch结尾的单词，或当 o前为辅音字母,加es,watches teaches goes does washes
7、brushes,(3)以辅音字母加y结尾的单词，将y改为i加es:,studystudies flyflies carrycarries crycries,但在y前如果为元音则直接加s,buys says,runs gets likes takes plays climbs,(1)多数动词直接加s:,(4)特殊变形：,havehas gogoes,Exercise:用所给词的适当形式填空 （根据标志词判断时态，进而确定动词形式）,1. Mike often_ (play) football in the playground. 2. Mike _(play) football in the p
8、layground now. 3. Listen! Nancy is_ (sing) 4.What _ (do) he usually _ (do) after school? 5.Danny _ _(study) English and Art at school. 6. Mike _ (go) to the park with his sister now. 7.Its eight oclock, she _ _ _ (watch) TV . 8.Where is Mike? He_ _ (read) English in the classroom.,plays,is playing,s
9、inging,does,do,studies,is going,is watching,is reading,1. Mike often_plays_ (play) football in the playground. 2. Mike _is playing_(play) football in the playground now.,Exercise:根据要求完成句子 1.Mike goes to school from Monday to Friday. (用now替换from Monday to Friday） 2.Nancy usually swims on Sundays. (用n
10、ow替换on Sundays) 3.Liu Tao is having an English lesson now. (用on Tuesday替换now),now,Mike is going to school now.,Nancy is swimming now.,Liu Tao has an English lesson on Tuesday.,Tips:,（时间，频率等）,特定,He wants a book. 2. Jimmy is washing clothes.,变一般疑问句 有be动词/情态动词的，将be动词/情态动词放到句子开头。 没有be动词/情态动词的，在句子开头加Do,三
11、单加does. 变一般疑问句，遇someany，Iyou，weyou ,myyour, ouryour,一、变一般疑问句：,Does he want a book?,Is Jimmy washing clothes?,1.Mike likes milk very much. 2. They walk to school. 3. Ling Ling and Mike are singing now. 4. I am Chinese. 5. Ben can run fast.,1.Does Mike like milk very much?,2.Do they walk to school?,3.
12、Are Ling Ling and Mike singing now?,4.Are you Chinese?,5.Can Ben run fast?,He wants a book. 2. Jimmy is washing clothes.,二、变否定句,变否定句 有be动词/情态动词的，在be动词/情态动词后加not. 没有be动词/情态动词的，在人称的后面，动词的前面加dont, 三单加doesnt.变否定句，遇someany.,He doesnt want a book.,Jimmy is not washing clothes.,1.Mike likes milk very much.
13、 2. They walk to school. 3. Ling Ling and Mike are singing now. 4. I am Chinese. 5. Ben can run fast.,1. Mike doesnt like milk very much.,2. They dont walk to school.,3. Ling Ling and Mike are not singing now.,4.I am not Chinese.,5.Ben cant run fast.,三、对划线部分提问（变特殊疑问句）,1. He wants a book. 2. Mike is
14、washing clothes.,特殊疑问词： what, where, how, who, whose 由特殊疑问词引导的问句特殊疑问句,Who is washing clothes?,What does he want?,where: 哪里？ 问地点 what：什么？ 问事，物，职业等 what time 什么时间（具体几点） what colour 什么颜色 what animal 什么动物 When 什么时候 问日期，星期几或不具体的时间 how:怎么，怎样？问方法，状态。 How old 几岁 How long (时间）长度 How far (距离）长度 How many？多少(可数
15、名词)，问数量。 How much？多少(不可数名词)，问“不可数名词的数量” who：谁。 问“人”。 whose：谁的。问“物品的主人” 。,How many+可数名词复数。,(注意whose的拼写),（名词所有格和物主代词）,1.Mike likes milk very much. 2.They go to school by bike. 3. Ling Lings book is on the desk. 4.I am a doctor. 5. I work there for two years.,2.How do they go to school?,3.Whose book is
16、 on the desk?,1.What does Mike like very much?,4.Who is a doctor?,5. How long do you work there?,Exercise: (铅笔抄题，黑色水笔答题） 1.Helen usually takes photos on Sundays. (用now代替on Sundays) 2.Su Yang likes dancing with her sister. (变为一般疑问句） 3.Does he swim well? (变为否定句） 4.Mike often makes model ships after school. (对划线部分提问）,
