新目标英语七年级一般过去时ppt课件.ppt
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1、The Simple Past Tense,一般过去时态,新目标英语七年级语法解析,一、用法:1.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,如:last night,in 1990,two days ago,yesterday等。,He went to work by bus last year.,I was ten years old last year.,2.也表示过去经常或反复发生的动作,常和表示频度的时间状语连用。如:often,always,usually,sometimes 等。He was often late for school last week.
2、He always went to work by bus last year.,二、规则动词过去式的构成,大多数动词的过去式是在动词原形后加 ed 构成。1)一般情况下在词尾直接加 ed.如:play played;work worked;stop stopped 2)以e结尾的动词只加d.如:like-liked;love loved 3)以辅音字母+Y结尾的动词,变y 为i,再加ed.如:study studied;worry worried4)以重读闭音节结尾的动词,如果末尾只有一 个辅音字母,要双写最后这个辅音字母,再 加ed.如:want-wanted,三、动词过去式ed的读音,-
3、ed 的读音规则如下:清音t;浊元d;t d后面读id.1)在清辅音后面读t.work worked;help helped 2)在浊辅音或元音后读d.learn learned 3)在t 和d 后读id.stop stopped,巧记动词过去时态,动词一般过去时,表示过去发生的事;be用was或用were,have,has变had;谓语动词过去式,过去时间作标志;一般动词加-ed,若是特殊得硬记。否定句很简单,主语之后didnt添;疑问句也不难,did放在主语前;如果谓语之前有did,谓语动词需还原;动词若是was,were,否定就把not添。,四、一般过去时的分类,1be 动词的一般过去时
4、态:有人称和数的变化(am/is 的过去式为was;are的过去式为were.)肯定句:主语+was(were)+I was late yesterday.否定句:主语+was(were)+not+We werent late yesterday.疑问句:Was(Were)+主语+?Were you ill yesterday?肯定回答:Yes,主语+was/were.Yes,I was.否定回答:No,主语+wasnt/werent.No,I wasnt.特殊疑问句:特殊疑问词+一般疑问句+?When were you born?,2实义动词的一般过去时态:没有人称和数的变化肯定句:主语+动
5、词过去式+I went home at eight yesterday.否定句:主语+didnt+动词原形+I didnt go home at eight yesterday.疑问句:Did+主语+动词原形+?Did you go home at eight yesterday?肯定回答:Yes,主语+did.Yes,I did.否定回答:No,主语+didnt.No,I didnt.特殊疑问句:特殊疑问词+一般疑问句+?When did you go home yesterday?,一、按要求转换句型:,1.Iwasatschool yesterday.否定句:一般疑问句:肯定回答:否定回
6、答:划线提问:,1.Iwasatschool yesterday.否定句:Iwasnt atschool yesterday.一般疑问句:Were you atschool yesterday?肯定回答:Yes,I was.否定回答:No,I wasnt.划线提问:Where were you yesterday?,2.Theywerebankclerks tenyearsago.否定句:一般疑问句:肯定回答:否定回答:划线提问:,2.Theywerebankclerks tenyearsago.否定句:Theywerent bankclerks tenyearsago.一般疑问句:Were
7、theybankclerks tenyearsago?肯定回答:Yes,they were.否定回答:No,they werent.划线提问:What were they ten years ago?What did they do ten years ago?,3.He wasapoliceofficer in2003.否定句:一般疑问句:肯定回答:否定回答:划线提问:,3.He wasapoliceman in2003.否定句:He wasnt apoliceman in2003.一般疑问句:Was heapoliceman in2003?肯定回答:Yes,he was.否定回答:No,h
8、e wasnt.划线提问:What was he in 2003?What did he do in 2003?,4.Hewenttothemovieslastnight.否定句:一般疑问句:肯定回答:否定回答:划线提问:,4.Hewenttothemovieslastnight.否定句:Hedidnt gotothemovieslastnight.一般疑问句:Did hegotothemovieslastnight?肯定回答:Yes,he did.否定回答:No,he didnt.划线提问:What did he do last night?When did he go to the mov
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