时态一般现在时一般过去时一般将来时课件.ppt
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1、英语时态,Grammar,1946,2017,2020,The Past,ED,时代,过去某个时间发生,的动作或者存在的,状态,Will,时代,将来某个时间要,发生的动作或存,在的状态,The Present,The future,Verb,时代,真理;主语的状态、,特征,经常或反复,发生的动作,Verb Tenses,The moon,moves,round the,earth,.,Do,you,like,smoking,?,你我和大家,,(,You,,,I and they,),动词不变化。,(,the Verb stays,),The Simple Present Tense,单数三人称
2、,,(,if,only one,),带个小尾巴。,(”,S”to the end,),?,一、一般现在时,(,simple present tense,),?,1.,形式,一般现在时通常用动词原形来表示。,be,动词用,am,、,is,、,are,。主语是第三人称单,数时动词的变化规律,:,一般动词后加,-s,;以,s,、,x,、,ch,、,sh,结尾,加,-es,;以辅音字母加,o,结尾,一般加,-es,;辅音字母加,y,结尾,变,y,为,i,加,-es,。,?,2,用法,?,a.,表示经常发生的动作或现阶段的习惯性行为,常与时,间状语,often,,,usually,,,always,,,
3、every day,,,sometimes,,,seldom,,,never,等连用。,?,I never do my homework in the evening.,?,Sometimes we play football on the playground.,?,He seldom listens to music.,b.,表示现在的事实或状态。,?,China is a developing country.,?,I like English very much.,c.,表示格言,科学事实和客观真理。,Pride,goes,before a fall.,骄者必败。,?,All thin
4、gs,are,difficult before they are easy.,凡事总是由难,而易。,?,Shanghai,lies,in the east of China.,上海位于中国东部。,?,The teacher,told,us yesterday that December 25,is,Christmas Day.,3.,句式,肯定,否定,疑问,回答,He likes eggs.He doesnt like eggs.Does he like eggs?,Yes,he does./No,he doesnt.,I want an apple.I dont want an apple.
5、Do you want an,apple?Yes,I do./No,I dont.,?,4.,做题时常见错误如下:,?,一、,be,动词与行为动词同时出现在句子中,?,例:,We are plant the trees in spring.,?,二、单三人称形式易出错,?,例:,1.,He play football very well.2.Danny goes(go),to school at 7:10.,?,三、在句式变换时易出错,?,例:,1.Does Jenny has a good friend?,?,2.Brian doesnt lives in China.,?,四、对,do,的
6、理解易出错,?,例:,We not do our homework in the afternoon.,?,五、对主语的数判断有误,?,例:,Li Ming with me are in Beijing.,?,另外,宾语从句中,从句部分若是表示客观真理,不管主,句是何时态,从句都要用一般现在时;在时间和条件状语,从句中,主句表将来,从句要用一般现在时。,1.Mary_ the piano well.She is often,asked to play at the concert.,A.play B.plays C.playing D.played,2.My mother will take
7、me to the movie if she,_ free this weekend.,A.is B.will be C.was D.would be,3.The girls will have a trip if it _fine.,A.is B.was C.will be D.has been,4.Hell send us a message as soon as he _ in,Sichuan.,A.is arriving B.will arrive,C.arrived D.arrives,5.,What do you do?,Im an engineer.I _ in a compan
8、y in,Wuhan.I like my job very much.,A.work,B.had worked,C.will work,D.worked,6.,Is your father a doctor?,Yes,he is.He_ in Town Hospital.,A.has worked B.had worked,C.works D.worked,7.Every year many foreigners _to China,to learn Chinese.,A.have come B.comes,C.came D.come,The Simple Past Tense,Gongmin
9、g,lived,in,Han Dynasty.,时间一过去,,结尾加,ed,;,尾巴有个,e,,,只要添个,d,;,重闭单辅音,,双写再,ed,;,辅音,y,结尾,,变为,-ied,。,?,一般过去时,(,simple past tense,),1,概念,一般过去时表示过去某一时,刻,某一段时间发生的动作或存在的状态。,一般过去时用动词的过去式表示。,?,2,构成,一般过去时用动词的过去式表示。,be,的过去式有,was,,,were,两种;,have,的过去式是,had,;规则动词的过去式在动词词尾加,-ed,,具,体构成规则如下:,?,1,)一般情况,动词后加,ed,,例词,work-wo
10、rked,,,clean-cleaned,,,play-played,,,wash-washed,?,2,)以不发音的,e,结尾,,-d,,例词,live-lived,,,move-moved,,,hope-hoped,,,arrive-arrived,?,3,)以辅音字母,+y,结尾,变,y,为,i,再加,-ed,,例词,study-studied,,,carry-carried,,,cry-cried,,,identify-,identified,?,4,)以辅音字母结尾的重读闭音节,双写最后一,个辅音字母加,-ed,,例词,plan-planned,stop-stopped,,,beg-
11、begged,,,grab-grabbed,?,3,用法,?,(1),表示发生在过去的动作或存在的状态。如:,He went shopping with his friends last week.,?,They arrived ten minutes ago.,?,He became a hotel manager ten years ago.,Did you go to the concert last night?,?,(2),表示在过去经常发生的动作或习惯动作。如:,He visited his grandparents once a month last,year.,?,She us
12、ually went to work by car last year.,?,When I was at school,I always went to school,by bus.,?,4,.,如何识别,一般过去时常见的标志词有:,1,),.yesterday,the day before,yesterday.,2,),.last week/year/month/,term(,简称,last,系列,),3,),.two hours ago,three years ago,a moment ago(,简称,ago,系列,),4,),.in/on+,过去的年,/,月,/,日,如,in,1999,
13、on April,2005,5,),.just now,once upon a time,one,day,?,5,.,易错点例析:,(,1,),Your phone number again?I,_ quite catch it.,?,Its 4331577,A.didnt,B.couldnt,C.dont,D.cant,?,(2),Mr.Smith isnt coming tonight.,?,But he _.,A.promises B.promised,C.will promise D.had promised,(3),Hey,look where you are going!,?,Oh
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