时态(一般现在时 一般过去时 一般将来时)ppt课件.ppt
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1、英语时态(一般现在时 一般过去时 一般将来时),Grammar,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,(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;
2、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,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 li
3、ke 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 things 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?Y
4、es,he does./No,he doesnt.I want an apple.I dont want an apple.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 do
5、esnt lives in China.四、对do的理解易出错例: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.played2.My mother wi
6、ll take me to the movie if she _ free this weekend.A.is B.will be C.was D.would be3.The girls will have a trip if it _fine.A.is B.was C.will be D.has been4.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 compa
7、ny in Wuhan.I like my job very much.A.work B.had worked C.will work D.worked6.Is your father a doctor?Yes,he is.He_ in Town Hospital.A.has worked B.had worked C.works D.worked7.Every year many foreigners _to China to learn Chinese.A.have come B.comes C.came D.come,The Simple Past Tense,Gongming live
8、d 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-worked,clean-cleaned,play-played,wash-washed2)以不发音的e结尾,-d,例
9、词live-lived,move-moved,hope-hoped,arrive-arrived3)以辅音字母+y结尾,变y为 i再加-ed,例词study-studied,carry-carried,cry-cried,identify-identified4)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-plannedstop-stopped,beg-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 mi
10、nutes 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 usually 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 bef
11、ore 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,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 4331577A.didnt B.couldnt C.dont D.cant(2)Mr.Smith isnt co
12、ming tonight.But he _.A.promises B.promisedC.will promise D.had promised(3)Hey,look where you are going!Oh,Im terribly sorry._.A.Im not noticing B.I wasnt noticing C.I havent noticed D.I dont notice,(4)Oh its you!I _ you.Ive had my hair cut.A.didnt realize B.havent realized C.didnt recognize D.dont
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