小学英语4种时态总结.doc

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1、小学英语时态小结一:现在进行时:1、概念:用在叙述某人正在做某事的时候。(某动作正在进行)其结构是“be动词 + 动词ing”,句中可能会有look,listen,now或一个相当具体的时间。2、时间状语:now, at this time3、基本结构:am/is/are+doing4、否定形式:am/is/are+not+doing5、一般疑问句:把be动词放于句首6、动词加“ing”(现在分词)的变化规则:1)、直接在动词后面加“ing”2)、“元音+辅音+e”结尾的单词把e去掉再加ing。3)、重读闭音节双写最后字母再加ing,单词有:runrunning、swimswimming、pu

2、tputting、getgetting、shopshopping7、例句What is Mary doing? Shes shopping.Is Betty swimming now? No, she isnt. Shes running.Its seven thirty in the evening. Were having dinner at home.现在进行时:be(am, are, is)+ doing肯定句:be + doing否定句:be not + doing疑问句:Be + 主语 + doing?listen look, now its .1. 直接加ing2. 双写加ing

3、3. 去e加ing二:一般现在时:1、概念:经常、反复发生的动作或行为及现在的某种状况。用来叙述经常性发生的事情、习惯和爱好等。2.时间状语: always, usually, often, sometimes, every week (day, year, month), once a week, on Sundays, 3.基本结构:动词原形(如主语为第三人称单数,动词上要加s或es)4.否定形式:此时态的谓语动词若为行为动词,则在其前加dont,如主语为第三人称单数,则用doesnt,同时还原行为动词; am/is/are+not。5.一般疑问句:若有be动词,把be动词放于句首;用助动

4、词do提问,如主语为第三人称单数,则用does,同时,还原行为动词。6、如果叙述的人或事物是第三人称单数行为动词要加上,其变化规则和名词的复数形式变化规则一样。1.) John likes going hiking. 2.) Mary often gets up at seven oclock.3.) Mr. Li cooks supper every evening.4.) How does he go to school? -He goes to school on foot.5.) Does he go to school on Saturday? -Yes, he does.(第三人称

5、单数一般疑问句句前是does,句中的动词要用原形。)动词第三人称单数变化规则(与名词的复数形式变化规则一样):1)直接在动词后面加“s”。2)以“s、x、sh、ch”结尾的单词,在动词后面加“es”。wash-washes watch-watches fish-fishes3)以“辅音+y”结尾的单词,把y改i再加es。 carry-carries study-studies fly-flies4)go 和do 的第三人称单数是goes 和does叙述的人或事物不是第三人称单数行为动词要用原形。7、例句I usually go to school on foot.We play footbal

6、l every Sunday afternoon.What do they do on Sundays? -They play chess. 一般现在时:肯定句:主语+do, 主语第三人称单数+ does 否定句:主语+dont+do 主语第三人称单数+doesnt+do疑问句:Do+主语+do? Does+主语第三人称单数+do?usually, sometimes, often, seldom, never, every day1.直接加s,es, 2. 某些y-i加s,es 三:一般过去时:1、概念:一般过去时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态连用, 2.时间

7、状语:ago, yesterday, the day before yesterday, last week(year, night, month)3.基本结构: was/were +形容词; 例:I was a student in 1989行为动词(动词原形变过去式)例:I played baskedball yesterday afternoon4.否定形式:was/were+not;在行为动词前加didnt,同时还原行为动词。5.一般疑问句:was或were放于句首;用助动词do的过去式did 提问,同时还原行为动词。6. 动词过去式的变化:规则动词的变化:一般动词+ed 例:plan

8、t-planted,climb-climbed以不发音的e结尾+d 例:like-liked辅音字母加y结尾变y为i+ed 例:study-studied, cry-cried重读闭音节单词,末尾只有一个辅音字母,双写最后一个字母+ed 例:stop-stopped,plan-planned一般过去时肯定句:动词用过去式 否定句:didnt + 动原 疑问句:Did+动原before, ago, this morning, yesterday, last .过去时要注意的问题:1.有did, didnt就没有 was, were, wasnt, werent2. was, were, wasn

9、t, werent 是表示过去的状态或场所不会出现did, didntI was at home yesterday.You werent at school yesterday.They were strong before.动词过去式变化:1.直接加2.有e加d3.辅音yi加ed4.双写加ed5.特殊变化肯定句: I visited my grandparents last weekend.I usually played with my friends last year.I was busy last weekend.They were sad yesterday.否定句: I did

10、nt visit my grandparents last weekend.I wasnt busy last weekend.They were not sad yesterday.一般疑问句: Did you visit you grandparents last weekend? Yes, I did. / No, I didnt.Were you busy last weekend? Yes, I was. / No, I wast.Yes, we were. / No, we werent.特殊疑问句: What did you do yesterday? I played foot

11、ball.Where did Mike go last weekend? He went to the library.How did you go there? I went by bus.Where were you yesterday? I was at home.四:一般将来时:1、概念:叙述将要发生的事情或打算。表示将要发生的动作或存在的状态及打算、计划或准备做某事。2.时间状语:tomorrow, next day(week, month, year),soon, in a few minutes, by,the day after tomorrow, etc. 3.基本结构:am

12、/is/are/going to + do;结构是be going to+动词原形。如果所接的动词原形刚好是go或come,可把to go 和to come 去掉。例:I am going to go to school this afternoon= I am going to school this afternoonwill + do. 4.否定形式:am/is/are/going to +not+ do;will + not; 在行为动词前加will not,同时还原行为动词。5.一般疑问句:be放于句首;will提到句首。1.) What are you going to do to

13、morrow? -I am going to visit my grandparents.What will you do tomorrow? -I will visit my grandparents.2.) Are they going to sweep the floor tonight? -Yes, they are.will they sweep the floor tonight? -Yes, they will.3.)Where is Sarah going (to go) next week? -Shes going (to go) the park.Where will Sarah go next week? -She will go the park.一般将来时:1.be going to + do2. will + do肯定句:will/be going to + do否定句:will not/be not going to + do疑问句:Will + 主语 + do?Be + 主语 + going to do?tomorrow next. this afternoon the day after tomorrow soon

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