五种基本时态PPT课件

1、.,1,五种常见的时态,.,2,把下列句子翻译成英文: 1.我正在浇花. 2.昨天我浇花了. 3.明天我将要浇花. 4.我每天都浇花. 5.我已经浇花了.,.,3,把下列句子翻译成英文:,1.我正在浇花.,I am watering the flowers now.,2.昨天我浇花了.,I watered the flowers yesterday.,3.明天我要给花浇水.,I will water the flowers tomorrow. or I am going to water the flowers tomorrow.,.,4,把下列句子翻译成英文:,4.我每天都浇花.,I wat

2、er the flowers every day.,5.我已经浇花了.,I have already watered the flowers .,.,5,五种常见时态的基本结构： 一、一般现在时：is /am/are； 动词原形及动词第三人称单数 二、一般过去时： was/were；动词过去式 三、现在进行时：am/is/are + doing 四、一般将来时：am/is/are/going to + do； will/shall + do. 五、现在完成时： have/has + done,.,6,1.Father often _( go) to work on foot.,goes,2.T

3、rains _(run) faster than cars.,run,5. I _(go) to visit a friend of mine yesterday.,went,6. She often_ (run) in the morning when she was young.,7.The dog _(run) after a cat now.,is running,8. They_ (build) the restaurant these days.,are building,ran,3.He _(be) busy every day.,is,4.He_ (be) a soldier

4、three years ago.,was,.,7,9.They _(fly) to Japan the day after tomorrow.,will fly,10. There _ (be) a meeting tomorrow afternoon.,Will be,11. My father _(come) back in two week.,Will come,12. I _(finish) my homework soon.,Will finish,13. Scientist _(invite) computer for many years,has invited,14.I_nev

5、er _(be) to Hong Kong.,have,been,15. I _(not be) abroad so far.,havent been,.,8,1.一般现在时,（1）表示经常发生或习惯性的动作或状态,（2）表示主语现在的性格、特征、能力,（3）表示客观事实或普遍用法,（4）用于状语从句代替一般将来时,eg.We often write to each other. 我们时常相互通信。,常与always，usually，often，sometimes，seldom, never, every day，once a week，yearly(every year)每年，monthly

6、(every month)每月， 等时间状语或频率副词连用。,eg.He works hard.他努力工作,eg.The sun rises in the east. Light goes faster than sound,eg.You will succeed if you try .,I will tell him about it as soon as I see him next Monday.,常与连词：when , as soon as , before , after , until , if 如果，等引导的时间状语或条件状语从句,.,9,2.一般过去时,(1).表示过去某一时

7、间点发生的动作或所处的状态. e.g. He arrived in Hangzhou an hour ago. Where were you just now?,(2).表示过去某一时间里反复出现的动作或状态. e.g. Their children often went hungry in the old days. During his middle school years, he played football nearly every day.,(3).表示主语过去的特征或性格等. e.g. At that time she spoke very good English.,(4).

8、一般过去时往往和明确的过去时间状语连用.如:yesterday, last night, two days (months, weeks) ago, in 1996, just now, at that time 等. e.g. Did you play volleyball yesterday afternoon? My father, when he was a child, worked 15 hours a day.,(5).一般过去时可与today, this week, this month等时间状语连用. e.g. I saw him today. He came late th

9、ree times this week.,.,10,3、一般将来时,1、用法：,表示将来某个时刻将要发生的动作或存在 的状态。 They _(fly) to Japan the day after tomorrow.,will fly,口语中大量使用be going to 结构表示事先 打算有意图要发生的动作或客观情况下即 将要发生的动作。,Look at the clouds. It is going to rain.,常用时间状语：tomorrow /next day（week, month, year ）/ in a few minutes / soon /the day after t

10、omorrow/ this evening ect 。,.,11,4.现在进行时,(1)意义：a.表示说话的此刻正在进行的动作。 常与now, at the moment/right now/look/listen/these days等连用。,例:Listen! Mary is singing an English song in the classroom.,b.表示现在时间段中正在进行的动作。,例:They are planting trees on the hill these days.,.,12,6.现在完成时,（1）意义：现在完成时表示过去发生或已经完成的动作对现在造成的影响或结

11、果,也可表示过去已经开始,一直延续到现在的动作或状态。,（2）结构：助动词have/has + 动词的过去分词,（3）四大标志词： * 以already, just和yet为标志：表示到现在为止动作或状态已经、刚刚或还没有发生 * 以ever和never为标志：表示到现在为止动作或状态曾经或从来没有发生过 * 以动作发生的次数为标志：He says he has been to the USA three times. * 以so far为标志：表示到目前为止动作或状态已经发生,(4.) * 时间“点”、“段”须分清 for+时间段 since+过去某一时刻,.,13,He _ back a month ago. (come) 2. My mother often_ (tell) me not to read in bed. 3. I must take it back the day after tomorrow. You can only _ it for 24 hours. (保存) 4. Please come to our meeting if you _free tomorrow. (be) 5. She _ to the Great Wall