一般现在时。
1.表示习惯性，经常性的动作。或描述客观事实。
2.构成：主语+am/is/are+….主语+动词原形/三单+….
3.常用词：always /often /usually /sometimes /in the morning/everyday…
例如：(1)he is in class 1.
2)i watch tv every night.
do you watch tv every night?
yes,i do./no,i don’t.
-i don’t watch tv every night.
3)he often goes home on foot.
does he often goes home on foot?
yes,he,does/no,he doesn’t
-he doesn’t often go home on foot.
一般将来时
一．表示将要发生的动作。
二．构成：1、主语+shall或will+动词原形（shall 用于第一人称，will用于第。
二、三人称。）
2. 主语+be going to +动词原形。
三．常用词：tomorrow /tomorrow morning…./next week…,/in2016,/ soon,….in two days..
例如：i will(shall) arrive tomorrow
we are going to put up a building here.
注：（1） 根据某种迹象看要发生的事用be going to
lookat the clouds, i think it is going to snow.看云要下雪了。
（2） 表达事实用will
tomorrow will be saturday. 明天是周六了。
3）if【如果】，unless ,when【当…时候】， before ，after， not….until…,as soon as…,后面的从句常用一般现在时代替将来时。
一般过去时。
表示过去发生的事；
构成；1、主语+was/were+… 2、主语+实意动词的过去式+….
标志词：yesterday(morning/…)last(week/…)ago,just now,…
例： ⑴my parents were at home last sunday．
2)i cameto my house two days ago .
did you cometo my house two days agoyes,idid. /no,i didn’t.
i didn’t cometo my house two days ago .
动词的过去式变化；
1）直接加ed watched
2）辅音字母+y carry-carried
3）双写 stopped chat plan shop mop …
4）以不发音的字母e结尾的动词，去e再加-ed。如：live-lived。
5）特殊变化。
现在进行时。
表示现在正在发生的动作，或现阶段持续的动作。
构成；1、主语+am/is/are+动ing
时间状语：look!/listen!/now/at the moment/right now…
例：he is reading now.
过去进行时。
一、概念。过去进行时是表示过去某一时刻或某一时间内正在进行或发生的动作，
主语 + was/were + 动词ing + 其他。
标志词：at that time/moment, at 8:00 yesterday, at this time last month等。
可以从两个方面来理解：
1 过去某一时刻正在进行或发生的动作。
如： they were playing football at ten o’clock yesterday morning.
2 过去某阶段持续进行的动作。
如：i was staying at home from 2 to four yesterday..
三、也可用于when/while引导的时间状语从句中。
过去进行时+ when+一般过去时。
过去进行时+while+过去进行时。
一般过去时+while +过去进行时。
如：it was raining when they left the hospital.
jenny was reading while danny was writing.
现在完成时。
一、基本结构：主语+h**e/has+过去分词。
二、用法。1、指的是动作开始于过去某一时刻，一直延续到现在，或可能还要继续下去。
2. 与already（肯定）, yet（否定，疑问）, just, before, recently, for, since( …ago)， ever, never, twice a day, …times ，so far, in/during the last/past years…等时间状语连用。
3. been to 强调“去过”，现已回来。
gone to主要强调的是“去了”，还未回来，been in 一直在某地。
三、当句中有"for +段时间"或"since +点时间 "how long时，主句常用现在完成时，谓语动词必须是延续性动词，若是非延续性动词，要改为延续性动词或表状态的词(短语)。
如：tom has had (买)the cd player for two weeks.
常用瞬间动词相应持续性动词关系：
1、go—be away2、come—be here 3、come back—be back
4、le**e—be away（from…） 5、buy—h**e6、borrow—keep7、die——be dead
8、begin——be on9、finish—be over 10、open——be open 11、close——be closed 12、lose——be lost 13、get to know—know 14、turn on—be on 15、get up——be up
16、join—be in（…）或be a…member
18、become—be
注意：1、kate's never seen chinese films， has she
kate's at home,is she?
2. his uncle has already posted the photos to him. (改为否定句)
his uncle hasn't posted the photos to him yet.
3、it's +段时间+since+从句"进行句子转换。
sun's aunt has been there for ten years.
=sun's aunt went there ten years ago.
it's ten years since sun's aunt went there.
=it has been ten years since sun's aunt went there.
一般现在时。
一用动词的适当形式填空。
english every day.
school at seven in the morning.
school at seven in the morning.
mother___like) _go) shopping.
6. _hefly) a kite on sunday? yes, he __
7．iwrite) to you as soon as i __get) to
二写出下列动词的第三人称单数：
washmatch __guess___study___finishgo___snow___
三单项选择：
students will go to the summer palace if it __tomorrow.
t rain b. doesn't rain c. won't raind isn’t rain
2. the picture __nice. looked looking
3. we shall go to shanghai on business before you __back next week.
a. wil come b. came c. would come d. come
4. don't smoke until the plane __off. taken take
一般过去时。
一、写出下列动词的过去式。
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