第一课时：三种时态专练。
一般现在时态的用法。
1) 经常性或习惯性的动作，常与表示频腮度的时间状语连用。
2) 客观真理，客观存在，科学事实。
3) 表示格言或警句中。
4) 现在时刻的状态、能力、性格、个性。
动词的第三人称单数变化。
1、一般情况在词尾加-s
2、以字母s,x,ch,sh,o 结尾加-es
3、以辅音字母加y结尾的动词，先变y为i再加es
一般现在时的构成：be(is,are,am,are) h**e(has)
除第三人称单数由动词原形加词尾-s或-es构成外，其他一律用动词原形。
一般现在时的标志：
every day,usually,often,always,sometimes,never.
练习一（写出下列单词的第三人称单数）
练习二（用所给单词的适当形式填空）
___be) in the same city— ruler and four pencils in the box.
pencils and a ruler in the box. black hair.
___go) to school by bike every usually___get)up early in the morning.
brother,kenwatch)tv sometimes. father often___walk)after supper.
peter___love)the new the manwork) hard every day?
their parents usuallyvisit)china? auntnot like) music in her spare time.
studentsnot plant)trees every year.
现在进行时态的用法。
一、现在进行时的构成：be+v+ing. 助动词be的形式要根据主语的人称和数来决定。
1．现在进行时的标志：look!listen!now等词。
2．现在进行时的基本用法：
a. 表示现在( 指说话人说话时) 正在发生的事情或当前一段时间内的活动或现阶段正在进行的动作。
we are waiting for you. i’m doing my homework now. they are watching tv.
b. 习惯进行：表示长期的或重复性的动作，说话时动作未必正在进行。
mr. green is writing another novel(**). 说话时并未在写，只处于写作的状态。)
3.动词-ing的变形规则。
1）一般情况直接加-ingplay—playing look—looking go—going
2）以不发音的e结尾，去e加ingwrite—writing take—taking close—closing
3）重读闭音节，双写末尾的字母，再加ing。 swim—swimming put—putting run—running
练习一（写出下列单词的-ing形式）
练习二（用所给单词的适当形式填空）
grandmarun)after the grandson. students __sing)an english song.
go __read) a book now.
childrennot listen) to the music now. they __h**e) breakfast now?
your fatherfish) now?
一般过去时态的用法。
1.表示在确定的过去时间里所发生的动作或存在的状态。
2.表示在过去一段时间内，经常性或习惯性的动作。
3.一般过去时的标志：yesterday,yesteday evening,two weeks ago,last week,in 1995等。
4.动词过去式的变化。
1）规则变化。
1）一般情况直接+ed 如：work-worked play-played
2）以e结尾的词只加-d 如：live-lived dance-danced
3）以“辅音字母+y”结尾的词，变y为i再加-ed 如：study-studied
4) 以重读闭音节结尾，且末尾只有一个辅音字母的词，先将这个字母双写，再加-ed. 如：stop-stopped plan-planned
2）不规则变化。
练习三。hot last year.
)in the north in 1987.
class late yesterday morning.
night i __do) my homework and___h**e)a bath.
5.--how do you like the book?--ilike) it very much.
6. when___you___h**e)breakfast yesterday?
see)you yesterday.
bottles of orange on the desk a moment ago.
my cousinwrite) a letter to me.
you （go）just now?
i was a child, i often (play) football in the street.
you (do)last weekend?
一、用所给的动词的适当形式填空。
___be) windy yesterday.
you __for the math test yesterday? (study)
3.--when did you h**e the meeting(会议)? we __h**e) it last week.
black __come) to china with his family in 1990.
___be) you away from school yesterday afternoon?
h**e) any money with me at that time.
and tom __be not) at home just now.
8.--who cleaned the blackboard (黑板) this morning? -lin tao __do).
9.--when __you __go) home on that day? -i __go) home at five.
friendhis homework last monday. (not do)
usually (watch) tv at home.
12. they (speak) english every day?
you ( help) me with (swim)?
had fun ( go) fishing last sunday.
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