一现在进行时的构成Beving
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(小说). (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-ing。
Play—playing look—looking go—going 2)以不发音的e结尾,去e加ing。
Write—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
1.Look!The grandma ________(run)after the grandson. 2.Listen!The students _______(sing)an English song. 3.Don’t go out.It___________(rain)hard now. 4.Tom _______(read) a book now.
5.The children _________(not listen) to the music now. 6.Are they _______(have) breakfast now? 7.Is your father _________(fish) now?
二.一般现在时的构成:be(is,are,am,are) have(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. 一般现在时的用法
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
(用所给单词的适当形式填空) 1.We ______ (be) in the same city—Shenzhen.
2.There______(be)a ruler and four pencils in the box. 3.There______(be)four pencils and a ruler in the box. 4.She_______(have) black hair.
5.He _______(go) to school by bike every day.
6.Sandy usually______(get)up early in the morning. 7.My brother,Ken,________(watch)TV sometimes. 8.His father often_______(walk)after supper. 9.Does Peter_______(love)the new school?
10.Does the man_________(work) hard every day? 11.Do their parents usually ________(visit)China?
12.My aunt ________(not like) music in her spare time. 13.The students___________(not plant)trees every year.
三.一般过去时:
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
1.It __________(be)very hot last year.
2.We __________(be )in the North in 1987.
3.She _________(go)to class late yesterday morning.
4.Last night I ______(do) my homework and________(have)a bath. 5.---How did you like the book?---I __________(like) it very much. 6. When______ you________(have)breakfast yesterday? 7.I ___________(not see)you yesterday.
8.There_____(be)three bottles of orange on the desk a moment ago. 9.Yesterday my cousin__________(write) a letter to me.