现在进行时态和一般现在时态
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. 我们正在等你
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 练习一(写出下列单词的-ing形式) 1 begin 2 come 17 put 3 eat 4 know 18 shop 5 show 6 sit 19 swim 7 speak 8 go 20 stop 9 see 10 do 21 wait 11 have 12 wear 22 clean 13 ride 14 feel 23 listen 15 study 16 sing 24 discuss 练习二(用所给单词的适当形式填空) 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? 二.一般现在时态。
*一般现在时的构成:分为be动词和行为动词两种情况。
1、be(is,am,are)作谓语动词,后面加名词,形容词,介词等。” 2.行为动词作谓语动词:根据句子主语有两种情况
1)、当主语是第三人称单数由动词原形加词尾-s或-es构成三单形式动词。 2)、当主语不是第三人称单数(非三单),一律用动词原形。
3)、助动词do/does用于行为动词一般现在时态的疑问句和否定句,does是do的三单形式,否定形式分别为don’t/doesn’t。助动词后动词恢复原形。 *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。 *行为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 练习一(写出下列单词的第三人称单数) 1 help 11 fix 2 make 12 teach 3 swim 13 wash 4 leave 14 close 5 know 15 go 6 play 16 fly 7 get 17 carry 8 ride 18 study 9 boy 19 be 10 guess 20 have 练习二(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.