内容正文:
一、一般现在时
一般现在时的谓语构成:
1、be动词:am/is/are
2、行为动词:
A:动词原形
B:动词+-s (主语为单三)
闪
记
动词be
一般现在时
am I am ...
is he/she/it is ...
are we/you/they are ...
动词第三人称
单数变化
+s
write – writes
+es
go – goes
wash – washes
watch – watches
fix – fixes
变y为i+es
study – studies
辅音字母+y结尾的词
特殊变化
have – has
一般现在时的用法:
1、一般现在时表示现在经常发生或习惯性的行为或状态,常与usually, always, every day, twice a week, seldom, sometimes等时间状语连用。
eg: He always sleeps with the windows open/closed.
他总是开(关)着窗子睡
2.表示客观事实或普通真理(不受时态限制)
1. The geography teacher told us the
earth (move) around the sun.
2. Water (boil) at 100oC.
moves
boils
3、一般现在时表示主语的性格、特征、能力等。
eg:He works hard .
他工作很努力。
He can speak English.
He likes sports.
客观真理,客观存在,科学事实或表示格言或警句。
1.In some parts of the world, such as in England , tea ____ with milk and sugar.
is serving B. serves C. is served D. served
2.----The girl ____ weight recently.
----Yes , she _____ too much.
has gained ,is eating B. gains ,eats
C. i