Unit 19 一般现在时
一般现在时表示经常发生的动作或存在的状态。
语法讲解
一般现在时的形式
1．be 动词的一般现在时。
主语＋be(am/is/are) ＋其他
I am ateacher. 我是一名老师。
She is astudent. 她是一名学生。
They are doctors. 他们是医生。
2．实义动词的一般现在时。
主语＋动词原形／动词单三＋其他
I often read English in the morning. 我经常在早上读英语。
He exercises every day. 他每天锻炼。
一般现在时的用法1．表示经常性或习惯性的动作或存在的状态。常与always, often, usually 等连用。
I usually go to work by bus. 我通常坐公交车去上班。
2．表示客观真理或科学事实。
The earth moves around the sun. 地球绕着太阳转。
3．表示格言或警句。
Pride goes before a fall. 骄者必败。
4．表示按预先计划、安排好将要发生的动作。
I start for Suzhou this week. 这周我打算去苏州。
注意 ：主语为单数第三人称时，动词要变成单三形式。
巧学妙记
动词变单三的规则
动词单三现在式，一般词尾加s；
s，x，sh，ch在词尾，直接加上es；
词尾若是字母o，加上es不用愁；
“辅音＋y”来结尾，变y为i是正规；
es后边紧跟随，study–studies看明白。
语法练习
一、用括号里的词改写句子。
e.g. I am a teacher. （he）
He is a teacher.
1．I often play football after school.(Wang Lin)
Wang Lin often __________ football after school.
2．They have lunch at school.(she)
She __________ lunch at school.
3．We go to school every day.(Mr. Wu)
Mr. Wu __________ to school every day.
4．I don't do my homework in the morning.(Li Tao)
Li Tao __________ his homework in the morning.
二、按要求完成下列句子。
1．I am nine.（改为否定句 ）
2．Is your father a policeman?（作肯定回答）
3．They are happy.（改为一般疑问句）
4．Do you like playing games?（作否定回答）
5．He wants to see a new movie.（变成一般疑问句 ）
_____ he __________ to see a new movie?
三、读一读，连线将句子补充完整。
1．I play A．bath at 9:00 in the evening.
2．I don't like B．the bed every morning.
3．I want to C．volleyball. I like tennis.
4．I take a D．the drums.
5．I make E．be a policeman.
四、说一说你的班级，并写下来。
This __________ my class. There students in my class. The classroom __________ big. It __________ clean. There __________ a blackboard in the classroom. Our English teacher __________ good at English. She __________ short. She __________ very nice. We like her very much. We __________ happy in English class.
答案
一、1．plays
2．has
3．goes
4．doesn't do
二、1．I'm not nine.
2．Yes, he is.
3．Are they happy?
4．No, I don't.
5．Does, want
三、1．D
2．C
3．E
4．A
5．B
四、is, are, forty, is, is, is, is, is, is, are
