判断英语一般现在时的用法

1． 一般现在时
一般现在时的形式
是以动词的原形表示的,当主语为第三人称单数时,做谓语的动词原形后要加上词尾-s or –es,其构成方式列表如下：
情况 构成 例词
一般情况 词尾加-s Reads,writes
以ch,sh,s,x,o结尾的词 词尾加-es Teaches,washes,guesses,fixes,goes
以辅音字母+Y 结尾的词 变Y为I,再加-es Tries,carries
但是,动词to be 和to have 的一般现在时的形式特殊如下：
一般动词的词形变化 To be 的词形变化 To have 的词形变化
I know it I am a student I have a pen.
You know it.You are a student You have a pen
He (she) knows it.He (she) is a student.He (she)has a pen.
We (you,they) know it.We (you,they) are students.We (you,they) have pens.
一般现在时的功用
1.表示一直发生的事情,经常发生的动作：
Nurses look after patients in hospitals.
Excuse me,do you speak English?
I get up at 8 o’clock every morning.
It often rains in summer in Beijing.
2.表示客观事实或者真理：
Birds fly.
The earth goes around the sun.
3.谈论时间表、旅程表等,如：
What time does the film begin?
The football match starts at 8 o’clock.
Tomorrow is Thursday.
4.谈论籍贯、国籍等,如：
Where do you come from?
I come from China.你是哪国人?我是中国人.
Where do you come from?
I come from Guangzhou.你是哪里人?我是广州人.
5.询问或者引用书籍、通知或新近接到的信笺内容,如：
What does that notice say?
What does Ann say in her letter?
She says she’s coming to Beijing next week.
Shakespears says,“Neither a borrower or a lender be.”
莎士比亚说：“既不要向人借钱,也不要借钱给别人.”