第2个回答 2006-09-23
1.My/friends/run/fast.
一般现在时
肯定句 My friend runs fast.
否定句 My friend doesn't run fast.
一般疑问句 Does my friend run fast?
及其回答 Yes, he does.
No, he doesn't.
现在进行时
肯定句 My friend is running fast.
否定句 My friend isn't running fast.
一般疑问句 Is my friend running fast?
及其回答 Yes, he is.
No, he isn't.
2.Mr Black/have/breakfast.
一般现在时
肯定句 Mr Black has breakfast.
否定句 Mr Black hasn't breakfast.
一般疑问句 Does Mr Black have breakfast?
及其回答 Yes, he does.
No, he doesn't.
现在进行时
肯定句 Mr Black is having breakfast.
否定句 Mr Black isn't having breakfast.
一般疑问句 Is Mr Black having breakfast?
及其回答 Yes, he is.
No, he isn't.
3.They/play/games.
一般现在时
肯定句 They play games.
否定句 They don't play games.
一般疑问句 Do they play games?
及其回答 Yes, they do.
No, they don't.
现在进行时
肯定句 They are playing games.
否定句 They aren't playing games.
一般疑问句 Are they playing games?
及其回答 Yes, they are.
No, they aren't.
4.Her sister read a book.
一般现在时
肯定句 Her sister reads a book.
否定句 Her sister doesn't read a book.
一般疑问句 Does her sister read a book?
及其回答 Yes, she does.
No, she doesn't.
现在进行时
肯定句 Her sister is reading a book.
否定句 Her sister isn't reading a book.
一般疑问句 Is her sister reading a book?
及其回答 Yes, she is.
No, she isn't.
一般现在时表示经常的、习惯性的动作或存在的状态;也表示说话者的态度、能力或自然现象等等。如:
He often helps others.
I can singin English.
The earth goes round the sun.