一、
1）we read books the morning的否定句
we don't read books the morning.
2）疑问句
Do you read books the morning?
二、
一般现在时变否定句的规则.
(a) 含有 am is are 的句子,变否定句时,只需在am is are 后加not.
例1 This is a book.
否定句 This is not a book .
例2 I am a teacher .
否定句I am not a teacher .
例3 These are pens .
否定句These are not pens .
(b) 含有
实义动词的句子，变否定句分两步。
（1）如果主语是第三人称单数时，要在实义动词前加doesn't,后面的动词用原形。
例1 He eats an apple.
否定句 He doesn't eat an apple.
例2 Jim does his homework.
否定句 Jim doesn't do his homework.
例3 Marry goes to school.
否定句Marry doesn't go to school.
(2) 如果主语不是第三人称单数时，只 需在实义动词前加don't.
例1 I teach English.
否定句 I don't teach English.
例2 They go to school.
否定句 They don't go to school.
例3 We sing a song.
否定句 We don't sing a song.
(c) 含有
情态动词的句子,变否定句时, 只需在情态动词后加not.
例1 I can dance.
否定句 I can not dance.
或 I can't dance.
例2 They can speak English.
否定句 They can not speak English.
或 They can't speak English.
例3 He must go home.
否定句 He must not go home.
或 He mustn't go home.
例4 He must be on the playground.
He can not be on the playground.
析：当must be用来表示推测，有“一定”的含义时，
否定式要用can not.
例5 You must say something at the mecting.
You needn’t say anything at the mecting.
析：当“must+行为动词”用来表示“必须”的含义时，
其否定式可用needn’t 或mustn't表示“不需要”，“不必”，
语气委婉，must not表示“禁止”，“千万别”语气生硬。
例6 You may come in now.
You mustn't come in now.
析：may作为情态动词表示“可以”时，
其否定式用must not,而不用may not.
例7 He may watch TV .
He mustn't watch TV.
三、一般现在时的疑问句
1、借助于do 将
第一人称全部、第二人称全部、第三人称复数的行为动词构成的一般现在时的
陈述句改为
一般疑问句。
Do I
Do you
Do we play the violin every day?
Do you
Do they
肯定回答和否定回答见下表：
Do I play?
Yes, you do.
No, you don't.
Do you play?
Yes, I do.
No, I don't.
Does he（she,it） play?
Yes, he（she,it） does.
No, he（she,it） doesn't.
Do we play?
Yes, we（you） do.
No, we（you） don't.
Do you play?
Yes, we do.
No, we don't.
Do they play?
Yes, they do.
No, they don't.
2、借助于does 将第三人称单数的行为动词构成的一般现在时的陈述句改为一般疑问句。需注意的是改后的一般疑问句要用动词原形。
举例：
Does he（she） play the violin every day?
Does he（she） watch cartoons every day?
Does he usually do his homework after school?
Does he（she） carry the food every day?