英语语法专项练习 句子专项训练 1一、 把下列陈述句改为否定句。1. We go to school on Sunday.We don ’ t go to school on S unday. 答案解析:陈述句改为否定句时,如果句中没有 be 动词,找主语,如果主语不是第三人称单数,时态是一般现在时,在主语后加 don’t。2. We’ll go to the park this afternoon.We won ’ t go to the park this afternoon. 答案解析:陈述句改为否定句时,will 的否定形式是 won’t。3. I am watching TV now.I am not watching TV now. 答案解析:陈述句改为否定句时,当句中有 be 动词时,在 be 动词后 not。4. Jack’father is a teacher. Jack ’ father isn ’ t a teacher. 答案解析:陈述句改为否定句时,当句中有 be 动词时,在 be 动词后 not。5. The dog runs fast.The dog doesn ’ t run fast. 答案解析:陈述句改为否定句时,如果句中没有 be 动词,找主语,如果主语是第三人称单数,时态是一般现在时,主语后加 doesn’t。6. The baby can speak.The baby can ’ t speak. 答案解析:陈述句改为否定句时,句中有 can ,may 等时,在主语后直接加 not。7. There is some water in the bottle.There isn ’ t any water in the bottle. 答案解析:陈述句改为否定句时,当句中有 be 动词时,在 be 动词后 not,some 要改为 any。8. Her mother works hard.Her mother doesn ’ t work hard. 答案解析:陈述句改为否定句时,如果句中没有 be 动词,找主语,如果主语是第三人称单数,时态是一般现在时,主语后加 doesn’t。9. They like reading books.They don ’ t like reading books. 答案解析:陈述句改为否定句时,如果句中没有 be 动词,找主语,如果主语不是第三人称单数,时态是一般现在时,在主语后加 don’t。10. We had lessons this morning.We didn ’ t have lessons this morning. 答案解析:陈述句改为否定句时,如果句中没有 be 动词,找主语,如果主语不是第三人称单数,时态是一般过去时,在主语后加 didn’t。11. I have a doll.I don ’ t have a doll. 答案解析:陈述句改为否定句时,如果句中没有 be 动词,找主语,如果主语不是第三人称单数,时态是一般现在时,在主语后加 don’t...