【精品】小升初英语知识点精讲 do,be引导的祈使句课件PPT

小升初英语知识点精讲do,be引导的祈使句用于表达请求、命令、禁止或劝告的 句子；省略主语you；句末用感叹号或句号。 祈使句你知道祈使句分为哪两种类型吗？Keep off the grass!知识1Do引导的祈使句Wash your hands.Keep off the grass. Help me, please.Do+宾语+其他细心的你有什么发现呢？那祈使句的第二种类型是什么呢？知识2Be careful.Be a good boy. Be quietBe引导的祈使句Be+形容词/名词+其他Do型和Be型的否定式都是在句首加don't构成。 Don't forget me! Don't be late for school! 否定结构happy是形容词，因此要用be引导的祈使句；照看用“look after”，属于do引导的祈使句。汉译英高兴点儿。________________ 请照看好您的包。________________Be happy.Look after your bag.祈使句的否定形式直接在动词前加don’t.用所给词的适当形式填空 ______________ (not, make) any noise! Your mother is sleeping. Don’t make 1. _______ late again, Bill! A. Don't to be B. Don't be C. Not be D. BeCB根据句意：比尔，下次别迟到了。祈使句的否定形式是在动词前加Don’t. 易错1【错误答案】【解析】【正确答案】2. The TV is too loud. Please_________.A. turn down it B. to turn it down C. turn it downACturn down 属于动副短语，代词it要放中间。易错2【错误答案】【解析】【正确答案】Do + 宾语+…Be+形容词/名词+…祈使句否定形式在句首加don’t.