作业帮not to 和 don't 的区别.
来源：学生作业帮 编辑：拍题作业网作业帮 分类：英语作业 时间：2024/04/30 05:39:06
not to 和 don't 的区别.
We are often warned,by our teacher,______waster precious time because time will never return.为什么这里要用not to 而不用don't
We are often warned,by our teacher,______waster precious time because time will never return.为什么这里要用not to 而不用don't
谓语动词是实意动词时,用don't 对谓语进行否定；
而该句中并非是对谓语的否定,而是对不定式的否定.
分析：by our teacher 是插入语,没插入时是：we are often warned to waste precious time,
对不定式to waste 进行否定,直接在不定式前加not,就成了：
we are often warned not to waste precious time.
加入插入语就成了原句的情况：we are often warned,by our teacher,not to waste precious time.
而该句中并非是对谓语的否定,而是对不定式的否定.
分析：by our teacher 是插入语,没插入时是：we are often warned to waste precious time,
对不定式to waste 进行否定,直接在不定式前加not,就成了：
we are often warned not to waste precious time.
加入插入语就成了原句的情况：we are often warned,by our teacher,not to waste precious time.