It is well-known that ____ ____(take drugs) is quite bad for our health.(是否用动名词?为什么?)

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/03 02:59:56
It is well-known that ____ ____(take drugs) is quite bad for our health.(是否用动名词?为什么?)

It is well-known that ____ ____(take drugs) is quite bad for our health.(是否用动名词?为什么?)
It is well-known that ____ ____(take drugs) is quite bad for our health.(是否用动名词?为什么?)

It is well-known that ____ ____(take drugs) is quite bad for our health.(是否用动名词?为什么?)
用 taking drugs 形式.
It 是形式主语,后面是主语从句.
从句也是一个句子,单单把从句拿出来作句子也是完整的,所以就单单看主语从句,那么就变成 Taking drugs is bad for our health.
这句话的主语又是 taking drugs,take 是一个动词,虽然动词也可以做主语,但是由于句中已经有 is 作系动词,而一个句子中不能有两个动词,所以要把一个动词作为主语,形式上要把 take 变成 taking,变成用动名词形式,这样一个实质上的动词就可以做名词用了,而且语法上不会有错误.
你还可以把那个主语从句变成 it is bad for our health to take drugs.
但前面已经有 it is 了,为了句子的多样性就不再用形式主语了.

taking drugs