为什么prepare和wait用ing形式Second,busy people do not want to spend time preparing their own food or waiting while someone else prepares it.

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为什么prepare和wait用ing形式Second,busy people do not want to spend time preparing their own food or waiting while someone else prepares it.

为什么prepare和wait用ing形式Second,busy people do not want to spend time preparing their own food or waiting while someone else prepares it.
为什么prepare和wait用ing形式
Second,busy people do not want to spend time preparing their own food or waiting while someone else prepares it.

为什么prepare和wait用ing形式Second,busy people do not want to spend time preparing their own food or waiting while someone else prepares it.
spend sometime (in) doing something[in可以省略]
或者spend sometime on sth.
spend time (in) preparing their own food or waiting while someone else prepares it.
or 和and 衔接的两个词的词性相同.

spend time + doing sth.
而此句中prepare 和 wait 是并列的分句中动词,所以都用ING形式

spend time in doing sth.
而此句中prepare 和 wait 是并列的分句中动词,所以都用ING形式.in可以省。

这个地方用ing,而不用to prepare,是因为不定式用逻辑将要的意思,而这个地方是spend time做某事,没有逻辑将要,所以用ing罗。

Spend time (in)doing sth.
此处的In 可省略,意思是花费时间在某事上,wait 与prepare是并列的两个词,因此用法一样
另一表达法还有Spend time on sth