课本中不会教你的[D]238 during和through
238 during和through
① during表示“在……期间”，强调在某段时间内发生了什么。
I often went to see her during my stay there. 我住在那里时常去看她。
These animals never go out of the hole during the whole winter. 在整个冬天，这些动物从不出洞。
提示
要注意的是，during不可与表示具体长度的时间词连用，这时要用介词for。for+时间名词表示所用的总的时间，for短语常用于完成时中，也可用于过去时。
He has lived here during a long time.
He has lived here for a long time.
他住在这里已经很久了。
Their discussion lasted for three hours. 他们的讨论持续了三个小时。（for可省去）
② through的本意是“通过，穿过”，表示“自始至终”。
He walked through the town. 他步行穿过小城。
She slept all through the day. 她睡了整整一天。
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