cycle is punctuated with,其中is为什么不用过去时was

yck88222022-10-04 11:39:542条回答

cycle is punctuated with,其中is为什么不用过去时was
新概念第四册 stuff of dream 一课,有一句He showed that the average individual's sleep cycle is punctuated with...为什么前面用了过去时showed,后面宾语丛句中的is不用过去时was?

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dxl0201 共回答了20个问题 | 采纳率90%
从句中表示的一般情况,所以用现在时表示.
He showed that the average individual's sleep cycle is punctuated with peculiar bursts of eye-movements,some( drifting) and slow,others jerky and rapid.
他指出平常人的睡眠周期中不时伴有一阵阵奇怪的眼球活动,有的飘忽缓慢有的急剧快速
1年前
深夜一个人 共回答了2个问题 | 采纳率
他所说的话现在仍是客观事实,所以用is
1年前

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黑色_上衣1年前1
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