这里it is 是指什么,有as.as it is 这种句型吗,请翻译一下句子The brain is as active during REM sleep---when most vivid dreams occur---as it is when fully awake.

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这里it is 是指什么,有as.as it is 这种句型吗,请翻译一下句子The brain is as active during REM sleep---when most vivid dreams occur---as it is when fully awake.

这里it is 是指什么,有as.as it is 这种句型吗,请翻译一下句子The brain is as active during REM sleep---when most vivid dreams occur---as it is when fully awake.
这里it is 是指什么,有as.as it is 这种句型吗,请翻译一下句子
The brain is as active during REM sleep---when most vivid dreams occur---as it is when fully awake.

这里it is 是指什么,有as.as it is 这种句型吗,请翻译一下句子The brain is as active during REM sleep---when most vivid dreams occur---as it is when fully awake.
后面的it指大脑.整句话说：大脑在REM睡眠时——这时候是大多逼真梦境出现的时候——和大脑完全清醒的时候是同样活跃的.

有as....as 句型，单独as it is是‘ 事实上,实际上,照现在的样子’的意思
大脑眼动睡眠时，逼真梦境的发生，跟它在清醒的时候是同样活跃的。

大脑在REM入睡过程中——在极其逼真的梦里——与在完全清醒时一样活跃。
这个是AS...AS的句式，这里 IT IS指代when

大脑在快速眼动时的活跃程度和其在清醒时一样，这就是最清晰的梦出现的时候。
---中间的是插入语，这句话就被简化成‘the brain is as active during REM sleep as it is when fully awake.’
是一个as。。。as句型，it is是后面接的一个从句

有as....as it is 这种句型！
it指的是“the brain”。
“it is”＝“it is active”＝“the brain is active”
说白了，这是形容词的同级比较结构：“as active as it is ”
全句中文意思：
熟睡时在眼睛快速转动的时候大脑是活跃的---当产生生动的梦境时--那个时候大脑是完全...

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有as....as it is 这种句型！
it指的是“the brain”。
“it is”＝“it is active”＝“the brain is active”
说白了，这是形容词的同级比较结构：“as active as it is ”
全句中文意思：
熟睡时在眼睛快速转动的时候大脑是活跃的---当产生生动的梦境时--那个时候大脑是完全清醒的。

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