初1英语高手进

both of
either or
neither nor
all of

both of both and 之间的区别
both of us：我们两个都

both he and I:我和他都

后者更突出了具体所指的哪两者，前者是概括的
eg: Both of us knew it.

我们两个都知道这件事

Both of them like dancing.

他们两人都喜欢跳舞。

Both of them speak German.

他们俩都讲德语。

He asked both of you.

他问你们两人。

Both audible and visible.

视听的听觉的和视觉的

both of 的反义词组 :neither ..nor.
eg: neither attractive nor tempting.

既不吸引人也不诱惑人的。

both and 的反义词组 :neither ..nor
都是强调:2者都不...

either or
eg: Either i or he will be selected.
我或者他会被选到..

both of是指两者都......
用于肯定句

all of是指所有人（或物）都...（超过两个）
若all of用于否定句中（例如Not all of...)，是“不全是”的意思，千万不要误认为是“全部都不是”。
Not all of us went to school yesterday.昨天我们不全都来上学。

neither of是指“两者都不...”
用于否定句
Neither of us speaks English.