关于“As 在句首不做比较连词用”

可能是一个老话题了，不过一直不能确认。

这种说法出自何处？是不是只是nn们的总结规律？

请赐教！

没有这种说法：）见下帖

http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=48608

就是在这个贴，LES版主强调“As 在句首不做比较连词用”

楼上的能举出几个og或者大全里出现过的反例吗？

找了很多语法书，都没有发现As ... do, ... do not这样的比较形式.

有没有人看到过这样的例句，帮忙跟个贴！

被这个句型搞得

不是有这个句型吗，（just) as A ..........., (so) B ..............

谢谢楼上，just as... so.. 是一个特殊句型，还不能作为直接证据。

不过，大全485是不是可以作为一个证据？

    Like Rousseau, Tolstoi rebelled against the unnatural complexity of human relations in modern society.

(A) Like Rousseau, Tolstoi rebelled

(B) Like Rousseau, Tolstoi’s rebellion was

(C) As Rousseau, Tolstoi rebelled

(D) As did Rousseau, Tolstoi’s rebellion was（A）

(E) Tolstoi’s rebellion, as Rousseau’s, was

In choice A, the best answer, a clear and logical comparison is made between Rousseau and Tolstoi. Choice B illogically compares a person, Rousseau, to an event, Tolstoi’s rebellion. Also, Tolstoi’s rebellion was against is less direct than Tolstoi rebelled against. Inserting did after As would make C grammatical. Because As is a conjunction, it must introduce a clause; hence the noun Rousseau must have a verb. Choice D compares an implied action (As did Rousseau) with a noun (Tolstoi’s rebellion). ....

是不是可以证明两点：

1）As 放在句首可以做比较连词

2）As do/did ...，这样的句型和As ... do/did一样是正确的，没有语序问题

请大家指正！