不知道应该怎么理解这个题.

kittyinuk

Teratomas are unusual forms of cancer [U]because they are composed of tissues such as tooth and bone[/U] not normally found in the organ in which the tumor appears.

E. in that they are composed of tissues such as tooth and bone, tissues

答案里把becasue 换成了in that,可是这两个词不是一个意思吗? 还有,最后一个分句是个省略句吧? 为什么用逗号隔开就可以,但是连着写就不对呢?
有点不理解,请大家帮忙讲讲,谢谢[em08]

bluehero_3

选A:
A：normallly found  in...修饰 tooth and bone X
B：tussues, 同位语，表意清楚
in that 与because 的区别这里不是考点
多练练official guide

liushiyou

e好一些吧？a中，“not normally found in the organ in which the tumor appears”只修饰了bone，而原义应该是修饰tooth and bone。
-------
请指正

kittyinuk

谢谢bluehero_3 ^0^ 你说的很对,我会好好看OG的,很多人都说OG比其它辅导书都有用.
不过我问的那道题是新东方语法分册的题,答案是E.
Liushiyou , 我觉得你说的有道理, 我同意