og37，好像没人提过，可我有问题：（

15.   While some academicians believe that business ethics should be integrated into every business course, others say that students will take ethics seriously only if it would be taught as a separately required course.

(A) only if it would be taught as a separately required course

(B) only if it is taught as a separate, required course

(C) if it is taught only as a course required separately

(D) if it was taught only as a separate and required course

(E) if it would only be taught as a required course, separately

为什么B选项不用separate和required之间不用加and呢？不是并列的意思吗？

谢谢！

TOEFL语法：

几个形容词排成一列，依次修饰同一个名词，形容词间有明确的先后顺序，形容词间并不并列。

几个形容词由逗号连接，同时修饰同一个名词，形容词间无明确的先后顺序，形容词间并列。

即逗号可以并列连接形容词。

同意les

基本上required 和seperate 在比例上並非對等的，也就是說required 可能是30%，但seperate 則可能是70%

不見得兩者是一半一半，就不必是加上 and

我还有疑问，为啥separately required 改变了原居的意思？原句要表达的是啥意思啊？谢谢！

副词和形容词的修饰重心是不同的。

seperate course, 形容词修饰名词，意思是单独的课程。

seperately required，副词修饰形容词，意思是单独要求的...

http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=3294

15个月前有人问过了。

15个月后，高手频出~

LES 的解释恍然大悟！！

(A) only if it would be taught as a separately required course

(B) only if it is taught as a separate, required course

(C) if it is taught only as a course required separately