[求助]even though在句中时前面要逗号和主句隔开吗

rpch2004

大全980

 The Immigration Service now has the discretionary power to keep families united even though
                    all their members do not meet the five-year residency requirement.

(A) all their members do not meet the five-year residency requirement

(B) not all their members meet the five-year residency requirement

(C) all their members have not met the requirement for a five-year residency

(D) not all their members have resided for five years, a requirement（B）

(E) all their members have not resided for five years, as required

我想问的和选项无关

even though引导让步状语从句在句中时，从句和主句要用逗号隔开吗？这个题目中没有隔开

是否even though前加逗号和不加逗号都可以？还有although在句中哩，although前一定要逗号吧？

谢谢！！！

lonelyorchid

感觉可加可不加，尤其是从句在后时，从句在前好像一定要加的，因为主句没有引导词，如果不加逗号容易造成结构混乱的说

rpch2004

那although放在句中时,加不加也一样吗?

rpch2004

even though在句中时好象是可加可不加，最近又碰到过几题了

aeoluseros

1. although较正式，语气强
Although he was tired, he went on working.

2. although引导的从句放在主句前后均可，有时还可放在句中。
Although many difficulties are still ahead, we are determined to make greater achievements. 尽管在前面的道路上还有许多困难，但是，我们决心要取得更大的成就。
He often helps me with my English although he is quite busy. 尽管他相当忙，但是还常常帮我学英语。

3. although引导的从句不能与but, however连用，但可与yet, still连用。不能说：Although he was old, but he worked hard. 应把but去掉。当然，保留but而去Although也可。


注意:although 的几不:

although不能指假设的情况
although不能作并列连词
although不能作副词，放在词尾

rpch2004

以下是引用aeoluseros在2008-10-21 12:16:00的发言：
1. although较正式，语气强
Although he was tired, he went on working.

2. although引导的从句放在主句前后均可，有时还可放在句中。
Although many difficulties are still ahead, we are determined to make greater achievements. 尽管在前面的道路上还有许多困难，但是，我们决心要取得更大的成就。
He often helps me with my English although he is quite busy. 尽管他相当忙，但是还常常帮我学英语。

3. although引导的从句不能与but, however连用，但可与yet, still连用。不能说：Although he was old, but he worked hard. 应把but去掉。当然，保留but而去Although也可。


注意:although 的几不:

although不能指假设的情况
although不能作并列连词
although不能作副词，放在词尾

谢！