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