Teaching aim: Deal with the language points in the passage.
1. Although these are very important, we communicate with more than just spoken and written words. although 连词，尽管虽然 可用though 代替（不与but连用）
Although he was poor, he was quite generous to his needy friends.
________ he has limited technical knowledge, the old worker has a lot of experience.
A. Since B. Unless C. As D. Although
