but, however, while, although和though用法小结【观察】阅读下列句子,注意各句中黑体单词的用法。1. We have made some achievements,butwe should be modest.2. He promised to help me.However, he is busy and hasnt come.3. She felt ill. She went to work,however, and tried to concentrate.4. He said that it was so; he was mistaken,however.5. You like sports,whileId rather read.6.WhileI understand what you say, I cant agree with you.7.Although / Thoughit was late, she went on working.8. Tiredthoughhe was, he went o