一、请仔细观察下列句子中的现在分词的使用
1. "None of us do," said Dr. Dorian, sighing. "
2. He said, looking down at his daughter with love.
3. "How's Avery?" he asked, opening his eyes wide.
4. "What are your names, please?" asked Wilbur, trembling with joy.
5. Mrs Black sat down, breathing heavily．
6. He slept the first night in a field，feeling lonely, tired, cold and hungry.
7. Seeing the helicopter, Jane waved her yellow blouse, screaming for help.
