题目内容
4．There were about 500peopleparticipating（参加）in the discussion the other day．分析 大约有500人参加了前几天的讨论．
解答 答案：participating
解析：分析句子结构可知，横线前面是一个完整的There be句型；故根据句意可知横线及其后的部分作定语，因为"人"与"参加"之间是主谓关系，故可以直接使用动词（短语）的现在分词形式来作后置定语．综上，本题答案为：participating．拓展：完整的定语从句是：who participated in the discussion the other day．
点评 本题考查动词辨析．做此类题目时一定要熟悉动词的含义并结合用法与其在句中的成分来填出正确的答案．
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1．信的开头和结尾已为你写好．
2．词数不少于60．
提示词：研究性学习：inquiring learning 金丝猴：golden monkeys
Dear Peter，
How have you been recently？I'm writing to tell you something about our inquiring learning on the rare animal-golden monlkeys．
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Best wishes，
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1．信的开头和结尾已为你写好．
2．词数不少于60．
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How have you been recently？I'm writing to tell you something about our inquiring learning on the rare animal-golden monlkeys．
The students of our class were divided into two groups．
What do you think of our inquiring learning？Looking forward to your reply．
Best wishes，
Li Hua．