1 . I admire Edison a lot because of his great__________(贡献)to the world. (根据汉语提示单词拼写)

2 . Mankind should make full use of limited ________ (资源). （根据汉语提示单词拼写）

3 . This produced a chain ________(反应), which made it possible for life to develop. （根据汉语提示单词拼写）

4 . She had trouble keeping her ______________ (平衡). (根据汉语提示单词拼写)

5 . It is a great ________(荣誉) for me to give a welcoming speech here. （根据汉语提示单词拼写）

6 . The diaries contain detailed______(描述) of the writer’ s experiences in China. (根据汉语提示单词拼写)

7 . We should never give up in the face of ______ (失败).(根据汉语提示单词拼写)

8 . Now she is planning a practical ________ (日程表) for our trip to Xinjiang. （根据汉语提示单词拼写）

9 . A lot of money was spent on the ________ (设备) of the new hospital. （根据汉语提示单词拼写）

10 . We always have dumplings during this time, as they mean something special during this _________ (时刻). （根据汉语提示单词拼写）