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素能提升演练（二十九）
选修6 Unit 4
Ⅰ. 单词拼写
1. There are large __________ (数量) of rain in the area of the country every summer.
2. Scientists have many theories about how the universe first came into __________ (存在)．
3. A rainbow is a natural __________ (现象) especially after a heavy rain.
4. Such a mistake would perhaps lead to disastrous __________ (结果).
5. The __________ (平均数)of 4, 5 and 9 is 6.
6. Several cars are available within this price __________ (范围).
7. The personnel manager __________ (浏览) down the list of names of the applicants.
8. He tried to sound __________（漫不经心），but in fact he was worried.
