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素能提升演练（十七）
必修3 Unit 5
Ⅰ. 单词拼写
1. This ticket is no longer ________ (有效的) and you have to buy a new one.
2. John gave us a detailed ________ (解释，说明) of his plan.
3. Your bike is ________ (相似的) to mine in color.
4. In the lab we ________ (观察) our teacher do the experiment.
5. I tried to remember his name. But his name ________ (被遗忘) me at the moment.
6. That was ________ (只是) a guess of mine.
7. His speech __________ (强调) the need for educational reform.
8. He referred to the dictionary to see the ________ (确切的) meaning of the word.
9. ________ (熟练的) workers are in great need in cities.
10. Hot weather ________ (繁衍，生殖) the bacteria in the food rapidly.
Ⅱ．单项填空
1. Bob looked back only to find an old classmate whose name ________ him for the moment.
A. escaped B. missed C. forgot D. passed
