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课时提升作业(八)
必修3 Unit 2
Ⅰ. 单项填空
1. —What is the price of petrol these days?
—Oh, it ______ sharply since last month.
A. is raised B. has risen
C. has arisen D. is increased
2. (2013·天津模拟)The increase in home computers means that families have much easier ______ to information.
A. measure B. access C. way D. method
3. Leaves are found on all kinds of trees, but they differ greatly ______ size and
