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课时提升作业(六)
Ⅰ. 单项填空
1. Computer lessons must be ______ to students of all grades, so that they can master this modern communication and learning tool.
A. avoidable B. accessible C. valuable D. acceptable
2. (2013·成都模拟)I find ______ hard to concentrate on my studies with some people having small talk around me.
A. them B. him C. that D. it
3. —How is Dennis getting along with his work?
—Well, he could always _____ new ideas for increasing sales.
A. come up with B. come about
C. get away from D. get up
4. (2013·泰安模拟)The magician picked some persons from the audience _______ and asked them to help him with the performance.
A. by accident B. in vain C. at random D. on average
5. It is said that some software on learning subjects for pupils ______ in a very practical way.
