——Now lots of teenagers spend a lot of time playing computer games. ——Yes. Teach
题型：不详难度：来源：
——Now lots of teenagers spend a lot of time playing computer games.
——Yes. Teachers and their parents should prevent them ______________ too much.| A．to play | B．play | C．plays | D．playing |
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答案
| D |
解析
试题分析：prevent sb. (from )doing sth.表示“阻止某人做某事”，这是一个固定用法。本句的意思是“老师和家长应该阻止他们玩的太多。”所以本题选D。
点评：对于prevent的用法，应该熟练掌握，其用法与stop和keep的用法一样，都表示“阻止某人做某事”。 |
举一反三
---What are you busy____these days?
----Nothig much |
They are both very nice.I don’t know ___| A．what to choose | B．to choose what | | C．which one to choose | D．to choose which one |
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The teacher told us ____the window in class| A．not to look out of | B．to not look out of | | C．not look out of | D．don’t look out of |
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I had some trouble ___my homework| A．to finish | B．finishing | C．finishes | D．finish |
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---I find the more we study, the more difficulty we have ________ out Maths problems.
---Oh, I agree with you. Maths is more and more difficult.| A．worked | B．work | C．works | D．working |
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