题目内容

4. Before Sam can repair his bicycle,he must know why it does not work. For example,he must        the parts that are wrong.

   A. check   B. determine   C. correct   D. recover

4. B句意为："在萨姆能修好他的自行车之前，他必须知道为什么自行车坏了。例如，他必须确定出了故障的部件。"determine意为"确定，测定"；check意为"检查，核对"。

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4.        his lesson,he didn't notice his mother coming in. (concentrate)

全神贯注于他的功课，他丝毫没有发现他的妈妈进来了。

5. I didn't see Mary at yesterday's party. If she had come,she         . (time)

我没在昨天的晚会上看到Mary。她要是来了，会玩得很开心的。

2. Is this the reason        for his carelessness in his work? (explain)

这就是他在会上为他工作中的粗心所解释的原因？

9. The new dictionary is of great value to our English study,although its price is         as that of the old one. (high)

虽然这本新词典的价格大约是那本旧词典的三倍，但它对我们的英语学习很有用。

9. We can save endangered species only if we save their habitats and        the reasons people kill them.

   A. put up   B. put off   C. put an end to   D. put to use

6. The police        the murderer everywhere when he suddenly appeared in the theatre (search)

当警察正四处寻找杀人犯时，他却突然出现在剧院中。

3. I've been working for over twenty years and seldom        as now. (tired)

我已经工作二十多年了，很少感觉像现在这样累过。

4. It's no use        his behavior without showing him a good example. (scold)

责备孩子的行为而不给他树立好的榜样是没用的。

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