Q
1. Quality 品质；质量
(1) The food is of the highest quality. 这句话的意思是这种食品品质最优。
【答案】正确答案：of high quality
(2) He is a man of high quality. A. of high quality B. quality C. of quantity D. quantity
【答案】选择A，这句话的意思是：他是一个素质高的人。of high quality作为后置定语修饰a man。
2. Quantity 数量
(1) If you buy it in quantity, it's a lot cheaper. 这句话表示如果你大量购买，价格会更便宜。
【答案】正确答案：in quantity
(2) Large quantities of information have been offered since the organization was built. C. have been offered
【答案】正确解析：由于出现了since从句，句子应用现在完成时，且quantities of作主语时，动词用复数形式，因此答案为C。
(3) —Why does the lake smell terrible? —Because large quantities of water have polluted it.
【答案】正确答案：D have been polluted
3. Quit 辞职；放弃
(1) I wish you would all quit complaining. 这句话意思是希望你们能停止抱怨。
【答案】正确答案：complaining
(2) Doctors are doing research to find out what happens physically when people quit smoking. 这句话意思是当人们时，医生正在研究身体上会发生什么变化。
(3) After quarreling with the manager, he decided to quit the position. 这句话意思是跟经理吵架后，他决定辞掉这个职位。
4. 祈使句＋or＋陈述句
(1) Hurry up, or you'll be late for class.
(2) B: Make one more effort, and you'll succeed. C: You'll succeed by making one more effort.
(3) With a talk with the student, I believe, you will find Tom is very outgoing.
5. 强调句型
(1) It was I that/who met him in the street yesterday.（强调主语）昨天是我碰见了他。
(2) Was it in that park that you met him? 你就是在那个公园里遇见他的吗？
(3) It was not until he came back from Africa that year that he met the girl he would like to marry. 直到那年他从非洲回来，他才遇到了他想要娶的女孩。
(4) What did he want to know, Anne? —You could finish writing the report.</ 这里使用了强调句型，强调了知道的内容。强调句型的正确使用可以使句子更加精炼有力。
6. 情态动词＋have done
(1) It must have rained last night, didn't it? 昨晚肯定下雨了，不是吗？
(2) You should have finished your homework yesterday. 你昨天就应该完成作业。
(3) Anybody could have done it, but nobody did it. 任何人都可以完成这项工作，但就是没人去做。
(4) You shouldn't have talked back to our teacher like that. It was awfully impolite. 你当时一定是疯了。must have done表示对过去发生的事情的肯定推测。
(5) We didn't study last night, but we went to appreciate the flowerbeds and streetlights in Tian'anmen Square instead. 我们本来打算昨晚学习的，但是去门广场欣赏花坛和路灯了。