时而……What can we do for them in return for all the help they have given us?
我们能做些什么来报答他们所给予我们的种种帮助呢?
答案：①I bought him a drink in return for his help.
②I wish I could do something for you in return.
重点句型
13. Frederick William Ⅰ, the King of Prussia, could never have imagined that his greatest gift to the Russian people would have such an amazing history.
普鲁士国王威廉一世绝不可能想到他送给俄罗斯人民的厚礼会有这样一段令人惊讶的历史。
“couldn’t have done”意为“不可能做了某事”，表示对过去已发生的事情的比较有把握的否定猜测。
could/can have done结构的用法：
①用于疑问句中，表示一种猜测，意为“可能做过……吗？”
②用于肯定句中，表示与过去事实相反的假设，意为“本来能够去做却没有做”。
Mr Smith can’t have gone to Beijing, for I saw him just now.
史密斯先生不可能去北京了，我刚才还见过他。
There is no light in the room, can they have gone out?
屋里没亮灯，他们有可能出去了吗？
—I stayed at a hotel while in New York.
在纽约时我住在一家旅馆里。
—Oh, did you? You could have stayed with Babara.
是吗？你本来能够和巴巴拉住在一起的。
高手过招
单项填空
①His brother met him at the Grand Theatre yesterday afternoon, so he have attended your lecture. （2009·12·山西太原五中模拟测试）
A. couldn’t B. needn’t
C. mustn’t D. shouldn’t
②—Your mother was really anxious about you.
—I know. I home without a word.
（2009·11·陕西西安检测）
A. mustn’t leave B. shouldn’t have left
C. couldn’t have left D. needn’t leave
解析： ①选A。由“His brother met him at the Grand Theatre yesterday afternoon”可知，当时他不在课堂上，不可能听了你的课。couldn’t have done意为“（过去）肯定没做”，符合句意。
②选B。由“Your mother was really anxious about you”和“I know”可知，“我”是在为自己未打招呼离家而自责。shouldn’t have done意为“本不应该做某事”，符合句意。
14. He/She only cares about whether the eyewitness has given true information, which must be facts rather than opinions.
他/她关心的只是目击者是否提供了真实的信息，这些信息必须是事实而不是个人的观点或看法。
rather than意为“而不是”，连接两个并列成分，这两个并列成分的形式应该一致。rather than连接两个主语时，其后面谓语动词的单复数形式取决于rather than前面主语的单复数形式。同类词汇、短语还有：as well as，together with，except，but，like，with，besides，including等。
联想拓展
or rather更确切地说
other than 除了……之外
would rather do sth. than do sth.
=prefer doing ...to doing/prefer to do rather than do
宁愿做……，而不愿做……
would do sth. rather than do sth.
宁愿做……而不愿做……
would rather (not) do sth. 宁愿（不）……
I think Tom, rather than you, is to blame.
我认为该受责备的是汤姆，而不是你。
Professor Smith, together with his assistants, is doing the research day and night.
史密斯教授和他的助手们正在夜以继日地进行研究。
高手过招
选词填空（rather than/other than/or rather） （原创）
①I met him very late on Friday night, , early on Saturday morning.
②Does anybody yourself know this?
③I decided to send an e-mail telephone.
答案：①or rather ②other than
③rather than
TAG:高一英语