高中英语 Unit 21《Human Biology》总复习课件北师大版选修7_高考复习指南

高中英语 Unit 21《Human Biology》总复习课件北师大版选修7

　　B．bury C．treat

　　D．help 解析：　句意为：我们劝那些劫持者向警察投案。B项表示“专心于……”；C项表示“招待”；D项表示“随便取用”。A项表示“屈服，投降”，只有A项符合句意要求。答案：　A in vain徒然，白费力气回归课本P34：Floyd Landis made several lame excuses blaming medicine he had been taking for an injury but these were all in vain. 弗洛伊德·兰蒂斯做了几次站不住脚的辩解，责怪他因伤服用的药物，但是这些都是徒劳的。 ①We tried in vain to make him change his mind. 我们想使他改变主意，结果是白费心机。 ②We tried vainly to persuade her not to go. 我们劝她别去，她不听。 ③He was vain about his looks，spending hours in the gym. 他对自己的外表很自负，在健身房里一呆就是几个小时。 9.(2009·湖北卷)His efforts to raise money for his program were________because no one showed any intention to take a cent out of their pockets. A．in place

　　B．in sight C．in effect

　　D．in vain 解析：　考查介词短语辨析。句意为：谁也不愿意从自己的口袋里掏一分钱，看来他为他的项目筹钱的努力是白费力气。D项“徒劳的，无用的”符合句意。A项“在对的位置”；B项“被看到，在视线之内”；C项“有效，实际上”。答案：　D at random随便地，随意地回归课本P34：It is compulsory for winners to be tested but other participants are only tested at random. 获胜者要强制性地进行检查，而其他参与者只是随意地检查。 Unit 21　Human Biology　人类生物学真题回放佳作展示 (2009·湖南卷) 假设你是某中学新老师李红，请给你的朋友张华写一封信，告诉他你第一天上课的情况，主要内容如下： 1．描述一件课堂上令你印象深刻的事情； 2．介绍你处理该事的方式； 3．谈谈你的感想。 Dear Zhanghua， Long time no see！I miss you very much.Now I am so excited that I can’t wait to share with you an unforgettable experience.I gave my first lesson today，which left me a deep impression. Seeing a young teacher enter the classroom，my students began to make more noise.I stood on the platform，feeling embarrassed and not knowing what to do. 真题回放佳作展示