英语周报高三第20答案

【写作指导】审类型:拉荐囵时态:一般现在时写作思路Pan』略写):说明写信目的及要推荐的电视节目,如《航拍中国》等。篇Pan2(评写):阐述推荐理由,可以从电视节目的内容、特色、受欢迎程度等方面入手Pan3略写):表达美好祝愿,如期待自己的推荐对对方有帮助、希望对方将来能亲自来中国感受风土人情等。卷八·答案—54【佳作展台】Dear PeterKnowing that you re eager to know more aboutChina via TV programs(現在分词短语作状语,其中that引导宾语从句), I'm writing to recommend AerialChina to youThis program presents China from a bird's-eyeview and has been highly thought of the by theaudience since it was first broadcast. Not only does itcover the representative and beautiful landscapes ofdifferent regions in the country, but it also displaysChinas history, culture, society and economy( not onlybut also.结构 倒装). I'm convinced that itgive you new insights into China.Hope my recommendation will be of help and thatyou can come and visit China one day!YoursLi Hua

4.B【解析】若ab≥1,则2 2≥222=2V2≥2√2)222=4,(关键:想到要使用两次基本不等式)必要性成立;当a=4,b=0时,2 2≥4成立,但是ab即ab≥1不成立,充分性不成立,(点2拔:判斷充分条件与必要条件需从充分性、必要性两个方面分别进行推理论证,缺一不可)故选B.

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