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2.在研究垂直问题时,要善于应用“转化”和“降维”的思想,通过线线、线面、面面平行与垂直关系的转化,从而使得问题获得解决

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1.掌握平面与平面垂直的概念和判定定理性质定理,并能运用它们进行推理论证和解决有关问题。

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假如你是李明,你从电视中看到曝光虚假广告的新闻后,和班里的同学组织了一场讨论。主题是:广告的利与弊。请根据下面提供的信息,给某英文报社的编辑写一封信,介绍你们的讨论结果,并谈一谈你的看法。

利
弊
你的看法
1.提供商品、服务、文化等信息;
2.为顾客节约购物时间;
3.为生产商找市场。
 
1.浪费人们的时间;
2.虚假广告误导消费者;
3.消费者要支付广告费用。
 
……(至少一点)

注意:1. 可适当增加细节,以使行文连贯;

    2. 词数:120左右。开头语已为你写好(不计入总词数);

    3. 参考词汇:生产商manufacturer  n.   误导mislead  v.

Dear editor,

Recently our class have held a discussion about the advantages and disadvantages of advertisements.

__________________________________________________________________________________________________________________________________________________________

                                  Yours,

                                   Li Ming

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5. Few people were ___________ (营救) in the plane crash.

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4. How many people are ____________ (卷入) in the trouble?

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3. Please come here whenever it is ___________ (方便的) to you.

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2. There were only two rooms for three of us , so Sam and I would s___________ one room.

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1. What i___________ me most was my first chemistry lesson by Mr White. It was very vivid and lively.

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5. The two bottles stood ___________ on the table.

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4. It is necessary for all of us to ___________ the potential traffic dangers.

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