0  267949  267957  267963  267967  267973  267975  267979  267985  267987  267993  267999  268003  268005  268009  268015  268017  268023  268027  268029  268033  268035  268039  268041  268043  268044  268045  268047  268048  268049  268051  268053  268057  268059  268063  268065  268069  268075  268077  268083  268087  268089  268093  268099  268105  268107  268113  268117  268119  268125  268129  268135  268143  447090 

15.一列简谐波沿轴正方向传播,在某一时刻波形图如图所示,已知点振动周期为,由此可以判断出:

 

A.点此时刻振动方向沿轴负向 

 B.离坐标原点为点先沿轴负方向运动

C.该波波速为       

 D.当点达到波峰时,点达到波峰

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14.下面说法正确的是:

A.阳光下的肥皂泡上呈现彩色条纹,这是光的干涉现象

B.雨后天空中的彩虹属于光的干涉现象

C.将红光换为绿光做双缝干涉实验,干涉条纹会变窄

D.夏天太阳光透过浓密的树叶在地面上形成的圆形光斑是光的衍射现象

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第二节 写作(满分30分)

2010年上海世博会即将开幕,作为一名中学生志愿者,你感觉身边还存在许多不文明行为。请你写一篇120-150词左右的短文,简要描述图片内容并谈谈自己的感想。

短文必须包括以下要点:

1. 召开世博会的意义;

2. 列举身边不文明行为一至两例;

3. 你的建议。

参考词汇:2010年上海世博会-Expo 2010 Shanghai China

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山东省四县市(诸城、安丘、兰山、五莲)会商2010届高考模拟

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