在一个雷雨交加的夜晚，小爽正在家里窗台下做作业，但他打开窗户向外望去…请你设想一下

（1）他可能会看到什么？听到什么？还有一个什么疑问？（提出一个与物理有关问题不用回答）

（2）小爽记得光在真空中的速度是C=3.0×10⁸m/s，声音在空气中的传播速度是V=340m/s，于是，他想探测打雷处距离他有多远？他动了动脑筋，用自己的电子手表测出了看到闪电后经过t=2s钟便听到雷声的时间，而后算了算，结果就出来了．请你粗略地将他的计算过程及结果写出来．

    When 4-year-old British royal family member Prince George started his first day of school in September, Chinese language was on his curriculum（课程）.

    And he wasn't alone. According to a report published by the British Council in September, about 51% of UK parents want their children to learn Chinese, as it's believed to be one of the most useful languages to know.

    In fact, the UK isn't the only country showing a growing interest in Chinese. In the USA, the language has become the second most spoken foreign language this year, after only Spanish, with over 2.million speakers, according to a survey by a US financial news website.

    So far, 67 countries and regions have included Chinese in their national curriculum, reported the China news website.

【写作内容】

⒈用约30个单词写出上文概要；

⒉用约120个单词发表你的观点，内容包括：

⑴简要分析“汉语热”的原因（2-3点）

⑵谈谈作为一名中学生，你应当怎样做才能更好地迎接“汉语热”。

等腰三角形一腰上的高与另一腰的夹角为60°，则顶角的度数为（　　）