1. 教学视频
https://www.bilibili.com/video/av69059698/
https://www.bilibili.com/video/av63536963/
https://www.bilibili.com/video/av63545012/
https://www.bilibili.com/video/av69059563/
2.课文相关情境
秒懂百科：一分钟了解雾
https://www.baidu.com/sf?pd=video_page&nid=4848204164461432788&sign=2733231468405386663&word=%E9%9B%BE&oword=%E9%9B%BE&title=%E4%B8%80%E5%88%86%E9%92%9F%E4%BA%86%E8%A7%A3%E9%9B%BE&atn=index&alr=1&openapi=1&resource_id=5052&frsrcid=4185&cambrian_id=1603123833821926&sp=0&ext=%7B%22src%22%3A%22http%3A%5C%2F%5C%2Fvdse.bdstatic.com%5C%2F%5C%2F44bc216b27259ad50eea213347e14915.mp4%3Fauthorization%3Dbce-auth-v1%252Ffb297a5cc0fb434c971b8fa103e8dd7b%252F2017-05-11T09%253A02%253A31Z%252F-1%252F%252F015a51029c0406c2b9f929d54528e233798b0dbb15cea27f4a3241b0759ba52e%22%2C%22loc%22%3A%22http%3A%5C%2F%5C%2Fxzh.aivideo.baidu.com%5C%2Fshortvideo%5C%2F2c557b991a8b29c0fad20389d189bdba4.html%22%2C%22log_loc%22%3A%22http%3A%5C%2F%5C%2Fxzh.aivideo.baidu.com%5C%2Fshortvideo%5C%2F2c557b991a8b29c0fad20389d189bdba4.html%22%2C%22duration%22%3A%2283%22%2C%22poster%22%3A%22http%253A%252F%252Ft12.baidu.com%252Fit%252Fu%253D920315975%252C1232335335%2526fm%253D171%2526app%253D20%2526f%253DJPEG%253Fw%253D640%2526h%253D360%2526s%253DEBC2DB1C03737C2B526154C10300C0BB%22%2C%22source%22%3A%22%5Cu79d2%5Cu61c2%5Cu767e%5Cu79d1%22%2C%22s%22%3A%224fc5a291ae508fd21bb2c993d2c599d2%22%2C%22isHttps%22%3A1%2C%22isCompilation%22%3Anull%2C%22jsy%22%3A1%7D&top=%7B%22sfhs%22%3A1%2C%22_hold%22%3A2%7D&fr=2
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