读我国两大地理区域简图及某地传统民居图，完成下列问题。

阅读下文，回答相关问题。

         ①100多年前，奥地利人马克斯·舒施尼发明了塑料袋。这种包装物既轻便又结实，在当时无异于一场科技革命。可舒施尼做梦也没有想到，到塑料袋百岁“诞辰”纪念日时，它竟然被评为20世纪人类“最糟糕的发明”。  
         ②塑料袋“糟糕”，是因为它大多是用不可降解和再生的材料生产的，处理这些白色垃圾很多时候都只能挖土填埋或高温焚烧。据科学家测试，塑料袋埋在地里需要200年以上才能腐烂，并且严重污染土壤；而焚烧所产生的有害烟尘和有毒气体，同样会造成对大气环境的污染。 
         ③一时间，“远离塑料袋”“拒用塑料袋”“禁用塑料袋”的呼声一浪高过一浪。然而环保意识不是一夜之间就能树立的，一方面，塑料袋像臭豆腐一样闻起来“臭”、吃起来“香”，因为它的确有它的便利之处；另一方面，许多消费者认为，塑料袋是免费赠送的，不花钱的东西不用白不用。
        ④针对这种情况，美国近半数州实施了《塑料袋禁用法》，意大利则实行《塑料袋课税法》。这些法律的推行，起到了很好的效果。                                   （文章有改动）

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    Note-taking is a skill that can help you do well in all your schoolwork. It can make you confident when you are studying. But unluckily, most students don't know how to take notes.

★Write down key facts.

    If your teacher writes notes on the blackboard, that's great. You can copy them or write down the most important facts of all in class. Different teachers do things differently. For example, some teachers may focus on (关注) lots of dates and facts in class, but they only write the important ones on the blackboard. Other teachers may not write anything down, but they may say something important again and again.

★Ask.

    Don't be afraid to ask your teacher to repeat (重复说) what you miss. If your teacher speaks too fast and you can't follow what he is saying, you can ask him after class.

★Compare.

    Comparing your notes with your classmates' can be good for your learning. It can also help you and your classmates correct (纠正) some mistakes.

★Organize.

    Note-taking also needs organization. Keep notes for each subject in one notebook, so that you can find everything easily when a test comes.

★Good note-taking takes time.

    If you decide to recopy your notes every evening, you'll surely have less time to watch TV. But you'll save time in the coming test.

读课文《背影》，对下列句子理解不恰当的一项是（    ）。