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老师讲解非常仔细，课堂风格独特，轻松诙谐的感觉，是我在学校很少见的，很喜欢老师的课堂哦⊙∀⊙！
老师讲解清晰，听完课程后，解题思路，一目了然，很满意非常好对我帮助非常大
老师讲解的很细致，内容体系完善，逻辑结构清晰，容易理解，原来不懂的地方一下子变得简单多了
老师的课很幽默，也很有趣，我即收获了前所未有的知识，也收获了乐观向上的精神，加油，我会变的更好
老师会授予我们方法，每讲一个知识点都会总结某个知识点，在这里听课完全不乏味
很好，让我学到很多东西，比老师上课讲的都细，旁边还有小提示，棒棒哒！
Have you ever planted a few trees on Tree-planting Day? Every year, millions of people, both young and old, 31 a lot of trees. But this may not be the best way to make our home a 32 place.
Las t week we visited a park in Hebei province. We were 33 to find most of the trees had been burned. The workers told us that the trees 34 soon after they were planted because they weren’t watered well enough. 35 the workers burned them and cleaned the place for
36 trees to be planted this year. 37 a card found in one of the dead trees, a student wrote, “I hope this tree will grow up with me to 38 the backbone (栋梁) of our country.” The workers said that the survival of the trees was really more important than 39 trees were planted.
Some people in Beijing now have a new idea that they can donate some money and let professionals (专业人士) plant and 40 the trees.
31. A. water B. plant C. look for D. burn
32. A. smaller B. warmer C. greener D. larger
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