13 Where does the wind come from?13风从哪里来 Flags flutter, sailboats sail, forests roar, and waves swell, all of which are the function of the wind.彩旗飘扬,帆船疾驶,林涛怒吼，波浪汹涌,这些都是风的作用。 When it is happy, leisurely strolling, lightly shaking the willow branches; when angry, running wildly and dancing, pulling down trees and houses.它高兴时,悠闲漫步,轻摇柳枝;发怒时,狂奔乱舞,拔树倒屋。 So, where does the wind come from? Let's prepare materials to study!那么,风是从里来的?我们准备材料来研究吧！ Large Coke bottle, knife, matches, rags, strips of paper, mosquito coils, candles, etc.大可乐瓶、小刀、火柴、抹布、纸条,蚊香、蜡烛等。 Where does the wind come from?风从哪儿来? What I know我的认识 How is wind formed in nature?自然界中的风是怎样形成的? Take a guess.猜一猜。 I think it has to do with the temperature.我认为与气温有关。 My guess我猜想 Design an experiment to test our conjecture.设计实验,验证我们的猜想。 How do we test it?怎样验证呢? We think that the wind in nature is formed in this way我们认为自然界中的风是这样形成的 You solve my problem. 我的问题你解决。 What is the "land and sea wind"?海陆风”是怎么回事 I know ......我知道…… Are there winds in the upper atmosphere of the Earth? How have people studied it?地球的高层大气中有没有风?人们是怎样研究的? |
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