Lesson 30: Science Affects Us
第30课 科学影响我们
Hi Wang Mei
你好，王梅
How are you? Everyone here is fine.
你好吗？我们大家都很好。
Do you want to surprise your friends?
你想给朋友们一个惊喜吗？
Brian, Danny and I did an experiment in science class this week.
上周科学课上，布莱恩，丹尼和我做了个实验。
I suggest you try it, too!
我建议你也试一试。
First, get a jar full of water and a piece of cardboard.
首先，取一个装满水的瓶子，和一张硬纸板。
Cover the jar with the cardboard and turn the jar over.
纸板盖住瓶口，然后将瓶子倒过来。
Next, take your hand off. Can you guess what happens?
用接下来，把手拿开。你能猜到发生了什么吗？
The cardboard holds the water in the jar!
纸板托住了瓶中的水。
The air pressure pushing up on the cardboard is higher than that of the water pushing down from inside the jar.
大气对纸板的压力大于瓶中水对纸板向下的压力。
The higher air pressure outside the jar holds the cardboard in place.
瓶子外面更高的大气压恰好托住纸板。
Science is interesting. Don't you think so?
科学很有趣。你觉得呢？
Jenny
珍妮
Dear Jenny
亲爱的珍妮
I'm very well. Thanks! The experiment you did sounds interesting.
我非常好，谢谢！你做的这个实验听起来很有趣。
Yes, science is interesting, and it affects our everyday lives.
是的，科学很有意思。而且它影响着我们的日常生活。
Our lives would surely be very different without scientific developments.
没有科学的发展，我们的生活肯定会截然不同。
I always wonder what life would be like without computers or mobile phones.
我常常想，没有电脑和移动电话的生活将会怎样。
Scientific discoveries are making our lives better and better.
科学发明正让我们的生活变得越来越好。
This week we had some science lessons, too. I enjoyed learning about DNA.
这周我们也有几节科学课。我喜欢学习DNA知识。
It's really one of the most amazing things on the earth!
它真的是地球上最令人惊奇的事情之一。
Scientists are doing so many new things with DNA.
科学家们正在做有关DNA的新实验。
I think it will change the world. It will be interesting to see what happens.
我想它将会改变世界。看看将会发生什么，这一定很有趣。
Wang Mei
王梅
