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二年级高中英语听力mp3下载人教版
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1 This woman iotion are still used in physics today, at least in schools and universities.
3 Food is what sets this great mind on fire. Rice, to be exact. This great mind has spent most of his life looking for ways to help farmers grow more rice so that all of us will have enough food to eat. He is known as the father of modem rice, but because of his long friendship with all the farmers in China, he would rather be known as “the farmer”.
Listening Texts to Unit One (Workbook)
Part 1
Scientists often look at nature in order to find new ideas. In ancient times, Chinese scientists studied how spiders make silk. Modem scientists are interested in the spider, too. A spider can make silk that is much stronger than most manmade materials. A spiders silk doesnt break easily. Instead of breaking, it gets longer. Best of all, the spider produces the silk without the use of dangerous or poisonous chemicals. If we could learn to use the technique, we might be able to use the strong silk to make things like seat belts and wires that hold up bridges.
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Part 2
There are many other examples of how new technology has been developed by learning from nature. A group of German scientists wanted to find out why leaves and flowers are able to stay so clean. They decided to t