英语听力

Unit One Making a difference Listening
Who were the famous scientist described on the tape?
1.This one is one of the greatest scientist of all times.
Even her name tells you that she likes science.
A good scientist should want to find out answers and ask many questions.
In other words,they should be curious.
This woman was certainly curious.
Together with her husband she tried to learn the secrets of radio activity.
The couple were award the Nobel Prize for physics in 1903.
Eight years later,she received the second Nobel Prize,this time for chemistry.
2.It is said this English Gentleman was sitting in his garden one day,
when suddenly he was hit by a falling apple.
The story is probably not true,but this man did mention,
that he got one of his best-known ideas
while watching apples fall from a tree.
His name makes you think that he was not too interested in all things.
He discovered the force of gravity.
and he drew up the system of how objects move.
His laws for motion 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 Modern Rice.
But because of his long friendship with all the farmers in China,
he would rather be known as 'the Farmer'.
听力理解

Work book Unit one Listening
Many animals and plants have developed ways to solve problems that are similar to the ones we humans have to deal with.
Part One
Scientists often look at nature in order to find new ideas.
In ancient times,Chinese scientists studied how spiders made silk.
Modern scientists are interested in the spider too.
The spider can make silk that is much stronger than most man-made materials.
Spider silk doesn't 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.
Part Two
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 take a closer look at the white lotus,
a flower that is know for it's cleaning leaves.
At first,the scientists believe that the very flat leaf
would be better with stain clean.
However,when they looked closely at the white lotus,
the scientists saw that the leaf was in fact covered with tiny hairs and needles.
The needles and hairs collect the dust that falls on the leaf.
So that a rain drop can easily wash it out.
The German scientists use this technic to design a new kind of paint.
The new paint could keep out as looking clean for years.
Scientists also believe
that the butterfly could teach us a way to keep our computers cool.
A computer must be kept cool to function well.
The fans we use today are not always good enough.
The butterfly is cold-blooded and must change its body temperature all the time.
Scientists have found that there are small parts on the two wings
of the butterfly uses to change its temperature.
If scientists can learn how it has done,
it maybe possible to use the same method to keep computers from becoming too hot.
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