WelcomeWelcomeback to my back to my

classclass

Unit OneUnit OneMaking a Making a

differencedifference

TASK 1

Warming-up

Let’s get to know the following scientist and their famous quotes.

Imagination is more important than

knowledge.

It takes a very unusual mind to undertake

analysis of the obvious.

Nothing in life is to be feared. It is only to be understood.

Genius is one percent inspiration and

ninety-nine percent perspiration.

You cannot teach a man

anything; you can only help

him find it within

himself.

Portraits of Chinese famous scientists

中国著名科学家画像

Do you know any famous scientists in China?

华罗庚竺可桢 李四光

钱学森

陈景

润

袁隆平

Famous people’s famous sayings

You have to believe in yourself. That’s the secret of success. 人必须相信自己，这是成功的秘诀。

—— Charles Chaplin 卓别林

I like the dreams of the future better than the his

tory of the past. 我不缅怀过去的历史，而致

力于未来的梦想。 —— T. Jefferson 杰弗逊

（美国第 3 任总统）

We are here to add what we can to life, not to get what we can from it. 我们要尽可能为生活增加一些东西，而不是从中

索取什么。 —— William Osler 奥斯勒

Anything one man can imagine, other men can make real.     但凡人能想象到的事物，必定有人能将

它实现。 —— Jules Verne 凡尔纳

Victory won’t come to me unless I go to it.     胜利是不会向我走来的，我必须自己走向胜利。

—— M. Moore 穆尔

Life is just a series of trying to make up your mind. 生活只是由一系列下决心的努力所构成。 —— T. Fuller 富勒

All for one, one for all. 人人为我，我为人人。

—— [ 法 ] Dumas pére 大仲马 A bird in the hand is worth two in the bush.

一鸟在手胜过两鸟在林。

—— Heywood 希伍德

Some other famous quotations from famous people

Time is money. 时间就是金钱。 —— Benjamin Franklin 富兰克林 Time and tide wait for no man. 时间不等人。

—— Scott 斯科特Work while you work; play while you play. T

his is the way to be cheerful and gay. 工作时工作，玩乐时玩乐。依此方法做，轻松与欢乐。

—— A. D. Stoddart 斯道达特

Early to bed and early to rise, makes a man healthy, wealthy, and wise. 早睡早起使人健康、富裕又聪明。

—— Benjamin Franklin 富兰克林

TASK 2

Listening

TASK 3

Speaking

Useful expressions—p.2

That’s correct.

It’s clear that…

I doubt…/ That’s true./ It’s hard to

say.

Well, maybe, but…/ There is no doubt that…

What’s your idea? /

Have you thoughtabout…?

Biologists

李时珍

谈家桢 Darwin

F. H. Crick

** I think biology is the most impor-tant and useful science because it is essential to protecting the ecological balance and environment. People can’t live with-out living things. Fur-thermore, biology goes hand in hand with our life. If there were no science of biology, there would not be medi-cine. In a word, biology is the most important and useful.

chemists

卢嘉锡

Scheele 舍勒

拉瓦锡

张青莲

** Well, maybe, but I think that chemistry is the most important and useful, because chemistry is the key to the progress of the human being. Besides, it is chemical reaction that produc

es many new things.

Physicists

钱学森

李政道

Einstein

Hawking

**It is hard to say. There are many physical products. And physics is widely used in many fields, such as medicine, industry and agriculture. Without physics, we could never go and explore outer space. So I think physics is the most important and useful science.

Mathematicians

华罗庚

苏步青

GaussArchimedes

**That’s true. But maths is the basic science. You can’t learn physics or chemistry well with-out a good knowledge of math. Maths is a tool in science and engineering. Therefore, maths is the most important and use-ful science. What’s your idea?

Computer scientists

** Well, there is no doubt that maths is an important and useful science. In my opinion, the most important and useful science should be computer science in our modern information society. The computer is now an indispensable ( 不可缺少的 ) tool in many fields. It can settle all kinds of problems at a high speed and can help people work easily. So I think computer science is the most important and useful science.

Homework1. Preview “Reading” and try

to understand it.

2. Language study—pp. 68-69

Thank you.

The End