高中英语外研版 (2019)选择性必修 第二册Unit 5 A delicate world随堂练习题

Nature, to be commanded, must be obeyed.

—Francis Bacon

欲驾驭自然必先顺之。

——弗朗西斯·培根

We won't have a society if we destroy the environment.

—Margaret Mead

如果我们毁坏了环境，社会也就不复存在。

——玛格丽特·米德

Only to obey nature in order to overcome nature.

—Charles Darwin

要征服自然只能遵从自然。

——查尔斯·达尔文

It is usually their own surroundings as a form of free merchandise, I do not know any way to cherish and spoil.

—Gan Harman

我们常把环境看作免费商品而不知珍惜。

——甘哈曼

Care for our earth，imminently！Not only for ourselves，but for our further generations.As senior high school students，there are lots of things we can do to stop damaging our environment.If all of us joined together and put efforts into environment protection，it would not be a dream for us to have blue days，clean water and a peaceful world.

The Pacific island nation of Nauru used to be a beautiful place.Now it is an ecological disaster area.The first European to arrive was John Fearn in 1798.Nauru's real troubles began in 1899 when a British mining company discovered phosphate (磷酸盐) on the island.In fact, it found that the island of Nauru was nearly all phosphate.The company began mining the phosphate.

A phosphate mine is not a hole in the ground, it is a strip mine.When a company strip­mines, it removes the top layer of soil.Then it takes away the material it wants.Strip mining totally destroys the land.Gradually, the lovely island of Nauru started to look like the moon.

Unfortunately, the leaders invested the money unwisely and lost millions of dollars.In addition, they used millions more dollars for personal expenses.Soon people realized that they had a terrible problem—their phosphate was running out.Ninety percent of their island was destroyed and they had nothing.By 2000, Nauru was financially ruined.Experts say that it would take approximately $433，600，000 and more than 20 years to repair the island.This will probably never happen.

[探索发现]

1．Find out what was Nauru like before the Europeans came.

Beautiful.

2．Find out what caused the ecological disaster in Nauru.

Overmining.

3．Find out the cause of Nauru's financial problem.

Its leaders misused the money.