32 by the year 2000 到2000年为止

33 be shaped like 被塑造成...形状

二、翻译句子

1 In the future, care for the environment will become very important as earth's natural resources run out. 未来，由于地球的自然资源用光了，对环境的关注将会变得更重要。

2 We will use lots of recycled materials, such as plastic, aluminum, steel, glass, wood and paper, and we will waste fewer natural resources.

我们将使用很多循环材料，例如，塑料，铝，钢，玻璃，木材和纸，我们将减少对自然资源的浪费。

3 We will also have to rely more on alternative energy, such as solar and wind power.

我们将不得不更多地依赖可替代能源，如太阳能、风能。

4 A teacher at a university in Texas in the United States asked his students to think how they would run a city of 50,000 people in the year 2025.

一位美国德克萨斯的大学老师让学生思考他们将如何管理2025年一座拥有5万人的城市。

5 All cars will be powered by electricity, solar energy or wind, and it will be possible to change the color of cars at the flick of a switch.

所有的汽车将用电能、太阳能或风能驱动，并且只要轻按开关，汽车就能改变颜色。

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