As cultural symbols go, the American car is quite young. The Model T Ford was built at the Piquette Plant in Michigan a century ago, with the first rolling off the assembly line(装配线) on September 27, 1908. Only eleven cars were produced the next month. But eventually Henry Ford would build fifteen million of them.
Modern America was born on the road, behind a wheel. The car shaped some of the most lasting aspects of American culture: the roadside diner, the billboard, the motel, even the hamburger. For most of the last century, the car represented what it meant to be American—going forward at high speed to find new worlds. The road novel, the road movie, these are the most typical American ideas, born of abundant petrol, cheap cars and a never-ending interstate highway system, the largest public works project in history.
In 1928 Herbert Hoover imagined an America with “a chicken in every pot and a car in every garage.” Since then, this society has moved onward, never looking back, as the car transformed America from a farm-based society into an industrial
The cars that drove the American Dream have helped to create a global ecological disaster. In America the demand for oil has grown by 22 percent since 1990.
The problems of excessive(过度的)energy consumption, climate change and population growth have been described in a book by the American writer Thomas L. Friedman. He fears the worst, but hopes for the best.
Friedman points out that the green economy(经济)is a chance to keep American strength. “The ability to design, build and export green technologies for producing clean water, clean air and healthy and abundant food is going to be the currency of power in the new century.”
Why is hamburger mentioned in paragraph 2?| A．To explain Americans’ love for travelling by car. |
| B．To show the influence of cars on American culture. |
| C．To stress the popularity of fast food with Americans. |
| D．To praise the effectiveness of America’s road system. |
Aside from being beautiful and promoting growth, the team observed that due to these lights, they needed to use 50 percent less pesticides (杀虫剂) on the crop. This is because this specific recipe of lights activated the defense system of the plants. And as it works on all crops, not just leeks, Roosegaarde foresees a way to reduce the use of pesticides on many other plants. And his project will soon be touring 40 countries, and sending its dancing lights across the world.
Why are less pesticides needed on the crop with the lights alongside?
| A．The lights make it more resistant to pests. |
| B．The lights kill off most of the pests on it. |
| C．The lights are too bright for pests to tolerate. |
| D．The lights are equipped with a defense system. |
Companies which sell liquids like drinks or shampoo rely on bottles for their packaging. Usually these bottles are made of plastic or glass. But as customers have become more concerned about the environment, many companies have begun working to develop paper bottles.
Paper bottles are easy to recycle. They also weigh less than glass or plastic, meaning they’ll require less energy to produce and to move around. They’re usually made from wood pulp (纸浆), which is pressed into a mold (模具) to create the bottle shape. Since paper is soft and easy to mold, companies can design their bottles to take almost any shape they choose.
What’s the main purpose of developing paper bottles?
| A．To make packaging less heavy. |
| B．To reduce the use of raw materials. |
| C．To be more environmentally friendly. |
| D．To cut down on the costs of packaging. |
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