题干

统一是统治者巩固统治、维护安定的重要前提,更是民心所向,大势所趋,请阅读材料回答问题:

材料一:秦始皇在咸阳宫举行的一次庆功宴上对群臣说:“天下共苦,战斗不休,以有诸侯”。

——《史记•秦始皇本纪》

材料二:“臣愚以为诸不在六艺之科孔子之术者,皆绝其道,勿使并进。邪辟之说灭息,然后统纪可一而法度可明,民知所从矣。”

(译意:凡是不在“礼、乐、射、御、书、数”六艺之内,不是孔子所传下来的学问的,都要断绝他们的进身之道,不要使他们的学说发展。邪僻学说不流行于世,则统治的法度就可以统一明了,百姓就知道应该怎么做了。)

——《汉书·董仲舒传》

材料三:东汉末年,孙权、刘备联军于建安十三年(208年)在长江大破曹操大军的战役。这是中国历史上以少胜多、以弱胜强的著名战役之一,是中国历史上第一次在长江流域进行的大规模江河作战。

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    After years of research and testing, the hybrid car was developed and put on the market. It' s an interesting and exciting new improvement in today' s world as we look for better ways to protect the quality of the air we breathe and conserve our natural resources.

    The quality of our air is affected by many different things. But one of the largest sources of air pollution is the burning of fossil fuels such as coal and gasoline which is used to power a car' s engine. The EPA has set national standards to help control the level of harmful pollutants sent off into the air, and the automobile industry has acted by producing a hybrid car that uses less gas and therefore causes less pollution.

    A hybrid car is a combination of a regular car that runs on gasoline and an electric car that is battery powered. Some people tend to think that since the hybrid car is partially electric, you have to plug it in to charge it. But that's not how it works. The 144volt battery pack is actually recharged through the energy that is produced when the car's brakes are used. This is referred to as “regenerative braking”, because it generates electricity.

    Although the hybrid car still runs on gasoline most of the time, this helps it use less gas than a regular car. When the driver stops at a traffic light, the engine automatically shuts off to save fuel. Then, as soon as the driver puts the car in gear and touches the gas pedal, the engine starts back up.

    Have you ever ridden in a car with someone who ran out of gas? That probably wouldn't happen if you were riding in a hybrid car. It flashes a warning on its computer screen that says, “I am low on gas”. When it completely runs out, the warning reads, “YOU ARE NOW OUT OF GAS!” Then the electric power supply kicks in to let the driver travel a few more miles to a gas station.