- 2、跪求一篇寫新能源汽車的英語作文! 本人高中。。
- 3、急需《電動車的利與弊》英語作文 電動車的利與弊英語作文
- 4、跪求一篇英語作文——有關電動車的利與弊 要快，事后定當重謝
- 5、關于電動汽車優點及建議的英語短文 急急急急急急 在線等，求大神幫忙
以上就是由電動邦我給您分析得關于新能源電動汽車的四大優缺點 。 不知道是否對你們有所幫助，不過時代在更新，相信新能源電動汽車以后的發展肯定會越來越好，并且完善功能。
Environmental protection everybody has a responsibility
Now,the pollution already has become the globalization question.The air,Haihe river,the soil pollution extremely is all harmful to the humanity and the zoology and botany
For example,because present automobile more and more many,therefore the waste gas discharges also day by day increases,as the matter stands our air is polluted extremely seriously,this is extremely harmful to our health.Also,the water source under ours destruction,the pollution extremely is also serious,again like this gets down our humanity to be able to perish.
For our humanity,therefore we must adopt the effective action antipollution,the purification environment,protects the ecological equilibrium.For example,we may the afforestation prevent soil erosion.We may develop the new energy and so on.Environmental protection everybody has a responsibility.
an economically developed coastal cities, in this beautiful city life in the sky was 20 years. The witness to the scene of the historic moment, but in the harmony of the city, there was a scene not in harmony, the electric prevailed. Electric cars a drilling motor vehicles with non-motor vehicle of the legal gaps in the new product, the electric vehicle of that time there is indeed the Chinese People' s daily on the move brought some facilities. However, things cannot be just one, because everything has two aspects. We would say electric cars the advantages and disadvantages, and only through the only revealed a number of very serious problem. First, let us say electric cars to the people of the benefits. 1, section to environmental protection, and faster than other than motor vehicles soon, and low cost without a licence, driving easily, both young and old suitable "four points mentioned above is electric bicycle in the minds of most people recognized advantage. Now let us look at electric cars the defects and what other places, electric battery should not be permanent, cell damage, replacement rate is high, but battery recovery in the country is still relatively low, this does not fully comply with section to environmental protection concepts, and speed is indeed a bicycle faster than the motor vehicle slow
Nowadays, the electric bicycle is developing fast, many kinds of which can be seen on the road. It is popular with more and more people. Why?
The reasons are simple. First of all, it is cheaper and more convenient than the motorbike or the car. What's more important is that it saves strength and goes fast, so the rider feels less tired. Also, it is easy for anybody to drive, no matter you are old or young. Finally, it is not just energy-saving but environmentally friendly as well.
However, the electric bike also has its disadvantages. On the one hand, the rider may lose the alternative to do sport, which is not beneficial to health. On the other hand, it may also lead to more traffic accidents in that it goes extremely fast and its emergency brakes dont't woke well.
Personally, I am of the opinion that the electric bicycle has more advantages than disadvantages. As the saying goes, every coin has two sides. As long as the rider drivers carefully, the number of accidents it causes can be reduced to the minimum. In conclusion, the electric bicycle is a promising means of transportation.
關于電動汽車優點及建議的英語短文 急急急急急急 在線等，求大神幫忙
Advantages and Disadvantages of EVs
The most obvious advantage of electric car batteries is that they don't produce the pollution associated with internal combustion engines. However, they still have environmental costs. The electricity used to recharge EV batteries has to come from somewhere, and right now, most electricity is generated by burning fossil fuels. Of course, this produces pollution. But how does the pollution produced by burning fossil fuels to recharge electric car batteries compare to the pollution produced by internal combustion engines? According to the Electric Vehicle Association of Canada, or EVAC, even EVs recharged from coal-powered electric generators cut carbon emission roughly in half. EVs recharged from cleaner forms of electrical power generation, such as hydropower and nuclear plants, can reduce carbon emissions to less than one percent of those currently produced by internal combustion engines. So, even in the worst case scenario, cars operated by EV batteries are cleaner than gas-powered cars.
Another important advantage of battery-powered motors over gas-powered engines is the lower cost of the fuel -- that is, electricity for EVs and gas for the internal combustion engines. The United States Department of Energy has calculated that a typical EV can run for 43 miles on a dollar's worth of electricity. Only a substantial drop in the cost of gasoline could give gas-powered cars anywhere near such a low cost per mile.
Yet another advantage of these rechargeable batteries is that they recycle well. Almost 100 percent of these batteries can be recycled, which keeps old batteries from becoming a disposal problem.
The major disadvantage of battery-powered cars, as we mentioned in the last section, is the time required to recharge the batteries. With lithium-ion battery technology, a fully charged EV can travel a distance comparable to an internal combustion engine vehicle with a full tank of gas, but it still needs to be placed on a recharger at the end of that time. At present, this means a drained EV will be out of service for several hours before it's fully recharged. Of course, this is a serious disadvantage. In the future, faster recharging technology may become available, but in the near term, electric cars won't be the vehicles of choice for long trips. Even so, most driving is done relatively close to home and for this reason, battery power will serve as well as gasoline power. A possible solution to the recharging situation may be battery-replacement stations, where instead of recharging your EV you can simply swap your drained battery for a fully charged one. This system would allow batteries to be recharged outside of vehicles and would greatly reduce the amount of time required to get an EV up and running again after its battery is fully discharged.
Another disadvantage of electric car batteries is their weight. Because they need to do more than traditional car batteries, electric car batteries need to be linked together into arrays, or battery packs, to provide additional power. These collections of batteries are heavy. The lithium-ion battery pack in a Tesla Roadster weighs about 1,000 pounds (453.6 kg). That's a lot of weight to carry and it can greatly reduce the car's range. However, the designers of the Roadster have offset this battery weight with a light frame and body panels. The entire car only weighs 2,690 pounds (1220.2 kg) -- not terribly heavy when you consider that more than a third of that weight is battery.
Given the importance of the battery to an electric car, you might wonder what will happen as that battery grows older. How long will it be able to power the car? And when it finally dies, can it be replaced or is it simply more economical to buy a new car? Read on to find out.