雅思作文政府支持电动汽车的好处
Ⅰ 电动汽车的好处有哪些
(一)纯电动汽车有以下优点:①零排放。纯电动汽车使用电能,在行驶中无废气排出,不污染环境。②电动汽车比汽油机驱动汽车的能源利用率要高。③因使用单一的电能源,省去了发动机、变速器、油箱、冷却和排气系统,所以结构较简单。④噪声小。⑤可在用电低峰时进行汽车充电,可以平抑电网的峰谷差,使发电设备得到充分利用。(二)纯电动汽车有以下缺点:(1)续驶里程较短;(2)采用蓄电池及电机控制器使成本较高;(3)充电时间长;(4)目前没有授权服务站,维护成本较高;(5)蓄电池寿命短,几年就得更换。
纯电动汽车发展存在的问题(一)技术方面在技术能力方面国内的汽车制造商虽然纷纷表示涉足新能源汽车研发和生产,但由于具有高科技含量并且能够量产的车型有限,且随着电动汽车竞争的开始加剧,由于研发经费过低,创新动力不足,直接影响我国拥有自主知识产权的电动汽车技术的能力;
二)电池方面“电源”是新能源汽车发展的“技术瓶颈”,当前有两大主要的问题:一是电池成本较高,电池的能量密度较低,充电后的续驶里程较短等问题;二是未来电动汽车市场会否出现真正意义上的电池回收、租赁及二次制造产业链;三是电池接口不同,就像不同品牌的手机充电口不同一样,“标准”的不确定,会对电动车发展造成很大影响等等。
(三)能源方面纯电动汽车本身投资比燃油汽车贵,其使用电力要建设发电厂,建设输电配电设施,还要建设充电站,还要建设蓄电池厂等,(四)配套设施方面费者不选择新能源汽车的重要因素还有配套服务的不健全,配套设施少,配套设施建设的滞后和维护保养不方便,充电站在国内如凤毛麟角,难寻其踪。
Ⅱ 按以下要求写一篇120词的英语作文,1,电动汽车的开发受到政府重视 2,分析原因 3,
I like going to school by like, because I think I can keep healthy by riding. Bicycles are still popular in Beijing. Some foreigners buy bicycles to ride. But more and more people buy cars because they think they are faster than bicycles. In fact the exhaust gas from cars makes the air dirty and they waste energy.I think bicycles are better than cars.
Ⅲ 雅思作文范文 (政府应该怎样促进代替新能源
雅思写作大作文考官范文:政府推动新能源发展
Write about the following topic:
Governments should make more effort to promote alternative sources of energy.
To what extent do you agree or disagree with this opinion?
Model Answer:
It has been known for some time now that a move towards sources of energy which are not carbon-based is urgently required to stop the effects of global warming. In my view, there are too few governments who seem to be promoting the use of other types of energy such as wind, wave, solar and nuclear sources of energy.
Governments at present are too reliant on coil, oil and gas. Although some governments are doing research into the use of alternative energy sources, many are not. Energy from the wind, the sea and the sun does not pollute the environment and is an everlasting source of power. Nuclear power is clean, and although it is not totally unproblematic, it would provide a large amount of energy and dramatically improve the environment. Countries such as France have made good use of nuclear power.
My feeling is that more use could be made of wind power. In some countries,there has been a reluctance to use wind turbines, even in areas which are not densely populated, as some people believe they are eyesores. Personally, I believe they are not only useful, but beautiful as well. Governments should spend more time and effort promoting the benefits of this source of energy and trying to make the public understand the reason for change.
In conclusion, I believe that, if governments forced everyone to have a wind turbine and solar panels on the building they live in, made more use of wave power and built more nuclear power stations, then they would manage to avert the dangers that are seriously threatening the Earth.
Ⅳ 用英语写一篇关于电动汽车的优点以及建议的短文
the good thing about electronic automobile car is that it is driven by electricity instead of petroleum. It does not give out bad smoke and does not pollute the environment.
It is smaller in size and the road get less congested.
Ⅳ 作文:电动汽车的好处(说明文)300字
《电动车自述》 我是一辆电动车,被主人称为自行车改良型女士车。 作为电动车中幸运儿的我,非常荣幸地被主人挑选到,我的同伴们也嫉妒我。因为我当选的条件统统具备在身,就等显出高招。 我性格开朗、温和。爱穿红白搭配的衬衫,红是品红,白是丝毫无污染的雪白,穿上它,就显得我美观大方。 我们家族也有优点和缺点,优点是为“车”善良。不骄傲、狂猛。主人踏在我的脚上时,我会给予主人舒适的“空间”驾驶。缺点是在主人驾驶我的时候看“呜呜”地大吵大闹。对主人可能有些影响。 我默默无闻地为主人跑路,对主人忠心耿耿,跑起来像一匹骏马,所以主人对我爱不释手。 我的后备箱能为主人更方便地携带物品。 我的主人对我很好,非常关心我。我生病了,主人把我领进“医院”看病,还经常到“美容院”给我美容。 我的存在也许会使主人的生活增添强劲的活力。
Ⅵ 雅思作文新能源利弊
提升油价是不可能解决交通污染问题的。
1.中国汽车保有量在全世界排在第2位。你提得在高。你还是要用油。污染还是在持续.
2.要解决污染问题只能开发新能源。让汽车转化成电能。汽能。
3.每个城市大力提倡。近的步行或自行车代步。远的乘坐公共交通工具。减少私家车的使用率。
Ⅶ 关于对电动汽车看法的150字英语作文
There is now more of said electric car refers to a pure electric car, which is a single energy storage batteries as a power source for vehicles. It uses batteries as energy storage power source to provide power through the battery to the motor, drive motor running to drive the car forward. From the appearance point of view, the electric car and the daily car and did not see any difference, the main difference between the power source and the drive system. That pure electric vehicle motor of a traditional car engine, battery equivalent to the original tank. Electric car from the chassis, body, battery, motor, controller and battery auxiliary facilities of six parts. Since the motor has good traction characteristics, and therefore does not require a battery vehicle driveline clutch and transmission. Speed is controlled by the controller changes the speed of the motor speed control system can be achieved by conventional cars because of the relatively small impact on the environment, the outlook is widely optimistic, but
The current technology is not yet mature.
目前人们所说的电动汽车多是指纯电动汽车,即是一种采用单一蓄电池作为储能动力源的汽车。它利用蓄电池作为储能动力源,通过电池向电机提供电能,驱动电动机运转,从而推动汽车前进。从外形上看,电动汽车与日常见到的汽车并没有什么区别,区别主要在于动力源及其驱动系统。即纯电动汽车的电动机相当于传统汽车的发动机,蓄电池相当于原来的油箱。 电动汽车由底盘、车身、蓄电池组、电动机、控制器和辅助设施蓄电池六部分组成。由于电动机具有良好的牵引特性,因此蓄电池汽车的传动系统不需要离合器和变速器。车速控制由控制器通过调速系统改变电动机的转速即可实现由于对环境影响相对传统汽车较小,其前景被广泛看好,但
当前技术尚不成熟。
Ⅷ 电动汽车的好处
最好的一点 :便宜,电费的成本是油费的十分之一。
同时,与终端用户相比,纯电动汽车综合使用成本低也是吸引很多人购买纯电动汽车的主要原因。特别是家庭或单位有收费条件的,按1元计算1千瓦时的费用。对于紧凑型纯电动汽车来说,100公里的耗电量在15度左右,也就是说,100公里的综合成本是15元,比燃油车更划算。同时,与燃油车相比,维修周期更长,综合维修成本更低。
在电子平台下,更容易实现智能化
目前,自动驾驶技术、远程OTA升级技术和远程故障诊断技术是电动汽车的最大优势。这就是为什么这些技术是特斯拉纯电动产品最大的优势。与燃油车相比,在电动平台下更容易实现智能化。
比如我买的小鹏汽车,经常能够升级,体验新的功能,这一点其乐无穷
Ⅸ 为何现在各国都在大力发展电动汽车,电动汽车有何好处
近些年不管国内还是国外,基本都在大力推动发展电动汽车,由于技术等原因虽然暂时还无法取代燃油车,但是电动汽车的不少优势已经凸显出来了,也是各国今后汽车产业发展的方向。那发展电动汽车具体有哪些好处呢,下面就让我们来分析一下。
电动汽车虽然具有不少优势,但缺点也还是有的,现在电动汽车发展就存在三个瓶颈,要是能解决这些问题的话,电动汽车产业应该会有突破性的发展。第1个瓶颈是电动车充电时间较长,出行较多的人会感觉吃不消,因为每次开完一定路程之后都需要充电好几个小时,这个时候如果有事要出去的话,就要中断充电,不然的话就只好打车;第2个是续航时间不够,这也是电动汽车普遍存在的问题,许多人开电动车都会担心电力不够,害怕抛锚在半路上,都养成了经常关注电池电量的习惯;还有一个就是充电设施不够,公路上的充电桩太少就会很不方便,也会制约人们购买电动汽车的念头。
Ⅹ 英语作文白电动车的好处
电动车的优点
1.环保,电动车能真正做到0排放,无污染
2.节能省钱,电动车每百公里仅需电费1元左右,跑一年下来也不过就是几十块钱电费
3.体积小,不占地方
4.安全.电动车速度不快,重量轻于其他车辆,所以刹车性能好.行驶无声音,使驾驶人对路况掌握非常清晰
5.质量可靠,机械性的零件较少,磨损较少,使用寿命长.
6.操作简单,会骑自行车就一定会骑电动车