英語(yǔ)聽(tīng)力文摘 最快的車(chē)是什么？

00:00

00:00

MP3下載 文本下載

https://online2.tingclass.net/lesson/shi0529/0007/7643/392.mp3

https://image.tingclass.net/statics/js/2012

最快的車(chē)是什么?

Don :Hybrid cars are known as hybrids because they use an electric motor to augment the performance of a small, efficient gasoline engine. But this isn’t the only reason hybrids are more efficient than gas-powered cars. Did you know that Hybrid cars are made of lightweight materials, so they require less energy to accelerate or drive up a hill?

Yaël: You know, Don, maybe you just need to trust that hybrid cars are interesting enough on their own. I mean, did you know that some hybrids rely on a process known as regenerative braking to recharge their batteries. You see, when you brake, you remove energy from your car, which normally just dissipates in the form of heat. In some hybrids, though, the electric motor is used to slow down the car, at which time it also acts as a generator so it can divert some of that energy back to the batteries.

And did you know? In hybrids, instead of idling, the gas engine turns itself off, and you get power from the electric motor and batteries. Also, hybrid cars’ aerodynamic design and special tires reduce both air drag and drag against pavement, which also increases efficiency.

D: Cool!

Don:混合動(dòng)力汽車(chē)簡(jiǎn)稱(chēng)“hybrids”，因?yàn)檫@類(lèi)汽車(chē)采用電動(dòng)馬達(dá)增加小而高效的燃?xì)獍l(fā)動(dòng)機(jī)動(dòng)力。但這并混合動(dòng)力汽車(chē)比燃?xì)馄?chē)高效的原因之一。你知道嗎?混合動(dòng)力汽車(chē)選用輕型材料，所以加速或爬坡需要的動(dòng)力相對(duì)更少。

Yaël: Don, 要知道，混合動(dòng)力汽車(chē)本身就很有趣。我的意思是，你知道嗎?一些混合動(dòng)力汽車(chē)依靠“再生式制動(dòng)”來(lái)完成充電。一般的汽車(chē)剎車(chē)時(shí)，通常以散失熱量的形式損失汽車(chē)動(dòng)力。但是，混合動(dòng)力汽車(chē)的電動(dòng)馬達(dá)讓汽車(chē)減速，同時(shí)將這部分能量轉(zhuǎn)換成電能，充當(dāng)發(fā)動(dòng)機(jī)的功效。

另外，你知道嗎?混合動(dòng)力汽車(chē)發(fā)動(dòng)機(jī)沒(méi)氣了，汽車(chē)并不會(huì)空轉(zhuǎn)，而是由電馬達(dá)繼續(xù)供能。此外，混合動(dòng)力汽車(chē)采用氣流設(shè)計(jì)和特殊輪胎，從而減少空氣阻力和路面摩擦阻力，這也是混合動(dòng)力汽車(chē)跑得快的原因。

D: 太贊了!

augment:增加，增大

aerodynamic：空氣動(dòng)力學(xué)的