【題目】China is going green．In order to reduce air pollution and oil-shortages, car makers have announced their plans to develop hybrid（混合燃料）cars for the Chinese market．Toyota’s hybrid car Prius will be ready to drive in China this week．Let’s have a look at the new car.

Any vehicle is a hybrid car when it combines two or more sources of power．Hybrid cars have special engines, which are smaller than traditional gasoline engine．They run at 99 percent of their power when the car is going at a steady speed． A specially designed battery motor provides extra power for running up hills or when extra speed-up is needed．

Step into a Prius, and turn on the engine．The first thing you notice is how much quieter it is than a traditional car．At this point, the car’s gasoline engine is at rest．The electric motor will provide power until the car reaches about 24 kilometers per hour．If you stay at a low speed, you are effectively driving an electric car, with no gasoline being used, and no waste gas gives off.

The computer makes the decision about when to use a gas engine, when to go electric, and when to use a combination of the two．If you go over 24 kilometers per hour, when you step on the gas, you are actually telling the computer how fast you want to go.

The electronic motor recharges automatically using a set of batteries．When driving at a high speed, the gasoline engine not only powers the car, but also charges the batteries.

Any time you use the brake, the electric motor will work like a generator（發(fā)電機(jī)）and produce electricity to recharge the batteries．As a result, the car’s batteries will last for around 200,000 miles.

【1】Which of the following pictures can show how the power system of Prius works correctly?（W—Wheel of the car, E.M—electric motor, G.E—gasoline engine, C—computer, B—batteries）

A．

B．

C．

D．

【2】What is the most important characteristic of hybrid cars?

A． They are powered by both a rechargeable battery and gasoline.

B． They have smaller engines than traditional gasoline ones.

C． They use only 99 percent of their power to run up hills.

D． They are much quieter than traditional cars.

【3】We can know from the report that ___________.

A． the batteries can be recharged at any time you want

B． using the brake suggests that the gasoline engine should work

C． the gasoline engine charges the batteries as well as powering the car

D． the car’s batteries will last for around 200,000 miles without being recharged

【4】The author writes this passage mainly to ___________.

A． announce plans to develop hybrid cars for the Chinese market

B． let people know how to save their gasoline when driving a car

C． teach people how to drive a hybrid car

D． introduce a new kind of “green” car

【答案】

【】B

【】A

【】C

【】D

【解析】本文主要介紹的就是豐田公司生產(chǎn)的一種新型的油電混合型的汽車。

【1】根據(jù)第三至四段可知電腦控制著驅(qū)動輪胎行駛的電動發(fā)電機(jī)和汽油發(fā)動機(jī)，電子發(fā)動機(jī)在剎車使可以向電池充電，而達(dá)到一定速度，汽油發(fā)動機(jī)在驅(qū)動車輛行進(jìn)時也會向電池充電，輪胎則時刻向電腦選傳送速度信息，故B項(xiàng)正確。

【2】根據(jù)文章第二段Any vehicle is a hybrid when it combines two or more sources of power．Hybrid cars run off a rechargeable battery and gasoline一句可知這種新車最大的特點(diǎn)是有汽油發(fā)動機(jī)和電發(fā)動機(jī)兩種發(fā)動機(jī)。可知答案選A。

【3】根據(jù)第五段When driving at a high speed, the gasoline engine not only powers the car, but also charges the batteries可知而達(dá)到一定速度，汽油發(fā)動機(jī)在驅(qū)動車輛行進(jìn)時也會向電池充電，故答案C正確。

【4】通讀全文可知， 根據(jù)本文主題段第一段In order to reduce air pollution and oilshortages, automobile manufacturers have announced their plans to develop hybrid vehicles (混合燃料汽車) for the Chinese market．Toyota's hybrid car Prius will be ready to drive in China this week．Let's have a look at the new car可知本文主要介紹的就是豐田公司生產(chǎn)的一種新型的油電混合型的汽車。故答案D正確。

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