China is going green．In order to reduce air pollution and oil shortages, carmake

China is going green．Inorder to reduce air pollution and oil shortages, carmakers have announced theirplans to develop hybrid vehicles (混合燃料汽车) for theChinese market．Toyota’s hybrid car Prius will be ready to drivein China this week．Let’s have a look at the new car．

Any vehicle is a hybridrun on a rechargeable battery and gas．Hybrid cars havespecial engines, which are smaller than traditional gas engines．Thegasoline engine provides 99 percent of the power when the car is going at a steadyspeed. A specially designed battery motor provides extra power for running uphills or when it needs to speed up．

Step into a Prius, andturn on the engine．The first thing you notice is that it is quieterthan a traditional car．At this point, the car’s gas engine is at rest．Theelectric motor will provide power until the car reaches about 24km/h．Ifyou stay at a low speed, you are effectively driving an electric car, with nogas being used, and no waste gas given off．

The computer decideswhen to use the gas engine, when to go electric, and when to use a combinationof the two．If you go over 24km/h, when you step on the gaspedal (油门), you are telling the computer how fast youwant to go．

The electric motorrecharges automatically using a set of batteries．And when drivingat a high speed, the gas engine not only powers the car but also recharges thebatteries．When you use the brake, the electric motor inthe wheels will work like a generator (发电机) to produceelectricity to recharge the batteries．As a result, thecar’s batteries will last for around 200,000 miles．

66．Theunderlined sentence probably means ________.

A．therewill be more and more green land in China  

B．China’snew cars are combinations of different green models

C．Chinais still young and lacking in experience

D．theenvironment is getting better in China

67. What is the mostimportant feature of hybrid cars?

A. They are powered byboth a rechargeable battery and gas.

B. They have smallerengines than traditional gas ones.

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

D. They are muchquieter than traditional cars.

68. We can know fromthe story that ________.

A. the gas enginerecharges the batteries as well as powering the car

B. using the brake suggeststhat the gas engine should work

C. the car’s batterieswill last for around 200,000 miles without being recharged

D. the batteries can berecharged at any time you want

69. The author writesthe passage mainly to________.

A. announce plans todevelop hybrid vehicles for the Chinese market

B. let people know howto save their gas when driving a car

C. teach people how todrive a hybrid car

D. introduce a new kindof “green” car

70．Whichof the following statements is TRUE according to the text?

A．Thehybrid car is environmentally friendly．

B．Thehybrid car is unable to get itself recharged．

C．Thehybrid car has been made in mass．

D．Thehybrid car can decide what power to use

试题答案

【答案】

 D

 A

 A

 D

 A

【解析】