高中英語語法填空:短文題型培優(yōu)練習 Test 15

高中英語語法填空:短文題型培優(yōu)練習 Test 15

As the owner of the first Nissan Leaf electric car sold in Maine, it is my pleasure to give slide presentations to various groups about the history, benefits, and personal experiences of driving an electric vehicle.

After a showing of the movie Revenge of the Electric Car , I was participating 　61　 a question and answer session when someone in the audience shouted, “Your car is not zero-emission!”

　62　 the Leaf has no tailpipe and causes no local emissions, I had to acknowledge that my car's use of electricity 　63　 (indirect) contributes to smoke stack emissions from power plants that burn fossil fuels.

In other words, it's a transfer of pollution to a different point in the “carbon cycle”. This of course begs the question: What's the point of driving an electric car from an environmental perspective if this 　64　 (happen), while the other benefits not withstanding? Chin up, my friends: All is not lost.

At this point, I'll direct you to a U.S. Department of Energy link that lets you determine your plug-in electric car's CO2 footprint.

As you know, power companies across the country produce electricity both by burning hydrocarbons and from 　65　 (renew) sources that vary from region to region— 　66　 (make) electric vehicles “greener” in certain areas of the country than in others.

Keep in mind an electric car gets cleaner as the sustainability movement grinds its way forward and individual power grids gain a higher percentage of renewables. 　67　 (have) the patience to wait for that to happen, I chose a different path: solar power.

During the past year, my Leaf used roughly 1800 kilowatt-hours of electricity, so I had a photovoltaic system 　68　 (install) that will offset the power required to fuel my car. 　69　 the utility rate where I live is $0.14/kWh, slightly above the national average, that works out to be $612 a year if I were to buy that amount of power.

So what's the payback, you're thinking?

For me, it's a combination of not buying gasoline—the savings of 　70　 will pay for the solar panels over a period of several years—along with the comfort of knowing my ride is truly zero-emission.

So, the question remains: Will your next vehicle be zero-emission ...Yes or No?