4 One way to help move them out of the lab and into our gas tanks is by ending nearly 16 billion dollars in annual subsidies for fossil fuels and investing in advanced biofuels instead,with a goal of getting 1 billion gallons of the best fuel to the pumps by 2017.
Electricity is another important low-carbon fuel that can power part of our vehicle fleet and help protect consumers from rising gas price. 5 And as our electrical grid becomes greener,plug-in vehicles will get greener,too.
A.Even on today’s electric grid,a car that runs on electricity creates less global warming pollution than a conventional car.
B.Extracting these fuels may harm ancient forests and bird habitats,and put water supplies at risk.
C.This habit has become a dangerous addiction that threatens our national security,our climate and our economic prosperity.
D.Using energy from renewable sources will put America on the path to a cleaner environment,energy independence,and a stronger economy.
E.Our oil dependence leaves us vulnerable to rising prices.
F.Advanced biofuels like these,however,have yet to be produced on a large scale.
G.Biofuels,made from plant materials instead of petroleum,can be a clean,renewable energy resource if they’re grown right.
Ⅲ.语法填空
With the development of industry,air pollution is getting more and more serious.In Beijing,many people suffer 1. different kinds of illnesses because of air pollution.
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