Trends in worldwide energy use point up an urgent need to expedite the development of technology that
can wean the world % from fossil fuels. Many experts contend that the recent increases in the price of oil
will not be followed, as in the past, by an easing off after a year or two. Even if that were not the case, the
world would have to be concerned about inevitable constraints on supply. Gasoline and diesel engines in
motor vehicles consume the (1) ________ majority of fossil fuel used outside power generation. The only
technology currently in the pipeline for rescuing transportation from a very serious oil crunch is (2)
________ vehicles operating with hydrogen fuel-cell engines. Private industry, long a mere bystander in
the development of the hydrogen economy, is now (3) ________ the way to develop affordable and
environmentally desirable hydrogen fuel-cell vehicles. The United States government is spending about $
100 million per year for research on hydrogen vehicles and hydrogen-storage technology. Major
automobile manufactures claim they will have (4) ________ hydrogen cars by 2015. These cars, it should
be noted, will produce no greenhouse gases. Like any new fuel technology, hydrogen will require
infrastructure. Plants to generate usable hydrogen, pipelines to move it, and depots in which to store it,
must be put in place. Stations for refilling a vehicle’s hydrogen tank must be as common as ordinary gas
stations before many consumers will venture onto the open road with hydrogen cars, yet this is not an
unrealistic scenario. Most probably, existing oil and gasoline infrastructure can be affordably – and
incrementally – (5) ________ to hydrogen infrastructure.
Question 1: A. enormous B. giant C. vast D. most
Question 2: A. that of B. those of C. those D. whose
Question 3: A. following B. leading C. developing D. directing
Question 4: A. cost-benefit B. cost-effective C. cost-reasonable D. cost-economical
Question 5: A. restored B. translated C. converted D. switched
Trends in worldwide energy use point up an urgent need to expedite the development of technology that
can wean the world % from fossil fuels. Many experts contend that the recent increases in the price of oil
will not be followed, as in the past, by an easing off after a year or two. Even if that were not the case, the
world would have to be concerned about inevitable constraints on supply. Gasoline and diesel engines in
motor vehicles consume the (1) ________ majority of fossil fuel used outside power generation. The only
technology currently in the pipeline for rescuing transportation from a very serious oil crunch is (2)
________ vehicles operating with hydrogen fuel-cell engines. Private industry, long a mere bystander in
the development of the hydrogen economy, is now (3) ________ the way to develop affordable and
environmentally desirable hydrogen fuel-cell vehicles. The United States government is spending about $
100 million per year for research on hydrogen vehicles and hydrogen-storage technology. Major
automobile manufactures claim they will have (4) ________ hydrogen cars by 2015. These cars, it should
be noted, will produce no greenhouse gases. Like any new fuel technology, hydrogen will require
infrastructure. Plants to generate usable hydrogen, pipelines to move it, and depots in which to store it,
must be put in place. Stations for refilling a vehicle’s hydrogen tank must be as common as ordinary gas
stations before many consumers will venture onto the open road with hydrogen cars, yet this is not an
unrealistic scenario. Most probably, existing oil and gasoline infrastructure can be affordably – and
incrementally – (5) ________ to hydrogen infrastructure.
Question 1: A. enormous B. giant C. vast D. most
Question 2: A. that of B. those of C. those D. whose
Question 3: A. following B. leading C. developing D. directing
Question 4: A. cost-benefit B. cost-effective C. cost-reasonable D. cost-economical
Question 5: A. restored B. translated C. converted D. switched
