[ Movie Reviews | Common Sentences | Glossary of Correct Usage | High School Vocab | Questions & Answers | Sample Letters ]
[ Movies Lines | Advertisements | Words Differentiation | Common Errors | Songs | Links ]
<<Prev
Voa, Cbs, Fox, Cnn
Next>>
TOEFL
Vocabulary
English Daily Conversation
Learn grammar by example
Learn American idioms
Congress Told Hydrogen Fuel Decades from Being Practical
Several automakers have produced test models of hydrogen-powered vehicles, at a cost of about $1 million each. The director of the Massachusetts Institute of Technology's automotive research laboratory, John Haywood, says it could be decades before hydrogen fuel cells become cost-effective as a viable alternative to today's gasoline-powered engines.
A 40-to-50 year wait does not appeal to U.S. lawmakers who are searching for a solution to America's energy challenges today. Representative Bob Inglis suggested President Bush issue a challenge on the development of hydrogen technology similar to President Kennedy's 1961 call to send a man to the moon by the end of the decade.
Aside from enormous technological leaps, forging a "hydrogen economy" would require a massive overhaul of America's, and the world's, infrastructure. Yet proponents appear ________. They point to humanity's pioneering spirit and say that what may seem _________ today could be solved tomorrow. Even skeptics admit that oil consumption cannot continue indefinitely, and eventually a replacement for gasoline-powered vehicles will have to be ________.
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
Common English mistakes
Ancient Chinese stories
Learn English Proverbs
American Slang expressions
Medical Explorer
