17．Americans love cars．They go everywhere in them.85% of people in the US go to and from work by car．And most adults have driving licenses．Why does this car culture exist？
How it started
Americas'love of cars started after the war when soldiers returned home from World War II to rebuild their loves．They borrowed money from the government to buy houses and cars which became the symbol of status（地位）．The more money they had，the bigger cars were．
Making of roads
During the war，President Eisenhower noticed what good roads Germany had．He decided to build new four-lane（四車道） roads in America．He said if something happened suddenly，the two-lane roads wouldn't be able to carry all the cars that would suddenly leave the cities．Car and oil company liked this idea and building started．
Car lovers
Not just teenagers are crazy about cars．Some Americans love their car so much that they paint their cars beautifully!These are called Art Cars．Every April there is an activity in Huston，Texas，there they show their cars．
Pollution
Cars have polluted the environment．American President Bush refused a world-wide law that is against pollution．Many countries were angry about it．Bush said he had to think of the American economy（經濟） and all the American people that make money from cars．Factories say they want to make cars that pollute less．But others say making cars that pollute less will never be as good as having fewer cars．
46．When did Americans begin to love cars？B
A．Before the new two-lane roads were built．
B．After World War II
C．During World War II
D．Before World War II
47．New four-lane roads were builtC．
A．in Germany
B．by car and oil company
C．in America
D．when something suddenly happened
48．The underlined word"building"here means"the building ofD"．
A．companies
B．soldiers loves
C．houses
D．roads
49．The meaning of the last sentence is"A"．
A．It's better to have fewer cars
B．It's better to make cars that pollute less
C．It's easier to make cars that pollute less
D．It's easier to make people have fewer cars．
分析 美國人愛車，大部分大人有駕照，文中提到了汽車的文化，汽車怎樣制成的，還有四車道的誕生，還有汽車的污染．
解答 46．B：細節題．根據America's love of cars started after the war（戰爭）when soldiers returned home from World War II 可知，美國人愛車是在二戰后，所以本題應該選B．
47．C．細節題：根據He decided to build new four-lane（四車道）roads in America．可知，應該是在美國．所以本題選C．
48．D．推理題：根據上文He decided to build new four-lane（四車道） roads in America．He said if something happened suddenly，the two-lane roads wouldn't be able to carry all the cars that would suddenly leave the cities．Car and oil company liked this idea and building started．我們知道，本句的意思應該是"汽車和石油公司很喜歡他的主意，所以修路的工程就開始了．"所以本題選D．
49，A：細節題．通過閱讀上下文Cars have polluted the environment．汽車污染環境，本句的意思就是最好有更少的汽車．所以本題選A．
點評 本題除了第3小題能直接在文中找到答案外，其他的都需要通過仔細閱讀，加以分析推斷方能得出答案，但是只要我們能將題目放進原文，反復比較得出正確的答案還是比較容易的．
