单选题Task 2 Directions: This task is the same as
Task 1. The 5 questions or unfinished statements are numbered 41 to 45.
Once it was considered good to keep the
car engine idle a minute or two following cold stars. Today, with modern
technology, the opposite is true. An engine operating under road conditions will
warm up faster and run more efficiently than one that is idling. Idling just
burns gas (on average, about a gallon an hour). When you have a
full tank of gas, park the ear facing downhill is possible, this will prevent
any gas from coming out of the tank. Parking in areas of less or no sunlight
helps prevent the gas from steaming that would occur if you parked in the hot
sun. Your car will stay cooler, too, and that means less gas consuming work for
the air conditioner once the engine is started. Stay away from
wide-track tires if you want top mileage (耗油1升行强多的英里里程). Narrow-track tires
produce less friction and thus rolling resistance. The same effect is achieved
by adding three to five pounds above recommended pressure to each tire; while
this won't noticeably affect your ear's sliding quality, it will increase tire
life and gas mileage. Check tire pressure often,
especially when the weather turns cold. The difference between winter and summer
tire pressure can be as much as eight pounds. This could cost you two miles per
gallon.
单选题
The main purpose of the passage is ______.
【正确答案】
D
【答案解析】[解析] 本题考查文章的主旨。主旨题出现在第一题，答案一般会在第一段。从第一段第三、四句An engine operaring under road conditions will warm up faster and run more efficiently than one that is idling。Idling just burns gas．(在路面状况下，汽车处于行驶中，发动机会热的更快，运转的更有效。 让发动机空转只会费油。)可以得知作者是告诉我们省油的办法，因此答案选D)。
[避错] 本文中的节油方法都是作者的见解，并没有提及老练的司机的建议，所以A)“告诉我们老练 的司机如何省油”不正确；B)“教给人们如何恰当地开车”和C)“告诉我们如何让车平稳行驶”，文章中 没有提及。
单选题
According to the passage, keeping the engine run idly ______.
【正确答案】
A
【答案解析】[解析] 根据关键词run idly定位到文章第一段最后一句：Idling just burns gas．该句指出，让发动机空 转只会费油，故答案选A)。
[避错] B)“会使发动机运转得更有效”和C)“会使发动机会热的更快”都是在路面状况下，汽车处于 行驶中的结果，不是让发动机空转的结果；D)“在低温情况下是必要的”文章里没有提及。
单选题
Parking your car in a cool place ______.
【正确答案】
B
【答案解析】[解析] 根据题干关键词parking和a cool place定位到文章第二段第二句。由该句可知，把车停在阴 凉处或阳光少的地方，会减少汽油的蒸发，而且车会一直很凉．这意味着一旦引擎发动．车内空调费的 油会较少。因此答案选B)。
[避错] 本题的答案要在第二段中寻找，因为只有第二段提到了阴凉处或阳光少的地方。C)虽然也是 第二段提到的，但是根据park the car facing downhill is possible：this will prevent any gas from coming out of the tank．我们得知它是车子朝下坡路停放的结果，而不是把车停在阴凉处或阳光少的 地方的结果。