[单项选择]Cars are streamlined so that they offer the least possible resistance _________ the air streaming past.
A. against
B. with
C. for
D. to

[单项选择]Cars are streamlined so that they offer the least possible resistance _________ the air streaming past.


A. against
B. with
C. for
D. to

[单项选择]Many cars ______ this year so far.


A. will be made
B. have been made
C. are made

[单项选择]She was so touched by his kind offer that for a moment she was ______ for words to express her thanks.
A. at a loss
B. in question
C. out of control
D. ill at ease

[单项选择]It's an offer that you won't get again, so I would ______ it if I were you.
A. relate to
B. count on
C. accept of
D. jump at

[单项选择]Many people prefer large cars, ____ large cars are safer than small ones.
A. think
B. to think
C. having thought
D. thinking

[单项选择]A whale shark's body is stout but streamlined, like that of a whale.
A. tough
B. brightly spotted
C. striped
D. smoothly shaped

[单项选择]It can be inferred that railroad refrigerator cars came into use ______.


A. before 1860
B. before 1890
C. after 1900
D. after 1920

[单项选择]In winter drivers have trouble stopping their cars from ______ on icy roads.
A. skating
B. skidding
C. sliding
D. slipping

[单项选择]There is abundant evidence that cars have a harmful effect on the environment.（）
A. dear
B. sufficient
C. strong
D. obvious

[单项选择]

Passage One
There are more than 100 million cars in the United States. A normal car gets less than 15 miles from each gallon of gas. It travels about 10,000 miles each year. In that time, it uses about 650 gallons of gas. In all, autos use up some 70 billion gallons of gas a year. That comes out to be four-and-a-half million barrels a day.
The importance of saving gas, then, cannot be stressed too much. Let’s say, for instance, that the fuel used by each car could be cut back just 15 percent. This could be done by making fewer trips each day. It could be done through better driving habits. If it were done, our nation’s use of fuel would fall by close to two-thirds of a million barrels per day.
We can all help save gas. One way is to ride the buses. Some of us could walk to work. We could ride mopeds(机动脚踏两用车) or bikes. Another way is to share a ride. We could join carpools (合伙使用汽车). About one-third of all cars are used for going to and fr
A. are required by law
B. will not cause any accidents
C. help to keep the car in good shape
D. help save gas