题目内容
A kind of little cars may some day take the place of today's cars. If everyone drives such cars in the future, there will be less pollution in the car. There will also be more space for parking cars in cities, and the streets will be less crowded. Three such cars can fit in the space now needed for one car of the usual size.The little cars will cost much less to own and to drive. Driving will be safer, too, as these little cars can go only 65 kilometers an hour. The cars of the future will be fine for getting around a city, but they will not be useful for long trips. Little cars will go 450 kilometers before needing to stop for more gasoline.
If big cars are still used along with the small ones, two sets of roads will be needed in the future. Some roads will be used for the big, fast cars and other roads will be needed for the slower, small ones.
1. There is much pollution in the car today because________.( )
A. people drive big cars
B. people drive little cars
C. the cars go 65 kilometers an hour
D. the cars can go 450 kilometers an hour
2. The usual size of cars today are ________ that of future cars.( )
A. much smaller than
B. much the same as
C. three times as large as
D. a little larger than
3. We can learn from the passage that________.( )
A. big cars cost less to own and to drive
B. big cars are not useful for long trips
C. the cars of the future will be much smaller than today's cars
D. small cars are faster than big ones
4. The street will be less crowded because________.( )
A. there will be fewer cars in the future
B. there will be fewer passengers in the street
C. driving future cars will be safe
D. future cars will be much smaller
5. Two sets of roads may be needed in the future because________.( )
A. there will be too many cars in the future
B. more and more people will get around a city
C. big cars and little cars may be used along with each other
D. it looks more beautiful to have two sets of roads
Antifreeze is a liquid(液体) that is added to water to keep it from freezing. When water freezes and turns to ice,it expands(膨胀).The force of water expanding is so great that it will break the hardest metal.Water is used in car engines(发动机) to keep them cool while they run,and if this water is allowed to freeze in winter it can break the iron block of the engine.That is why antifreeze is necessary.
Water freezes at 0℃;the usual kind of antifreeze will not freeze until the temperature is-40℃.A mixture(混合物) of five parts of water and four parts of antifreeze will prevent freezing at-18℃;four parts of water and five parts of antifreeze reduce this to -22℃.
Alcohol is a kind of good antifreeze,but when the air is running it becomes hot and the alcohol boils away,so it must be changed very often.Most people use antifreeze that does not boil away when the engine is running.There are several chemicals that do this.One of the most popular is called ethylene glycol.
【小题1】people use ________ to keep car engines cool.
| A.antifreeze | B.water | C.alcohol | D.ethylene glycol. |
| A.0℃ | B.-18℃ | C.-22℃ | D.-40℃ |
| A.keep alcohol in water |
| B.stop ice from becoming water |
| C.make the freezing point of water lower |
| D.raise the freezing point of water |
| A.water | B.ethylene glycol | C.any chemical | D.any mixture |
| A.tell us what antifreeze is |
| B.make people buy antifreeze |
| C.tell us that cars need antifreeze |
| D.show us how to protect car engines |
Here is a menu for fast food restaurant. The prices are in American money, called dollars and cents. There are 100 cents in a dollar.
|
|
small |
large |
|
small |
large |
|
Main meals |
|
|
Drinks |
|
|
|
Hamburger |
1.80 |
2.30 |
Coca Cola |
0.80 |
1.00 |
|
Chicken burger |
1.90 |
2.40 |
Tea |
0.70 |
0.90 |
|
Vegetable burger |
1.80 |
2.30 |
Coffee |
0.80 |
1.00 |
|
Side dishes |
|
|
Sweets |
|
|
|
Fries |
0.90 |
1.10 |
Ice cream/ Chocolate |
1.20 |
1.60 |
|
Salad |
1.00 |
1.20 |
Jam |
0.50 |
/ |
1.From the menu, how much does a small hamburger cost?
A.One hundred and eighty dollars.
B.Two dollars and thirty cents.
C.Eighty cents.
D.One dollar and eighty cents.
2.If you have only three dollars, what can you buy?
A.A large salad and a large ice cream.
B.A large chicken burger and a small cup of tea.
C.A small vegetable burger and a large chocolate.
D.A large hamburger and a small cup of coffee.
3.Jam is a kind of _____.
A.main meals B.side dishes C.sweets D.drink
4.Which is not mentioned in the menu?
A.Coffee B.Fries C.Hamburger D.Wine
5.A thirsty boy will probably ask for_____.
A.coca cola B.salad C.fries D.a chicken burger