题目内容
A kind of little cars may be seen in the streets in the future. People will like this kind of small cars better than the big ones. The car is as small as a bike. But it can carry two people in it. Everybody can drive it easily, just like riding a bike. Even children and old people can drive them to schools or parks.
If everyone drives such cars in the future, there will be less pollution in the air. There will be more space for all the cars in cities, and there will also be more space for people to walk in the streets.
The little cars of the future will cost less money to buy and to drive. These little cars can go only 65 kilometers an hour, so driving will be safer. The cars of the future will be fine for going around the city, but they will not be useful for a long trip.
This kind of cars can save a lot of gas. They will go 450 kilometers, then they have to stop for more gas.
They are nice cars, aren’t they?
1.If you drive this kind of little cars for four hours, you can probably go at most.
?
A.260 kilometers |
B.65 kilometers |
C.450 kilometers |
D.130 kilometers |
2.Why do these little cars have to stop after going 450 kilometers?
?
A.For more water. |
B.For more gas. |
C.To have a rest. |
D.To charge (充电) |
3. Which of the following statements is NOT true?
?
A.Driving big cars can make the air dirtier. ? |
B.The little cars can make more space for other cars and people. ? |
C.These little cars will be useful for a long trip. ? |
D.This kind of cars can save much gas. |
1.A
2.B
3.C
【解析】 略
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