A California family drives a car that could help protect the environment. When Jon and Sandy go to the store or to their daughters’ soccer games, they drive in high-tech style. They drive a $1 million, fuel-cell-powered car. It may be the world’s most expensive car and one of the most environmentally friendly cars. The FCX is the first fuel-cell-powered car to be used by a family anywhere in the world. The FCX uses hydrogen and oxygen for fuel. Car makers have been working to develop vehicles that are better for the environment. They are developing cars that use fuel other than gasoline. And then what is fuel cell technology? Fuel cell technology works by changing the chemicals hydrogen and oxygen into water. This process produces electricity, and water vapor which comes out of the exhaust pipe. Most cars release dangerous gases such as carbon monoxide and carbon dioxide. Many scientists say these gases are major contributors to global warming. “The FCX is driven just like any other vehicle on the road, but without the gases which pollute the environment,” scientists say. Fuel cell technology has been around since the 1800s, but scientists have yet been to perfect it. They say it may take years before the technology is ready for widespread use. Another earth-friendly car is already on the market. Hybrid cars use both gasoline and an electric motor. They are becoming more popular with customers because they cut pollution and improve fuel efficiency.
46. Which of the following about the FCX is not true?
A. It may be the most expensive car in the world.
B. It is one of the most environmentally friendly cars.
C. It releases dangerous gases to pollute the air.
D. It uses hydrogen and oxygen for fuel other than gasoline.
47. According to the passage, what is the major cause for global warming?
A. Gases from FCX.                           B. Water vapor from cars.
C. Hydrogen and oxygen.            D. Gases from cars.
48. From the passage, we know that fuel cell technology ______.
A. works by water                       B. has a history for over two hundred years
C. works by electricity                 D. has been widely used since the 1800s
49. We can infer from the passage that ______.
A. future cars will be environmentally friendly
B. there will be no gasoline for cars
C. people can’t afford to buy cars in the future
D. global warming has been stopped
50. Hybrid cars are popular because ______.
A. they are the fuel-cell-powered cars
B. they are energy-saving and cut pollution
C. they are perfect cars in the world
D. they produce no gases to pollute the environment

A California family drives a car that could help protect the environment. When Jon and Sandy go to the store or to their daughters’ soccer games, they drive in high-tech style. They drive a $1 million, fuel-cell-powered car. It may be the world’s most expensive car and one of the most environmentally friendly cars. The FCX is the first fuel-cell-powered car to be used by a family anywhere in the world. The FCX uses hydrogen and oxygen for fuel. Car makers have been working to develop vehicles that are better for the environment. They are developing cars that use fuel other than gasoline. And then what is fuel cell technology? Fuel cell technology works by changing the chemicals hydrogen and oxygen into water. This process produces electricity, and water vapor which comes out of the exhaust pipe. Most cars release dangerous gases such as carbon monoxide and carbon dioxide. Many scientists say these gases are major contributors to global warming. “The FCX is driven just like any other vehicle on the road, but without the gases which pollute the environment,” scientists say. Fuel cell technology has been around since the 1800s, but scientists have yet been to perfect it. They say it may take years before the technology is ready for widespread use. Another earth-friendly car is already on the market. Hybrid cars use both gasoline and an electric motor. They are becoming more popular with customers because they cut pollution and improve fuel efficiency.
【小题1】Which of the following about the FCX is not true?

阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项。

　　A California family drives a car that could help protect the environment.

　　When Jon and Sandy go to the store or to their daughters' soccer games, they drive in high-tech style. They drive a $1 million, fuel-cell-powered car. It may be the world's most expensive car and one of the most environmentally friendly cars.

　　The FCX is the first fuel-cell-powered car to be used by a family anywhere in the world. The FCX uses hydrogen and oxygen for fuel.

　　Car makers have been working to develop vehicles that are better for the environment. They are developing cars that use fuel other than gasoline.

　　Fuel cell technology works by changing the chemicals hydrogen and oxygen into water. This process produces electricity, and water vapor which comes out of the exhaust pipe. Most cars release dangerous gases such as carbon monoxide (一氧化碳) and carbon dioxide. Many scientists say these gases are major contributors to global warming.

　　"The FCX is driven just like any other vehicle on the road, but without the gases which pollute the environment," scientists say.

　　Fuel cell technology has been around since the 1800s, but scientists have yet been to perfect it. They say it may take years before the technology is ready for widespread use.

Creating environmentally friendly cars

　　Another earth-friendly car is already on the market. Hybrid cars use both gasoline and an electric motor. They are becoming more popular with customers because they cut pollution and improve fuel efficiency.

(1) Which of the following about the FCX is not true?

[　　]

A．It may be the most expensive car in the world.

B．It is one of the most environmentally friendly cars.

C．It releases dangerous gases to pollute the air.

D．It uses hydrogen and oxygen for fuel other than gasoline.

(2) According to the passage, what is the major cause for global warming?

[　　]

A．Gases from FCX.

B．Water vapor from cars.

C．Hydrogen and oxygen.

D．Gases from cars.

(3) From the passage, we know that fuel cell technology ________.

[　　]

A．works by water

B．has a history of over two hundred years

C．works by electricity

D．has been widely used since the 1800s

(4) We can infer from the passage that ________.

[　　]

A．future cars will be environmentally friendly

B．there will be no gasoline for cars

C．people can't afford to buy cars in the future

D．global warming has been stopped

(5) Hybrid cars are popular because ________.

[　　]

A．they are the fuel-cell-powered cars

B．they are energy-saving and cut pollution

C．they are perfect cars in the world

D．they produce no gases to pollute the environment

Think about what you had for lunch: Was it a hamburger? A chicken sandwich? Barbecue? What about vegetables? Would it surprise you to learn that what you eat can affect the whole planet?

It can—in a big way. New studies show how food and its production affect the globe and its warming climate. You’ve probably heard of global warming : The temperature is on the rise because humankind has been releasing (排放) amounts of gases into the atmosphere. One of these greenhouse gases is carbon dioxide（二氧化碳）.

What does this have to do with food ? A big part of the carbon dioxide that we put in the atmosphere every year comes from the process of making and eating food. The production of meat contributes a lot of that carbon diode. And much of meat’s contribution comes from beef , which is responsible for releasing even more warming gases into the atmosphere.

The process of making a hamburger ,for example, requires a lot of energy. A cow has to be fed and raised on farmland, and cow waste is a major source of methane (沼气) — an especially powerful greenhouse gas. The cow has to be killed. The meat has to be processed (加工) and shipped to a shop, which takes fuel . Most of the cow won’t even be used for meat that people eat. By the time a hamburger finally lands on a dinner plate, it has made a heavy effect on the environment.

We can reduce the production of global-warming gases by eating less beef .Other kinds of meat like pork and chicken do less harm to the environment—at least in terms of the amount of greenhouse gases released. 

All kinds of meat are harder on the planet than vegetables. To grow and eat a pound of potatoes, for example, sends less than one-quarter pound of carbon dioxide into the air. So changing our diet to less meat and more vegetables, as it turns out, may do the world some good.

The questions asked in the first paragraph are used to _____.

A. show the author’s concern about food safety

B. express the author’s puzzlement at what to eat

C. remind readers of something delicious to eat

D. introduce the topic to be discussed in the passage

What is the bad news for meat-eaters?

A. Meat producing can cause global warming

B. Most cows are raised not for people to eat

C. There is a lot of carbon dioxide in meat

D. Animals begin to die off because of global warming

Which is the most environment-friendly food according to the passage?

  A. Beef                     B. Carrot               C. Pork                 D. Chicken

The author wrote the passage in order to _____.

  A. explain the importance of eating meat         B. advise people to keep a balanced diet

C. encourage people to choose a greener diet       D. introduce some healthy foods to people