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Flying has shrunk the world! It’s now possible to travel around the globe quickly and easily. Jumping on a plane and jetting off on holiday or a business trip is the norm for many of us, and with the rise of budget airlines, the number of people taking to the skies is increasing. But while air travel is costing us less, the cost to the environment is going up.

Climate change is something we’re all aware of now, and aviation companies know that some of the blame for this is being pointed at them. Last year airlines were forecasted to use about 97bn gallons of jet fuel.

But while we could think twice about taking a flight in the first place, particularly a short trip that could be made by train, technology might be the answer to reducing emissions and minimising the environmental damage.

Recent developments have focused on reducing the amount of fuel airliners(大型客机) burn. Making flying green and sustainable was the hot topic at the recent Dubai Air Show. There was talk of advances in engine technology, making them more efficient, and possibly using biofuel to power aircraft.

Rios Galvan, a bioenergy expert and professor at Khalifa University in Abu Dhabi, told the BBC that “these have the capacity to reduce the carbon footprint anywhere between 50-80 percent when you compare them to fuels.”

And Phil Curnock, chief engineer of the civil future programme at Rolls-Royce, also suggested that electric hybrid engines (混合动力发动机) could play a part for smaller aircraft, covering shorter distances. He says “it offers the possibility of a carbon-neutral flight for a limited range.”

Of course, aircraft manufacturers are constantly looking at ways to make their planes more fuel efficient. Boeing’s Dreamliner, for example, is already in operation and uses 25 percent less fuel per passenger compared with aircraft of a similar size. Other improvements include better aircraft aerodynamics (空气动力学), changes to ways aircraft taxi (滑行) on runways, and the use of lighter materials.

1.What can we infer from Paragraph 1?

A.The earth gets smaller.

B.Budget airlines become popular.

C.Flying is favorite among passengers.

D.Air travel can do harm to environment.

2.What does the underlined word “minimising” mean?

A.Lowering. B.Consolidating.

C.Weakening. D.Increasing

3.Which of the following is true, according to the passage?

A.Boeing’s Dreamliner is a green aircraft.

B.Biofuel is a necessity to power airliners.

C.Electric hybrid engines have their limitations.

D.Ways will be found to reduce fuel consumption.

4.How can aircrafts be made more fuel efficient?

A.By bettering runways. B.By making smaller aircrafts.

C.By using the lighter materials. D.By using aircraft aerodynamics.

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