2 . Petrol and diesel (柴油）cars may still dominate our roads, but their days are numbered. A recent university study found that current electric cars could be used for 87 per cent of daily car journeys in the US. That figure could rise to 98 per cent by 2020.

One hurdle to the widespread adoption of electric cars has been ‘range anxiety’ — drivers’ concerns about running out of juice on a journey. While petrol stations are conveniently located across national road systems, the necessary network of electric charging stations is still being developed. That said, charging points are becoming increasingly common throughout the USA.

Attitudes towards electric vehicles have changed quite considerably over the last few years. Not that long ago, electric cars were met with distrust, and their large price tags（标签） drove customers away. Thanks to improvements in battery capacity, recharging times, performance and price, the current generation of electric cars are starting to persuade critics. Plug-in cars will soon give internal combustion（燃料） engine models a run for their money.

As well as advancements on the road, electric vehicles are taking to the seas and skies. Electric boats are among the oldest methods of electric travel, having enjoyed several decades of popularity from the late 19th to the early 20th century before petrol-powered outboard motors took over. Now, the global drive for renewable energy sources is bringing electric boats back. Steps towards electric air travel are also being made, with Airbus and NASA among the organizations developing and testing battery powered planes. The experiments could soon make commercial electric flight a reality.

Electric vehicles do not produce any emissions. Were the US to act on the study’s findings and replace 87 per cent of its cars with electric vehicles, it would reduce the national demand for petrol by 61 per cent. However, because of the production processes and the generation of electricity required to charge these vehicles, they cannot claim to be completely emission-free. That said, as many countries continue to increase their use of renewable energy sources, electric vehicles will become even cleaner.

1. Which is the best title for this passage?

A．My Dream Car	B．History of Electric Cars
C．Problems with Petrol Cars	D．Driving into the Future

2. As used in Paragraph 2, the underlined word “hurdle” means _______.

A．aim	B．barrier
C．consequence	D．step

3. In the past, why did many people refuse to buy the electric cars?

A．They were expensive.

B．They were very poorly made.

C．They were not widely promoted.

D．They couldn’t travel at a high speed.

4. What is the function of Paragraph 4?

A．To introduce the history of electric travel.

B．To explain why the world needs more electric cars.

C．To show why more people have interest in electric cars.

D．To describe different ways electric vehicles can be used.

3 . 听下面一段较长对话，回答以下小题。
1. What is the weather like now?

A．Foggy.

B．Sunny.

C．Windy.

2. Where are the speakers?

A．At a hotel.

B．At an airport.

C．At a taxi station.

4 . How does the man go to work today?

A．By bus.

B．By taxi.

C．On foot.

5 . Grey clouds move as low as smoke over the treetops at Lolo Pass. The ground is white. The day is June 10.It has been snowing for the past four days in the Bitterroot Mountains. Wayne Fairchild is getting worried about our trek over the Lolo Trail-95 miles from Lolo Montana to Weippe in Idaho, across the roughest country in the West. Lewis and Clark were nearly defeated 200 years ago by snowstorms on the Lolo. Today Fairchild is nervously checking the weather reports. He has agreed to take me across the toughest, middle section of the trail.

When Lewis climbed on top of Lemhi Pass,140 miles south of Missoula, on Aug.12,1805,he was astonished by what was in front of him; “high mountain chains still to the West of us with their tops partially covered with snow.” Nobody in what was then the US knew the Rocky Mountains existed, with peaks twice as high as anything in the Appalachians back East.

Today their pathway through those mountains holds more attraction than any other ground over which they traveled, for its raw wilderness is an evidence to the character of two cultures: the explorers who braved its hardships and the Native Americans who prize and conserve the path as a sacred (神圣的)gift. It remains today the same condition as when Lewis and Clark walked it.

The Lolo is passable only from July to mid-September. Our luck is holding with the weather, although the snow keeps getting deeper. As we climb to Indian Post Office, the highest point on the trail at 7,033 ft, we have covered 13 miles in soft snow, and we hardly have enough energy to make dinner. After a meal of chicken, I sit on a rock on top of the ridge (山脊）.There is no light visible in any direction, not even another campfire. For four days we do not see another human being. We are occupied with the things that mix fear with joy. In our imagination we have finally caught up with Lewis and Clark.

1. We learn from the text that before 1805          .

A．The Rocky Mountains were wholly covered with snow

B．there were no people living in the western part of America

C．no Americans knew of the existence of the Rocky Mountains

D．the Appalachians were the western frontier of the United States

2. We learn from the text that the Lolo Pass            .

A．has changed a lot since 1805

B．is the meeting point of three cultures

C．remains much the same as it was 200 years ago

D．now attracts a large number of tourists to visit

3. Judging from the text, Lewis and Clark were most probably            .

A．two native Indians

B．explorers of the early 19th century

C．merchants who did business with the Indians

D．travelers whose curiosity took them over the Lolo Pass

4. We can infer from the text that when crossing the Lolo Pass the author            .

A．was attempting the impossible

B．was trying to set a world record

C．was following the trail of Lewis and Clark

D．was fighting with weather and taking unnecessary risks

6 . Bicycle Safety

Operation  Always ride your bike in a safe, controlled manner on campus. Obey rules and regulations. Watch out for walkers and other bicyclists, and always use your lights in dark conditions.

Theft Prevention Always securely lock your bicycle to a bicycle rack---even if you are only away for a minute. Register your bike with the University Department of Public Safety. It's fast, easy, and free. Registration permanently records your serial number, which is useful in the possible recovery of the bike stolen.

Equipment.

Brakes  Make sure that they are in good working order and adjusted properly.

Helmet A necessity, make sure your helmet meets current safety standards and fit properly.

Lights Always have a front headlight---visible at least 500 feet in front of the bike. A taillight is a good idea.

Rules of the Road

Riding on Campus  As a bicycle rider, you have a responsibility to ride only on streets and posted bicycle paths. Riding on sidewalks or other walkways can lead to a fine. The speed limit for bicycles on campus is 15mph, unless otherwise posted. Always give the right of ways to walkers. If you are involved in an accident, you are required to offer appropriate aid, call the Department of Public Safety and remain at the scene until the officer lets you go.

Bicycle Parking Only park in areas reserved for bikes. Trees, handrails, hallways, and sign posts are not for bicycle parking, and parking in such posts can result in a fine.

If Things Go Wrong

If you break the rules, you will be fined. Besides violating rules while riding bicycles on campus, you could be fined for:

No bicycle registration---------------------------------------------------$25

Bicycle parking banned--------------------------------------------------$30

Blocking path with bicycle ---------------------------------------------$40

Violation of bicycle equipment requirement -------------------------$35

1. Registration of your bicycle may help you _____________.

A．find y our stolen bicycle	B．get your serial number
C．receive free repair services	D．settle conflicts with walkers

2. According to the passage, what bike equipment is a free choice for bicycle riders?

A．Brakes.	B．A helmet.
C．A headlight.	D．A taillight.

3. When you ride a bicycle on the campus, ___________.

A．ride on posted bicycle paths and sidewalks

B．cycle at a speed of over 15 mph

C．put the walkers' right of way first

D．call the police before leaving in a case of accident

4. If you lock your bicycle to a tree on the campus, you could be fined _________.

A．$25	B．$30
C．$35	D．$40