Running an electric winch at slow speed over a long period of time causes ______．A.the spe

What is LEAST likely to cause ignition of fuel vapors ________．

A.Static electricity

B.An open running electric motor

C.Loose wiring

D.Explosion proof lights

Which of the following is least likely to cause the ignition of fuel vapors？

A.Static electricity

B.An open running electric motor

C.Loose wiring

D.Explosion proof lights

A Sales Letter

Jilin Electric Appliances Import & Export Corp.

Changchun, China

March 7, 2006

Smith Trading Co.

New York

U.S.A.

Dear Sirs,

We appreciate very much your confidence in the range of our electric appliances.

There is an exceptionally high demand for electric heaters owing to the cold weather during the season. The brand you ordered is now out of stock. However, the manufacturer has promised us a further supply by the end of this month if you could wait until then, we would deliver promptly the goods you need.

For over fifty years, our company has manufactured electric products which have enjoyed increasing markets in many countries and has built a reputation for service and quality. We are committed to being the best appliance supplier in some areas. Under separate cover, we send you our latest sample book of similar electric items we have recently produced. As one of our regular customers, you will be allowed a special discount of 2.5% provided we could receive your order before March 20th.

We stand ready to serve you--and welcome your call.

Sincerely yours,

×××

1. What are they thankful for？

They are thankful for (56) in the range of their electric appliances.

2. What causes the running short of the electric heaters？

It is mainly (57) .

3. What is their company famous for？

It is famous for its (58) .

4. What does this company send to its customers recently？

The company sends (59) .

5. On what condition can their customer be offered a special discount of 2.5%？

The customers can be offered a special discount on the condition that the company can (60) before March 20th.

Local councils in Britain encourage certain aspects of green living，such as recycling paper，tin，plastic and glass. They want to reduce the amount of rubbish going into landfill sites(填埋场)，because they are running out of places to dump(倾倒)rubbish. In some areas rubbish for recycling is collected from your doorstep，but in other areas，you have to take it to a special recycling place，such as a bottle bank.

Another way of reducing the amount of rubbish you create is to use reusable products instead of disposable ones. For example，some people use strong shopping bags or boxes for their groceries instead of plastic carrier bags，or use washable nappies instead of disposables.

More people are becoming interested in reducing their carbon footprint-the amount of carbon they use up. They try to reduce their carbon emissions(释放)by cycling，using public transport or an electric car，rather than driving gas-consuming vehicles. Some people choose not to fly for holiday trips because planes are the biggest producers of carbon emissions.

You can make“green”choices when buying food too. It's best to buy food which was locally grown or produced so that it hasn't been imported by air，or shipped by road from far away.

Houses can be environmentally friendly too. It takes less energy to heat a house if it has good insulation(绝缘，隔热)and double glazing(双层玻璃). You can also create your own energy if you have solar panels or a wind turbine fitted though these can be expensive. You can also save water by using a rain water container for washing the car or watering the garden. It's even possible to use a system where“grey water”-water which has been through a tap(水龙头)once already，is used to flush(冲洗)toilets. Some new housing projects are being built specifically to be as environmentally friendly as possible.

The purpose of collecting reusable wastes is to______.

A．save energy consumed in daily life

B．reduce the amount of rubbish dumped

C．create a new way of green living

D．decrease the amount of carbon produced

Passage Two

Questions 26 to 30 are based on the following passage.

We all know that humans are damaging the environment, but what can we do about it？ Some people are trying to do their bit to be more environmentally friendly.

Local councils in Britain encourage certain aspects of green living, such as recycling paper, tin, plastic and glass. They want to reduce the amount of rubbish going into landfill sites（填埋场），because they are running out of places to dump（倾倒）rubbish. In some areas rubbish for recycling is collected from your doorstep, but in other areas, you have to take it to a special recycling place, such as a bottle bank.

Another way of reducing the amount of rubbish you create is to use reusable products instead of disposable ones For example, some people use strong shopping bags or boxes for their groceries instead of plastic carrier bags, or use washable nappies instead of disposables.

More people are becoming interested in reducing their carbon footprint—the amount of carbon they use up. They try to reduce their carbon emissions（释放）by cycling, using public transport or an electric car, rather than driving gas-consuming vehicles. Some people choose not to fly for holiday trips because planes are the biggest producers of carbon emissions.

You can make‘green’ choices when buying food too. It's best to buy food which was locally grown or produced so that it hasn't been imported by air, or shipped by road from far away.

Houses can be environmentally friendly too. It takes less energy to heat a house if it has good insulation（绝缘，隔热）and double glazing (双层玻璃）．You can also create your own energy it you have solar panels or a wind turbine fitted though these can be expensive. You can also save water by using a rain water container for washing the car or watering the garden. It's even possible to use a system where‘grey water’—water which has been through a tap（水龙头）once already, is used to flush（冲洗）toilets. Some new housing projects are being built specifically to be as environmentally friendly as possible.

26．The purpose of collecting reusable wastes is to＿．

A．save energy consumed in daily life

B．reduce the amount of rubbish dumped

C．create a new way of green living

D．decrease the amount of carbon produced

基本电节律(basal electric rhythm，BER)

It was well known that Thomas Edison _____ the electric lamp.

A.discovered

B.invented

C.found

D.developed

A.电的

B.动力

C.中立的