73.People with fair skin and freckles　　　　 .

A.seldom use sunscreen　　　　　　　　　　　　　　　 　　 B.are more in danger of skin cancer

be free from the harm of the sun　 　　　　 D.often expose themselves to the sun

72.The underlined word“flaws”in the 2nd paragraph most probably means　　　　 .

A.evidences　　　　　　　　　　 B.facts　　　　　　　　　　　　 C.faults　　　　　　　　 　　 D.failures

71.This passage is mainly about　　　　 .

A.energy-saving tips　　　　　　　　　　　 　　　　　　 B.fuel-saving tips

C.do it yourself tips　　　　　　　　 　　　　　　　　 D.environment-protecting tips

答案　 68.B　 69.C　 70.B　 71.A

Passage 17

(08·福建E篇)

A new study has found no evidence that sunscreen,commonly used to reduce the risk of skin cancer,actually increases the risk.

Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma(黑素瘤).They said that　 they　 found flaws in studies that had reported associ-

ations between sunscreen use and higher risk of melanoma.

Most health experts believe that by protecting the skin from the harmful effects of the sun,sunscreen helps prevent skin cancer,which is increasing in incidence(发生率)faster than any other cancer in the United States.

But questions have been raised about sunscreen and whether it may have the opposite effect,perhaps by allowing people to remain exposed to the sun longer without burning.

The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer-people with fair skin and freckles(雀斑)，for example-are more likely to use sunscreen.As a result,it may appear that sunscreen users get cancer more often.

The studies,which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied,said the new study.

70.According to the passage,you can save fuel by　　　　 .

A.using energy-efficient ceiling fans

B.sharing cars with others on workdays

C.turning off everything not in use

D.reducing 10% of your car trips every year

69.We can conclude from the passage that the author probably discourages　　　　 .

A.planting leafy trees around your home

B.turning off the ceiling fan before you leave your house

C.keeping your south-facing windows open during the day

D.using fluorescent bulbs instead of incandescent bulbs

68.According to the passage,the thermostat is used to　　　　 .

A.make rooms quieter　　　　　　　　　　　　　 　　　　trol room temperature

C.turn off the air conditioner　 　　　　　　　　 D.reduce room air pollution

64.The main idea of the passage is that 　　　　.

A.people can learn a lot from their failures

B.it is worthwhile to spend money on an old building

C.people should not judge things by their appearance

D.creative people can make the best of what they have

答案　 60.C　 61.A　 62.A　 63.C　 64.D

Passage 16

(08·福建D篇)

The global energy crisis is approaching.What can we do?Here are some steps you can take.

Cooling puts the greatest stress on your summer energy bill and the power grid(电网).Just as a tune-up for your car can improve your gas mileage,a yearly tune-up of your heating and cooling system can improve efficiency and comfort.Clean or replace filters monthly or as needed.

For central air conditioning systems and room air conditioners,look for the ENERGY STAR,the federal government’s symbol for energy efficiency.For central air,purchase the system with the highest possible Seasonal Energy Efficiency Ratio(SEER).

Use energy-efficient ceiling fans either alone or with air conditioning. Ceiling fans do a great job of circulating air.When used with air conditioning,fans allow you to raise the thermostat(恒温器) and cut costs.Ceiling fans cool people,not rooms,so before you leave,turn off the ceiling fan.

Let a programmable thermostat“remember for you”to automatically adjust the indoor climate with your daily and weekend patterns to reduce cooling bills by up to 10 percent.You can come home to a comfortable house without wasting energy and creating pollution all day while you are at work.

Try to make your home airtight enough to increase your comfort,make your home quieter and cleaner and reduce your cooling costs up to 20 percent.

Cut your air conditioning load,and reduce pollution by planting leafy trees around your home and fixing reflective bricks on your roof.

Close blinds or shades on south- and west- facing windows during the day,fix shading equipment to avoid heat build-up.

Turn off everything not in use:lights,TVs,computers.And use fluorescent bulbs(荧光灯)，which provide bright,warm light while using at least two-thirds less energy,producing 70 percent less heat and lasting up to 10 times longer than incandescent bulbs(白炽灯).

Drive the car that gets better gas mileage whenever possible if you own more than one vehicle.If you drive 12,500 miles a year,switching 10 percent of your trips from a car that gets 20 miles per gallon to one that gets 30 mpg will save you more than $65 per year.

uter(乘车上班族)could save about $260 a year by sharing cars twice a week with two other people in a car that gets 20.1 mpg-assuming the three passengers share the cost of gas.

63.It can be inferred from the passage that Yocum and Bell 　　　　.

A.benefited a lot from pulling down the roof

B.turned more old buildings into art galleries

C.got inspiration from decorating their old building

D.paid more attention to the outside of the art gallery

62.Working on the old building,Yocum and Bell 　　　　.

A.pulled rubbish out through the roof

B.removed the skylights from the bathroom

C.presented a slow-motion show in an art gallery

D.built a kitchen at the back part of the old building

61.Yocum bought the old building because 　　　　.

A.it was a bargain to him

B.it was still in good condition

C.it was located in the city center

D.it looked attractive from the outside