Two main accounting principles used in accrual accounting are matching and full closure.

America is a country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly-up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.

It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercises. Growing publicity (宣专) for races held in American cities helped fuel a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally rewarding and sometimes safer forms of exercise, such as walking and swimming, running remain the most popular forms of exercise.

As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously (强有力地) enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times of more a week will produce considerable improvements in physical health in about three months.

According to the passage, what was the percentage of American adults doing regular physical exercises two years ago? ( )

A．About 70%.

B．Nearly 60%.

C．Almost 50%.

D．More than 12%.

听力原文： America is a country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly, up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active. It is not hard to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercise. Growing publicity for races held in American cities helped fuel a strong interest in the ancient sport of running. Although running has levelled off in recent years as Americans have discovered equally rewarding and sometimes safer forms of exercise, such as walking and swimming, running remains the most popular form. of exercise. As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three or more times a week will produce considerable improvements in physical health in about three months. Questions 16 to 18 are based on the passage you have just heard. 16. According to the passage, what was the percentage of American adults doing regular physical exercises two years ago? 17. What can be learnt about the health benefits of exercise from the passage? 18. Which would be the best title for the passage?17．

A．They are self-evident.

B．They are yet to be proved.

C．They are to be further studied.

D．They are supported by scientific evidence.

I find it annoying and funny when I think about how we use protective or decorative wrappings (装饰性包装) in this country.

When I come home from the supermarket and start to unpack, I am always shocked at the layers of wrappings we cover our food with.

There is hardly anything we buy that doesn't come in at least two wrappings, and then several of them are gathered by the shop assistant and put into a small bag. Then several of the small bags are grouped together and put into a big bag. If you have several big bags with small bags in them, they give you a cardboard box to put the packages-in-the-little-bags-in-the-big-bags in.

A lot of things we buy wouldn't really need any protective wrapping at all. The skin of an orange protects an orange pretty well for most of its natural life, but we aren't satisfied with what nature has given it. We wrap them in plastic or put them in a net bag, and then in a paper bag. The orange inside the skin, inside the plastic which is in the paper bag, must wonder where it is.

A box of biscuits often has waxed paper(蜡纸) next to the biscuits, a cardboard box holding the food and then a decorative wrapping around it.

A relative of ours bought a new sofa recently because she liked the fine leather (皮革) it was covered with. She liked it so much she didn't want it to get dirty, so she bought a cloth cover to put over it.

We may never again see the leather she's protecting.

According to the author, the use of protective wrappings______.

A．can be wasteful and unnecessary

B．makes everything look funny

C．gives people more work to do

D．is a practice against natural life

I find it annoying and funny when I think about how we use protective or decorative wrappings (装饰性包装) in this country.

When I come home from the supermarket and start to unpack, I am always shocked at the layers of wrappings we cover our food with.

There is hardly anything we buy that doesn't come in at least two wrappings, and then several of them are gathered by the shop assistant and put into a small bag. Then several of the small bags are grouped together and put into a big bag. If you have several big bags with small bags in them, they give you a cardboard box to put the packages-in-the-little-bags-in-the-big-bags in.

A lot of things we buy wouldn't really need any protective wrapping at all. The skin of an orange protects an orange pretty well for most of its natural life, but we aren't satisfied with what nature has given it. We wrap them in plastic or put them in a net bag, and then in a paper bag. The orange inside the skin, inside the plastic which is in the paper bag, must wonder where it is.

A box of biscuits often has waxed paper(蜡纸) next to the biscuits, a cardboard box holding the food and then a decorative wrapping around it.

A relative of ours bought a new sofa recently because she liked the fine leather (皮革) it was covered with. She liked it so much she didn't want it to get dirty, so she bought a cloth cover to put over it.

We may never again see the leather she's protecting.

According to the author, the use of protective wrappings______.

A．can be wasteful and unnecessary

B．makes everything look funny

C．gives people more work to do

D．is a practice against natural life

B

I find it annoying and funny when I think about how we use protective or decorative wrappings ' (装饰性包装)in this country.

When I come home from the supermarket and start to unpack, I am always shocked at the lay-ers of wrappings we cover our food with.

There is hardly anything we buy that doesn ' t come in at least two wrappings, and then several of them are gathered by the shop assistant and put into a small bag. Then several of the small bags are grouped together and put into a big bag. If you have several big bags with small bags in them, they give you a cardboard box to put the packages-in-the-little-bags-in-the-big-bags in.

A lot of things we buy wouldn ' t really need any protective wrapping at all. The skin of an or-ange protects an orange pretty well for most of its natural life , but we aren ' t satisfied with what na-ture has given it. We wrap them in plastic or put them in a net bag, and then in a paper bag. The orange inside the skin, inside the plastic which is in the paper bag, must wonder where it is.

A box of biscuits often has waxed paper(蜡纸) next to the biscuits, a cardboard box holding the food and then a decorative wrapping around it.

A relative of ours bought a new sofa recently because she liked the fine leather (皮革)it was covered with. She liked it so much she didn ' t want it to get dirty, so she bought a cloth cover to put over it.

We may never again see the leather she' s protecting.

60. According to the author, the use of protective wrappings_______- .

[A] can be wasteful and unnecessary

[B] makes everything look funny

[C]gives people more work to do

[D] is a practice against natural life

The FIRST step to take in fighting an engine room fire resulting from a ruptured fuel oil service line, is to _____.

A.evacuate all engine room personnel

B.fight the fire with hand portable extinguishers

C.activate the main CO2 bank

D.stop the flow of leaking fuel oil