Are we under-employed or overburdened with too many responsibilities Do we have a right balance of work and leisure(闲暇)in our lives Are our relationships with family, friends or-fellow workers all they should be
All these things can be a cause of stress, and it. is. best to face them honestly, and to bring our frustrations(失意)into the open.
People who have a good row and then forget it are doing their health more good than those who bottle their feelings.
If our self-examination has brought any causes of stress to light, let us consider what we can do about them. It is possible to change jobs. We can make more leisure and fill it more happily, if we will accept a different living standard. We can improve our personal relationships by a different attitude. It is we who allow other people to make ourselves unhappy. Often the little things that disturb us are not worth an hour’s anger. The teaching in the Bible “Let not the sun go down upon your w
A. Freedom from responsibilities helps reduce stress.
B. Stress is the direct cause of cancer.
C. The cause of stress is worthy of serious study.
D. Cancer is the number one killer in our society today.
Set 1
NORTH AMERICAN GRASSLANDS
1.In North America, native grasslands occur primarily in the Great Plains in the middle of the continent. The North American prairie biome is one of the most extensive grasslands in the world, extending from the edge of the Rocky Mountains in the west to the deciduous forest in the east, and from northern Mexico in the south to Canada in the north. Average annual rainfall ranges from about 40 cm (16 inches) in the west to 80 cm (31 inches) in the east. Average annual temperatures range between 10 degrees and 20 degrees Celsius (50 to 68 degrees Fahrenheit). In the moist regions of the North American grasslands, especially in the northern Great Plains, rainfall is distinctly seasonal, and temperatures can vary widely from very hot in summer to bitter cold in winter.
2.One hundred years ago, the Great Plains grasslands were one vast, unbroken prairie. Much of the prairie is now farmland, the m
A. It regulates carbon emissions from human activities.
B. It measures the amount of carbon dioxide in the ecosystem.
C. It collects and drains seasonal rainwater from the soil.
D. It removes carbon dioxide naturally from the atmosphere.
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