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What We Need in Our Diet

The primary consideration in achieving a balanced diet is now how much or how little we eat, but what we eat. Basically we need carbohydrates, protein, fat, vitamins and minerals, together with regular but not excessive exercise.
Carbohydrates are found in foods such as bread, potatoes and sugar. They are excellent energy products, but if eaten to excess may be largely converted to fat and a reduction in the amount of carbohydrates or "starchy: foods is one of the obvious ways to reduce weight, since most of us eat too much of them anyway.
Protein, found in meat and cheese, is used for tissue building and in the developed countries most people eat about 110g daily, which is a good deal more than the recommended minimum of 70g a day. Animal fats, e. g. butter are also good sources of energy, but are sometimes held to caus increased cholesterol levels in the blood (which may lead to fatty deposits in the a
A. avoiding taking in animal fat.
B. reducing the amount of carbohydrates.
C. not taking in excessive vitamins.
D. taking in enough iron.

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[单项选择]

What We Need in Our Diet

The primary consideration in achieving a balanced diet is now how much or how little we eat, but what we eat. Basically we need carbohydrates, protein, fat, vitamins and minerals, together with regular but not excessive exercise.
Carbohydrates are found in foods such as bread, potatoes and sugar. They are excellent energy products, but if eaten to excess may be largely converted to fat and a reduction in the amount of carbohydrates or "starchy: foods is one of the obvious ways to reduce weight, since most of us eat too much of them anyway.
Protein, found in meat and cheese, is used for tissue building and in the developed countries most people eat about 110g daily, which is a good deal more than the recommended minimum of 70g a day. Animal fats, e. g. butter are also good sources of energy, but are sometimes held to caus increased cholesterol levels in the blood (which may lead to fatty deposits in the a
A. carbohydrates and protein.
B. carbohydrates and animal fats.
C. protein and animal fats.
D. animal fats and vitamins.

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[填空题] Researchers stress that we need diet and exercise to drop pounds. "The most 【26】 way to lose weight is with a combination," says Rena Wing, head of the National Weight Control Center. 【27】 experts also admit that many 【28】 losers find it helps to 【29】 on one or the other. "A lot of people feel helpless at the thought of 【30】 everything — diet, lifestyle," says Bess Marcus, professor of human behavior at Brown University Medical School. "So ask yourself, ’’【31】 do I want to start What am I willing to focus on ’’ " The 【32】 depends on everything from what you hope to 【33】 to how your life is 【34】. If you are in a big hurry to drop pounds 【35】, dieting is the way to go. Decades of 【36】 have shown it’’s the surest and quickest method. If you are more 【37】 with how you look than with numbers on the scale, though, 【38】 may be the way to go. By increasing physical activity, you’’ll 【39】 fat and build muscle tissue. 【40】 often end up losing both fat and muscle tissue. Your 【41
A. A．summary
B．research
C．inspection
D．survey

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