The food you eat does more than provide energy. It can have a dramatic effect on your body’s ability to fight off heart disease, cancer, diabetes, high blood pressure, stroke, and weak bones. With remarkable consistency, recent research has found that a diet high in plant-based foods--fruits, vegetables, dried peas and beans, grains, and starchy staples such as potatoes is the body’s best weapon in thwarting many health-related problems. These foods work against so many diseases that the same healthy ingredients you might use to protect your heart or ward off cancer will also benefit your intestinal tract and bones.Scientists have recently estimated that approximately 30 to 40 percent of all cancers could be averted if people ate more fruits, vegetables, and plant-based foods and minimized high-fat, high-calorie edibles that have scant nutritional value. Up to 70 percent of cancers might be eliminated if people also stopped smoking, exercised regularly, and controlled their weight. In the past, researchers had linked fat consumption with the development of cancers, but they currently believe that eating fruits, vegetables, and grains may be more important in preventing the disease than not eating fat. "The evidence about a high-fat diet and cancer seemed a lot stronger several years ago than it does now," says Melanie Polk, a registered dietitian and director of nutrition education at the American Institute for Cancer Research.The road to strong bones is paved with calcium-rich food. Leafy green vegetables and low-fat dairy products are excellent sources of calcium, the mineral that puts stiffness into your skeletal system and keeps your bones from turning rubbery and fragile. Your body uses calcium for more than keeping your bones strong. Calcium permits cells to divide, regulates muscle contraction and relaxation, and plays an important role in the movement of protein and nutrients inside cells. If you don’t absorb enough from what you eat to satisfy these requirements, your body will take it from your bones. Because your body doesn’t produce this essential mineral, you must continually replenish the supply. Even though the recommended daily amount is 1,200 mg, most adults don’t eat more than 500 mg. One reason may have been the perception that calcium-rich dairy products were also loaded with calories. "In the past, women, in particular, worried that dairy products were high in calories," says Letha Y. Griffin, M.D. , of Peachtree Orthopaedics in Atlanta. "But today you can get calcium without eating any high-fat or high-calorie foods by choosing skim milk or low-fat yogurt. " Also, low-fat dairy products contain phosphorous and magnesium and are generally fortified with vitamin D, all of which help your body absorb and use calcium. If you find it difficult to include enough calcium in your diet, ask your doctor about supplements. They’re a potent way to get calcium as well as vitamin D and other minerals. But if you rely on pills instead of a calcium-rich diet, you won’t benefit from the other nutrients that food provides. Getting the recommended vitamin D may be easy, since your body makes the vitamin when your skin is exposed to the sun’s rays. 45 Which of the following statements is NOT true().
A. Today you can get calcium without eating any high-fat or high-calorie foods by choosing skim milk or low-fat yogurt.
B. Calcium plays an important role in the movement of protein and nutrients inside cells.
C. You can rely on pills instead of a calcium-rich diet to take enough calcium.
D. If you want to absorb calcium, you should expose yourself to the sun’s rays.
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On April 20, 2000, in Accra, Ghana, the leaders of six West African countries declared their intention to proceed to monetary union among the non-CFA franc countries of the region by January 2003, as first step toward a wider monetary union including all the ECOWAS countries in 2004. The six countries (21) themselves to reducing central bank financing of budget deficits (22) 10 percent of the previous years government (23) ; reducing budget deficits to 4 percent of the second phase by 2003; creating a Convergence Council to help (24) macroeconomic policies; and (25) up a common central bank. Their declaration (26) that, "Member States (27) the need (28) strong political commitment and (29) to (30) all such national policies (31) would facilitate the regional monetary integration process. "The goal of a monetary union in ECOWAS has long been an objective of the organization, going back to its formation in 1975, and is intended to (32) broader integration process that would include enhanced regional trade and (33) institutions. In the colonial period, currency boards linked sets of countries in the region. (34) independence, (35) , these currency boards were (36) , with the (37) of the CFA franc zone, which included the francophone countries of the region. Although there have been attempts to advance the agenda of ECOWAS monetary cooperation, political problems and other economic priorities in several of the region’s countries have to (38) inhibited progress. Although some problems remain, the recent initiative has been bolstered by the election in 1999 of a democratic government and a leader who is committed to regional (39) in Nigeria, the largest economy of the region, raising hopes that the long-delayed project can be (40) . 39().
A. development
B. prosperity
C. integration
D. cooperation
On April 20, 2000, in Accra, Ghana, the leaders of six West African countries declared their intention to proceed to monetary union among the non-CFA franc countries of the region by January 2003, as first step toward a wider monetary union including all the ECOWAS countries in 2004. The six countries (21) themselves to reducing central bank financing of budget deficits (22) 10 percent of the previous years government (23) ; reducing budget deficits to 4 percent of the second phase by 2003; creating a Convergence Council to help (24) macroeconomic policies; and (25) up a common central bank. Their declaration (26) that, "Member States (27) the need (28) strong political commitment and (29) to (30) all such national policies (31) would facilitate the regional monetary integration process. "The goal of a monetary union in ECOWAS has long been an objective of the organization, going back to its formation in 1975, and is intended to (32) broader integration process that would include enhanced regional trade and (33) institutions. In the colonial period, currency boards linked sets of countries in the region. (34) independence, (35) , these currency boards were (36) , with the (37) of the CFA franc zone, which included the francophone countries of the region. Although there have been attempts to advance the agenda of ECOWAS monetary cooperation, political problems and other economic priorities in several of the region’s countries have to (38) inhibited progress. Although some problems remain, the recent initiative has been bolstered by the election in 1999 of a democratic government and a leader who is committed to regional (39) in Nigeria, the largest economy of the region, raising hopes that the long-delayed project can be (40) . 23().
A. finance
B. profit
C. income
D. revenue
On April 20, 2000, in Accra, Ghana, the leaders of six West African countries declared their intention to proceed to monetary union among the non-CFA franc countries of the region by January 2003, as first step toward a wider monetary union including all the ECOWAS countries in 2004. The six countries (21) themselves to reducing central bank financing of budget deficits (22) 10 percent of the previous years government (23) ; reducing budget deficits to 4 percent of the second phase by 2003; creating a Convergence Council to help (24) macroeconomic policies; and (25) up a common central bank. Their declaration (26) that, "Member States (27) the need (28) strong political commitment and (29) to (30) all such national policies (31) would facilitate the regional monetary integration process. "The goal of a monetary union in ECOWAS has long been an objective of the organization, going back to its formation in 1975, and is intended to (32) broader integration process that would include enhanced regional trade and (33) institutions. In the colonial period, currency boards linked sets of countries in the region. (34) independence, (35) , these currency boards were (36) , with the (37) of the CFA franc zone, which included the francophone countries of the region. Although there have been attempts to advance the agenda of ECOWAS monetary cooperation, political problems and other economic priorities in several of the region’s countries have to (38) inhibited progress. Although some problems remain, the recent initiative has been bolstered by the election in 1999 of a democratic government and a leader who is committed to regional (39) in Nigeria, the largest economy of the region, raising hopes that the long-delayed project can be (40) . 24().
A. coordinate
B. draft
C. ordinate
D. compromise
根据近20年来的详细调查,海洋里的动物大约有18万种,植物约2万种。这些丰富的海洋生物可为人类社会提供食物、药物和工业原料。其中已被人类开发利用的经济价值较大的鱼类400多种,贝类和甲壳类近百种,藻类70多种,仅占海洋生物种属的一小部分。目前,这些野生海产品的年捕捞量可达2亿吨以上,大约可生产2000多万吨蛋白质食品,对缓解人类食品短缺和补充人体营养起着举足轻重的作用。近几年来,在南北极的科学考察发现,极区海域的渔业资源极为丰富,特别是南极海域的磷虾资源,如加以合理开发,每年可捕捞近亿吨。更令人惊喜的是,近年来的深海考察发现,一直被认为是生命极限区(水深600米以下)的深海底也有生物存在,海洋里的生物资源目前难以估量,其开发前景十分广阔。 随着海洋科学技术的不断发展,80年代兴起的“海上牧场”,已经给人类的食物源带来了生机。据统计,1995年全世界共放牧了100亿尾海洋经济鱼,回捕量已达到1000多万吨。而目前放养的经济贝类,回捕量更是高得惊人,浅海网箱养殖业也正在蓬勃发展,并获得了好收成。海上人工养殖逐步走上了正轨,人类已从海上“猎人”转业为海上“牧民”,耕海牧鱼是21世纪的一大产业。 这段文字主要是谈的是:
A. 人体营养
B. 科学技术
C. 海洋资源
D. 鱼类养殖