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Drinking full-fat milk could lead to a longer life, because it can protect against strokes(中风), scientists have suggested. While conventional(传统的) diet advice has for decades said that skimmed(脱脂的) and semi-skimmed milk is much healthier for us than full-fat milk, a study suggests that the opinion may be wrong. Researchers found no significant link between dairy fats and heart disease and stroke, while it it believed that the two biggest killers are usually associated with dairy fats. In fact, certain types of dairy fats might actually help guard against a severe stroke, researchers reported.

It will be good news to people who prefer full-fat varieties of milk, butter and cheese to those with lower quantities of fat. Professor Marcia Otto of the University of Texas said, "Our findings not only support but also strengthen the evidences. These evidences show that the dairy fat does not increase the risk of heart disease." In addition to not contributing to death, the results suggest that the dairy fat may lower the risk of death from cardiovascular disease(心血管疾病), particularly from strokes.

1.What kind of milk can lead to a longer life?

A Skimmed and semi-skimmed milk.

B Skimmed milk.

C Semi-skimmed milk.

D Full-fat milk.

解析：选D。细节理解题。根据第一段第一句Drinking full-fat milk could lead to a longer life.可知喝全脂牛奶能预防中风，从而延长寿命，故选D。

2.What does the underlined word “significant ” mean in Chinese?

A 显著的.

B 其它的.

C 细微的.

D 相关的.

解析：选A。词义猜测题。根据第一段前后文可知乳制品中的脂肪与心脏病和中风之间没有显著关联，故选A。

3.From the passage we know that full-fat milk ______.

A is much healthier than skimmed and semi-skimmed milk

B is much more delicious than skimmed and semi-skimmed milk

C is less healthier than skimmed and semi-skimmed milk

D is less delicious than skimmed and semi-skimmed milk

解析：选A。推理判断题。根据第一段第二句While conventional diet advice has for decades said that skimmed and semi-skimmed milk is much healthier for us than full-fat milk, a study suggests that the opinion may be wrong.几十年来，传统饮食指南一直断言，脱脂和半脱脂牛奶比全脂牛奶更健康。然而，一项研究表明这种想法是错误的，所以应是全脂牛奶比脱脂和半脱脂牛奶更健康，故选A。

4.Which of the following is NOT true according to the passage?

A Full-fat milk can protect against strokes.

B Certain types of dairy fats might actually help guard against a severe stroke.

C The evidences show that the dairy fat does not increase the risk of heart disease.

D The dairy fat may increase the risk of death from cardiovascular disease.

解析：选D。细节理解题。根据全文最后一句In addition to not contributing to death, the results suggest that the dairy fat may lower the risk of death from cardiovascular disease, particularly from strokes.乳制品中的脂肪是降低患心血管疾病的风险，而不是增加风险，故选D。

5.What’s the best title of the passage?

A Full-fat milk is less healthy.

B Skimmed milk is more healthy.

C Full-fat milk will help you live a longer life.

D People prefer skimmed milk to full-fat milk.

解析：选C。C 文章标题题。本文主要讨论了全脂牛奶对人体的好处，即可以预防中风和心血管疾病，让人更健康长寿。故选C。