1. mortalityn. 死亡率
2. fracturen. 破裂, 骨折;v. (使)破碎, (使)破裂
3. congestiveadj. 充血的
4. diabetesn. [医] 糖尿病, 多尿症
5. evolutionn. 进展, 发展, 演变, 进化
6. bone fractures 骨折
7. bone mineral density 骨密度
8. immune system 免疫系统
9. cell differentiation 细胞分化
【Section Three】Homework
1. Please translate the blue sentence into Chinese.
"Not only does it promote calcium absorption and bone maintenance, but vitamin D also appears to stimulate the immune system, inhibit cellular proliferation and spur cell differentiation."
2. What is the main idear of this Article?
3. A intake of how many vitamin D a day is safe from the current study?
4. The article mentioned "Researchers found, people who took daily vitamin D supplements were 7% more likely to die during the study — from any cause — than people who didn‘t." Right?
参考答案:
1. 维生素D不仅能促进钙的吸收、骨骼的保养，还能激活免疫系统、抑制细胞扩散、刺激细胞分化。
2. No standard answer.
3. The current study shows that an intake of up to 800 IU a day is safe.
4. False!You can find the correct answer in the first paragraph. Not "more", but "less".
Text: "Overall, researchers found, people who took daily vitamin D supplements were 7% less likely to die during the study — from any cause — than people who didn‘t."
