第一节 (共15小题;每小题2分满分30分)
阅读下列短文从每题所给的四个选项(A、B、C和D)中选出最佳选项。
A
about vitamin C,but do you know why vitamin D is also important to your body?Experts from the Children's Hospital in Boston
Vitamin D can help bones and muscles grow strong and healthy.If a person is short of vitamin D,he or she may have problems like rickets(佝偻病)and osteoporosis.Rickets is mainly found in children.Osteoporosiscommon problem as people get older.
Studies in these years have found that vitamin D may also have other uses.If someone is short of vitamin D, he may have heart problems or die from some cancers.
The easiest way to get vitamin D is from sunlight.But many people worry about getting skin cancer and skin damage from the sun.Also, even skin color has an influence.Darker skinned people get less vitamin D than lighter skinned people.Older people get less vitamin D than younger people.You can also get it from foods.Some food such as cheese and egg yolks (蛋黄) have some vitamin D.But most of vitamin D in the American diet comes from food like milk with the vitamin added.
Now more doctors are testing for vitamin D in their patients.But some doctors worry that if people take too much vitamin D, it might be bad for their body.At the same time, skin doctors tell people to be careful with sunlight.
【2017届高三英语一轮检测题:必修1(北师大版)】相关文章:
★ 2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文:应试策略(含解析)
★ 2017高考四川省广安市英语阅读理解一轮系列训练:9(含解析)
★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练:5(含解析)
★ 【人教版】2014届高考英语一轮复习指导考点针对练:必修4 unit5《Theme parks》
★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ题型重组训练:第13组(含解析)
★ 2014届高考英语一轮复习课时作业(三十一)选修6Module 1《Small Talk》(外研版)
★ 2017高考四川省广安市英语阅读理解一轮系列训练:7(含解析)
★ 2017届高考英语二轮复习书面表达限时测验:4(含解析)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21