5. How can a person ensure enough Vitamin D in his/ her body?

A.He/ She could ask doctors for help.

B.He/ She should walk a long way in the sunlight.

C.He/ She should be exposed to sunlight for a long time.

D.He/ She should get it through sunlight, foods and supplements.

6. Which of the following is NOT the function of Vitamin D?

A.Preventing heart disease. B.Helping the body grow normally.

C.Producing calcium and phosphorous. D.Decreasing anxiety and nervousness.

7. Which is the best title of the passage?

A.Vitamin D Family. B.Vitamin D, You Need It.

C.Ways to get Vitamin D D.A Good Medicine --Vitamin D

Ⅱ.完形填空

　　阅读下面的短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

I was doing a big clean-up recently and my kids were helping. One of my sons 　1　a knotted handkerchief with an old dark brown coin inside, which immediately 　2　me of another time.

In 1991，I had spent five months in Niger，a hot African country. The climate and beggars were biggest and most 　3　complaints. Street beggars would continually shout"Gift! Gift!"

One day，a friend and I 　4　for neighboring Burkina to work in a health clinic. Arriving by taxi at our destination ,we began to 5　. I had a large backpack and a smaller daypack. Out of the darkness, a motorbike with two men approached slowly. Without 　6　,one of the men grabbed my daypack as the motorbike swept close by. Within seconds ,they were 　7　up by the night. The bag had my passport，money，and other things 8　to me. I was in deep trouble.

In the weeks that followed, I cautiously　9　the rest of my valuables and regarded all 　10　with suspicion. All I wanted was to leave this place. Then, walking through Burkina's streets one day，I met an old woman "Gift! Gift!" she cried. I'd had enough! I was 　11　of the country．Its poverty ,its thieves, and the heat, I told her 　12　，" I have no 'gift', I have no money. A thief stole all my money two weeks ago and now I can't get out of your country. I cannot give you 　13　. The beggar woman listened attentively. Then she smiled 　14　she reached into her dress.

"Then I will give you a 　15　," she announced．Kindly，she placed an old ,dark brown coin in my hand. I looked at it 　16　. It was small amount of money-but for this woman ,the coin represented a meal. In that moment ,I felt 　17　,Though poor, she was able to give me something priceless. I saw then the 　18　beauty of the people there and appreciated deeply the