题目内容
Our body can make some vitamins
（维生素）. When sunlight shines on the skin（皮肤）, the body produces Vitamin D. Some vitamins cannot be made or stored in the body. Vitamin C is an example. If a person doesn't take in any Vitamin C for a long time, a deficiency（缺乏）can develop in the body.Vitamins are now added to many foods so that people take in more vitamins. For example, Vitamin D is added to milk. Because of rich foods, today deficiency diseases are not as common as they once were.
Many people also take vitamin pills. Most vitamin pills contain
（包含）man-made vitamins, which are made in labs. Natural vitamins are found in foods. The vitamins that are added to natural foods are also man-made.In the future, scientists may discover several new vitamins. New uses may also be discovered for the known vitamins. Scientists are experimenting to find out if vitamins can cure
（治愈）or prevent diseases like cancer and heart disease. It may be that vitamins are even more important than we think.(1)Our body can make some vitamins if _____________.
[ ]
A
．we take much exerciseB
．the sun shines on our skinC
．we eat much rich foodD
．all of the above(2)Eating enough food full of Vitamin C can make us ____________.
[ ]
|
A ．taller |
B ．pretty |
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C ．fat |
D ．healthy |
(3)Vitamin pills are made ____________.
[ ]
A
．from all kinds of foodsB
．in the labC
．of fresh milkD
．from the sunlight(4)The scientists are working hard to _____________.
[ ]
A
．know whether vitamins can stop some illnessB
．make much more vitamin pillsC
．become well-known in the worldD
．help the patients who need Vitamin C(5)Which of the following is right according to the passage?
[ ]
A
．The vitamins that are added to natural foods are also natural.B
．If you want to be healthy, you'll have to eat more vitamin pills.C
．Vitamins are very important for our health.D
．We can take vitamin pills instead of natural vitamins to keep healthy.解析：
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(1) 根据文中When sunlight shines on the skin, the body produces Vitamin D.此句可知。(2) 由文章的第一段可知Vitamin C对身体健康很重要。(3) 由文中Most vitamin pills contain man-made vitamins, which are made in labs. Natural vitamins are found in foods.一句可知。(4) 由文中Scientists are experimenting to find out if vitamins can cure or prevent diseases like cancer and heart disease.一句可知。(5) 本文的主旨就是说明维生素重要。 |
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My mother used to ask me what the most important part of the body is. When I was 31 .1 thought music and talking were the most important things, so I said: “My 32 Mommy.”
foot C. hand
for just one night. I came for a treatment this morning from eastern shore, and there's no bus till next morning." He told me he had been hunting (寻找) but with no 44 . 1 told him we would find him a bed, but to rest on the porch (门廊). I went inside and prepared (准备) dinner. When we were ready, I asked him if he would like to 45 us. "No, thank you. I have plenty." When I had 46 the dinner, I went out to talk with him. It didn't take a long time to see that this old man had oversize (过大的) heart crowded that tiny body. He told me he fished for a living to 47 his daughter, her five children, and her husband, who was hopelessly disabled from a back injury. At bedtime, we 48 a bed in the children's room for him. On his next trip, as a gift, be brought a big fish and some fresh oysters (牡蛎) I had never seen. In the years he came to 49 overnight with us, and there was never a time he did not bring us some fish or vegetables from his garden.
C. educate D. support
and listening.They always have many 41 in their minds. When they are getting 42 , they begin to 43 story books, science books…anything they like. When they 44 something new，they love to ask questions and 45 to find out the answers.