10.Health experts have long known that vitamin D is important for healthy bones and teeth.It may also help to protect the body against diseases such as diabetes and cancer.And now,researchers say vitamin D might help fight brain diseases called dementias(癡呆).
Dementias are brain diseases that damage thinking and memory processes,what scientists call"cognitive abilities."Dementias are difficult to treat.Taking care of someone who has dementia is extremely demanding.And the disease is very frightening to sufferers.Chris Roberts suffers from dementia.He says the worst part of living with this disease was getting lost while driving."The worst thing that I found was getting lost in the car,not just forgetting where I was going-I wouldn't know where I was."More than 47million people around the world suffer from dementia.The World Health Organization reports that 60percent of them live in low-and middle-income countries.
We get vitamin D from some foods like nuts,lentils and fatty fish.We also get vitamin D from the sun.But that is not dependable.In some parts of the world,there is not enough sunlight to provide enough vitamin D.Also,sunblock substances prevent the vitamin from entering the body.To add to the problem,the skin's ability to process vitamin D weakens as a person ages.
Researchers at Rutgers University in New Jersey are exploring the relationship between vitamin D and dementia.The team recently measured vitamin D levels and cognitive ability in older people.Nutritional sciences professor Joshua Miller led the team.He said cognitive abilities differed among the study subjects.He said tests showed that about 60percent of the group was low in vitamin D.
32.Which of the following is not true about vitamin D?C
A.Vitamin D is in foods like nuts and fatty fish.
B.Vitamin D helps the body fight against cancer.
C.Vitamin D can decrease people's risk of heart diseases.
D.Vitamin D is important for keeping bones and teeth healthy.
33.What does the underlined word"demanding"mean in Paragraph 2?B
A.Boring but rewarding
B.Hard and tiresome.
C.Disgusting and stressful.
D.Disturbing and frightening.
34.What does Paragraph 3mainly talk about?A
A.Where people get vitamin D.
B.How vitamin D affects people's health.
C.Whether sunlight can produce vitamin D.
D.Why people's age influence the production of vitamin D.
35.Where can we most probably read the passage?D
A.In a commercial advertisement.
B.In a literature magazine.
C.In a travel brochure.
D.In a science journal.
分析 短文主要講了科學(xué)研究發(fā)現(xiàn),維生素D不僅對于預(yù)防肥胖和癌癥等疾病有效果,還對癡呆癥有效果.
解答 32.C,細節(jié)理解題,根據(jù)句子Health experts have long known that vitamin D is important for healthy bones and teeth.It may also help to protect the body against diseases such as diabetes and cancer.And now,researchers say vitamin D might help fight brain diseases called dementias可知,維他命D不能減少人們得心臟病的風(fēng)險,故答案為C.
33.B,詞義猜測題,根據(jù)前一句Dementias are difficult to treat,癡呆癥是很難治療的,可以推測此處說的是照顧有癡呆癥的人是非常困難以及累人的,故答案為B.
34.A,段落大意題,從第三段的第一句We get vitamin D from some foods like nuts,lentils and fatty fish可以,這一段主要講的是我們的維生素D是從哪里獲得的,故答案為A.
35.D,推理判斷題,短文主要講了科學(xué)研究發(fā)現(xiàn),維生素D不僅對于預(yù)防肥胖和癌癥等疾病有效果,還對癡呆癥有效果,因此短文可能是來自于科學(xué)雜志,故答案為D.
點評 解答任務(wù)型閱讀理解題,首先對原文材料迅速瀏覽,掌握全文的主旨大意.因為閱讀理解題一般沒有標題,所以,速讀全文,抓住中心主旨很有必要,在速讀的過程中,應(yīng)盡可能多地捕獲信息材料.其次,細讀題材,各個擊破.掌握全文的大意之后,細細閱讀每篇材料后的問題,弄清每題要求后,帶著問題,再回到原文中去尋找、捕獲有關(guān)信息.最后,要善于抓住每段的主題句,閱讀時,要有較強的針對性.對于捕獲到的信息,要做認真分析,仔細推敲,理解透徹,只有這樣,針對題目要求,才能做到穩(wěn)、準.