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2015年職稱英語(yǔ)考試衛(wèi)生類補(bǔ)全對(duì)話(匯總)
Vitamins
Vitamins are organic compounds which are present in certain foods and are essential to the health of men and other animals.__1__.Without these substances,the breakdown and absorption of foods could not occur.Certain vitamins participate in the formation of blood cells,hormones,nervous system chemicals,and genetic materials.__2__.Fat-soluble vitamins include vitamins A,D,E and K.The water-soluble vitamins include vitamin C and the B-vitamin complex.
Fat-soluble vitamins are usually absorbed with foods that contain fat.Excessive amounts of these vitamins are stored in the body's fat,the liver and kidneys.Because fat-soluble vitamins can be stored,they do not have to be consumed every day.
__3__.A deficiency of vitamin A leads to skin changes and night blindness,or failure of the eye to adapt to the dark.Vitamin A can be obtained directly from foods of animal origin such as milk,eggs,and liver.__4__.
Vitamin D acts muck like a hormone and regulates calcium and phosphorus absorption and metabolism.Some vitamin D is obtained from such foods as eggs,fish,liver,butter,and milk.But humans get most of their vitamin D from exposure of the skin to sunlight.A deficiency of vitamin D leads to bone problems.
The role of vitamin E in the human body has not been established.——__5__ Vitamin E is found in seed oil and wheat.
Vitamin K is necessary for the clotting of blood.It is produced in sufficient quantities by bacteria in the intestine,but is also provided by leafy green vegetables and eggs.
The water-soluble vitamins,C and B complex,cannot be stored and therefore need to be consumed daily to satisfy the body's needs.Vitamin C is important in the formation and maintenance of connective tissue.It protects gums,skin,and mucous membranes.It is mainly found in fruits like oranges.
B-complex vitamins serve a wide range of important metabolic functions and prevent some diseases.They are found mostly in the liver.
A.Vitamins are classified into two groups,that is,the fat-soluble（溶解脂肪的)and the water-soluble（溶解水的)vitamins.
B.Their functions are mainly to enhance the metabolism（新陳代謝)of proteins and fats.
C.It is necessary for a healthy life.
D.Vitamin A is essential for normal growth and for the health of epithelial cells.
E.It has been popularly advocated for a great variety of diseases,but no clear evidence exists that it eases any specific disease.
F.Vitamin A can also be obtained through eating green and yellow fruits and vegetables
標(biāo)準(zhǔn)答案：BADFE
1.B.B中的Their與前句中的Vitamins呼應(yīng)；而后句的句意（沒有這些物質(zhì),食物的碎化和吸收就不能進(jìn)行。)揭示前句的內(nèi)容應(yīng)該是在談?wù)揤itamins的“好處”,同時(shí)B中metabolism與后句中提到的“食物的碎化和吸收”呼應(yīng)。
2.A.A在句意上總領(lǐng)后面兩句：后面兩句分別是在對(duì)fat-soluble（溶解脂肪的)vitamins 和 water-soluble（溶解水的) vitamins進(jìn)行解釋。
3.D.該段的核心詞（反復(fù)出現(xiàn)詞)是vitamin A,而后句談到vitamin A缺乏會(huì)造成的問題。在句意上與后句句意相關(guān)：一正（功效)一反（缺乏的后果)。
4.F.前句說到Vitamin A能如何被獲得,而F在句意上與之相呼應(yīng)：談及Vitamin A“還能”怎樣被獲得。
5.E.空格前句說vitamin E在人體中的功能還沒有被確認(rèn),后句說vitamin E在哪里能找到,同C相比,E更合理：E的句意也是表明vitamin E的“不確定的”功效,在句意上前后承接,而C只是籠統(tǒng)的說vitamin E是有必要的。
