Question

3．Different vitamins are found in different foods．Then which foods should be eaten to keep us healthy？Let's look at some important vitamins for the answer．

Vitamin A helps to protect skin from becoming dry．It is also helpful to the eyes．Without vitamin A，you cannot see well in darkness．Vitamin A is found in animal liver and yellow part of eggs．Sweet potatoes，carrots and other dark colored fruit and vegetables have something that the body can change into vitamin A．

Vitamin B changes foods into energy and helps the heart and nervous system（神經(jīng)系統(tǒng)） to work smoothly．Without it，we will be weak and will not grow．It is found in grains and other foods like beans，nuts，meat and fish． Vitamin B helps to produce red blood cells．It is found in foods like eggs，meat，fish，milk and green leafy vegetables．

Vitamin C is needed for strong bones and teeth，and for healthy blood vessels（血管）．It also helps wounds to heal（意合） quickly．The body stores little vitamin C，so we must get it in foods like oranges，and cabbage．

Vitamin D increases the levels of calcium（鈣） in the blood．Calcium is needed for verve and muscle（肌肉） cells to work normally，as well as to build strong bones．Fish liver oil has vitamin D．In some countries，milk producers add vitamin D to milk so that it will be good for children．

36．WithoutA，We cannot see will in darkness．
A．vitamin A      
B．vitamin B       
C．vitamin C       
D．vitamin D
37．According to the passage，vitamin B can be found inB．
A．fish liver oil                                
B．grains，meat and fish
C．milk and vegetables                     
D．a(chǎn)nimal liver and eggs
38．From the passage，we know that vitamin C is good forC．
A．the skin                                      
B．the heart
C．blood vessels                               
D．nerve and muscles
39．Some milk producers add vitamin D to milk mainly to help children toC．
A．have good eyesight                             
B．produce blood cells
C．get enough calcium                             
D．heal wounds quickly
40．According to the passage above，which of the following is"TRUE"？D
A．We can get vitamins from everything．
B．We can live healthily with few vitamins
C．Vitamins are not important to our health．
D．Different vitamins can help us in different ways．

Answer 1

分析 不同的食物中會發(fā)現(xiàn)不同的維生素，我們應(yīng)該吃哪些食物來保持健康呢？文中重點(diǎn)介紹維生素A、維生素B、維生素C和維生素D對人體保健的作用．

解答 36．答案：A．細(xì)節(jié)理解題，根據(jù)Without vitamin A，you cannot see well in darkness．可知：缺少維生素A，你就不能在黑暗中看得很清楚．故選：A．
37．答案：B．細(xì)節(jié)理解題，根據(jù)It is found in grains and other foods like beans，nuts，meat and fish．可知：維生素B可以在谷物和其他食物，如豆類，堅果，肉類和魚類中找到．故選：B．
38．答案：C．細(xì)節(jié)理解題，根據(jù)Vitamin C is needed for strong bones and teeth，and for healthy blood vessels（血管）．可知：維生素C對我們血管有好處．故選：C．
39．答案：C．細(xì)節(jié)理解題，根據(jù) Vitamin D increases the levels of calcium（鈣） in the blood．Calcium is needed for verve and muscle（肌肉） cells to work normally，as well as to build strong bones．可知：維生素D可以幫助孩子得到足夠的鈣．故選：C．
40．答案：D．推理判斷題，根據(jù)（1）Vitamin A helps to protect skin from becoming dry．（2）Vitamin B changes foods into energy and helps the heart and nervous system（神經(jīng)系統(tǒng)） to work smoothly．（3）Vitamin C is needed for strong bones and teeth，and for healthy blood vessels（血管）．（4）Vitamin D increases the levels of calcium（鈣） in the blood．Calcium is needed for verve and muscle（肌肉） cells to work normally，as well as to build strong bones．由此可以推斷出：不同的維生素在不同的方面幫助我們．故選：D．

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