12．"An apple a day keeps the doctor away"is one of the most common sayings in the English languages．This is because apples were one of the first foods that medical professionals recognized as healthy-their benefits became obvious when，quite simply，doctors found that people who ate apples were sick less often than those who did not．Today we have a more specific understanding of why apples are so beneficial to overall health．
Apples can help keep your levels of bad cholesterol （胆固醇） down．The pectin （果胶） in apples helps you to maintain cardiovascular health and reduce LDL cholesterol（which is the"bad"kind）．Apples themselves do not add cholesterol to your diet and are full of water and fiber to help prevent the cholesterol in other foods you might digest．According to Health Diaries，people who eat two apples per day may lower their cholesterol by as much as 16percent．
Apples are naturally low in calories and high in water content．Eating an apple can satisfy your hunger and keep you from reaching for high-sugar，high-calories snacks．By eating apples，you will be more able to maintain a healthy weight because they fill you up，potentially stopping you from eating food that encourages a waistline increase．
Apples contain respectable levels of boron （硼），which helps build healthy bones，and can also prevent diseases like arthritis．Apples are rich in vitamin C，which is known to help build immunity．
Studies have shown that apples can decrease the risk of breast cancer，colon cancer，and liver cancer．One theory is that the apple skins are responsible for this，so be sure not to peel your apple before you eat them，as you could remove some of the health benefits．
16．What's the main idea of the passage？C
A．An explanation of an English saying．
B．How to make full use of apples．
C．Apples are beneficial to our health．
D．How to keep healthy in our daily life．
17．By eating apples we can get many benefits EXCEPTD．
A．lowering the cholesterol
B．keeping a healthy weight
C．building immunity
D．preventing heart disease
18．Which of the following can most probably replace the underlined word"respectable"？B
A．Admirable．B．Considerable．C．Reliable．D．Valuable．
19．Which plays an important role in reducing the risk of breast cancer？B
A．The pectin．B．The apple skins．
C．The flesh of apples．D．The fiber of apples．
20．What's the author's attitude towards the effect of eating apples？A
A．Positive．B．Negative．C．Doubtful．D．Uncertain．
分析 本文从科学的角度具体写了苹果给人的身体健康带来的好处．
解答 16．C 细节理解题．根据文章第一段第一句An apple a day keeps the doctor away"is one of the most common sayings in the English languages每天一个苹果，远离医生这个谚语说的就是苹果对于我们的健康有益，所以答案选C．
17．D 细节理解题．Apples can help keep your levels of bad cholesterol （胆固醇） down．苹果可以帮助保持你的胆固醇水平； By eating apples，you will be more able to maintain a healthy weight 通过吃苹果，你就能更健康地保持体重and can also prevent diseases like arthritis．Apples are rich in vitamin C，which is known to help build immunity．而且还可以预防关节炎等疾病，苹果富含维生素C，这是众所周知的帮助建立免疫力．A B C选项都是吃苹果的好处，说阻止心脏病的说法是没有的．答案选D．
18．B 猜测词义题．Apples contain respectable levels of boron 苹果含有相当量的硼，which helps build healthy bones，and can also prevent diseases like arthritis有助于建立健康的骨头，而且还可以预防关节炎等疾病．所以可以猜测respectable是"一定量的"与Considerable"相当大的"意义相同，所以答案选B．
19．B 细节理解题．根据句子Studies have shown that apples can decrease the risk of breast cancer，colon cancer，and liver cancer．One theory is that the apple skins are responsible for this究表明，苹果可以降低患乳腺癌、结肠癌和肝癌的风险．一种理论认为，苹果皮负责这项重要作用．所以答案选B．
20．A 作者态度题．根据文章作者对于苹果的从谚语An apple a day keeps the doctor away到科学的研究的描写，可以看出作者对于苹果对于健康的影响是肯定的态度，所以答案选A．
点评 本文考查细节题为主，细节题可以在文章中直接找到与答案有关的信息？或是其变体．搜查信息在阅读中非常重要它包括理解作者在叙述某事时使用的具体事实、数据、图表等细节信息．在一篇短文里大部分篇幅都属于这类围绕主体展开的细节．做这类题一般采用寻读法？即先读题，然后带着问题快速阅读短文，找出与问题有关的词语或句子，再对相关部分进行分析对比，找出答案．
