11．Could eating fast food be bad for more than just your health？New research has found proof that eating foods high in sugar and fat could also be bad for your IQ．
Researchers from the United Kingdom and Canada looked at what children ate when compared to their IQ levels．The researcher used surveys to ask parents how often their children ate junk food．The parents were surveyed when the children were aged 3，then followed up 5years later to see how the diet affected the growing children's IQ．They found that those who ate more junk food had lower IQ levels than those who ate a more nutritious diet．
"This suggests that any cognitive（认知的） effects relating to eating habits early in childhood may well continue to exist in later childhood，despite any later changes （including improvements） to dietary intake，"the authors wrote．
The researchers found that dietary habits between the ages of 4and 7did not have as much of an effect as what children ate at age 3did．This may be because the brain grows the quickest during the first three years of life，and thus is more easily affected by things such as diet．
"A possible explanation for this is that the brain grows at its fastest rate during the first three years of life．Studies have shown that head growth during this time is associated with cognitive outcome，and it is possible that good nutrition during this early period may encourage brain growth，"the researchers wrote．
The researchers point out that they have found an association between food and IQ，but not a direct cause or effect．Other factors could have played a role in determining a child's IQ．Parenting，genetics，and even family income are all factors that determine how intelligent a child will be．
Despite this，nutritionists tell us that what children eat can affect how healthy they are，how much rest they get，how smart they are during school．All of these things could change a child's test on IQ level．It is not clear whether food affects IQ directly or indirectly．
More research is needed to determine if there is a direct effect between what a child eats and how intelligent they are．However，the study does suggest that there may be more reasons than just physical health to make sure a child gets a healthy diet．
60．What is the best title for the passage？D
A．New Research on Healthy Diet B．Diets Determine Our Heights
C．Children's Health and Junk Food D．Junk Food Lowers Your IQ
61．Researchers surveyed the parentsC．
A．when the children were between 3and 4years old
B．while they were having junk food with children
C．by asking how often their children ate junk food
D．by always following the children
62．From the research we knowB．
A．the more healthy food we eat，the more intelligent we are
B．what we eat during the first three years of life affects our brain most
C．parenting，genetics，and family income have little to do with our IQ
D．it is children's diet that determines the growth of their brain directly
63．The passage is likely to appear inB．
A．a newspaper advertisement B．a science magazine
C．a financial report D．an education paper．
分析 本文是一篇社会文化类阅读，属于科普类文章，不仅仅可以吃快餐不利于你的健康，一项新的研究发现证明，吃糖和脂肪含量高的食物也可能不利于你的智商．本文以此展开谈论，主要讲述了吃垃圾食品会降低我们的智商的有关研究．
解答 60．D．主旨大意题．阅读全文，根据文章内容可知，本文主要讲述了垃圾食品降低我们的智商．故选D．
61．C．细节理解题．根据The researcher used surveys to ask parents how often their children ate junk food．可知，研究者通过询问父母他们的孩子多久吃一次垃圾食品．故选C．
62．B．细节理解题．根据This may be because the brain grows the quickest during the first three years of life，and thus is more easily affected by things such as diet．可知，在生命的头三年我们吃什么最影响我们的大脑．故选B．
63．B．推理判断题．根据文章内容可知，本文主要讲述了有关垃圾食品降低我们的智商的研究，属于科普类文章，最有可能在科学杂志上看到．故选B．
点评 本文是一篇社会文化类阅读，题目涉及多道细节理解题，推理判断题，主旨大意题．做题时学生应仔细阅读原文，把握文章主要内容，联系文章上下文内容并结合所给选项含义，从中选出正确答案，一定要做到有理有据，切忌胡乱猜测．
