广东省2013年高考英语二轮复习 同步专题 阅读理解21

1 阅读理解精选阅读理解精选 2121 Motherhood may make women smarter and may help prevent dementia 痴呆 in old age by bathing the brain in protective hormones 荷尔蒙 U S researchers reported on Thursday Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies and their brains show changes that suggest they may be protected against diseases such as Alzheimer s 早老痴呆症 University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans Our research shows that the hormones of pregnancy 怀孕 are protecting the brain including estrogen 雌激素 which we know has many neuroprotective 保护 神经的 effects Kinsley said It s rat data but humans are mammals just like these animals are mammals he added in a telephone interview They go through pregnancy and hormonal changes Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer s and other forms of age related brain decline When people think about pregnancy they think about what happens to babies and the mother from the neck down said Kinsley who presented his findings to the annual meeting of the Society of Neuroscience in Orlando Florida They do not realize that hormones are washing on the brain If you look at female animals who have never gone through pregnancy they act differently toward young But if she goes through pregnancy she will sacrifice her life for her infant that is a great change in her behavior that showed in genetic alterations 改变 to the brain 26 How do scientists know Motherhood may make women smarter A Some researchers have told them 2 B Many women say so C They know it by experimenting on rats D They know it through their own experience 27 What does the phrase litters of pups mean in the second paragraph A Baby rats B Animals C Old rats D Grown up rats 28 What can protect the brain of a woman according to the passage A Estrogen B The hormones of pregnancy C More exercise D Taking care of children 29 It s rat data but humans are mammals just like these animals are mammals What does the sentence suggest A The experiments on the rats have nothing to do with humans B The experiments on the rats are very important for animals C The experiments on the rats are much the same on humans D The experiments on the rats are much the same on other animals 30 Which title is the best for this passage A Do You Want to Be Smarter B Motherhood Makes Women Smarter C Mysterious Hormones D An Important Study 答案及解析答案及解析 2 26 30 CABCB 本文介绍了一个观点 母性特点能使妇女变得更加聪明灵敏 26 C 细节题 根据 Tests on rats show 可知科学家是通过做老鼠实验得出这个结 论 27 A 词义猜测题 后面的对比 who have no babies 实际上提供了一个相反的情况 所以我们可以推测 those who raise two or more litters of pups 中的 litters of pups 指的是 刚出生不久的小老鼠 28 B 细节题 根据文章第 3 段中的 the hormones of pregnancy 怀孕 are p