Question

17．How do you usually go to school：walk，cycle，take a bus or drive？
Most people know that students who go to school by bus or car are more likely to put on weight than those who walk or cycle．But did you know that exercising less could also make you fall behind in your schoolwork？
Two Danish universities recently carried out a study of 19，527students between the ages of 5and 19．The students were asked how they traveled to school and were then given a test．It was found that the students who were driven to school，or took a bus，performed worse in the test because they had poorer concentration（集中注意力）than those who took a more active way．
"As a third-grade pupil，if you exercise and cycle to school，your ability（能力）to concentrate increases to the equivalent（同等）of someone half a year further in their studies，"said Niels Egelund，a member of the study．
Depending too much on cars is also a problem for adults．British people are much lazier these days．They are walking 80miles less every year than ten years ago，a new study found．
"This creates a huge illness problem and lowers their quality of life，but most people don't seem to know that it's a problem，"said Harry Rutter from the National Observatory，the UK．"Being short of physical activity is the fourth main cause of early deaths around the world and causes about the same level of ill health that smoking does．"
71．How many Danish universities recently carried out a study？Two/2．
72．Is depending too much on cars a problem for adults？Yes，it is．
73．Why did students drive to school often do worse in their schoolwork？Because they had poorer concentration than those who took a more active way．
74．How should students go to school in order to study better and be healthier according to the writer？They should cycle to school．．

Answer 1

分析 本文介绍了上学方式与学习成绩的关系．文章说，据研究，驾车或乘公交车上学的学生的成绩最差，因为他们的注意力很差．如果是一个三年级的学生经常锻炼和骑自行车上学，其注意力得到改善，这种能力和比他高半年的学生的水平相当．对于成人来说，太依赖汽车也会出现问题，比如疾病和生活质量下降．

解答 71．Two/2．细节理解题．考查有几所丹麦大学开展了一项研究．根据文章第三段中"Two Danish universities recently carried out a study of 19，527students between the ages of 5and 19"所说，两所丹麦大学最近就19527名介于5-19岁的学生进行了研究．故回答Two/2．
72．Yes，it is．细节理解题．考查太依赖汽车是否会对成年人造成问题．根据第五段中"Depending too much on cars is also a problem for adults"所说，对于成年人来说，过于依赖汽车也会造成问题．故回答Yes，it is．
73．Because they had poorer concentration than those who took a more active way．
细节理解题．考查为什么开车上学的学生的成绩最差．根据第三段中"It was found that the students who were driven to school，or took a bus，performed worse in the test because they had poorer concentration than those who took a more active way"所说，驾车或乘公交车去上学的学生考试成绩最差，是因为他们的注意力比那些主动运用注意力的人的注意力要差．故回答Because they had poorer concentration than those who took a more active way．
74．They should cycle to school．
细节理解题．考查根据作者所说，为取得好成绩，学生应该怎样去上学．根据第四段中"As a third-grade pupil，if you exercise and cycle to school，your ability to concentrate increases to the equivalent of someone half a year further in their studies"所说，如果一个三年级的学生，平常经常锻炼，骑自行车上学，在学习中其注意力会比同等学生的注意力要好．
cycle to school骑自行车上学．故回答They should cycle to school．

点评 首先要掌握短文的意思，然后结合具体的题目再读短文，从中找出相关信息，就可以确定正确答案．