《阅读理解解题技巧》进阶练习（三）.doc

阅读理解解题技巧进阶练习I. 阅读理解ADoes exercise strengthen your brain while it builds muscle? To learn more about how exercise affects the brain，scientists in Ireland recently asked a group of sedentary(久坐的)male college students to take part in a memory test followed by strenuous(紧张的)exercise. First，the young men watched a rapidfire lineup of photos with the faces and names of strangers. After a break，they tried to recall the names they had just seen as the photos again moved quickly across a computer screen. Afterward，half of the students rode a bicycle，at an increasingly strenuous pace，until they were exhausted. The others sat quietly for 30 minutes. Then both groups took the brain-teaser test again. Notably, the exercised volunteers performed significantly better on the memory test than they had on their first try. while the volunteers who had rested did not improve. Meanwhile, blood samples taken throughout the experiment offered a biological explanation for the increase in memory among the exercisers. Immediately after the strenuous activity，the cyclists had significantly higher levels of a protein known as BDNF，which is to promote the health of nerve cells. The men who had sat quietly showed no comparable change in BDNF levels. For some time. scientists have believed that BDNF helps explain why mental functioning appears to improve with exercise. However，they havent fully understood which parts of the brain are affected or how those effects influence thinking. The Irish study suggests that the increases in BDNF caused by exercise may play a particular role in improving memory and recall. Other new studies have reached similar conclusions，among both people and animals，young and old. In one interesting experiment published last month, Brazilian scientists found that after sedentary elderly rats ran for a mere five minutes or so several days a week for five weeks. an increase of biochemical processes appeared in the memory center of their brains，resuming in increased production of BDNF there. The old，exercised animals then performed almost as well as much younger rats oil memory tests. 1. The brain-teaser test shows that _ . A. a good rest can improve ones memory B. too much exercise can slow down ones memory C. exercise can improve ones memory D. cyclists usually have better memory 2. What is the function of the BDNF? A. To increase the number of brain cells. B. To remind people of what is likely to be forgotten. C. To draw ones attention to what is seen. D. To motivate the brain and refresh ones memory. 3. The sedentary elderly rats _ after five weeks of running. A. got worn out in the end B. performed better in remembering things C. reduced the amount of BDNF D. stopped biochemical process in the brain 4. The best title for the passage might be_A. How Exercise Benefits the BrainB. Too Much Exercise Harms the BrainC. Experiments on the BrainD. Exercise Helps One Stay YoungBYesterday was my stepmoms birthday. I hadnt been home for a long time so I wanted to stop by the house to see her on this special day. I have been struggling financially so I was afraid of the long trip. Gas is so expensive nowadays! Anyway, I filled my tank with gas and set off。 I stopped at the shopping mall and found a present. It was the perfect gift and I knew she would love it. But when I got to the cashier my card was declined! I did not have enough money in my account to pay for the gift! So I pondered the issue for a few minutes. I could put it back and get something cheaper, but I knew there was nothing else in the store she would like as much. So, I got on my smart-phone and transferred some money from my savings account so I was able to pay for the gift. It took a big chunk of my savings but I wanted her to have something special. She loved the gift and I felt that even though I had spent almost all my money my stepmom deserved the best and I was glad I gave her the best that I could. Before leaving my parents house, my dad took me to one side and, with our secret hand-shake, he gave me some money. I had not said anything to him about my finances but I guess my dad had just known it. When I got to the car, I saw the amount he gave me was three times what I had spent on the gas and the gift! It goes to show that doing the right thing always comes with great rewards. 1. Why was the writer unwilling to have a long trip？ A. Because gas was hardly available. B. Because the writer was short of money. C. Because the writer didnt like driving. D. Because the road was difficult to drive on. 2. The underlined word “pondered” in Para. 4 means _. A. thought aboutB. tried on C. depended onD. got through 3. From the passage, we can infer that _. A. the writer loves his/her stepmom very much B. the gift the writer bought was loved by his/her father very much C. the writer spent all his/her savings buying the gift for his/her stepmother. D. the gift the writer bought was the most expensive one in the shop 4. Why did the writers father shake hands with the writer in secret? A. Because he wanted to ask the writer for something special.B. Because he wanted to give the writer some money.C. Because he knew the writer had been struggling financially.D. Because he didnt want others to copy their handshake.参考答案【答案】A：1.C2.D3.B4.AB：1.B2.A3.A4.B【解析】A 1 4.【文章大意】文章介绍锻炼在增强你的肌肉同时还会强化你的大脑。 1. 根据文章第四段的句子Notably, the exercised volunteers performed significantly better on the memory test than they had on their first try. while the volunteers who had rested did not improve.可知，这个智力问答的测试证明锻炼能提高一个人的记忆力。故选C。 2. 根据文章倒数第二段的句子The Irish study suggests that the increases in BDNF caused by exercise may play a particular role in improving memory and recall.可知，BDNF的功能是激发大脑，更新记忆。故选D。 3. 根据文章最后一段的句子Brazilian scientists found that after sedentary elderly rats ran for a mere five minutes or so several days a week for five weeks. an increase of biochemical processes appeared in the memory center of their brains，可知，不爱动的老的老鼠在跑了五个星期后记忆更好。故选B。 4. 根据文章内容和第一段的句子Does exercise strengthen your brain while