Question

5．How do you remember the way to your house？Where do dreams come from？It is your brain（大脑）that does these things．A British scientist showed that"sleep can improve one's memory"．It's not a dream for students to study when they sleep．In fact，your brain is working day and night．If you learn words before bed，a certain part of the brain my help you to remember the word while you sleep．What's more，another scientist in the USA found that there was a"talent button（天才按钮"in the human brain．It might make a person more talented．
There are more interesting things about the brain．Your brain uses less energy than a fridge light．Just two bananas can give the brain enough energy to work for a whole day．Acceding to some scientists，yawning（打哈欠）keeps our brains"cool"，which makes us think quicker．
Here are some pieces of advice to keep a good brain．
l  Eat healthy foods．
l  Get a lot of playtime or exercise．
l  Don't drink or smoke
l  Use you brain a lot
51 A British scientist found out thatCcould improve our memories．
A．drink        
B．dreams             
C．sleep         
D．bananas
52．According to the passage，if we want to have a good brain，we shouldA．
A．use our brains more                
B．sleep fewer hours
C．work longer hours                  
D．remember fewer things
53．Which of the following is TRUE according to the passage？D
A．Our brains only work in the daytime．
B．Our brains need much energy every day．
C．Smoking can keep our brains healthy．
D．Getting exercise is good for our brains．

Answer 1

分析 文章大意：这是一篇科普知识类阅读，短文主要介绍了我们神奇的大脑，指出当我们睡觉时部分大脑还在工作；并且文章还给出了保持良好记忆力的四个方法．如：吃健康食品、多运动、不喝酒或抽烟、多使用大脑．

解答 51．答案：C．细节理解题．根据文章中第一段第一行"sleep can improve our memory"睡眠可以改善我们的记忆．可知是"睡眠"，选C．
52．答案：A．细节理解题．文章结尾处提到的四个方法"一、吃健康的食物；二、多玩游戏多运动；三、不要喝酒或吸烟酒；四、多用脑．"所以如果想要有一个好的大脑，要多使用大脑．选A．
53．答案：D．推理判断题．根据文章所给的四个健脑方法，第二个 Get a lot of playtime or exercise．多做游戏或运动．可知，只有选项D是"锻炼对我们的大脑有好处．"正确的，选D．

点评 阅读题型，要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解．根据所给问题选择正确选项完成试题．