Question

5．How do you remember the way to your house？Where do dreams come from？It is your brain（大腦）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（天才按鈕"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：這是一篇科普知識類閱讀，短文主要介紹了我們神奇的大腦，指出當(dāng)我們睡覺時部分大腦還在工作；并且文章還給出了保持良好記憶力的四個方法．如：吃健康食品、多運(yùn)動、不喝酒或抽煙、多使用大腦．

解答 51．答案：C．細(xì)節(jié)理解題．根據(jù)文章中第一段第一行"sleep can improve our memory"睡眠可以改善我們的記憶．可知是"睡眠"，選C．
52．答案：A．細(xì)節(jié)理解題．文章結(jié)尾處提到的四個方法"一、吃健康的食物；二、多玩游戲多運(yùn)動；三、不要喝酒或吸煙酒；四、多用腦．"所以如果想要有一個好的大腦，要多使用大腦．選A．
53．答案：D．推理判斷題．根據(jù)文章所給的四個健腦方法，第二個 Get a lot of playtime or exercise．多做游戲或運(yùn)動．可知，只有選項D是"鍛煉對我們的大腦有好處．"正確的，選D．

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