Ⅳ. 阅读短文，选择最佳选项。
Memory is very important. It helps you remember who you are, where you live, what you have learnt and what you plan to do in the future.
So, how can you improve your memory?
It is important to exercise your brain. For example, you can do new things and change your daily habits. If
you walk a different way to school or take a different bus, you will keep your brain active. You can try to memorize something new. You can try a maths puzzle. You can also try to learn new skills or study a foreign language. Your brain gets lots of regular exercise if you do any of these things.
If you live a healthy life, your memory will work better. You must have a balanced diet. You must give your brain enough time to rest. Unless you get enough sleep every night, you will not remember things well.
If you want your brain to work well, you also need to relax. If you get too worried, your brain will slow down, and your memory will become less sharp.
So, to improve your memory, you should exercise your brain, live a healthy life and stay relaxed.
1. What can trying a maths puzzle help you do according to the text?
()
A. Have a good grade.
B. Do well in maths.
C. Exercise your brain.
D. Make your body strong.
2. What can we learn from the text?
()
A. Sometimes our memory will become sharp when we get worried.
B. There are three ways to improve your memory in the text.
C. The more you sleep, the better memory you will have.
D. We can take the same bus to exercise our brain.
3. What's the structure of the text?
()


4. What does the text mainly talk about?
()
A. Living healthily.
B. The importance of memory.
C. How to exercise your brain.
D. How to improve your memory.

1－4 CBAD

【分析】
本题为英语阅读理解题，共4道选择题，考查细节理解、主旨大意、推理判断及文章结构分析能力。解题思路：1. 第1题定位原文中“做数学谜题”的作用，匹配对应选项；2. 第2题逐一核对选项与原文表述，排除错误选项；3. 第3题梳理文章结构，匹配对应结构选项；4. 第4题归纳全文主旨，确定最佳选项。
【解析】
1. 第1题：根据原文第三段“It is important to exercise your brain. For example... You can try a maths puzzle.”可知，做数学谜题是锻炼大脑的方式，选项C符合；A、B、D均未在原文提及，故选C。
2. 第2题：A选项与原文“If you get too worried... your memory will become less sharp”相悖；B选项对应原文最后一段“you should exercise your brain, live a healthy life and stay relaxed”，共三种提高记忆的方法，正确；C选项原文强调“足够睡眠”，并非“越多越好”，错误；D选项原文建议走不同的路或坐不同的公交，错误，故选B。
3. 第3题：原文采用“总-分-总”结构，结合选项对应要求，选A。
4. 第4题：全文围绕“如何提高记忆力”展开，A、B、C均为片面内容，D符合主旨，故选D。
【答案】
1－4 CBAD
【知识点】
英语阅读理解、细节理解、主旨大意
【点评】
本题为说明文类阅读理解，考查学生快速定位细节、归纳主旨及分析文章结构的能力，题目难度适中，需学生准确把握原文信息。
【难度系数】
0.7