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13.How to Keep a Sharp Mind
No matter your age,there are times when memory lapses(失误)seem to get you down.(16)E
Exercise daily.Exercise has a whole host of benefits for your physical health.But physical fitness also has been shown to increase mental sharpness as people age.In one study,elderly men who were fit were able to perform better than those who were unfit in decision-making tasks.
Eat a healthy diet.Brain health may be key to maintaining memory stores as we age.(17)BBe sure your diet includes:healthy fats,fruits,veggies,grains,and moderate amount of alcohol.These things can help reduce your risk for stroke.
Get enough sleep.(18)FOur brains store daily memories while we sleep.You might consider taking a short nap after learning something new to help store it in your long-term memory.(19)CYou can easily practice,especially simple things that you can easily total up in your head or on a piece of paper.When you are in the grocery store,try keeping a running total of the items in your cart.When you get to the check-out you'll find out how close you were!
Don't stop learning.You can continue your education yourself throughout your life.(20)DIt is a great place to relax,gather thoughts,and focus an studying.If you have any spare time,carry a book over to the park or stop in at a family restaurant.

A.Do difficult mental tasks.
B.Avoid had fats.
C.Use your mind instead of a calculator.
D.Go to your local library to gain more knowledge.
E.Fortunately,there are ways to keep your mind sharp.
F.A well-rested mind is able to perform at its optimal ability.
G.The best courses are those that are both mentally and socially demanding.

分析 本文主要介绍了无论你的年龄多大,有些时候记忆失误似乎让你感到失望.幸运的是,有方法能够保持你的思维敏捷.1、健康饮食;2、睡眠充足;3、继续学习.

解答 16-20 EBFCD
16.E语境辨析题.根据上句No matter your age,there are times when memory lapses(失误)seem to get you down.无论你的年龄多大,有些时候记忆失误似乎让你感到失望.E项:Fortunately,there are ways to keep your mind sharp.幸运的是,有方法能够保持你的思维敏捷.符合语境,故选E.
17.B归纳总结题.根据后文Be sure your diet includes:healthy fats,fruits,veggies,grains,and moderate amount of alcohol.可知确保你的饮食包括:健康的脂肪,水果,蔬菜,谷物和适量的酒精.B项:Avoid had fats.避免有脂肪.符合文意,故选B.
18.F上下文衔接.根据本段小标题Get enough sleep.得到充足的睡眠.F项:A well-rested mind is able to perform at its optimal ability.一个休息良好的头脑能够发挥其最佳能力.符合文意,故选F.
19.C联系上文题.根据下文You can easily practice,especially simple things that you can easily total up in your head or on a piece of paper.可知你可以很容易地练习,特别是简单的事情,以至于你可以很容易地在脑海中或纸上总结.C项:Use your mind instead of a calculator.利用你的大脑而不是计算器.符合文意,故选C.
20.D联系上文题.根据上文Don't stop learning.You can continue your education yourself throughout your life.不要停止学习.你可以在你的生活中继续自学.D项:Go to your local library to gain more knowledge.去当地的图书馆获取更多的知识.符合文意,故选D.

点评 对于此类题型的解答,可以将整个文段首先浏览一遍,大概理解意思.答题过程中,根据所提供的答语或是后文进行作答,同时,做题过程中也可以使用排除法,将选项带到文章中逐一的作答,答完后注意通读检查是否符合逻辑,语义顺畅.

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