Question

8．根據(jù)短文內(nèi)容，從短文后的選項中選出能填入空白處的最佳選項，選項中有兩項為多余選項．
Easy Ways to Keep Your Brain Sharp
Everyone is forgetful，but as we age，we start to feel like our brains are slowing down a bit-and that can be a very annoying thing．（71）Luckily，research shows there is a lot you can do to avoid those moments． Read on for some techniques worth trying．
1． （72）Focus on the future．．
People who regularly made plans and looked forward to upcoming events had a 50 percent
reduced chance of Alzheimer's disease （早老性癡呆癥），according to a recent study．（73）But don't worry if your schedule isn't filled with life-changing events．．Something as simple as setting a goal to have a weekly coffee date with a friend will do．There's evidence that people who have a purpose in life or who are working on long or short-term goals appear to do better．In other words，keep your brain looking forward．
2．Go for a walk．
Mildly raised glucose （葡萄糖） levels can harm the area of the brain that helps you form memories and physical activity can help get blood glucose down to normal levels．In fact，exercise produces chemicals that are good for your brain．（74）In other words，when you take care of your body，you take care of your brain．．
3．Learn something new．
Take a Spanish class online，join a drawing club，or learn to play cards．A study found that mental stimulation （刺激） limits the weakening effects of aging on memory and the mind．But the best thing for your brain is when you learn something new and are physically active at the same time．（75）It should be something like learning gardening．Or go dancing with your friends．

A．Focus on the future．
B．This can be especially harmful to the aged．
C．It should be something like learning gardening．
D．So take a few minutes each day to do some reading．
E．But don't worry if your schedule isn't filled with life-changing events．
F．Luckily，research shows there is a lot you can do to avoid those moments．
G．In other words，when you take care of your body，you take care of your brain．

Answer 1

分析 本文是一篇說明文，主要講述的是我們可以通過一些簡單的途徑來保持我們的大腦健康敏銳，比如：聚焦未來、保持積極向上的心態(tài)、保持思維靈敏、鍛煉身體學(xué)習(xí)新知識．

解答 71．F     考查句意理解和上下文．根據(jù)Read on for some techniques worthtrying．和下文的123 條就是避免思維遲鈍的方法．故選F．
72．A     考查句意理解和上下文．由下文There'sevidence that people who have a purpose in life or who are working on long orshort-term goals appear to do better．In other words，keep your brain lookingforward．可知經(jīng)常做計劃，制定短期或長期目標(biāo)的人會做得更好，要保持思維超前，故選A．
73．E     考查句意理解和上下文．由下文Something assimple as setting a goal to have a weekly coffee date with a friend will do．可知：同朋友約會喝咖啡這樣的簡單事情也行，所以你不必?fù)?dān)心．故選E．
74．G     考查句意理解和上下文．由上文Mildlyraised glucose （葡萄糖）levels can harm the area of the brain that helps you form memories and physicalactivity can help get blood glucose down to normal levels．可知：鍛煉能產(chǎn)生有益大腦的化學(xué)物質(zhì)，后一句是進(jìn)一步說明，故選G．
75．C     考查句意理解和上下文．由上句But the bestthing for your brain is when you learn something new and are physically activeat the same time．可知對大腦最好的事情是你學(xué)新東西時，身體也要動，即腦力勞動和體力勞動相結(jié)合的事，就像學(xué)習(xí)園藝以及和朋友跳舞這樣的事情．故選C．

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