The exercise is not difficult but just needs care and patience.
A. by itself B. of itself C. in itself D. for itself
同步輕松練習系列答案
課課通課程標準思維方法與能力訓練系列答案科目：高中英語 來源：河北省邢臺一中2011－2012學年高二下學期第四次月考英語試題 題型：053
根據短文內容，從短文后的選項中選出能填入空白處的最佳選項，選項中有兩項為選項．
Ea sy Way s to Keep Your Brain SharpEveryone i s forgetful, but a s we age, we start to feel like our brain s are slowing down a bit-and that can be a very annoying thing． 1 Read on for some technique s worth trying．
1． 2
People who regularly made plan s and looked forward to upcoming event s had a 50 percent reduced chance of Alzheimer' s di sea se(老年性癡呆癥)， according to a recent study． 3 Something a s simple a s setting a goal to have a weekly coffee date with a friend will do．There' s evidence that people who have a purpo se in life or who are working on long or short-term goal s appear to do better．In other word s, keep your brain looking forward．
2．Go for a walk．
Mildly rai sed glucose(葡萄糖)level s can harm the area of the brain that help s you form memorie s and phy sical activity can help get blood glucose down to normal level s．In fact, exerci se produce s chemical s that are good for your brain． 4
3．Learn something new．
Take a Spani sh cla s s online, join a drawing club, or learn to play card s．A study found that mental stimulation limit s the weakening effect s of aging on memory and the mind．But the be st thing for your brain i s when you learn something new and are phy sically active at the same time． 5 Or you can ju st go dancing with your friend s．
A．Focu s on the future．
B．Thi s can be e specially harmful to the aged．
C．It should be something like learning gardening．
D．So take a few minute s each day to do some reading．
E．But don't worry if our schedule i sn't filled with life－changing event s．
F．Luckily, re search show s there i s a lot you can do to avoid tho se moment s．
G．In other word s, when you take care of your body, you take care of your brain．
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