题目内容

18.-Who approved of your action in this conflict area?
-We acted ________ the UN.(  )
A.under the pressure ofB.under the umbrella of
C.under the command ofD.under the authority of

分析 --谁批准了这一冲突地区的行动?--我们在联合国的授权下行动.

解答 答案D.under the pressure of在…的压力下;under the umbrella of在…的保护下;under the command of在…指挥下;under the authority of在…的授权下.联系上面approve of该语境,再根据句子所表达的含义,可知选择D.

点评 本题考查介词短语词义辨析.在熟知词义的基础上,再联系句子所表达的含义,从而可以选出正确的答案.

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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 (早老性痴呆症),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.

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