Work your brain!

Between 2 and 3 pounds of wonder，it controls everything we say，do or think，who we are and what we care about. The way we walk or laugh or figure out things. What we like and the talents we possess. How we see and talk and run and jump and process our food.

The brain uses 20 percent of our body's oxygen and 20 percent of its blood. Somewhere within its protein，fat, 100,000 miles of blood vessels and 100 billion nerve cells，it helps us remember where we put our gym shoes. Change our temperature so we don't die because of the heat or cold. Speed us up or slow us down. Help us choose between orange juice or orange­flavored drinks.

Its intricacies(復(fù)雜性)are stunning，far beyond anything most of us can imagine. To keep this work of art as polished(有光澤的) as possible we need to eat right，exercise and keep mentally stimulated(刺激)．

Good nutrition helps brain cells communicate with each other. Exercise stimulates a hormone(荷爾蒙)in our brain that improves memory. Mental stimulation keeps you sharp even as you age.

“It's very important that we tell people to be physically active and mentally active，” said neurologist Malcolm Stewart.

“People cannot stop aging，but you're able to reduce the damage；you're able to keep the function up.”

Following are Dr.Stewart's advice for improving brain health：

Nutrition

Avoid fast food. Follow the old adage(格言，諺語)：For breakfast，eat like a king；for lunch，like a queen；for supper，like a beggar.

Exercise

Do a combination of stretching aerobic and muscle­strengthening every day.

Mental games

Try to have a sense of hope about the future. Do puzzles. Listen to music. Reach out to others to make their lives better.

1.The purpose of the author in writing this passage is to ______.

A. inform us how the brain works

B. give us advice on how to keep the brain healthy

C. tell us that the brain plays an important role in our lives

D. show how special the brain is to us

2.The word “stunning” in Paragraph 5 means ______.

A. interesting 　       B. strange              C. significant　        D. amazing

3. According to the text，more exercise ______.

A. keeps our mind sharp 　　 

B. helps improve our memory

C. gives our brain a rest 　　 

D. is good for brain cells communicating with each other

4. In order to keep brain healthy，we should avoid ______.

A. eating a good lunch                      B. doing puzzles

C. eating a large supper                    D. taking aerobic exercise

 

【答案】

 

1.B

2.D

3.B

4.C

【解析】略

 

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“Ready for your trip to space?” you ask your son and daughter. In 2005 only specially trained astronauts went into space – and very few of them. Today anyone can go to space for day trips or longer vacations. Your best friend even works in space. Handing your children three strawberries each , you add, “The doctor said you need these for space travel.” Thanks to medical advances, vaccination shots(防疫針) are a thing of the past. Ordinary foods contain special vaccines. With the berries in their mouths, the kids head for the front door.

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閱讀下面短文，掌握其大意，然后從21~40各題所給的四個選項（A、B、C和D）中，選出最佳選項。
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37. A. set                  B. sent                C. spent              D. put
38. A. problems             B. questions            C. suggestions          D. advice
39. A. imagining              B. realizing             C. suggesting         D. expecting  
40. A. take in                B. take up                   C. take place          D. take over   
41. A. smallest               B. biggest                   C. difficult               D. easy     
42. A. would                B. could                   C. should               D. might
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閱讀下面短文，掌握其大意，然后從21~40各題所給的四個選項（A、B、C和D）中，選出最佳選項。

Many years ago, a salesman opened a bag of things from Scotland and found a card at the top. It  36   , “Expect a Miracle（奇跡）.” “What does that mean?” he thought, and then  37   it into his pocket.

That night he showed it to his wife. “Look at this, dear. What do you think it means?”

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37. A. set                  B. sent                C. spent              D. put

38. A. problems             B. questions            C. suggestions          D. advice

39. A. imagining              B. realizing             C. suggesting         D. expecting  

40. A. take in                B. take up                   C. take place          D. take over   

41. A. smallest               B. biggest                   C. difficult               D. easy     

42. A. would                B. could                   C. should               D. might

43. A. making               B. taking                  C. finding               D. doing   

44. A. suggestion          B. money                 C. ability               D. trust

45. A. harmful                  B. strange                  C. useful               D. embarrassing

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47. A. losing                   B. disappearing            C. growing            D. displaying     

48. A. as soon as              B. as long as                 C. as far as              D. as well as

49. A. keeps on              B. keeps up                 C. keeps out                  D. keeps from   

50. A. while                        B. before                          C. until                           D. when

51. A. shapes                B. types             C. sizes               D. kinds

52. A. up                    B. out                C. off                 D. for     

53. A. think of                     B. take care of        C. speak out            D. believe in 

54. A. bored                    B. surprised          C. upset                  D. puzzled   

55. A. dull                   B. careful            C. lively                   D. unloving 

 

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