Mildly raised glucose (葡萄糖) levels can harm the area of the brain that helps yoform memories and physical activity can help get blood glucose down to normal levels. In fact, exercise produces chemicals that are good for your brain.____39___

3. Learn something new.

Take a Spanish class online, join a drawing club, or learn to play cards. A study found t hat mental stimulation (刺激) limits the weakening effects of aging on memory and the mind. But the best thing for your brain is when yolearn something new and are physically active at the same time. _40_____ 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 yocan do to avoid those moments.

G. In other words, when yotake care of your body, yotake care of your brain.

第三部分 英语知识运用(共两节，满分45分)

第一节完形填空(共20小题;每题1.5分，满分30分)阅读下面短文，从短文后各题所给的四个选项(A, B, C和D)中，选出可以填入空白处的最佳选项，并在答题卡该项涂黑。

When I was young at school, I loved to talk, a characteristic not always appreciated by Miss Jordan, my tenth-grade English teacher.

She was a teacher no one wanted because she was so 41 . She stood about five-foot-five, was very thin and wore her hair pulled back in a way that gave her a horsy look. She wore those half-circular reading glasses. Whenever she got 42 , she would lower her head and look at yoover the top of her glasses.

One day in her class I was busy talking. I didn’t 43 she had stopped teaching and was 44 straight at me. “Young lady, I would like to see yoafter school.”

Later Miss Jordan 45 in a low, but very firm voice that showed she expected me to listen when she was talking. For 46 she told me to write a thousand word essay on education and its effect on the economy. She wanted it in by the following Wednesday.

Well, I met my deadline. I was 47 . It was a good paper. And I expected a sign of 48 from her. The next day in class, 49 , she was looking at me over her glasses. She called me forward and 50 my paper. “Go back and rewrite,” she said. “Remember, each paragraph is supposed to begin with a topic sentence.” When she gave my paper back a second time, she 51 the grammar. The third time, the spelling. The fourth time, it was punctuation. The fifth, it wasn’t neat enough. I was 52 !

The sixth time, I rewrote the whole paper 53 , in ink, leaving generous space. When she saw it, she removed her glasses and smiled. She finally 54 the paper. After that, I put the whole thing out of my 55 .

Two or three months passed. One day Miss Jordan came into the class and said to us: “Class, do yostill 56 an essay contest held citywide? They’ve announced the 57 . I am happy to inform yothat Mary has won third prize in the essay contest---‘On the Impact of Education on the Economy’.”

I was amazed and 58 _. It was the first time I had ever won a prize. Years later, I told a reporter that story, and my comments---including my 59 description of Miss Jordan’s appearance. Miss Jordan wrote me, and said that her appearance wasn’t what was important. What was important was the 60 I had learnt. When I wrote and rewrote that paper for her, I began to learn how to discipline myself.

41. A. open B. strict C. careful D. cold

42. A. upset B. happy C. excited D.exhausted

43. A. guess B. believe C. imagine D. realize

44. A. waving B. laughing C. staring D. running

45. A. complained B. whispered C. explained D. apologized

46. A. objection B. motivation C. punishment D. encouragement

47. A. confident B. concerned C. nervous D. helpful

48. A. suggestion B. approval C. comment D. respect

49. A. otherwise B. moreover C. however D. therefore

50. A. changed B. tore C. opened D. returned

51. A. mastered B. corrected C. taught D. identified

52. A. relieved B. grateful C. relaxed D. sick

53. A. carelessly B. eagerly C. vaguely D. slowly

54. A. published B. accepted C. finished D. studied

55. A. mind B. list C. question D. sight

56. A. remember B. enter C. expect D. organize

57. A. plans B. winners C. participants D. names

58. A. curious B. anxious C. thrilled D. enthusiastic

59.A.lovely B. lively C. cautious D. unfriendly

60. A. lesson B. meaning C. skill D. result