四、词汇运用（共l0小题；每小题l分，计l0分）

根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空。在答题卡标有题号的横线上，写出空缺处所填单词的正确形式。（每空一词）

46. Tu Youyou became the first Chinese to win a Nobel Prize in science in her       (八十).

47.      （比较）your answers with those in your book to see if they are right.

48. For your own       （安全）, you’d better not play football in the street.

49. His uncle is one of the best       （工程师）in that company.

50. All the people in the world are looking forward to a       (持久的）peace.

51. As a great         (invent), the smart phone is widely used in many ways.

52. A friend of      (I) is getting married tomorrow.

53. I think his idea is worth          (consider).

54. Of all the boys, Jack is the          in our class. (heavy)

55. How        (care) you are! You’ve knocked the cup off the table again!