Ⅴ. 词汇。（10分）
(A)用括号内所给词的适当形式填空。
51.— The      (develop) of new products is important to our company. Do you know?
— Yeah, it is our duty to try our best to deal with it.

52.I think the most helpful      (invent) is the light bulb(电灯泡). It gives people more time to work and play.

53.The foreigner spoke English so      (quick) that I could hardly understand what he said.

54.The large population of China has caused many      (difficult). For example, many farmers have no farmland to grow crops on.

55.— Have you seen the pictures in the newspaper that many cities in Jiangxi have been
(flood)?
— Yes. I have. It is terrible.

(B)根据句意及汉语提示完成下列句子。
56. Luck 52       the people who want to show themselves      (给……提供……) a good stage.

57.            (多亏……) the modern communications, we can keep in touch with our friends and relatives far away easily.

58. China has       great      (取得进步) in sending man-made satellites into space.

59. Our new headmaster looks very young. I think he is            (少于) thirty years old.

60. Mike is weak in English. In order to                  (赶上) others, Mike works harder than before.