五、词汇运用（共10小题；每小题1分，计10分）

根据句子意思，用括号中所给的汉语提示或英语单词的适当形式填空。（每空一词）

66. What great fun the volunteer has _____________(描述) wild birds in the wetlands to us!

67. ----What’s wrong with you? ----I have a _______________(牙疼).

68. There is fog and haze（霾）here these days. What an _____________(糟糕的)day!

69. People didn’t protect the earth and our living __________(条件) are getting worse and worse.

70. It’s _____________(礼貌的) to shout at your parents when you are angry.

71. They ____________(shake) their hands with each other tightly when they met again.

72. In summer, it may be much ____________(rain) in the south.

73. Through the ________（art）drawings, we can learn that they lived a very poor life in the past.

74. It’s hot in that area, with temperatures in the ____________(four).