参考答案 1-5 ABACC 6-10 BBCBA 11-15 CABE 16-20 AB BCA 21-25 BACCB 26-30 CBCAD 31-35 ACDB 36-40 BADCA 41-45 BDBAC 46-50 ADCDA 51-55 BDCBA 56-60 BCCAD 61 plane 62. seven /7 63. swimming 64.beautiful 65.friendly 66. phone records 67.45 At the age of 50./ When they are 50 years old. 69. No matter what kind of person you are. you will be the most popular during a special time in your life, according to scientists 当然这项研究有局限,因为我们与朋友们联系的方式也在改变 71 avered 72. is73,avoid74.waste75.protect 76 to reuse 77. increasing 78. still 79. plenty 80. cheaper 81. What is the population of Hebei? 82. Have you ever been abroad? 83. These dry places are called deserts 84. It's a special day to draw people's attention to the environment. 85. I think it's our duty to protect the environmen 86.书面表达 Ohe Possble Version Though the human beings make use of the resources on the earth. they don't protect them very weL As a result, water pollution, land pollut ion and air pollutionare becoming more and more serous. So as middle school students, what can we do toprotect the environment? Firstly, we can go around on foot or by bike rather than by car. Secondly, we should take full advantage of water and dectricity. For example, we can use the wash ing water to water plants. Besides. we'd better recycle things such as plastic bags, was ted batteries, and bottles as much as possible Finally as students. in our daily life, we should turn off the lights the moment we leave, reuse our text books and s on. We hope that peole will be more concerned about protecting our planet. Only if everyone takes action can the earth become more beautiful.
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