三、 句子翻譯

1. 人類生存離不開水、氧氣或食物。

      

2. 地球上的人口仍在迅速增長。

     

三、1.Humans cannot survive without water,oxygen or food.

2. The population on the Ecirth is still increasing rapidly

題目來源：2016年綜合素質(zhì)學英語隨堂反饋Ⅱ九年級下冊（總復習模擬卷） > Unit 4 Life on Mars

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五、 閱讀理解

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