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  3. The world population today is about 6 billion. But only about 1 percent of t

The world population today is about 6 billion. But only about 1 percent of t

游客2023-09-21  45
问题     The world population today is about 6 billion. But only about 1 percent of the world’s land is【T1】______for farming. However, the area of farmland is becoming smaller and smaller every year. So it will be difficult to feed so many mouths. There are several reasons why farmland is【T2】______First, a lot of the land is being used for the【T3】______of houses. Secondly, some of the land has become wasteland because【T4】______have removed the top soil. Thirdly, some of the land has become too salty to【T5】______. Therefore, a big problem that we face today is hunger. [br] 【T2】
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答案 being lost
解析 上文提到耕地越来越少，空格所在的句子解释原因，故需要一个呼应becoming smaller and smaller的词或短语。结合录音，填入being lost
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