题目内容
19.The reason why we have to fall to the ground is that there is gravity.分析 我们不得不落到地面的原因是存在地球引力.
解答 答案是gravity.本题考查语境中选用恰当的词;gravity n.重力,地球引力;严重性;根据语境,因为"地球引力"我们落到地面,故答案是gravity.
点评 首字母填空必须在对语境整体理解的基础上抓住指向答案的关键线索、固定句型或搭配等,并联系首字母,同时注意所选词的形式变化.
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