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精英家教網(wǎng) > 高中英語 > 題目詳情

20．We cannot existwithout air，food and water．

分析我們離開空氣、食物和水就不能生存．

解答答案是exist．本題考查語境中選用恰當?shù)脑~或短語的適當形式．exist vi．存在；情態(tài)動詞后接動詞原形；故根據(jù)句意答案是exist．

點評首字母填空必須在對語境整體理解的基礎(chǔ)上抓住指向答案的關(guān)鍵線索、固定句型或搭配等，結(jié)合首字母選用恰當?shù)脑~，同時注意所選詞的形式變化．

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