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精英家教網 > 高中英語 > 題目詳情

7．To understand how mirrors produce images，we need to know what light does．

分析為了理解鏡子如何產生圖象，我們需要知道光是干什么的．

解答答案是To understand．本題考查語境中選用恰當的詞或短語的適當形式．根據句意，題干中需要不定式表示目的，"為了理解"鏡子如何產生圖象，故答案是To understand．

點評單詞填空必須在對語境整體理解的基礎上抓住指向答案的關鍵線索、固定句型或搭配等，同時注意所選詞的形式變化．

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