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If water becomes increasingly scarce in decades ______, water shortage will become a hot issue all over the world.

A.coming           B.having come       C.to come           D.to be coming

 

【答案】

C

【解析】

試題分析:decades to come 未來的數(shù)十年,to come不定式作定語,表將來。

考點(diǎn):非謂語動(dòng)詞的用法

點(diǎn)評:解題思路,①解析句子結(jié)構(gòu),確定設(shè)空在句子中充當(dāng)?shù)墓δ埽ㄈ鐮钫Z、定語或賓補(bǔ));②找準(zhǔn)相關(guān)動(dòng)詞的邏輯主語,確定該動(dòng)詞與邏輯主語是什么關(guān)系(主動(dòng)還是被動(dòng));③搜索句子中相關(guān)的時(shí)間信息,確定非謂語動(dòng)詞的恰當(dāng)形式;④將該選項(xiàng)置入空中,看是否能夠做到字從意順,或是否能傳達(dá)有效信息、完成交際任務(wù)。

 

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