This problem may lead to more serious ones if ______ unsolved.

A．making           B．remained          C．keeping           D．left

 

【答案】

D

【解析】

試題分析：考查狀語從句的省略：主從句的主語一致的時(shí)候，可省略從句的主語和be動(dòng)詞，這題的四個(gè)選項(xiàng)都是省略式，用了不同的動(dòng)詞，A項(xiàng)的make和this problem是被動(dòng)關(guān)系，應(yīng)該是made，B項(xiàng)的remain是連系動(dòng)詞，沒有被動(dòng)式，C項(xiàng)的keep和this problem也是被動(dòng)關(guān)系，應(yīng)該是過去分詞，D項(xiàng)填left="if" this problem is left unsolved。句意：如果這個(gè)問題任由不解決，就會(huì)導(dǎo)致更加嚴(yán)重的問題，選D。

考點(diǎn)：考查狀語從句的省略

點(diǎn)評(píng)：當(dāng)狀語從句的主語與主句的主語一致，且狀語從句中有系動(dòng)詞be的時(shí)候，可以把狀語從句的主語和be動(dòng)詞一起省略。如果狀語從句中有it is的時(shí)候，it is 也可以省略。

 

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