【題目】What's the result of the greenhouse effect? —It causes the level of the sea_________.

A.riseB.raiseC.to riseD.to raise

【答案】C

【解析】

句意：——溫室效應(yīng)的結(jié)果是什么？——它導(dǎo)致海平面上升。

考查動(dòng)詞辨析。rise和raise都有“上升，升起，上漲，舉起”的意思；rise是不及物動(dòng)詞，后面不接賓語，主語指通常不包含人為因素，自身可以升高、上升的事物。 raise是及物動(dòng)詞，后面要加賓語。to rise和to raise是不定式結(jié)構(gòu)；根據(jù)上文“What's the result of the greenhouse effect?”，推斷下文指“海平面上升”，所以空格動(dòng)詞用rise；判斷空格填不定式當(dāng)結(jié)果狀語，故選C。

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