1.Scientists have come to the conclusion ______the temperature on Earth is geiting higher  and higher.( 。
A.whatB.thatC.whichD.when

分析 句意:科學(xué)家們已經(jīng)得出結(jié)論,地球上的氣溫變得越來越高.

解答 答案B.
"______the temperature on Earth is geiting higher and higher"是conclusion的內(nèi)容,是同位語從句,并且這句話是完整的句子,不缺少任何成分,故用that來引導(dǎo)同位語從句."what"在名詞性從句中做主語,賓語,表語;"which"表示哪一個(gè);"when"表示時(shí)間.故選B

點(diǎn)評(píng) 本題考查同位語從句,要分析從句中句子的結(jié)構(gòu)和意思是否完整,才能選擇出正確選項(xiàng).

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