The fact has worried many scientists _____ the earth is becoming warmer and warmer these years.
A.whichB.thatC.a(chǎn)sD.what
B

試題分析:考查名詞性從句的同位語(yǔ)從句。本題的That引導(dǎo)同位語(yǔ)從句that the earth is becoming warmer and warmer these years解釋名詞the fact的內(nèi)容,句意:這些年來(lái)地球變得越來(lái)越熱這個(gè)事情讓很多科學(xué)家很擔(dān)憂。That在同位語(yǔ)從句中不充當(dāng)任何成分,只起引導(dǎo)作用。故B正確。
點(diǎn)評(píng):名詞性從句的考查集中在引導(dǎo)詞的選擇上,連接詞that, whether, if在句中不充當(dāng)任何成分,只起連接作用;連接代詞who(ever), which(ever), whom(ever),whose(ever),what(ever)在句中做主語(yǔ),賓語(yǔ),表語(yǔ)和定語(yǔ);連接副詞when, why, where, how,在句中做狀語(yǔ)。應(yīng)從上下句的句法關(guān)系著手分析,切不可‘望句形生答案’總的來(lái)說(shuō),考生在解答此類(lèi)型時(shí),可用排除法或造句法,造句法就是仿造原句的語(yǔ)法功能仿造出一個(gè)易懂易理解的句子,幫助判斷。
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