I have no idea _______ they will pass the final exam.
A.that B.when C.whyD.whether
D

試題分析:考查同位語(yǔ)從句。本題中的whether引導(dǎo)同位語(yǔ)從句,對(duì)名詞idea的內(nèi)容進(jìn)行解釋。句意:我不知道他們是否會(huì)通過(guò)期末考試。根據(jù)句意說(shuō)明D項(xiàng)正確。That在同位語(yǔ)從句中沒(méi)有任何的意思,BC兩項(xiàng)與句意不符。
點(diǎn)評(píng):解答這類題目,關(guān)鍵在于分析清楚句子結(jié)構(gòu),知道引導(dǎo)詞的使用習(xí)慣。通過(guò)判斷引導(dǎo)詞在從句中所作的成分,來(lái)選擇正確的引導(dǎo)詞。連接同位語(yǔ)從句的從屬連詞主要有that, if, whether,和疑問(wèn)詞(what how where when ...)。that引導(dǎo)表示陳述句的同位語(yǔ)從句,if和whether,whether...or not引導(dǎo)表示“是否”的一般疑問(wèn)句的同位語(yǔ)從句。連接代詞主要有who,whom,whose,what,whoever,whomever,whosever,whatever,whichever等。連接代詞一般指疑問(wèn),但what, whatever除了指疑問(wèn)外,也可以指陳述。連接副詞主要有when, where, why, how, whenever, wherever, however等.
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