It remains doubtful ______ immediate measures could be taken to prevent underground water pollution.
A.howB.whetherC.thatD.where
B

試題分析:考查主語(yǔ)從句。本句中的it是形式主語(yǔ),真正的主語(yǔ)是后面的whether immediate measures could be taken to prevent underground water pollution.因?yàn)橹骶涞闹^語(yǔ)部分是remains doubtful仍然很懷疑,說明是不確定的事情,故使用whether。句意:是否會(huì)有立刻的措施被采取來阻止地下水污染仍然值得懷疑。That引導(dǎo)的主語(yǔ)從句表示的是確定的事情,AD項(xiàng)的句意不相符。故B正確。
點(diǎn)評(píng):在復(fù)合句中做主語(yǔ)的從句叫做主語(yǔ)從句,它的位置與陳述句基本結(jié)構(gòu)中的主語(yǔ)相同。引導(dǎo)主語(yǔ)從句的關(guān)聯(lián)詞有:連詞:that, whether;連接代詞:who, whom, whose, what, which;連接副詞:when, where, why, how;復(fù)合詞:whatever, whoever, whomever, when?螄ever, wherever, whichever, however.解答這類題目,關(guān)鍵在于分析清楚句子結(jié)構(gòu)。通過判斷引導(dǎo)詞在從句中所作的成分及意義,來選擇正確的引導(dǎo)詞。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語(yǔ) 來源:不詳 題型:單選題

_______ breaks the law should be punished .
A.Those whoB.WhomeverC.No mattter whoD.Whoever

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:單選題

______ watched the 2012 London Olympic Games agreed that some Chinese athletes performed perfectly, such as Sun Yang and Ye Shiwen.
A.AnyoneB.WhicheverC.WhoeverD.Whatever

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:單選題

It isn't decided yet _______ we will attend the meeting.
A.ifB.whyC.thatD.whether

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:單選題

---- What has made him look like lacking sleep?
----- _____ his wife is ill and he has to get up several times a night to attend to her.
A.ForB.BecauseC.ThatD.What

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:單選題

_____________ we all know is that destroying nature means destroying ourselves.
A.whatB.WhichC.That D.It

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:單選題

_______ excited her parents most was that he was admitted to his dream college.
A.ThatB.WhatC.WhichD.It

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:單選題

_____ life exists on any other planet in the solar system still remains a question.
A.WhyB.Whether C.How D.Where

查看答案和解析>>

科目:高中英語(yǔ) 來源:不詳 題型:單選題

— Did you hear the news this morning?
— Oh, yes, _______ was announced on the radio has caused great excitement among the students.
A.thatB.whatC.a(chǎn)sD.it

查看答案和解析>>

同步練習(xí)冊(cè)答案