Some researchers believe that there is no doubt ____ a cure for AIDS will be found.
A.whichB.thatC.whatD.whether
B

試題分析:考查同位語從句:句意:一些研究人員相信艾滋病的療法肯定會被發(fā)現(xiàn)的。Doubt是同位詞,因為是否定句,所以用that連接的是同位語從句,對doubt的內(nèi)容進行說明,that不做成分,只起到連接的作用,如果是肯定句,就是用whether連接同位語從句。選B。
點評:解答這類題目,關(guān)鍵在于分析清楚句子結(jié)構(gòu),知道引導詞的使用習慣。通過判斷引導詞在從句中所作的成分,來選擇正確的引導詞。連接同位語從句的從屬連詞主要有that, if, whether,和疑問詞(what how where when ...)。that引導表示陳述句的同位語從句,if和whether,whether...or not引導表示“是否”的一般疑問句的同位語從句。
練習冊系列答案
相關(guān)習題

科目:高中英語 來源:不詳 題型:單選題

At the foot of the mountain _______.
A.a(chǎn) village lieB.lies a village
C.does a village lie D.lying a village

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

Only when we failed ________ the importance of study.
A.we realizedB.we had realizedC.did we realizeD.had we realised

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

Only when you experience the bad earthquake taking place in Si Chuan______ the importance of life.
A.can you understandB.a(chǎn)re you understand
C.do you understandD.did you understand

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

Every year a great number of foreign tourists pay a visit to _____ we Chinese call Heaven Lake.
A.whereB.whichC.whatD.that

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

_____ and caught the mouse.
A.Up the cat jumpedB.Up jumped the cat
C.The cat up jumpedD.Jumped up the cat

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

Only when they were told the date of the wedding ,____ their daughter would get married.
A.realized theyB.did they realized
C.did they realizeD.they did realize

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

Jerry has promised to keep the secret, so he won’t tell anyone even though ______.
A.a(chǎn)sking toB.to be askedC.to askD.a(chǎn)sked to

查看答案和解析>>

科目:高中英語 來源:不詳 題型:單選題

____ about the man wearing sunglasses during night that he was determined to follow him.
A.So curious the detective wasB.So curious was the detective
C.How curious was the detectiveD.How curious the detective was

查看答案和解析>>

同步練習冊答案