(2014年北京市西城區(qū)高三5月二模試題)23. It’s been discovered in the study ______ people are more relieved after forgiving others.
A.thatB.whatC.whichD.whose
A
本句中的it是形式主語,that引導的是真正的主語從句,that在這個主語從句中u充當任何成分,只是一個引導詞而已。句意:在研究中人們已經(jīng)發(fā)現(xiàn)在原諒別人以后人們更加寬慰。BCD三項都要在句中做成分的。故A正確。
【試題延伸】主語從句是在復合句中充當主語的從句,通常放在主句謂語動詞之前或由形式主語it代替,而本身放在句子末尾。解答這類題目,關鍵在于分析清楚句子結(jié)構(gòu)。通過判斷引導詞在從句中所作的成分及意義,來選擇正確的引導詞。連接主語從句的從屬連詞主要有that, if, whether,和疑問詞(what how where when ...)。that引導表示陳述句的主語從句,if和whether,whether...or not引導表示“是否”,引導一般疑問句。連接代詞主要有who,whom,whose,what,whoever,whomever,whosever,whatever,whichever等。
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