20.Some biologists believe this is an ancient survival strategy,_______ a diet with 30percent fewer calories than usual increased life span.( 。
A.for whichB.to whichC.of whichD.in which

分析 有些生物學(xué)家認(rèn)為這是一個(gè)古老的生存策略,在這個(gè)策略中,飲食比平時(shí)/平常少30%的卡路里可延年益壽.

解答 答案:D
該題考查定語從句,結(jié)合句意并分析結(jié)構(gòu),strategy為先行詞,___ a diet with 30percent fewer calories than usual increased life span為定語從句,結(jié)合答案,該題要用"介詞+關(guān)系代詞"引導(dǎo)定語從句,結(jié)合句意"在這個(gè)策略中",應(yīng)該譯為in this strategy,所以應(yīng)該用in 與關(guān)系代詞which搭配引導(dǎo)定語從句,故選D.

點(diǎn)評 考查定語從句,必須先對句子基本結(jié)構(gòu)進(jìn)行分析,否則先行詞,從句,及關(guān)系詞選用會(huì)出現(xiàn)錯(cuò)誤.

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