When _______ help, one often says “Thank you.” or “It is kind of you “
A.offeringB.to offerC.to be offeredD.offered
D

試題分析:考查狀語(yǔ)從句的省略式。當(dāng)主從句的主語(yǔ)一致時(shí),可以省略從句的主語(yǔ)和be動(dòng)詞,when offered="when" one is offered….,可以用過(guò)去分詞作狀語(yǔ),邏輯主語(yǔ)為one,與offer故選為被動(dòng)關(guān)系,句意:當(dāng)被提供幫助的時(shí)候,一個(gè)人應(yīng)該說(shuō):“謝謝”或“你真好”。故選D。
點(diǎn)評(píng):當(dāng)狀語(yǔ)從句的主語(yǔ)與主句的主語(yǔ)一致,且狀語(yǔ)從句中有系動(dòng)詞be的時(shí)候,可以把狀語(yǔ)從句的主語(yǔ)和be動(dòng)詞一起省略。如果狀語(yǔ)從句中有it is的時(shí)候,it is 也可以省略。做這種題目可以用還原法。
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