6．Don't put off till tomorrow _______ you should do today!（　�。�
A．whatB．whenC．thatD．which

分析 不要把今天應(yīng)該做的事情推到明天．

解答 答案：A
題干中you should do today是作put off的賓語(yǔ)，是一個(gè)賓語(yǔ)從句；賓語(yǔ)從句中do缺少賓語(yǔ)，要用連接代詞；which在賓語(yǔ)從句中表示有范圍的選擇，句意表達(dá)的是不具體的事情，不是表示選擇．故選A．

點(diǎn)評(píng) 從屬連詞是連詞的一種，用來(lái)引導(dǎo)名詞性從句和狀語(yǔ)從句．大致可分為三大類：that（無(wú)詞義，不做成分）if，whether （表達(dá)是否的意義，但不做句子成分）； 連接代詞：who，whom，whose，what，which，whatever，whoever，whichever（有詞義，在句子中可作主語(yǔ)、表語(yǔ)、賓語(yǔ)）；連接副詞：when，where，why，how，how many，how long，how far，however，whenever，wherever （有詞義，作從句的狀語(yǔ)）．學(xué)習(xí)時(shí)，要注意區(qū)分和掌握．

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