14．My e-mail______to you last night．Have you received it____？（　　）
A．sent；yetB．is sent；alreadyC．was sent；yet

分析 昨晚我已經(jīng)把郵件發(fā)給你，你收到我的郵件了嗎？

解答 答案為C．這一題可以用排除法來(lái)篩選答案． last night這一個(gè)短語(yǔ)可以推測(cè)句子要用過(guò)去時(shí)態(tài)，故可以排除B選項(xiàng)．e-mail郵件是被發(fā)送出去，是send的動(dòng)作承受者，所以要用被動(dòng)語(yǔ)態(tài)，故可以排除A選項(xiàng)．a(chǎn)lready 與yet 都可以表示"已經(jīng)"，但兩個(gè)還是有區(qū)別，區(qū)別是：already 是用于肯定句，yet是用于否定句和疑問(wèn)句．所以正確答案為C．

點(diǎn)評(píng) 這一題主要考學(xué)生對(duì)句子時(shí)態(tài)的判斷，yet與already這兩個(gè)單詞的區(qū)別這些知識(shí)點(diǎn)的掌握．

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