17.How many English words____you____by the end of last term?( 。
A.had;learntB.have;learntC.did;learnD.are;learnt

分析 到上學(xué)期末為止,你們已經(jīng)學(xué)習(xí)了多少個英語單詞了?

解答 答案:A.
根據(jù)時間狀語by the end of last term判斷用過去完成時.句意是"到上學(xué)前末為止,你們已經(jīng)學(xué)習(xí)了多少個英語單詞了?"過去完成時的構(gòu)成是:主語+had+動詞的過去分詞; 故答案為A.

點(diǎn)評 本題考查了動詞的時態(tài).做題時,一定要特別關(guān)注有關(guān)的時間短語,這是判斷句子時態(tài)的標(biāo)志.在沒有時間狀語的情況下可以聯(lián)系上下文根據(jù)語境來做出正確判斷.

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