Question

20．When the baby dog____，it was very hungry．So we gave it some food．（　�。�

• A． is found
• B． was found
• C． has been found
• D． will be found

Answer 1

分析 當(dāng)那只小狗被找到的時(shí)候，它非常餓，所以我們給了它一些食物．

解答 答案：B．
首先根據(jù)后面的it was very hungry，結(jié)合句意"當(dāng)那只小狗被找到的時(shí)候，它非常餓，所以我們給了它一些食物．"判斷設(shè)空處句子中的謂語(yǔ)動(dòng)詞用一般過(guò)去時(shí)，主語(yǔ)the baby dog是動(dòng)作find的承受者，表示"被找到"，所以用被動(dòng)語(yǔ)態(tài)，一般過(guò)去時(shí)被動(dòng)語(yǔ)態(tài)的構(gòu)成是：主語(yǔ)+was/were+動(dòng)詞的過(guò)去分詞，主語(yǔ)是單數(shù)名詞，be動(dòng)詞用was，故選B．

點(diǎn)評(píng) 本題考查時(shí)態(tài)和語(yǔ)態(tài)．每個(gè)時(shí)態(tài)都有標(biāo)志詞，熟記這些標(biāo)志詞是做題的關(guān)鍵．在沒(méi)有時(shí)間狀語(yǔ)的情況下可以根據(jù)語(yǔ)境來(lái)對(duì)時(shí)態(tài)做出判斷．判斷語(yǔ)態(tài)的關(guān)鍵則是觀察主語(yǔ)是謂語(yǔ)動(dòng)詞的執(zhí)行者還是承受者．