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        1. ____ they ____ a cow yesterday?
          A.Did; milkedB.Did; milkC.Do; milkedD.Do; milk
          B

          試題分析:句意:昨天他們給奶牛擠奶了嗎?結(jié)合語(yǔ)境可知本句描述的是過(guò)去的動(dòng)作,故用一般過(guò)去時(shí)態(tài),一般過(guò)去時(shí)態(tài)疑問(wèn)句中一般用助動(dòng)詞體現(xiàn)時(shí)態(tài),行為動(dòng)詞用原形,故選B。
          點(diǎn)評(píng):英語(yǔ)中的時(shí)態(tài)主要是借助于時(shí)間狀語(yǔ)與上下文語(yǔ)境來(lái)進(jìn)行判斷。解答此類(lèi)題型,首先要注意句子中的時(shí)間狀語(yǔ),如果沒(méi)有則要通過(guò)分析上下文,結(jié)合語(yǔ)境來(lái)判斷句子的時(shí)態(tài)。英語(yǔ)疑問(wèn)句中一般具有時(shí)態(tài)上的對(duì)應(yīng)關(guān)系,注意結(jié)合這一特點(diǎn)進(jìn)行區(qū)分。
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