Question

18．我昨天給你打電話的時(shí)候，你在干嘛？
What were you doing when I called you yesterday？．

Answer 1

分析 What were you doing when I called you yesterday？

解答 答案：What were you doing when I called you yesterday？
這里用when引導(dǎo)的時(shí)間狀語(yǔ)從句來(lái)表達(dá)，從句我昨天給你打電話的時(shí)候，表達(dá)的是昨天yesterday的事情用一般過(guò)去時(shí)，主語(yǔ)I，打電話call sb，故 when I called you yesterday，主句表達(dá)的是過(guò)去正在進(jìn)行的動(dòng)作用過(guò)去進(jìn)行時(shí)was/were+doing，主語(yǔ)you，故were，這里是特殊疑問(wèn)句，what什么，作為疑問(wèn)詞，后加一般疑問(wèn)句語(yǔ)序，were提前，故答案是What were you doing when I called you yesterday？

點(diǎn)評(píng) 過(guò)去進(jìn)行時(shí)表示過(guò)去某一段時(shí)間或某一時(shí)刻正在進(jìn)行的動(dòng)作．常與之連用的時(shí)間狀語(yǔ)有，at that time/moment，（at） this time yesterday （last night/Sunday/week„），at+點(diǎn)鐘+yesterday （last night/Sunday„），when sb．did sth．等時(shí)間狀語(yǔ)從句，如：1）What were you doing at 7p．m．yesterday？昨天晚上七點(diǎn)你在干什么？
  2）I first met Mary three years ago．She was working at a radio shop at the time．我第一次遇到瑪麗是在三年前，當(dāng)時(shí)她在一家無(wú)線電商店工作．   3）I was cooking when she knocked at the door．她敲門時(shí)我正在做飯