Question

11．昨天我到家時(shí)，他正在等我．
He was waiting for me when I reached home yesterday．．

Answer 1

分析 He was waiting for me when I reached home yesterday．

解答 答案：He was waiting for me when I reached home yesterday．這里是說昨天yesterday的事情用過去時(shí)，本句用復(fù)合句來表達(dá)，主句是他正在等我是過去正在發(fā)生的動(dòng)作，用過去進(jìn)行時(shí)was/were+doing，主語是he，故用was，等某人wait for，加上賓格me 我，故He was waiting for me，從句是when引導(dǎo)的時(shí)間狀語從句，表示當(dāng)…時(shí)候，主語是I，到家reach home，（reach到達(dá)時(shí)及物動(dòng)詞，后直接加地點(diǎn)）過去式是reached，故 when I reached home yesterday，故答案是He was waiting for me when I reached home yesterday．

點(diǎn)評(píng) 過去進(jìn)行時(shí)表示在過去某一時(shí)刻或某一段時(shí)間內(nèi)進(jìn)行或發(fā)生的動(dòng)作．其形式為 主語+was/were+V-ing．常與表示過去的時(shí)間狀語連用，如：last night，last Saturday等；或者與when，while，as引導(dǎo)的過去時(shí)間狀語連用．例如：We were watching TV from seven to nine last night．昨天晚上七點(diǎn)到九點(diǎn)的時(shí)候我們?cè)诳措娨暎甒hat was he researching all day last Sunday？上周日他一整天都在研究什么？