Question

【題目】My mother was cooking_____ I left home

A. when B. while C. until D. as soon as

Answer 1

【答案】A

【解析】

句意：我離家時(shí)我媽媽正在做飯�？疾檫B詞辨析。A. when當(dāng)…時(shí)候；B. while當(dāng)…時(shí)候；C. until直到；D. as soon as一….就…。while引導(dǎo)時(shí)間狀語從句時(shí)，表示一段時(shí)間，從句時(shí)態(tài)一般用進(jìn)行時(shí)態(tài)，動(dòng)詞為延續(xù)性動(dòng)詞；when引導(dǎo)時(shí)間狀語從句，既可表示一段時(shí)間也可表示時(shí)間點(diǎn)，主句時(shí)態(tài)一般用進(jìn)行時(shí)態(tài)，從句用一般時(shí)態(tài)；本句主句是過去進(jìn)行時(shí)，從句是一般過去時(shí)，結(jié)合句意可知填when；選A。