4.過去進(jìn)行時(shí)
概念: 表示過去某一時(shí)刻或某一段時(shí)間正在進(jìn)行的動(dòng)作. 這一特定的過去時(shí)間除了有上下文暗示外,一般用時(shí)間狀語(yǔ)來(lái)表示.
如: 1) ---What were you doing?
---I was jumping.
2) ---What was the boy doing when the UFO arrived?
---He was sleeping.
構(gòu)成: 主語(yǔ) + 助動(dòng)詞be(was/were) + 動(dòng)詞-ing形式構(gòu)成.
概念: 表示過去某一時(shí)刻或某一段時(shí)間正在進(jìn)行的動(dòng)作. 這一特定的過去時(shí)間除了有上下文暗示外,一般用時(shí)間狀語(yǔ)來(lái)表示.
如: 1) ---What were you doing?
---I was jumping.
2) ---What was the boy doing when the UFO arrived?
---He was sleeping.
構(gòu)成: 主語(yǔ) + 助動(dòng)詞be(was/were) + 動(dòng)詞-ing形式構(gòu)成.