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2. by the time 直到…時候 

指從過去某一點到從句所示的時間為止的一段時間  如：

By the time we got to his house, he had finished supper.

在我們到達(dá)他就已經(jīng)吃完了晚飯。

    4)He said he _________(be)a teacher since 2000.

  (1) 構(gòu)成：由助動詞had + 過去分詞 構(gòu)成

           否定式：had not + 過去分詞   縮寫形式：hadn’t

  (2) 用法  過去完成時表示在過去某一時間或動作之前已經(jīng)發(fā)生或完成了的動作。

  (3) 它所表示的時間是“過去的過去”。

①表示過去某一時間可用by, before 等構(gòu)成的短語來表示

②也可以用when, before, after 等引導(dǎo)的時間狀語從句來表示

    ③還可以通過賓語從句或通過上下文暗示。

When I got there, you had already eaten you meal.當(dāng)我到達(dá)那里時,你已經(jīng)開始吃了。

By the time he got here, the bus had left. 到他到達(dá)這里時，汽車已經(jīng)離開了

We had finished cleaning the room by ten testerday.(by+過去點時間)

Exx: 1) By the time the firemen arrived,the big fire_____(put)out.

    2)He_______(go)to work after he ______(take)a shower.

    3)When I got to the theatre, the film ________(已開始)10 minutes.

1. 過去完成時

75.want to do sth想做某事            76.lose both A and B  失去A和B 

73.invit sb onto one's show   邀請sb上sb的節(jié)目       74.be thrilled非常興奮

71.across the country整個城市    72.TV star電視明星         

70.run to the local supermarket 跑去當(dāng)?shù)氐某��?/b>