外研版必修2Module5學案
② it was the first time that…過去完成時態(tài)…
.這是我第一次參觀北京
7.區(qū)別：it is +……+that…… it is+時段+since…..it will be+時段+before….. it is+時點+when…..
it won’t be long__________we meet again. it was seven o’clock________ tom came back. it was at seven o’clock__________ _tom came back. it has been three years________ they parted from each other.
2. 原因狀語從句
conj：because, since, as, for，when (既然),in that(在于)，now that(既然)，seeing that,considering that(考慮到，鑒于),not that….but that…(不是因為….,而是因為…)prep：for, because of,given,considering
because引導的從句位于主句之后或之前， because表示直接原因， 語氣最強， 回答 why引導的疑問句,強調(diào)句中用because 引導。
since主句之前，表示已知的、 顯然的理由(通常被翻譯成“既然”)， 較為正式， 語氣比because弱。
as 表明顯的原因，語氣弱，位于句首，句末。
for 引導并列分句，位于句末，用逗號與主句隔開，對前面的主句內(nèi)容加以解釋。for所提供的理由是一種補充性的說明，表示推測的理由。
it’s daybreak, _____ the birds are singing. ______you have no license,you are not allowed to drive.
it’s _______it’s daybreak that workers begin to work.
the plane was delayed because the fog was thick.=the plane was delayed ______________the thick fog.
they did the job quite well,________ that they had no experience.
i have not finished writing the report yet,not that i’m lazy, but that i have no time.
it might have rained last night_____ the ground is wet.
______that the kids have left home， we have a lot of extra space.
practice
1. it was evening we reached the little town of winchester.
a. that b. until c. what d. before
2. we were told that we should follow the main road we reached the central railway station.
a. while b. until c. while d. wherever
3. several weeks had gone by i realized the painting was missing.
a. as b. before c. since d. when
4. don’t be afraid of asking for help it is needed.
a. unless b. since c. although d. when
5. he made a mistake, but then he corrected the situation it got worse.
a. until b. when c. before d. as