2019屆高考英語選修8 Unit 4頂尖復習教案
答案：in the long term
句型梳理
1【教材原句】 but，sir，(proudly)once educated to speak properly，that girl could pass herself off in three months as a duchess at an ambassador’s garden party.(p30)
但是，先生，一旦被教以恰當的談吐方式，這個女孩在三個月后就可以冒充大使花園聚會上的貴婦人。
【句法分析】 (1)once可作連接詞，引導條件狀語從句，意為“一旦……就……”。
①once you have made up your mind，you should stick to it.
一旦你下定決心，就應該堅持下去。
②we didn’t know what to do next once the money had run out.
一旦錢花光了，我們就不知道下一步做什么了。
③(福建高考)you will be successful in the interview once you have confidence.
一旦你有信心，你面試就能成功。
(2)狀語從句的省略。
由once，if，as，unless，when，though，although等引導的狀語從句，如果主句主語和從句主語一致，且從句中謂語動詞是be＋v.ed或v.ing形式，或從句中主謂結構為it is(was)＋adj.時，其從句結構可省略為以上連詞加v.ed，v.ing或adj.。
④once the time is set，it cannot be changed.
＝once set，the time cannot be changed.
時間一旦被設定就不能更改。
⑤when i was waiting for a bus，i met tom.
＝when waiting for a bus，i met tom.
我在等車時碰到了湯姆。
⑥though he was young，he knew a lot of english.
＝though young，he knew a lot of english.
盡管年齡很小，但他懂得很多英語。
[即境活用]
10.________environmental damage is done，it takes many years for the ecosystem(生態系統)to recover.
a.even if b.if only
c.while d.once
解析：選d。once作連詞，引導條件狀語從句。句意：一旦環境遭到損害，就需要許多年才能使生態系統恢復。even if 引導讓步狀語從句，意為“即使”；if only 意為“要是……就好了”，引導感嘆句，句中的謂語動詞常用虛擬語氣；while 意為“當…… 的時候”，引導時間狀語從句。
11.—how are they getting on with their work?
—all goes well as_________.
a.to be planned b.being planned
c.planned d.planning
解析：選c。考查狀語從句的省略。此處as后面省略了it was。
2【教材原句】 henry higgins and colonel pickering are sitting deep_in_conversation.(p34)
亨利•希金斯正與皮克林上校坐著進行深入的交談。
【句法分析】 deep in sth.專心；全神貫注；深陷；形容詞短語作伴隨狀語。
①he was deep in thought when i saw him.
我看見他時他正陷入沉思。
②he is often so deep in his books that he forgets to eat.
他常常專心于讀書以致忘了吃飯。
③absorbed in the book，he didn’t notice me enter the room.
陷入讀書之中，他沒注意到我進入房間。
12.(XX年高考安徽卷)________，she is the sort of woman to spread sunshine to people through her smile.