外研版高中英語(yǔ)選修7module4musicborninamericagrammar課件1-wenkub
2022-11-29 13:07:56 本頁(yè)面
【正文】 C. until D. when 4) Not until all the fish died in the river ___ how serious the pollution was.(NMET95) A. did the villagers realize B. the villagers realized C. the villagers did realize D. didn?t the villagers realize *如果 before引導(dǎo)的從句位于主句之后，有時(shí)不能譯成“在 … 之前”，而要譯成“就”、“才” 等。如： 1)____ modeling business is by no means easy to get into, the good model will always be in demand.(?04浙江） A. While B. Since C. As D. If 2)_____ I accept that he is not perfect, I do actually like the person.(?04江蘇） A. While B. Since C. Before D. Unless When和 while（并列連詞）， while表示對(duì)照的意思。 He hurried home, looking behind as he went. I saw your sister as she was getting on the bus yesterday. He sang as he walked. While：指的是“在某一時(shí)間里”，“在 … 期間”，從句里的動(dòng)作必須是持續(xù)性的，它也強(qiáng)調(diào)主句和從句動(dòng)作的同時(shí)發(fā)生，往往側(cè)重主句和從句動(dòng)作的對(duì)比。 （ 1） when, as, while （從屬連詞） when即可引導(dǎo)持續(xù)性動(dòng)作，又可引導(dǎo)短暫性動(dòng)作。狀語(yǔ)從句 狀語(yǔ)從句在主從復(fù)合句中修飾主句中的動(dòng)詞，形容詞或副詞，按意義可分為 時(shí)間、地點(diǎn)、原因、目的、結(jié)果、條件、方式、比較、讓步 等狀語(yǔ)從句。它可以表示主句的動(dòng)作和從句的動(dòng)作同時(shí)發(fā)生，或從句的動(dòng)作發(fā)生在主句動(dòng)作之前。 如： While he was in London, he studied music. While we were watching TV, he was writing a position. 當(dāng) when, as, while表示“在 … 一段時(shí)間里”，主從句的動(dòng)作同時(shí)發(fā)生時(shí)，可以換用。When 表示“這時(shí)，突然 …” 1) I do every single bit of housework____ my husband Bob just does the dishes now and then.(?04廣西） A. since B. while C. when D. as 2) He was about to tell me the secret____ some one patted him on the shoulder. (?02上海 ） A. as B. until C. while D. when 3) We were swimming in the lake ____ suddenly the storm started.(?04北京春招 ） B. while C. until D. before 4) Jasmine was holidaying with her family in a wildlife park____she was bitten on the leg by a lion.(?04上海 ） A. When B. while C. since D. before (2)till和 until ① 如果主句謂語(yǔ)動(dòng)詞是持續(xù)動(dòng)詞，通常用肯定式的主句，表示“直到 … 為止”。如： The struggle lasted four years before the North won in the end. He almost knocked me down before he saw me. 1) Someone called me up in the middle of the night, but they hung up ____ I could answer the phone.(?00全國(guó)） A. as B. since C. until D. before 2) He made a mistake, but then he corrected the situation ___ it got worse.(?03北京） A. until B. when C. before D. as (3)before “在 … 之前” Before I came downstairs I had prepared myself very carefully for what I must say. 3) Scientists say it may be five or six years____ it is possible to test t
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