《Module3Grammar课件优质公开课外精》由会员分享，可在线阅读，更多相关《Module3Grammar课件优质公开课外精（11页珍藏版）》请在金锄头文库上搜索。
1、Module 3MusicGrammar 1Adverbial clause of timef状语从句9状语从句在句中起状语作用，修饰主句的 谓语动词、形容词、副词或整个句子。状语从句按用途可分为时间状语从句、地 点状语从句、原因状语从句、条件状语从 句、目的状语从句、结果状语从句、让步 状语从句、比较状语从句和方式状语从句。when, while与as引导的时间状语从句1. when可指一段时间，也可指某个具 体时间，所以when引导的从句的谓语 动词可以是延续性动词，也可以是瞬 间动词。它所引导从句的动作可以与 主句的动作同时发生、先于或者后于 发生。如：When she flnished
2、 her homework, she went to the supermarket with her friend When he got to the station, the train had already left.When I lived in the countryside, I used to carry some water for himf注意：主句为将来时的时间状语从句， 常用when来引导，时间状语从句用现 在时表示将来时。如：When the president comes here for a visit next month, Fll give the welc
3、ome speech2. while只能表示持续性的动作或状态，不 能表示暂时性或短暂性的动作。所以while 往往与延续性动词连用，不与瞬间动词连 用，且谓语动作通常与主句的谓语动作同 时发生。如：While Fm running, Vm thinking about all sorts of things about my futureWhile my mom was cooking in the kitchen, I was watching the latest movie in my room.3. as表示“随着；一边，一边 ”。当主句、从句动作同时进行，从 句动作的时间概念淡化，
4、而主要表示主句 动作发生的背景或条件时，只能用as。as所表示的动作具有延续的含义，一般同延续性动词连用，通常是和主句的谓语动 作同时发生，不可以在主句的谓语动词的 之前或者之后。如：As he grew older, he began to go deaf.f4. when, while与as可通用的情况when, while与as都表示主、从句的动作或 状态同时发生，当从句中的谓语动词为持 续性动词时，这三者可以互相通用。如：When / While / As the teacher wasdiscussing the topic with us9 the headmaster came
5、in.、9after, before与by引导的时间状语从句1. after所引导的从句通常发生在主句的 动作之前，如果主句用过去时，那么 从句的句子动作就要用过去完成时， 以便体现动作发生的先后。before引导的从句的动作通常发生在 主句动作之后，如果从句是过去时， 主句一般要用过去完成时。如：After we had flnished the work, we went homeThousands of teenagers had already got there before the superstar arrived 2“by+时间名词”意思是“到时为 止，在时之前”。例如，by
6、the time引导的时间状语从句的谓语动词如果用一 般过去时，主句的谓语动词用过去完成时by the time引导的时间状语从句的谓语动词如果用一般现在时，主句的谓语动词 用将来完成时。例如：By the time you came back, I had flnished this bookBy the time you come here tomorrow,I will have flnished this workRecall the sentences from Reading and Vocabulary and then fill in the blanks.1 When it
7、was performed in America, there was an audience of 100,000 people.2. Whn he was very young, Mozart had a lot of musical talent3. Whik he was still a teenager, he was a big star.4 As he grew older, he began to go deaf.9Match the two parts of each sentence.1. When Mozart was very young,2. By the time
8、he wa a teenager,3. While he was Vienna,4. As Beetlyven grew older,a) he found it more difficult to compose good music.)he learnt to play the harpsichord )he performed for the Empress.)he was performing concerts all over Europe.Grammar 2The past perfect tense过去完成时1.过去完成时表示过去某一时间或 动作之前已经发生或完成的动作。 它表示
9、动作发生的时间为“过去的 过去”。例如：After they had become stars in their own country, the Beatles toured the United States.By the end of last month, we had learned twelve English songsf2.过去完成时表示在过去某一时间 之前已经开始并一直持续到那时的 动作或状态。如：We luidn 7 seen each other since Ileft my hometown.注意：11过去完成时由“助动词had +过去分词” 构成。过去完成时常与by, for, before, since 等介词短语或由after，before, since, when, by the time等引导的訂间状语从句连用。如:By the end of last year, we had learned seven hundred English words.They hadnt finished their work when I arrived at the office
