Module 5 Newspapers and MagazinesLearning paper 4 GrammarLearning aims: 1. To master the use of adverbial clause of time 2. To know the use of adverbial clause of reasonImportant and difficult points: 1. when, while and as2. because, since, as, now thatI. 时间状语从句1. when 引导的从句表示主句的动作和从句的动作同时发生，或从句的动作在主句之前，或之后发生。从句谓语动词可用非延续性的也可用延续性的。It was raining when we arrived. (动作同时)When you read the poem a second time, the meaning will become clearer to you. (从句动作在主句动作之前)The train had left when I got there. (从句动作在主句动作之后)2. while 引导的从句表示“在……过程中”强调某一段时间内主句和从句同时发生，常用延续性动词。Don’t talk so loud while others are working.While he was eating, I asked him to lend me $2.3. as 引导的从句表示“当…时”或“一边…一边”；主句和从句的动作同时发生，强调伴随，有时译为“随着”。As we walked, we talked.As I get older, I get more optimistic.4. as soon as, the moment 后接时间状语从句，表示“一……就……”I recognized her the moment I saw her.As soon as the rain stopped, they left.Practice:1. ---Did you remember to give Mary the money you owed her?---Yes, I gave it to her ______ I saw her.A. while B. suddenly C. once D. as soon as2. (2004.春季) We were swimming in the lake _______ suddenly the storm started. A. when B. while C. until D. before3. A person doesn’t necessarily grow wiser _______ he grows older.A. as B. with C. since D. while4. ________ the weather of the country increases, more waste will be produced.A. As B. When C. While D. With5. He was walking along the sands ________ he saw a big footprint in the sand.A. while B. when C. as D. whichII. 原因状语从句引导原因状语从句常用的连词有：because, since, as, now that1. because...
