约2200字。

　　Unit 3  Language in use
　　深海章鱼
　　一．Teaching model
　　Learning and speaking
　　二．Teaching method
　　Communicative approach
　　三．Teaching aims: 学习目标
　　掌握好时间状语从句，会运用好when ,while, before , as soon as, since引导的从句语法分析:用句子来表达一件事或一次行为发生的时间的，在英语里这个句子叫做时间状语从句
　　1. when 连接的时间从句when 当……的时候 When I feel tired, I will have a rest.
　　2. Before / after 连接的时间状语从句before 表示“在、、、之前”after 表示 “ 在、、、之后”
　　He turned off the TV before his mother came back home. 在他母亲回家之前。他把电视关了。
　　They went out for a walk after they had a meal在吃完饭后，他们出去散步了。
　　3. as soon as 连接的时间从句as soon as 表示“一……就……”强调动作紧密相连。
　　He picp the phone as soon as it rang电话一响他就拿起来。
　　4. while连接的时间从句
　　while连接时间状语时，表示言主句的行为在从句行为过程之中发生。由于while从句表示一个持续的行为。所以从句中要用持续性动词或状态动词，并且持续性动词常用进行时态。 The mother did some washing while her baby was sleeping.
　　当婴儿在睡觉时，母亲洗衣服。
　　5 as soon as连接的时间状语从句中，指未发生的动作，规律是：主句一般将来时，从句用一般现在时代替一般将来时(主将从现)
　　如：I will tell him the news as soon as he comes back。
　　他一回来我就把这个消息告诉他。
　　指紧接着发生的两个短动作，主从句都用一般过去时
　　He toot his English books as soon as he sat down.
　　他一坐下就拿出了他的英语书。
　　四． Exercise
　　单项选择
　　（    ）1 All the students went home _____ school was over.
　　A before B since C as soon as D while
　　（    ）2 You will feel much better _____ you take the medicine.
　　A before B after C when D while
　　（    ）3 ____ we were playing football , they were playing volleyball.
　　A until B When C If D while
　　（    ）4 How long have you been there
　　A For one year B Last year C Since two years D Before
　　（    ）5 Do you know how_______________
　　A do they celebrate the festival B they do celebrate the festival
　　C they celebrate the festival D they celebrate the festival do
　　（    ）6 I ______ my homework while my parents _____TV last night.
　　A did. / have watched B was doing/ were watching
　　C had done/ were watching D would do/ were
　　（    ）7 My grandma didn’t go to sleep ____ got back home.
　　A where B until C as soon as D while
　　（    ）8_____ did you see a cat from behind the door?  As soon as I entered the room.
　　A what B When C Where D Why
　　（    ）9 It was raining ________I were waiting for you.
　　A after B while C before D until
　　（    ）10 _____ he finished his work , he left his office.
　　A Before B After C Until D While
　　参考答案