1、 Unit 8 Natural disastersGrammar-Task一、教材分析：This lesson aims to make the students familiar with the structure of the past continuous tense.二、教学目标：1. To make sure the students become familiar with the past continuous tense.2. To recognize the past continuous tense with while/when/as.3. To learn to or
2、ganize ideas for writing an article for the school newsletter and to write an article about natural disasters. 三、教学重点: 1. To make the students familiar the past continuous tense.2. To learn the differences among the words：when, while and as.四、教学难点：1. To learn how to use the past continuous tense2. T
3、o learn to organize ideas for writing an article for the school newsletter and to write an article about natural disasters. 五、教学策略：1. Listening, reading and writing 2. Interactive method六、教学准备：ppt, tape七、教学环节：Step 1: Grammar1. Enjoy some pictures and talk about the past continuous tense.2. Explanati
4、on 1. 过去进行时主要表示： 在过去某一时刻正在进行的动作（a） They were eating breakfast at 7:00 a.m.yesterday.（b） I was writing a letter at this time yesterday.（c） Five minutes ago, Danny was looking out of the window and Suzy was reading a book. 在过去某段时间一直在进行的动作（a） From 1983 to 1998, he was teaching at Yale.（b） They were bui
5、lding a dam last winter.3. 过去进行时的句式（1）基本结构：was / were + V-ing（2）肯定句: 主语+was / were + V-ing（3）否定句：was / were not + V-ingwas not = wasntwere not = werent（4）疑问句：将 was/were 调到主语前（5）特殊疑问句：疑问词+was/were +主语 +V-ing4. Complete the conversation on page 97. Check the answers.5. Show some sentences and present
6、the usage of when / while / as.6. Explanationwhile, when and as都表示“当的时候” 。（1）当连接同时发生的两个延续性/长动作时，常用 while引导。（2）如果短暂性的动作是主句时，我们可以用 when, while 或 as 引导。（3）如果延续性的动作是主句时，我们经常用 when 来连接。（4）如果两个短暂性的动作同时发生，我们通常用 as 连接。注：当一个短暂性动作发生的同时伴随着一个延续性的动作，这时我们通常用过去进行时来表示延续性的动作，用一般过去时来表示短暂性的动作。Step2: Integrated skills1
7、. Show some pictures and present some useful telephone number.2. Do part A1 on page 99.3. Listen to the recorder and complete A2 on page 99.Check the answers.4. Listen to the recorder and complete A3 on page 100.Check the answers.5. Speak upListen to the conversation B on page 100.Answer the questio
8、ns.Step 3: Study skills1. Present some new words with pictures and read them aloud.2. Show some pictures and present combining words.3. Explanation单词的来源大致上分为五种：1）基本词 (base)2）合成词 (combining words)3）缩略词 (shortening words)4）拼缀词 (blending words)5）转类词 (shifting words) 合成词包括派生词（derivation）和复合词(compounding
9、 words)。所谓的复合词是将两个或者两个以上的词按照一定的次序排列构成的新词。我们只要认识作为成分的基本词，再结合上下文的语境，就不难推测出新词的意义。 4. Complete the exercises A, B on page101. Check the answers.5. Make new compound words as many as you can.Step4: Task1. Read the books by themselves.2. Learn some useful expressions.3. Complete the exercises on page103.4
10、. How to write about natural disasters1） Choose the topic 定题2） Choose materials 选材3） Make the list 列提纲4）Start to write 着手写作5. Write the introduction partDuring the disastera. What did you do?1) wore more clothes/rain coat/glasses2) called 110/119/120 hotline3) closed the door and windows 4) went to
11、high places b. What did you hear?heard strong wind/big noise/ thunderc. What did you see?saw the lightning/lots of smoke/sand /dark cloud/thick snow/ many peopled. What happened?1) be trapped/be frightened 2) lost my umbrella3) walked/drove/rode-slowly/hard4) fell down/over 5) crashed into After the
12、 disaster1) What did you see?saw people removing the snow/cleaned the way/ sent the victims to the hospital/got something from the flood-2) What did you hear?screamed / shouted / calmed down 3) How did you feel?frightened /excited/terrible/in fear/ worried / sad/ thankful 6. Try to write an article.
13、Play a game. Try to find out the mistakes.Show some of their articles.Step5: Practice1. I _ my homework when Mike_ last night.昨天晚上迈克来的时候我正在写作业。2. While Ann _ TV, her father _ home.安正在看电视时，她父亲回来了。3. What were you doing when I _ at the door?我敲门的时候你在干什么？4. She _ the room when I _ to see her.我去看她的时候她不是在
14、打扫房间。5. I _ my vocation in England (at) this time last summer.去年夏天的这个时候我正在英国度假。Step 6: HomeworkReview all the new words and language points in this unit. 八、板书设计Unit 8 Natural disastersGrammar points: was/were doingwhile/when/ascreating new wordsKey phrases: as soon as possible cover your mouth and nose with a wet towelon railways be on fire stay away from share sth. with sb.keep doing sth. hear doing sth.get on / off九、教学反思：
