9A Unit 1 Reading

1、9A Unit 1 Reading Crown-maker in prison!Topic: Unit 1 Reading : Crown-maker in prison!Time: 40 minutesTeaching Objectives: 1. Enable students to comprehend the reading text and get a basic knowledge about the historical story about Archimedes, emphasizing using scientific knowledge to solve a proble

2、m.2. Practice students scanning, skimming, and speaking skills.3. Enable students to understand the usage of simple past tense.Teaching Goals:1. Enable the students to improve their cooperative ability by joining group work（discussion）. 2. Encourage students to use scientific knowledge to solve prob

3、lems when necessary.3. Activate the students interest of learning English by using many kinds of classroom activities.Teaching difficult pointsHow to help students to remember new words and phrases effectively.How to get all the students involved and open their mouth to practice.Teaching methods1Bra

4、instorm and discussion 2. Situational approach method3. Task-based teaching Teaching aids1. the multimedia 2. the blackboard3.any relative props (道具) Procedures:Step 1: pre-reading: lead-in（5 mins）There are many historical stories full of wisdom, such as 草船借箭，田忌赛马，(图片)曹冲称象. Do you know how Caochong

5、weigh an elephant?How did he know how heavy the elephant was?To tell the main story: He drove the elephant onto a boat. And make a mark on the boat. Then he asked people to displace the elephant with stones until the water reached the mark. After weighing the stones, they got to know the weight of t

6、he elephant.Step 2: while-reading ( 25 mins in total) Today we are going to learn another story about Archimedes (阿基米德)Who is Archimedes ？ （图片）-a famous scentist.What is it ? A crown What is made of? Gold Is it made completely of gold? How can we know if it is made completely of gold?Ask students to

7、 read the text and try to find out the answers to the following questions.(5 mins)Read the part 1 of the story, and answer the questions. (小黑板)1. What did the king ask the crown maker to do? He asked him to make him a gold crown.2. Who did the king send the crown to? Why? He sent it to Archimedes to

8、 make sure it was made completely of gold.3. When did he think about the problem? He thought about the problem while a slave poured some water into a bath for him.Part 24. What did he find at that time? He found some of water will move out when we put an object in water. (移出)5. What did Archimedes s

9、hout when he got the idea? Thats it. (正是如此，就是这样，好了，够了，对了)6 How did he feel? How excited he was!Part 37.Where did he put the crown? He put it in a pot of water and 5 cm of water came out.8. Then what did he put in another pot of water? He put one kilogram of gold in another pot of water, and 3 cm of

10、water came out. We can know it is not made completely of gold.9. what was the crown made of It was made of both gold and silver.Step 3. B3 (p52)Step 4. Presenting useful expressions.(10 mins)1.be made of (原材料可见) be made from(原材料不可见)1）. paper _ _ _ wood.2）. Chairs _ _ _ wood.2.send sth to sb意为“将送给某人”

11、，与send sb sth意思相同。Please send my love to your mother. 请向您的母亲问候。Please send your mother my love.send sb to prison (地方) “将某人送入大牢”。如：The judge sent him to prison for robbery. 3.displace v. 置换；移置；顶替；取代Grasses seem to displace other plants. 杂草越来越多，有取代其他植物之势。【近义】take the place of顶替；代替 instead of8.while “当

12、时， 在那时”While I was watching TV, the doorbell rang. 我看电视时，门铃响了。Meimei watched TV while she ate her supper. 梅梅边吃晚饭边看电视。9.pour into 意为“将倒入中”。如：在瓶子中倒入一些牛奶。Pour some milk into the bottle.10.Thats it.是一句常用的口语。其主要用法有：1）Thats right，意为“对；正是如此”。如：A: Shes going to marry the doctor。B:Thats it. 正是这样。2）“问题就在这里”。A

13、:Were in great need of a computer. B:Yes, but we havent got enough money. A:Thats it. 问题就在这里。3）表示结束，意为“完了；就这样；没有别的了”。如：You can have a cake and thats it. 你可以吃一块蛋糕，别的就没有了。4）表示反感或失望，意为“够了；得了；好了；算了”。Thats it. Havent you said enough? 好了！你说够了没有？5）表示赞同或鼓励，意为“对了；就这样；这就对了”。Thats it. Lets tell her the news wh

14、en we see her. 11.move out的本意是“搬家”，在本例中是“移出”的意思。如：Move out of the way, please: I cant see through you. 请借过，你挡著我就看不见了。The original owner of the house moved out. 房子原先的主人搬出去了。 12.kilogram /'klræm/ n. 千克；公斤 She weighs 50 kilograms/kg. 【提示】kilogram的缩略形式是kg。复数时，kg后不加s，但kilogram后需加s。kilogram是个合成词，

15、kilo-这个前缀表示“千”的含义，gram为“克”。又如kilometre中“千米；公里” Step 3: post-reading (10 mins in total)Role play: act out an dialogue in pairs (desk mates)Now student A acts as a reporter. He went to the jail to ask the crown- maker some questions.Student B acts as the crown-maker. Example: Reporter: Excuse me, Mr.

16、crown-maker. May I ask you some questions? Crown-maker: Yes, please.Reporter: Who asked you to make a crown? - The king Hiero Who did the king send the crown to? Why?-he sent it to Archimedes to weigh the crown. Where did he put the crown in? -a pot of water What else did he put in another pot of wa

17、ter? -a kilogram of gold What did he find? Was it made completely of gold? -No. What was it made of? -It was made of both of gold and silver. What did the king do then ?-He became very angry and sent me to prison. Crown-maker: -ConsolidationCopy the new words and expressions.Re-read the tale and try to retell the story.If possible, find some more interesting tales from the internet. New words and expressions.ask s