Archimedes and the golden crown阿奇米的原理的发现

1、ReadingArchimedes and the golden crown ask sb to do, make sb sth, be happy with began to doubt, be made ofsend to，ask to find out the truth seem difficult, think it over was still thinking about, as, fillwith when, got into, ran over excited, know how to solve the problem went straight to the palace

2、 to see weighed the crown, asked for some gold of the same weight put in one pot, put in the other pot, even more water a crown made of completely gold displaces less water than What a bad man! sent to prisonA2 Do you know anything about these great men? Tell your classmates.Aristotle亚里士多德 Aesop 伊索A

3、rchimedes阿基米德 Archimedes (287 BC - 212 BC), the great ancient Greek philosopher（哲学家）, mathematician（数学家）, physicist（物理学家）, mechanics（力学家）, founder of static and hydrostatics（静力学和流体静力学的奠基人）. He was born in Sicily Syracuse(西西里岛的叙拉古). He was good at thinking and liked the debate. Read some information

4、about Archimedes and have a short quiz.He travelled in ancient Egypt, and studied in the city of Alexander(亚历山大城). It is said that he lived in Alexandria time and invented the Archimedes screw(螺旋抽水机), still used today in Egypt. The Second Punic War, Rome army siege of（入侵） Syracuse, Archimedes finall

5、y killed by Rome soldier. He dedicated his life to science. He was loyal to the motherland. He should be highly respected and praised. Archimedes and the golden crownFast-reading(1): P2 B Look at the pictures and the title of the story on page 3. Then answer the questions below.While -reading1. Who

6、was the crown probably made for?2. What is Archimedes doing in the first picture?3. Why is Archimedes so excited?4. What is in the right pot in the second picture?He finally knows how to solve the Kings problem.The crown.King Hiero.He fill his bath with water and get into the bath.Archimedes and the

7、 golden crownFast-reading(2): P3 Read fast, and make it into three parts according to the following main ideas!Part 1: The king asked Archimedes to find out the truth of the crown.Part 2: Archimedes had an idea when he took a bath.Part 3: Archimedes checked the crown in his way.Line 16Line 713Line 1

8、432Put these pictures in the correct order.7 3 4 5 8 2 6 Detail-reading (1):D ComprehensionDetail-reading (2): Read the story again and answer the questions.1. Why did King Hiero send the crown to Archimedes?2. What happened when Archimedes got into the bath?3. What did the crown maker do to the cro

9、wn? Because the king wanted to know, “Is the crown made completely of gold?”Some water ran over.The crown maker tricked the king, the crown is not completely made of gold,but gold and another metal.One day, King Hiero asked a crown maker to make him a _ crown. At first, he _ very _ _ it. But later,

10、he began to _ it was a _ golden crown. So he sent the crown to Archimedes and asked hime to _ _ the _. Obviously, the problem _ very difficult to _. Archimedes thought it over and over as he _ his bath with water. Surprisingly, he got a good idea to find out the truth. He told King Hiero, “Im _ that

11、 the crown is not completely made of gold.” The king got very angry and sent the crown makder to _. goldenwashappy withdoubtrealfind out truthseemedsolvefilledcertainprisonArchimedes experimentStep 1 *_ the crown *Ask the king for some gold of _weightStep 2 * put 2 _ into 2 big bowls and filled both

12、 pots with _ * put the _ into 1 potsome water ran into the bowl * put the _ into the other pot even _ water ran into the bowlCon * A crown made compleltely of gold-clu displaces _ water than a sionscrown made of gold and another _ * A crown _ more water than gold of the same weight, so it was not a

13、real one.weighedthe samepotswatergoldcrownmorelessmetaldisplace *P5-D3: Discuss with your classmates.How did Archimedes find out that the crown was not made completely of gold?Post -reading (1):Discuss!What do you think of Archimedes ? What about the crown maker?Post -reading (2):Retell the story an

14、d act it out in groups!Post -reading (3):Archimedes and the golden crown ask sb to do, make sb sth, be happy with began to doubt, be made ofsend to，ask to find out the truth seem difficult, think it over was still thinking about, as, fillwith when, got into, ran over excited, know how to solve the p

15、roblem went straight to the palace to seeweighed the crown, asked for some gold of the same weightput in one pot, put in the other pot, even more water a crown made of completely gold displaces less water than What a bad man! sent to prisonLanguage pointsNotes 1. 对满意2.由制成3.找出真相4.把装满5.溢出6.跑出7.我确定8.把送

16、进监狱P4：9.把切成一半10.在和之间分配11.开始做，着手干12.对大为惊奇1. be happy with2. be made of3.find out the truth4. fill+容器 with+材料5. ran over6. run into7. Im certain that+句子8. send to prison9. cutin half10. divide between11. Go ahead!12. be amazed at难点句子：1. Its a nice crown, isnt it?2. The crown maker tricked me , didnt h

17、e?3. He began to doubt that it was a real golden crown.4. Thats it!5. A crown made completely of gold displaces less water than a crown made of gold and another metal.6. What a bad man he is!1. .King Hiero asked a crown maker to make him a golden crown.国王要工匠给他造一个黄金皇冠。ask sb to do sth 叫某人做某事ask sb no

18、t to do sth 叫某人不要做某事老师叫我把试卷整理好。The teacher asked me to sort out the papers.他让我不要在街上踢球。He asked me not to play the ball in the street. 2. “Its a nice crown, isnt it?”“这是一个很好看的皇冠，对吗？”“The crown maker tricked me, didnt he?”“工匠欺骗了我，对吗？”以上均为反意疑问句，规则：前句为肯定句，后句则为否定句；前句为否定句，后句则为肯定句。那个穿白色裙子的女孩是你的姐姐，对吗？The gi

19、rl in white dress is your sister, isnt she?3. .he began to doubt that it was a real golden crown. 他开始疑惑这是不是真的皇冠。划线部分为宾语从句。在句子中起宾语作用的从句叫做宾语从句。如：我不知道他住在哪里。I dont know where he lives.4. “Is it made completely of gold?” he wondered.他想知道这皇冠是不是完全由黄金制成的。 be made of意为“由做成（看得出原材料）”，区别be made from（看不出原材料），注意两

20、者的区别。试比较：这张桌子是由木头做成的。（看得出原材料是木头）This table is made of wood. 纸是由木头做成的。(看不出原材料是木头Paper is made from wood. 5. He sent it to Archimedes and asked him to find out the truth.他将皇冠交给阿基米德并要求他寻找真相。find out是指经过仔细研究查明find是指找的结果look for是指找的过程调查已经展开，以查明灾难是如何发生的。An investigation is underway to find out how the disaster happened.你会在书的前面找到那幅图片。 You willfindthe picture at the front of the book. 有些鸟在寻找食物。 Some birds are looking for food.6. A crown (made completely of gold后置定语修饰crown) displaces less water than a crown (made of gold