数字化学习环境下的学习组织与评价作业

1、Unit 1 Wise men in historyReadingArchimedes and the golden crownDo you know anything about these great men? Tell your classmates. Archimedes阿基米德Archimedes(287 BC 212 BC) was an ancient mathematician, physicist, engineer, inventor and astronomer(天文学家). One of his contributions to physics is an explan

2、ation of the principle of the lever (杠杆原理).Do you know anything about these great men? Tell your classmates. Aesop伊索Aesop (620 BC 564 BC) was an ancient Greek story teller and the creator of Aesops Fables. Some of the tales widely told are “The Farmer and the Viper” (农夫和蛇), “The Fox and the Crow” (狐

3、狸和乌鸦) and “The Tortoise and the Hare” (龟兔赛跑).Unit 1 Wise men in historyShow TimeEach group have 1 minute What do you know about? Try the short quiz below. Circle the correct answers.Which of these ancient countries is in Europe?a. Greece.b. Egypt.2. Which of these people lived in ancient Greece?a. A

4、rchimedes.b. Julius Caesar.3. What was Archimedes?a. A scientist.b. A painter.4. Archimedes died in 212 BC. How long ago was that?a. About 1,800 years ago. b. About 2,200 years ago.Before-readingBefore you readLook at the pictures and the title of the story onpage 3. Then answer the questions below.

5、1. Who 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?It was made for King Hiero.He is taking a bath.Because he probably had a good idea.It is the crown.WhenWhereKingWhat to doHow to f

6、eelWhat happened to the kingone dayin ancient GreeceHieroAsked a crown maker to make him a golden crownHe was very happy with it.He began to doubt that it was a real golden crown. He sent it to Archimedes and asked him to find out the truth.While readingSkimming finish the form belowThe problem is v

7、ery easy to solve.2. Archimedes forgot the problem as he filled his bath with water.3. When the king got into the bath, some water ran over.4. Then Archimedes shouted that he knew how to solve the kings problem.5. Archimedes couldnt go to the palace to see the king.6. He weighed the crown and asked

8、the king for some metal of the same weight.This problem seems very difficult to solve.FFFTFFArchimedes was still thinking about this problem as heWhen he (Archimedes) got into the bath, some water ran over.“Thats it!” shouted Archimedes. “I know how to solve the kings problem.Archimedes went straigh

9、t to the palace to see the king.He weighed the crown and asked the king for some gold of the same weight.While readingRead the story again and answer the questions below in completesentences.1. Why did King Hiero send the crown to Archimedes?2. What happened when Archimedes got into the bath?3. What

10、 did the crown maker do to the crown? Because he doubted that the crown was a real golden crown and he wanted Archimedes to find out the truth.Some water ran over / was displaced.He put another metal into the crown.课堂小结根据课文填入相应的单词或词组。A.He got an ideaB.he was very angry and sent the crown maker to pr

11、ison .C.He tried to find a way to solve this problem.A crown-maker made a crown for a king. The king asked Archimedes to find out whether the crown was made of gold._. One day, Archimedes got into the bath and some water came out of it, _ . He weighed the crown first, then he put the crown and the s

12、ame weight of gold in two pots of water, different centimeters came out of them. He told the King it was not completely made of gold. At the end, when the King heard this, _ .达标检测拓展活动：你能够说出一个与阿基米德做法异曲同工的中国著名故事吗？ Cao Chung weighs the elephants Who can weigh the elephant ? One day some body sent Cao C

13、ao an elephantCao Cao wanted to know its weight，but there was nothing big enough to weigh it onCao Chung told his father he could weigh the elephant if he had a big boat and a lot of heavy stonesCao Cao and some other people were very surprised，but still he ordered his men to get everything readyWhe

14、n they led the elephant down into the boat，the water came up，then Cao Chung marked the water lineThen they drove the elephant onto the bank and put the heavy stones in the boat until the water came up to the same lineAt last，Cao Chung told the men to weigh each of the stonesIn this way，he weighed th

15、e elephant.How did Archimedes find out that the crown was not made completely of gold? Discuss this with your classmates. Write it down.Archimedes weighed the crown and asked the king for some gold of the same weight. Next he put two pots into two big bowls and filled both pots with water. He put the gold into one pot, and some water ran into the bowl. Then he put the crown into the other pot. This time, even more water ran into the bowl. Because the crown displaced more wate