《Scientific Breakthroughs》ppt1
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共两个课件。
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M7-U20-L3(1).ppt
M7-U20-L3(2).ppt
M7-U20-L3词组.doc
M7-U20-L3学案.docUnit 20 Lesson 3 教案
十一学校 齐莉
Period 1
Objectives
1. To practice reading strategies for identifying accurate information.
2. To talt the influences of scientific discoveries.
Key points：
1. To learn and practice reading strategies for identifying the general idea and important words.
2. To understand the text and learn detailed information about some pioneers of science in the 20th century.
Difficulties:
1. To apply the reading strategies to daily reading practice.
2. To have an oral or written English introduction to the pioneers of science in the 20th century.
Teaching procedure：
Teaching Steps Classroom Activities Aims
Approaches
Step 1
Lead in
T：In the 20th century, the world changed completely. What led to the changes?
Ss: Discoveries.
T: (Show the Ss some pictures.)
Please name the discoveries in the pictures.
Ss: ……. All the questions and pictures help the Ss lead in some related information about the text. Have a discussion and description of the pictures in pairs.
T: Can you single out the most important one. (The phrase “single out” means “pict.”)
Ss: (They show different opinions.)
Conclusion 1:
T: If you had to singe out the most important discoveries, you would have a real dilemma. (Explain the meaning of dilemma.)
T: What can we single out?
Get the Ss to show their ideas individually and arrive at a conclusion together. Make individual presentation.
Step 2
Reading First reading Activity 1:
Show the Ss the reading strategy for identifying the general idea.
Conclusion 2:
T: It is possible to single out the pioneers of science in the 20th century.
Activity 2:
Ask the Ss to match the pioneers and their discoveries.
Activity 3:
T: How the discoveries came about?
S: (Fill in the blanks.)
Help the Ss to identify the main idea of the text and some information when they do fast reading. Read the text fast and answer some questions.
1. have a real dilemma 面对真正的难题
2. amazing discoveries 令人震惊的发现
3. not to mention 更不要提
4. medical advances 医学进步
5. rang from 从…到…变化
6. replace diseased organs with donated ones 用捐赠器官代替病变器官
7. the way we correspond 我们交流的方式（途径）
8. figure out 想出
9. sth. previously thought to be …以前认为…
10. single out 挑选出
11. the century’s premier scientists 本世纪首席科学家们
12. inspire sb. to do sth. 鼓励某人做某事
13. make astronomy’s greatest breagh 创造天文学重大突破
14. far-reaching findings 意义深远的发现
15. double-chece mould in the dish 复查盘子里的霉
16. turn to sb./ sth. 向…求助
17. wrestle with the problem 处理问题
18. It was nothing like… 完全不像
19. 100 feet long by over 10 feet high 100英尺长乘超过10英尺高
20. be dedicated to (doing) sth. 对…有奉献精神
21. the handy microwave oven 便携式微波炉
22. with 120 patents to his name 名下有120项专利
23. There is no doubt about it. 对此毫无疑问。
24. whether lucky or planned 不管是运气还是按计划进行
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