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　　£ £ M7-U20-L3ѧ°¸.doc

¡¡¡¡Unit 20  Lesson 3 ½Ì°¸
　　ʮһѧУ ÆëÀò
　　Period 1
　　Objectives
　　1. To practice reading strategies for identifying accurate information.
　　2. To talt the influences of scientific discoveries.
　　Key points£º
　　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£º
　　Teaching Steps Classroom Activities Aims
　　Approaches
　　Step 1
　　Lead in
　　T£ºIn 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  Ãæ¶ÔÕæÕýµÄÄÑÌâ
　　2. amazing discoveries ÁîÈËÕ𾪵ķ¢ÏÖ
　　3. not to mention ¸ü²»ÒªÌá
　　4. medical advances Ò½Ñ§½ø²½
　　5. rang from ´Ó¡­µ½¡­±ä»¯
　　6. replace diseased organs with donated ones ÓþèÔùÆ÷¹Ù´úÌ没±äÆ÷¹Ù
　　7. the way we correspond ÎÒÃǽ»Á÷µÄ·½Ê½£¨Í¾¾¶£©
　　8. figure out Ïë³ö
　　9. sth. previously thought to be ¡­ÒÔÇ°ÈÏΪ¡­
　　10. single out ÌôÑ¡³ö
　　11. the century¡¯s premier scientists ±¾ÊÀ¼ÍÊ×ϯ¿Æѧ¼ÒÃÇ
　　12. inspire sb. to do sth. ¹ÄÀøijÈË×öijÊÂ
　　13. make astronomy¡¯s greatest breagh ´´ÔìÌìÎÄѧÖØ´óÍ»ÆÆ
　　14. far-reaching findings ÒâÒåÉîÔ¶µÄ·¢ÏÖ
　　15. double-chece mould in the dish ¸´²éÅÌ×ÓÀïµÄù
　　16. turn to sb./ sth. Ïò¡­ÇóÖú
　　17. wrestle with the problem ´¦ÀíÎÊÌâ
　　18. It was nothing like¡­ ÍêÈ«²»Ïñ
　　19. 100 feet long by over 10 feet high 100Ó¢³ß³¤³Ë³¬¹ý10Ó¢³ß¸ß
　　20. be dedicated to (doing) sth. ¶Ô¡­ÓзîÏ×¾«Éñ
　　21. the handy microwave oven ±ãЯʽ΢²¨Â¯
　　22. with 120 patents to his name ÃûÏÂÓÐ120ÏîרÀû
　　23. There is no doubt about it. ¶Ô´ËºÁÎÞÒÉÎÊ¡£
　　24. whether lucky or planned ²»¹ÜÊÇÔËÆø»¹ÊÇ°´¼Æ»®½øÐÐ