陕西省西安交大阳光中学高中英语 Unit 3 Under the Sea Revision 导学案（教师版）新人教版选修 7第 课时课题名称Unit3 Under the Sea时间第 周 星期课型主备课人目标Go over useful words , expressions and grammar of this unit by summing up.重点Finish a cloze text and improve yourself by practice.二次备课难点cloze自主学习1. Write down what you have learned about “ Under the Sea”. 2.From this unit you have also learned : Useful verbs : Useful nouns: Useful adjectives/adverbs: Useful expressions: A new grammar item: 问题生成记录： 精讲互动 Pearls (珍珠) are valuable white gems (宝物) which come from the ocean. Actually they are 16 by oysters, small shell fish that live on the 17 of the ocean. The white pearl grows 28 inside the oyster's shell. 29 , it takes about six or seven years for the oyster to produce a pearl. Not all oysters produce pearls 30 most oysters sometimes take sand into 1their 31 . Only sand which the oyster cannot get rid of will 32 it. In other words, if an oyster "swallows" some sand, it will manage to "spit it out". If the oyster cannot get rid of the 33 , then it will produce the white fluid to 34 itself. Actually, only about one in a thousand oysters will produce a pearl; that is, 35 than one percent.16. A. inventedB. broughtC. producedD. caused17. A. bottomB. baseC. floorD. ground18. A. Only someB. Only fewC. All ofD. A lot of19. A. harmedB. coveredC. destroyedD. injured20. A. pieceB. grainC. littleD. bit21. A. shellB. bodyC. eyesD. back22. A. hardB. vividC. sharpD. rough23. A. preventB. defendC. protectD. guard24. A. waterB. matterC. liquidD. object25. A. injuryB. shellC. sandD. pearl26. A. bright B. hard C. strong D. pure27. A. make B. produce C. do D. form28. A. slowly B. fast C. safely D. quickly29. A. Often B. Actually C. Usually D.Sometimes30. A. even though B. in case C. so long as D. only if31. A. bodies B. shells C. bottoms D. caves32. A. destroy B. irritate C. soft D. open33. A. sand B. shell C. milk D. liquid34. A. cover B. destroy C. produce D. protect35. A. fewer B. more C. less D. smaller作业反思学习小结：1. 总结文章所涉及的语言点及典型句型。重点单词： 重点短语： 典型句型： 2. 找出文章中的过渡词或句子。 2板书设计3
