1、Unit 1 How often do you exercise? 教學設計The third period本節課總目標描述通過本節課的學習學生能掌握以下基本句型：How often do you brush your teeth? I brush my teeth twice a day. 本節課的總體設計體現了新課程標準中的從學生的學習興趣、生活體驗和認知水平出發，倡導體驗、實踐、參與、合作與交流的學習方式和任務型的教學途徑的教學理念。預想的效果是：學生感受到課堂45分鐘大多數時間是在做一件有意義而且較為感興趣的事，這種愉悅的心情促使學生自主、創造性地完成任務，即培養了學生運用英語進行實際

2、交際的能力。這種體驗和感悟是新課程標準的基本要求。教學重點和難點：合理運用本單元句型進行交際；熟練使用頻率的表達方式。Lead in: let students pay attention to the importance of brushing teeth.Task 1: How often do you brush your teeth?Task 2: How do you protect your teeth?Task 3: Who is the best teeth protector?Lead-in 由小實驗導入我們應愛護我們的牙齒。This experiment simulate

3、s the protection power of Fluoride.What youll need:1 bottle of Fluoride rinse solution (available from your dentist, local dental supply company and some pharmacies)2 eggs 1 bottle of white vinegar3 containers What to do:Pour four inches of Fluoride rinse solution into one of the containers and then

4、 place an egg in the solution. Let it sit for five minutes. Remove the egg. Pour four inches of vinegar into each of the remaining two containers. Put the egg that has been treated with the Fluoride into one container of vinegar and the untreated egg in the other container of vinegar. What will happ

5、en:One egg will start to bubble as the vinegar (an acid) starts to attack the minerals in the egg shell. Which egg do you think will start to bubble?2. 學生仔細的觀察試驗的結果。通過試驗讓學生意識到保護牙齒的重要性 3. 由學生brainstorm保護牙齒的正確的方法。并發給學生表格在小組內對小組的成員進行問卷調查。How often do you brush your teeth?Seldom  Once a day  T

6、wo times a day  After each meal  How long do you brush your teeth?30 seconds  1 minute  2 minutes  Longer than 2 minutes  What type of tooth-brush do you use?I don't know  Medium  Soft-bristled  Extra soft-bristled  Do you use toothpaste with flu

7、orine?No  Yes  How often do you eat sweets?Many times a day  Twice a day  Once a day  Once a week  How often do you see your dentist for a preventive check-up?Never  Once in several years  Once a year  Twice a year  How often do you change your toothbrush?YearlyEvery 3-4 monthsEvery 6 monthsHow often do you floss between your teeth?NeverOccasionallyDaily4. 小組內調查并做完報告后，小組內討論什么是正確保護牙齒的方法， 并選出最講究牙齒衛生的標兵。5. 擴展話題：(homework: do a severy)How often do you cut your hair?How often do you cut your nails?How often do you