1. 北师大版《初中英语》八年级上册 Unit 4 Healthy Bones Lesson 12 （第一课时） 授课教师：贾玉全

2. What’s wrong with it?

3. 1. How many pieces of bones are there in adult ( 成人 ) body? A. 206B. 207 2. Where is the smallest bone in our body? A. in our headB. in our ear Do you know these?

4. 3. Who has more bones? A.A baby B. A twenty-year-old man 4. Whose bones stop growing around 25? A. women’sB. men’s

5. Do you know anything about the bones? outside inside

6. solid inside outside bone calcium waste 里面的 坚硬的 骨头 外面的 废物 钙 Match English and Chinese.

7. What will the writer talk about in the passage? Title: Healthy Bones

8. A) Healthy Bones and Sick Bones B) Getting to Know Your Bones C) New Research on Our Blood Look at the pictures and skim the text. Choose the best title.

9. They are donating ( 捐献 ) blood.

10. Look at the pictures and skim the text. Choose the best title. A) Healthy Bones and Sick Bones B) Getting to Know Your Bones C) New Research on Our Blood

11. Divide the passage into two parts and summarise the main idea of each part. Part 1 (paragraph ) Part 2 (paragraph ) 1, 2 3-5

12. Divide the passage into two parts and summarise the main idea of each part. Part 1 Part 2 Bones are important. What we can do to keep our bones healthy.

13. Read para. 1, 2 and underline the key words. 1.What are bones like? 2.Why are bones important? 3. Why is blood important?

14. Every time we walk, sit down or hold a book, we are using our bones. Bones are important because they support our bodies and help us move freely. Although they are very light, bones are strong enough to support our weight. Paragraph 1 1. What are bones like?

15. Bones are hard on the outside, but they are soft on the inside. The soft part of the bone makes our blood. Blood carries nutrients through our body. It also helps move waste materials away so our body can stay healthy. Paragraph 2 1. What are bones like?

16. Every time we walk, sit down or hold a book, we are using our bones. Bones are important because they support our bodies and help us move freely. Although they are very light, bones are strong enough to support our weight. Paragraph 1 2. Why are bones important?

17. Bones are hard on the outside, but they are soft on the inside. The soft part of the bone makes our blood. Blood carries nutrients through our body. It also helps move waste materials away so our body can stay healthy. Paragraph 2 2. Why are bones important?

18. Bones are hard on the outside, but they are soft on the inside. The soft part of the bone makes our blood. Blood carries nutrients through our body. It also helps move waste materials away so our body can stay healthy. Paragraph 2 3. Why is blood important?

19. Read para. 3-5 and finish the table.

20. Calcium makes our bones solid, so we need to get enough of it each day. We can get calcium easily from milk, some vegetables and other foods.

21. Read para. 3-5 and finish the table.

22. Calcium Vitamin D

23. Read para. 3-5 and finish the table. Make bones solid Improve bone health

24. Read para. 3-5 and finish the table. Get from food like fish and eggs Get from the sun

25. Read aloud with the speaker.

26. Work in pairs to ask and answer.

27. Role play. Work in groups of four, one student ask questions as host or hostess( 主 持人 ), the others answers as specialists （专家）. 学校请来了养生堂三位专 家，来谈谈骨骼健康话题。

28. Homework 1. 朗读课文。 2. 独立给家人描述一 下骨骼健康的知识。