课件28张PPT。北师大版《初中英语》八年级上册
Unit 4 Healthy Bones
Lesson 12（第一课时）
What’s wrong with it? 1. How many pieces of bones are there in adult (成人) body?
206 B. 207
2. Where is the smallest bone in our body?
in our head B. in our ear
Do you know these?Do you know these?
3. Who has more bones?
A baby
A twenty-year-old man
4. Whose bones stop growing around 25?
A. women’s B. men’sDo you know anything about the bones?outsideinsidesolid
inside
outside
bone
calcium
waste里面的
坚硬的
骨头
外面的
废物
钙Match English and Chinese.What will the writer talk about in the passage?Title: Healthy Bones 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.They are donating (捐献) blood.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
Divide the passage into two parts and summarise the main idea of each part.Part 1 (paragraph )Part 2 (paragraph )1,23-5Divide the passage into two parts and summarise the main idea of each part.Part 1Part 2 Bones are important.What we can do to keep our bones healthy.Read para. 1, 2 and underline the key words.1.What are bones like?2.Why are bones important?3.?Why is blood important?
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 11. What are bones like?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 21. What are bones like?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 12. Why are bones important?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 22. Why are bones important?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 23.?Why is blood important?
Read para. 3-5 and finish the table.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.
Read para. 3-5 and finish the table.Read para. 3-5 and finish the table.Calcium Vitamin D Read para. 3-5 and finish the table.Make bones solid Improve bone health Read para. 3-5 and finish the table.Get from food like fish and eggsGet from the sun Read aloud with the speaker.Work in pairs to ask and answer. 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。Homework1.朗读课文。
2.独立给家人描述一下骨骼健康的知识。 课件23张PPT。北师大版《初中英语》八年级上册
Unit 4 Healthy Bones
Lesson 12（第二课时）
What are bones like?Fill in the blankslightstrongsofthardWhy are bones important?Bones are important.support our bodieshelp us
move freelysoft part makes bloodcarry through bodymove away nutrientswaste materialsFill in the blanksCalcium Vitamin D Fill in the blanksMake bones solid Improve bone health Fill in the blanksGet from food like fish and eggsGet from the sun Fill in the blanksCan you find some opposites?lightstrongsofthardsoft-hardinside-outsideCan you find more opposites?soft-hardinside-outsideweak- strong healthy- sickMake sentences with opposites.soft-hardinside-outsideweak- strong healthy- sickHow do you know they are opposites?
Bones are hard on the outside, but they are soft on the inside.Find the differences.1. Although they are light, bones are strong enough to support our weight.
2. Bones are hard on the outside, but they are soft on the inside.1. They are light, bones are strong enough to support our weight.
2. Bones are hard on the outside, they are soft on the inside.ABFind the differences.Bones are hard on the outside, but they’re soft on the inside. / Although bones are hard on the outside, they are soft on the inside.
They are light, but bones are strong enough to support our weight. / Although they are light, bones are strong enough to support our weight.
Position: “Although” comes . “But” connects .at the beginningin the middleFind more sentences contains
“Although and but”, and change them into another forms.E.g.
Although they are light, bones are strong enough to support our weight.
They are light, but bones are strong enough to support our weight.Find the differences.Bones are important because they help us move freely.
Bones help us move freely, so they are important. “Because” gives .“So” gives .reasonresultFind more sentences contains
“because and so”, and change them into another forms.E.g.
Bones are important because they help us move freely.
Bones help us move freely, so they are important. B Complete the sentences. Use although, because, but or so.
1 We get vitamin D from the sun, ________ it’s important to go outside.
2 I go running everyday __________ it keeps me healthy.
3 __________ we don’t usually think about it, we need to keep our bones strong.
4 Our bones are light __________ they can support our weight.
5 I drink milk every morning __________ milk has calcium. My brother doesn’t like milk __________ he likes cheese, __________ he eats that.
sobecauseAlthoughbutbecausebutso ?I exercise once a week. I’m still not very fit.
?We always eat a good breakfast. We aren’t hungry before lunchtime.
?She usually goes to bed early. She doesn’t like to be sleepy at school.
?He never eats junk food. His brother always does.
Connect the sentences. Use although, because, but or so. Your Turn Write your own health advice.? food ? drink ? exercise
? sleep
? school
? bones
…1.Choose a topic.2. Include the words because, so, although or but. Can you give any health advice to the people in the picture?
1. List teachers’ and students’ unhealthy behaviors. 2. Give them some advice in groups.
3. Include the words because, so, although or but. Follow the rules.Report your group advice.Homework1.朗读课文。
2.把课上提出的健康建议写在作业本上。
