Unit 4 Healthy Living Lesson 12 Healthy Bones课件（24张）

(共23张PPT)
Unit 4 Healthy Living
Lesson 12 Healthy Bones
北师大版八年级上册
The doctor gave me some calcium and vitamin D, because I need more nutrients…
bones
Let’s learn more about our bones!
Giraffes have the longest necks of all animals. However, they only have seven bones in their necks, the same as humans.
Read the passage quickly and find the key words.
An adult has 206 pieces of bones, however, a baby has more bones than an adult. The smallest bone in our body is in our ear. A man’s bones stop growing around 25 years old.
Find the key word(s).
Read the following sentences. Which one is false
1. The smallest bone in our body is in our head.
2. A twenty-year-old man has more bones
than a baby.
3. Our bones stop growing when we are 21-25.
F
fewer
An adult has 206 pieces of bones, however, a baby has more bones than an adult. The smallest bone in our body is in our ear. A man’s bones stop growing around 25.
Look at pictures and read the text. Choose the best title.
A) Healthy Bones and Sick Bones
B) Getting to Know Your Bones
C) New Research on Our Blood
Find and underline the main idea of each paragraph.
Para 1
Bones are important and light but strong.
Bones are hard…and soft…
Calcium makes our bones…
Vitamin D is also important ...
Exercise improves bones health.
Para 2
Para 3
Para 4
Para 5
Divide the passage into two parts.
Part 1: paragraph(s)
Part 2: paragraph(s)
1
, 2
3-5
Bones are important and what bones are like.
Read Part 1 again and underline the key words.
How to keep bones healthy.
Read Part 2 again.
Find key words and make your own mind maps of Part 2.
Share … and retell … in pairs.
Calcium
VD
Exercise
How to Keep
Bones Healthy
makes bones solid(hard)
milk,
vegetables…
improves bone health
running...
walking...
helps Ca work well
fish, eggs, sun
Why is…important
What should we do
Host strings (主持人串词)
Yueyue may ask the specialist:
Why are bones important
What does blood do in our bodies
How can we keep our bones healthy
……
The specialist may use these link words (连词):
…and…/…because…/…so…/
…but…/Although…(虽然)/…in order to…(为了) /What’s more…(而且)
……
Topic :
What should we do to keep our bones healthy
Y: As we all know, bones are very important for everyone. Today let’s welcome Dr.** to our program and tell us more about bones.
S: Good evening, everybody!
Y: Dr.** ,…
Write down the key words if you need!
Further thinking
Yueyue asks you:
1. Does everyone keep bones healthy in the same way What do… do
strenuous exercise 剧烈运动
knee 膝盖
They should get enough sunshine in the open air if it is warm. In cold winter, they must take Vitamin D3 drops (滴剂) every day. What’s more, they must have lots of milk as main (主要的) food.
They should eat many kinds of healthy food as much as possible, like mushrooms (蘑菇), salmons (三文鱼), yogurt (酸奶), shrimps (虾) ... They don’t have to take Vitamin D3 every day, because they get nutrients from their food. They are busy, but they should try to find time to do exercise.
They should take some Calcium and Vitamin D3, but they cannot do much strenuous (剧烈的) exercise, because it may be not good for their bones especially (尤其) their knees (膝盖). When it is fine, they can take a walk in the sun as exercise.
2. Coke must be your favourite drink, but we all know it is unhealthy. Do you know why

Carbonated beverage (碳酸饮料) is not good for your health, because it may cause obesity (肥胖) and rarefaction (疏松) of bones. What’s more, it damages (损害) your teeth seriously.
Yueyue asks you:
Homework:
1. Exercises.
2. Self-evaluation.
Thank you
for watching!