[中学联盟]北京市房山区周口店中学八年级英语上册（北师大版）：Unit 4 Lesson 12（课件+视频 3份）

Warm-up & Reading & Vocabulary Lesson 12 How much do you know about your bones? How to keep your bones healthy? 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 F F ear less 16-18 Look at pictures and skim the text. Choose the best title. The best title: Read again and do true or false. 1. Bones are very heavy and hard. 2. Bones help move waste materials away. 3. Calcium makes our bones soft. 4. We can get calcium easily from fish and eggs. 5. Running is better than walking to help keep our bones healthy. T F F F F Read again and answer questions. 1. Are bones weak? 2. Are bones hard on the inside? No, they are strong. No, they are soft on the inside. 3. What do bones make? 4. Why is blood important? 5. What can we do to keep our bones healthy? Because they support our bodies and help us move freely. 1. Get enough calcium and vitamin D. 2. Try to get a bit of sun every day. 3. Make exercise a habit. The soft part of the bone makes our blood. We should / must … We shouldn’t / mustn’t What should we do to keep our bones healthy? Complete the World Builder with the opposites. Adjective Opposite hard soft inside sick weak outside healthy strong 用句中形容词的反义词填空。 1. The bag is________ . It's not light. 2. My father is not young. He is________ . 3. The bread is not hard. It's ________. 4. Li Ping is right. Li Ping isn't________ . 5. My bag is small. His is________. 6. I’m sick. I hope to be ______ soon. 7. The wind is not weak. It is very _______. heavy old soft wrong big healthy strong 1. … help us move freely. help … do … = help … with … 帮助（做）…… He often helps me study English. = He often helps me with my English. 他经常帮助我学习英语。 Language points I like _______ my mother _____ the housework. 　 A. help; with B. helping; with