二零二三年 优质公开课Module3Unit5LivinginharmonyMorereading.ppt

Unit 5 Living in harmony Helping the environmentMore reading seven threats to the world Global warmingEndangered species 濒临灭绝的物种Land desertification，“Cancer of Earth”土地荒漠化 Sand Storm沙尘暴Deforestation森林砍伐Water pollutionseven threats to the world Because of the extensive use of Freon(氟利昂）, the Earth’s ozone hole （臭氧空洞）appeared over Antarctica（南极洲）Aerosol cans (喷雾剂) containing CFCs（Chloro-fluoro-carbon氯氟烃）Ozone depletion and loss 臭氧层破坏与损耗 We all moan and groan about the l_____ of the quality of life through the d_______ of our ecology, and yet each one of us, in our own little comfortable ways, c________ daily to that destruction. Its time now to a_____ in each one of us the r______ and attention our beloved mother d______.ossestruction ontributeswakenespecteserves What is one way we can help protect the environment? What has been harming the ozone layer? What can happen when the ozone layer gets destroyed?How do we know that some aerosol cans do not use CFCs?What‘green’products can you buy to help protect the ozone layer? We can try to buy “green” products. CFCs have been harming the ozone layer. It may cause crop damage and skin cancer.They are labeled “ozone-friendly”or“no CFCs”. Ozone-friendly aerosol cans, refrigerators and air conditioners. aware—unaware---awareness be aware of sthbe aware that-从句be aware how（副词）引导的从句I am quite aware how you must feel.I was too sleepy to be aware how cold it was.你意识到压力了吗？Are you aware of the tension?We are all aware that there are many threats to the environment and there is a need to act in a responsible manner to protect the world. threat （可数）a threat of … …的威胁a threat to … 对…的威胁他的出现对我们的计划构成了威胁。___________ poses a threat to our plan.threaten Vithreaten to do She threatened to kill herself.It threatens to rain.The rough life threatened to injure her health permanently.sth threatens Vi (危险)眼看要到来While danger threatens, we must take care.His presence威胁说要做某事有做某事的危险 Knowing that danger __________, I kept an extra