Unit 1 Nature in the balance Welcome to the unit 课件-2023-2024学年高中英语译林版（2019）必修第三册

Unit 1 Unit 1 Nature in the balance Listen to a song and tell the main idea. Humans have done much harm to the Earth, and we have to take action to change this situation. Reading : What is the message of the song? The human race has done much harm. We have polluted our soils and seas, And cut down too many trees. Now is the time to sound the alarm. We want to live in a world that’s clean; We want to live in a world of green. The human race has done much harm; Now is the time to sound the alarm. 1. What are the rhyming words in this song? Let’s be thankful for the skies above; Let’s plant new trees and stop pollution; Let’s work together to find the solution; The Earth’s our home to protect and love. We want to live in a world that’s clean; We want to live in a world of green. Let’s be thankful for the skies above; The Earth’s our home to protect and love. “Harm” means something bad we have done to the Earth, including polluting soils and seas, cutting down too many trees, etc. 2. How do you understand “harm” and “alarm” in this song? “Alarm” means the signal that warns us of the dangers of environmental damage, which urges us to find a solution to this problem. 但是我们不要过分陶醉于我们人类对自然界的胜利。对于每一次这样的胜利，自然界都对我们进行报复。 ——弗里德里希·恩格斯 What’s your understanding of the quotation? Let us know, however, flatter ourselves overmuch on account of our human victories over nature. For each such victory nature takes its revenge on us. —— Friedrich Engels Appreciation Watch the video and think: What can you get from it? Discussion What can we do to help protect the environment? We can use less paper and fewer plastic bottles and bags. Adopt green transportation, eg. bike more, drive less. Cutting down on electricity usage can also help reduce the air pollution that power stations create... Shop wisely. Buy less plastic and bring a reusable shopping bag. Turn off the light when necessary. The Earth is our only home. The human race had done much harm. harm n. damage, injury, or trouble caused by someone's actions or by an event 损害; 危害; 伤害 【归纳】do sb. harm  对某人有害 do harm to ...  对……有害 come to harm 受到损害，遭到不幸 e.g. A few late nights never did anyone any harm. Smoking will do harm to your health. My brother’s ship was caught in a storm, but he came to no harm. v. to hurt or injure sb. or to damage sth. 损害; 伤害 e.g. Don’t harm your eyes by reading a book in the sun. It will harm no one at all. 【链接】 harmful adj. 有害的 be harmful to … 对……有害处 harmless adj. 无害的 be harmless to … 对……无害的 Listen to the song again and try to sing it! 1. Learn to sing the English song. 2. Preview the reading part. Lavf58.29.100 $$