牛津沪教版六上英语Unit12TheEarth课件.pptVIP

1. Why does the Earth get sick? 2. What do people do to keep the Earth clean and healthy? Answer the questions. Because sometimes people throw rubbish into rivers and oceans. Sometimes people cut down too many trees. Smoke from cars and factories makes the air dirty. 1. Why does the Earth get sick? People pick up rubbish and plant trees every year. They recycle glass and paper. They bring their own shopping bags and stop using plastic bags. 2. What do people do to keep the Earth clean and healthy? 2. The Earth gets sick. 地球生病了。 Language points get是系动词，意思是“变得，成为”，表示一种变化过程，强调逐渐变化。后面跟形容词作表语。 例句：夏季白天变得更长。 The days get longer in summer. （1）turn的意思是“变得，变成”，指在颜色和性质等 方面与以前的完全不同，强调变化的结果。 例句：叶子变黄了。 The leaves turn yellow. 拓展：turn 和 become （2）become的意思是“成为；变成”，是一个中性词，可用于好、坏两方面的变化。多指身份、职位，暂时性的身心变化或永久性的自然变化，它强调变化的过程已经完成，后面可接名词或形容词。 例句：他成了一名科学家。 He becomes a scientist. Ask and answer What should we do to save the Earth? Put a tick(√) or a cross(×) in the box. Then talk about it in groups. 1 We should cut down trees. 2 We should build more factories and houses. 3 We should write on both sides of paper. 4 We should use more plastic bags and bottles. × × √ × 5 We should not litter. 6 We should throw rubbish into rivers. 7 We should stop killing wild animals. 8 We should walk or ride a bike more often. √ × √ √ S1: What should we do to save the Earth? S2: We should… S3: We should… S4: We should stop… Play roles We should write on both sides of paper. What should we do to save the Earth? We should not litter. We should stop killing wild animals. Think and write The Earth was clean and beautiful. Now some parts are_____________. We should_____________. We should stop_____________________ __________________________________ __________________________________. The Earth is sick! The Earth was clean and beautiful. Now some parts are_________. We should__________________. We should st