Unit2Topic2SectionD课件2023-2024学年仁爱科普版英语九年级上册

Unit 2 Saving the Earth Section D 1. shortage / ˈʃɔːtɪdʒ / n. 不足;缺少;短缺 水资源短缺 water shortage = the shortage of water 2. avoid [əˈvɒɪd] v.防止,避免 avoid sth. 避免某事 避免灾难 avoid disaster avoid doing sth. 避免做某事 避免说任何事情 avoid saying anything 3. resource / rɪˈsɔːs / n.资源,财力 human resources 人力资源 natural resource 自然资源 water resource 水资源 4. discover [dɪs'kʌvə] v.发现 (发现本来就存在的事物), 找到 探索自然 discover the nature 5. reuse / ˌriːˈjuːz / v. 再次使用，重复使用 信封请重复利用。 Please reuse your envelopes. 6. thirsty ['θɜːsti] adj.缺水的,渴的 感觉口渴 feel thirsty 7. law [lɔː] n. 法律，法令；定律 守法 follow the law 违法 against the law 通过防止水污染的法律 pass laws against water pollution 8. nearly / ˈnɪəli / adv. 几乎，将近 这瓶子差不多空了。 The bottle is nearly empty. What is very important in our daily life? Water. What is the earth mainly covered with? Where’s fresh water that humans drink and use from? It’s from places including rivers, lakes and underground. 从1993年开始,确定每年的3月22日为“世界水日World Water Day”, Do we have enough water to drink and use or are we short of water? But now we meet with a serious problem ----------water shortage What can you do in our daily life? save water reuse water Take the salt away from the sea water 1a Read the passage and put the following paragraphs in the correct order. ( ) The sea seems to have the best answer. There is plenty of water in the sea. But we need to take the salt away from the sea water. This is very expensive. If scientists can find cheaper ways to do it, we can solve the problem of the shortage of water. ( ) How can we avoid a serious water shortage? First, we should save water and not waste it. Second, we should protect our water resources and not pollute them. Third, we should discover ways to reuse water. Scientists have made some progress in this field. Today, some large cities are reusing their water. But people’s need for water is increasing day by day. We still don’t have enough water. What else can we do? (