Unit 13 We're trying to save the earth Section A 课件2023-2024学年人教版英语九年级全册

Unit 13 We're trying to save the earth Section A 1 Vocabulary 2 1. catch catch the train 赶火车 catch up with赶上 catch a cold 感冒 练习：Cats like ________ mice. catching 3 2. bottom at the bottom of 在…的底部 from top to bottom 完完全全，从头到脚 bottom line 结果；概要；帐本底线 on the bottom 在底部 练习：He sat at the ________ of the stairs. bottom 4 3. litter litter指四处乱丢的东西和杂物 garbage专指厨房中的残羹剩饭等必须清除的垃圾 rubbish指残骸、废物等普通垃圾，特意集中起来以便清除 waste指任何被丢弃的东西 练习：Please don't drop ________! litter 5 4. play part play an active part in (doing)sth.积极参与 (做)某事 play an important part in (doing)sth.在(做)某事中发挥重要作用 练习：Education can ________ a part in it. play 6 5. turn...into.. 既指形式上的改变，也表示状态上本质的改变 练习：Water ________into ice. turns 7 6. advantage 反义词为 disadvantage take advantage of利用 be of advantage to 对......有利 have advantage over 优于，胜过 练习：What is the ________ of using nuclear power? advantage 8 Lead-in 9 Do you know what the atmosphere haze is? Do you like it? 10 What other kinds of pollution do you know? 11 12 1a Here are some words related to different kinds of pollution. Write them in the box below. Then add more words. loud music cars rubbish planes littering ships factories smoking bulding houses mobile phones 13 air pollution noise pullotion water pollution cars, factories, smoking, building houses(burning, power plants, nuclear waste disposal) Loud music, planes, building houses, mobile phones(machines, crowds, vihicles) rubbish, littering, ships, factories(sewage, industrial waste, pesticides) 14 1b Listen and complete the sentences. What was the problem? The river was _____________. Even the bottom of the river was full of _________. There were no more ________ for fishermen to catch. What caused the problem? People are throwing ____ into the river. Factories are putting _____ into the river. How should the problem be solved? We should write to the _____________ and ask them to __________ the factories. Everyone should help to ________ the river. really dirty rubbish fish litter waste government clos