英语人教版九年级全册unit13 and unit14.docx

Unit 13 unit14 Teaching aims:Knowledge aims： (1) key words: litter, bottom, fisherman, cost, industry, afford, survey, double, overcome, separate, thirsty. (2) key phrases: be harmful to, at the bottom of, take part in, shut off, take action, throw away, put sth to good use, set out, be thirsty for.Ability aims: Ss should be able to use key words. Ss should be able to use key phrases.Emotional aims: be proud of what we have learnt.Teaching key points: master phrases and key wordsTeaching difficult points: make good use of phrases and passive voice.Teaching procedures:Step 1: warm up Daily greetingStep 2: lead inT: we have learnt unit 13 and unit 14, do you still remember key words of these two units? Lets have a dictation. （have a dictation）Step 3: review1. Have a review about how to change verbs to adjectives, then finish exercises of words promotion.2. Have a review of key phrases, try to make sentences with them.3. Have a review of passive voice: be + Ved;Finish sentences in P49.Step 4: key points:a, Afford:承担的起；买的起Afford + n/to doEg: We cant afford to buy a ticket.b, bring back 恢复，使想起，归还eg: The old city was brought back to life again.C, believe in信任（信任某人的品质，信仰，人格等） believe相信 （相信某人说的话）d, remember + doing 记得曾经做过的事情 remember to do 记着去做某事（此事还未做）e, help do sth, help to do sh, help sb to do sth, help sb do sth.Step 5: practice1,我们正在努力拯救地球。We are trying to save the earth.2,这条河过去是那么的干净The river used to be so clean.3, 空气被严重的污染了。The air is badly polluted4,没有科学研究证明