Unit 13 Section B (3a-selfcheck) 课件 2024-2025学年人教版英语九年级全册

（人教新目标版）九年级全 Period 6 Section B 3a-Self Check Unit 13 We’re trying to save the earth! Learning objectives Key words & phrases： need to be improved，cause the problem，is getting worse and worse Key sentences： 1.The river used to be so clean. 2.We have seen many changes in the environment. 3.People should take public transportation more. 4.The river is polluted by factories. 5.The air pollution is getting worse and worse. Key structure： Review present progressive，modal verbs，passive voice，used to，present perfect tense What are the problems? noise pollution air pollution water pollution land pollution ... What caused the problems? People..., Factories..., Cars... What to do to solve the problems? Government should ..., everyone should... Lead in problem cause what to do 70 million sharks are caught and traded each year. The numbers have fallen over 90% in the last 20 to 30 years. shark fin soup Governments develop laws to stop the sale of shark fins. Lead in What can we do to save the earth? 1. stop riding in cars 2. recycle books and paper 3. turn off the lights when you leave a room 4. turn off the shower while you are washing your hair 5. don't use paper napkins ... small things in daily life Rethink, Reuse, Recycle! Nothing is a waste if you have a creative mind. Lead in Think about the environment in your town / city and complete the chart below. · Which parts of the town / city have a nice environment? Why are they nice? · Which parts need to be improved? Why? 3a P103 Pre-writing Good environment why? Bad environment why? Central Park ·clean ·greenery ·fresh air ·nice to look at ·quiet and peaceful Rubbish disposal areas at the bottom of apartment block(公寓垃圾堆放区域) ·rubbish spilling out of bins ·bad smells ·unsightly ·unhealthy ·full of pests (害虫) Possible answers Pre-writing Write a letter to the city mayor about the problems and your suggestions. In your letter, describe the environmental problems in your town / city. · What are the problems? · Where are they? · What or who is causing these problems? · What methods can we take to solve these problems? … 3b While-writing ☆ pollute ☆ pollution ☆ harm ☆ harmful ☆ recycle ☆ cause ☆ protect ☆ save ☆ waste ☆ gas ☆ rubbish ☆ smoke ★ as is known to all ★ as we know ★ in this way ★ be bad for ★ pay attention to ★ care about ★ for example ★ give up ★ throw away ★ instead of ★ take in ★ give off (散发) ★ in order to ★ take action ★ make a difference ★ in one's opinion ★develop a habit of ★ take steps While-writing Step 1 Structure. (理清大体结构) Para. 1 Para. 2 Para. 3 General introduction: Problem(s). Cause and effect. Possible solutions. (What to do) Para. 4 Wishes. Beginning Body Ending While-writing Step 2 Make a draft. (打草稿) There are some areas that aren't attractive, like the rubbish disposal areas at the bottom of our apartment blocks. There is rubbish coming out of the bins, and flies and rats running all over the rubbish. It is unpleasant to look at, smelly, and it makes the environment very unpleasant. The rubbish collectors do not come often enough to collect the rubbish. People living here may also be throwing away too much rubbish. We should ask people to produce less rubbish. Rubbish collectors collect rubbish more often. I believe that a better environment can be created in this town. While-writing Step 3 Polish the sentences. (美化句子) 1. There are some areas that aren't attractive. My town used to be as beautiful as a park. There are beautiful areas in this town, but there are also areas that aren't attractive. 2. We should ask people to produce less rubbish. Rubbish collectors collect rubbish more often. We could try to ask people to produce less rubbish. I suggest that rubbish collectors collect rubbish more often as well. While-writing Step 4 Transitional phrases or sentences. (过渡) My town used to be as beautiful as a park. There are beautiful areas in this town, but there are also areas that aren't attractive, like the rubbish disposal areas at the bottom of our apartment blocks. There is rubbish coming out of the bins, and flies and rats running all over the rubbish. It is unpleasant to look at, smelly, and it makes the environment very unpleasant. The rubbish collectors do not come often enough to collect the rubbish. People living here may also be throwing away too much rubbish. We could try to ask people to produce less rubbish. I suggest that rubbish collectors collect rubbish more often as well. I believe that a better environment can be created in this town. I think The problem is there not only because and we should all work together to achieve it. Step 5 注意书信的格式。 Dear Sir/ Madam, I have lived in this town ever since I was born and I love this town very much. My town used to be as beautiful as a park. There are beautiful areas in this town, but there are also areas that aren't attractive, like the rubbish disposal areas at the bottom of our apartment blocks. There is rubbish coming out of the bins, and flies and rats running all over the rubbish. It is unpleasant to look at, smelly, and it makes the environment very unpleasant. While-writing The problem is there not only because the rubbish collectors do not come often enough to collect the rubbish. People living here may also be throwing away too much rubbish. We could try to ask people to produce less rubbish. I suggest that rubbish collectors collect rubbish more often as well. I believe that a better environment can be created in this town and we should all work together to achieve it. Yours faithfully, Wang Xi While-writing 1. Write different forms of the words. Then add more to each group. v. – n. pollute — act — protect — inspire — build — create — n. – adj. fame — wood — science — health — south — care — pollution action/actor protection inspiration building creativity wooden scientific healthy southern careful famous P104 Self Check adj. – n. different — important — adj. – adv. slow — wide — sudden — real — difference importance slowly widely really suddenly Self Check 2. Match each statement to the correct grammar structure. Statement Grammar The river used to be so clean. Present progressive We have seen many changes in the environment. Modal verbs People should take public transportation more. Passive voice The river is polluted by factories. Used to The air pollution is getting worse and worse. Present perfect Self Check 3. Write ways to cut down on these kinds of pollution. ask factories not to throw waste into the rivers; remind people not to litter ensure that factories throw away industrial waste in a responsible way; try not to use plastic bags when shopping build airports away from places where people live encourage people to use public transportation instead of driving; reduce the number of factories that burn coal Kinds of pollution Ways to cut down water pollution land pollution noise pollution air pollution Possible answers: Self Check Can you write a letter to the city mayor about the problems and your suggestions? Self-evaluation Polish your letter. Homework 谢谢指导 $$