Topic 3 What can we do to protect the environment? Section B课件18张PPT

课件18张PPT。Fill in the blanks with or, and, but or while1. You nod your head _____ it means agreement.
2. Some people protect animals _____ others kill animals.
3. Come on, ____ you will be late for school.
4. Tom is only four years old, _____he draws very well.
5. Mary, put on your coat, _____ you'll catch a cold.
6. Hurry up, _____ you can finish your homework! andwhile or but or andReviewUnit 2 Topic 3 Section B Would you like to be a greener person?We should protect the environment.
We ought to become a greener person.情态动词+动词原形
ought to = should
ought not to=shouldn’t
更环保的We __________ cut down trees.
We ______ ____ ____ cut down trees.shouldn't ought not toDiscuss in groupsHow to be a greener person?How to be a greener person?1. sort the garbage How to be a greener person? We ought to… 2. plant trees3. water flowers5. turn off the lights 4. save watershould…shut off the electricity关闭n.电，电能6. ride a bike to school7. take a bus to school instead of taking a taxi代替，而不是8. take a cloth bag 布袋How to be a greener person? We ought not to…1. throw litter / rubbish here and there
2. waste energy
shouldn't …Read aloud1. We ought to sort the garbage.
2. We ought to plant trees.
3. We ought to water flowers.
4. We ought to save water.
5. We ought to turn off the lights when we leave our classroom.
We ought to shut off the electricity when we leave a room.
6. We ought to ride a bike to our school.
7. We ought to take a bus to school instead of taking a taxi.
8. We ought to take a cloth bag when we go shopping.
9. We ought not to throw litter / rubbish here and there.
10. We ought not to waste energy.
Jane and Michael are talking abouthow to be a greener person.Listen to 1a, then answer the following questions.1. How many pieces of advice does Jane give
Michael?
2.What will they do when they leave a room?
3. What will they take when they go shopping?They will take a cloth bag when they go shopping.Listen again!They will shut off the electricity when they
leave a room.Jane gives Michael 3 pieces of advice.
1. 应该做某事 ______________________
2. 关电 ___________________________
3. 最好做某事 ____________________
4. 代替，而不是_____________________
5. 节约能源 ________________________
6. 减少空气污染 _____________________
7. 带一个布袋 _______________________
8. 使用塑料袋 _________________
ought to do sth.shut off the electricityhad better do sth.instead ofsave energyreduce air pollutiontake a cloth baguse plastic bagsUseful phrases Read 1a in pairs Find out thePair workActions speak louder than words.Easier said than done. 说起来容易做起来难。行动胜于言辞。SayingsAs the saying goes,"Practice makes perfect."
俗话说，熟能生巧。 How can we become a greener person?2 Choose the correct verbs or phrases to complete the statements. Then match them with the right pictures. shut off reduce grow recycle ride cover use______ waste. Don’t buy cups or boxes which can be used only once.
Save electricity. ________ the electricity when you are not using it.
________ boxes and plastic bottles.
________ fruit and vegetables yourself.
Try to ________ a bike when you travel.
_________ both sides of the paper.
__________ pans when you are cooking. ReduceShut off RecycleGrowrideUseCover2 Match them with the right pictures. ①Reduce waste. Don’t buy cups or boxes which can be used only once.
②Save electricity. Shut off the lights when you are not using them.
③Recycle boxes and plastic bottles.
④Grow fruit and vegetables yourself.
⑤Try to ride a bike when you travel.
⑥Use both sides of the paper.
⑦Cover pans when you are cooking.Different ways to be a greener person
Useful expressions
1. 应该做某事 ______________________
2. 关电 ___________________________
3. 最好做某事 ____________________
4. 代替，而不是_____________________
5. 节约能源 ________________________
6. 减少空气污染 _____________________
7. 带一个布袋 _______________________
8. 使用塑料袋 _________________
ought to do sth.shut off the electricityhad better do sth.instead ofsave energyreduce air pollutiontake a cloth baguse plastic bagsSummaryRecite 1a.
Write a composition about how to be a greener person.
HomeworkThank you!