河南省汝州市王寨乡第二初级中学九年级英语上册 Unit 2 Topic 3 What can we do to protect the environment教案 （新版）仁爱版.doc

unit 2 topic 3 what can we do to protect the environmentsection ateaching aims and demands1. learn some new words:plastic, suppose, be supposed to do, nod, agreement, shake 2. learn a useful sentence: everyone is supposed to do so.3. learn the compound sentences with “or”, “and”, “but” and “while”: (1) noise is a kind of pollution and its harmful to our hearing. (2) the earth is beautiful but people hurt the earth now. (3) work hard, or you will fail the exam. (4) she was busy cooking while they were watching tv. 3. learn to talk about environmental protection.teaching focus: learn the compound sentences with “or”, “and”, “but” and “while” teaching procedure: step 1 review talk about the harm of pollution in last topic. there are many kinds of pollution, such as water pollution, air pollution, light pollution, litter and so on. but do you know how these kinds of pollution affect our environment? volunteers? example: s1: water pollution makes some animals dead. s2: water pollution makes some plants dead. s3: people and animals cant drink the water. s4: air pollution causes the greenhouse effect. s5: air pollution makes people sick and even causes cancer. step 2 presentation 1. read and learn the new words. in order to encourage them to read words, organize competetions, find out who can read the words fast and correctly. 2. translate the dialogues in pairs. 3. according to the translation, try to act or read the dialogues. 4. listen to the tape, then find out the answer. step 3 consolidation fill in the blanks according to 1astep 4 practice listen to the tape carefully. youll hear four people talking about environment protection. then finish 2.(1) we should use plastic bags as few as possible.(2) we should throw the garbage in the river.(3) we should reduce the waste we produce.(4) we should use both sides of paper.(5) we should throw the plastic bags rather than reuse them. work alone.join the sentences in 3 with “or”, “and”, “but” or “while” after the example. (1) you nod your head and it means agreement. (2) hurry up, or youll miss the train.(3) water is important but some people dont save it. (4) some people protect animals while others kill animals. homework: write down the sentences in 3. designwould you like to be a greener person?section abe supposed to do sth. 1. you nod your head and it means agreement. reduce 2. hurry up, or youll miss the train.the three rsreuse 3. water is important but some people dont save it. recycle 4. some people protect animals while others kill animals.thoughts after class总第28课时 unit 2 saving the earth topic 3 would you like to be a greener person?section bteaching aims and demands1. learn a new word and a phrase:ought to, action2. learn some useful sentences: (1)would you like to be a greener person? (2)first, you ought to turn off the lights when you leave a room. (3)easier said than done. (4)well, actions speak louder than words. (5)may i have your attention, please?teaching focus: ought to teaching procedure: step 1 review tell which of the rubbish is supposed to reduce/reuse/recycle. step 2 presentation 1.t:boys and girls, we have talked about how to protect our environment. would you like to be a greener person? ss:of course. t:ok. let me tell you what we should do. we ought to save every drop of water. we had better walk or ride a bike while were traveling a short distance. take a cloth bag or a basket instead of plastic bags when we go shopping. 2. read the dialogue fast pay attention to these you ought to clean the classroom. youd better not cut down the trees. step 3 consolidation match the pictures with the sentences. then ask a student to give his/her answers.step 4 practice read 2a, complete the form.what timewhere to gohow to gowhat to do look at the form, write a notice for tree planting day, then report it in front of the class. you have three minutes to write. ok! lets begin!what time9:00 a.m.where to meetoutside the school gatehow to goby buslunchtake food and drink by yourselveswhat to doplant trees, collect garbage homework: write a notice for tree planting day. designwould you like to be a greener person?section bought towould you like to be a greener person? travel a short distanceits so easy to be a greener person. clean-up dayeasier said than done.its+adj+to do sth.actions speak louder than words.thoughts after class总第29课时 unit 2 saving the earth topic 3 would you like to be a greener person?section cteaching aims and demands 1. learn new words:technology, electric, wheel, steel 2. go on learning some compound sentences:(1) in many countries, people produce power from coal, but it is very dirty and causes acid rain.(2) although electric vehicles produce no pollution, there will be an increase in electricity needs if they are widely used.teaching focus: learn the advantages and disadvantages of some kinds of energy.teaching procedure: step 1 review t: can you remember what we have learned in section b?ss:yes. t: what are jane and michael doing?ss:they are talking about how to be a greener person. t: can you tell me how to be a greener person?ss:first, turn off the lights when we leave a room. t: what about the next?ss:walk or ride a bike instead of taking a bus or a taxi t: very good. please go on. ss:take a cloth bag when we go shopping. t: great. its easier said than done. so we have to keep on doing that every day. t:ok. lets learn 1a and talk about other ways to produce power.step 2 presentation 1. translate the dialogues in groups. 2. play the flash about section c, tell these sentences t or f.( ) its good that people produce power from coal. ( ) nuclear power is dangerous. so we cant use it. ( ) china is one of the first countries in the world to use biogas technology. ( ) the maglev train can be used in most of china. step 3 consolidation t: lets retell 1a according to the table in 1b by asking and answering.example: (1) t: what are the advantages of biogas? ss: renewable. (2) t: can you say something about electric vehicle? ss: efficient, cheap, and no pollution. (3) t: what are the disadvantages of maglev train? ss: much more expensive than traditional trains.step 4 practice work in groups of four. think about what else can be used to produce electricity. then report to the class.homework: list the habits good for environment as many as possible.design would you like to be a greener person?section c1. in many countries, people produce power from coal, 2. but it is very dirty and causes acid rain. 3. although electric vehicles produce no pollution, there will be an increase in electricity needs if they are widely used.thoughts after class总第30课时 unit 2 saving the earth topic 3 would you like to be a greener person?section dteaching aims and demands 1. learn some new words: towel, offer 2. review some compound sentences: (1) about 35% of the garbage in hong kong can be recycled every year while the rest cant. (2) people produce power from coal, but it is very dirty and causes acid rain.teaching focus: learn how to be a greener person. teaching procedure: step 1 review t: we know that pollution is becoming a serious problem. what should we do to protect our environment? now listen to me carefully. i will say some habits. tell me whether theyre good or bad, and try to write down the good ones. now be ready!(1)throw the rubbish here and there. (2)dont spit in a public place. (3)draw a beautiful picture on the public walls. (4)dont throw things away if they can be reused. (5)go to school by bike instead of by bus. (6)collect the rubbish and try to sort them.(7)pour dirty water into rivers directly.(8)turn off the lights when you go out.step 2 presentation listen to the passsage, fill in the blanks step 3 consolidation work alone.choose and report their points. the students who get 0-4 points join group 1. the ones who get 5-9 points join group 2. the ones who get 10-13 points join group 3 and 14-18 join group 4. each group finds out why they get this mark, and what they are going to do next. later give a short oral report to the class. t: now please listen to me. ill tell you how to be a greener person. more and more people are becoming green. it means that they are trying their best to protect the environment. so you need to remember the best ways to achieve the goal. (1)we need to recycle what we can. (2)we can take a quick shower instead of a bath. (3)when we make a short journey, wed better walk or ride a bike. (4)youd better stop them when you see others littering. (5)we take baskets for shopping. (6)never eat fast food. (7)never use paper towels. (8)remember to turn off lights when you leave a room.step 4 practice t: now lets practice “or”, “but”, “and” and “while”. i say the first sentence, then you say the second sentence with them. t: the electric cars work well s1:but they are slow and cant run for long.t: the maglev train is quiet and clean (and it runs fast)s2:but its too expensive.t: my mother was cooking s3:while my father was reading the newspaper. take part in, reduce, reuse, recycle, protect, save, love t: now ill give you some words or phrases. make sentences and speak them out as soon as possible. are you ready?ss:yes. t:take part in.s4:i took part in the activities to collect rubbish. t: reduce.s5:people ought to reduce plastic, coal t: s6:homework: write a report. talk about what you are planning to do to make your hometown more beautiful. design would you like to be a gree