-高二英语Unit9-Saving-the-earth及单词讲解PPT课件
高二英语 Saving the earth课件
8. Once oceans are polluted, they are not able to clean themselves.(F)
2. Land may become poor if farmers do not limit their cattle.
3. Good soil is gradually lost these days as trees are being cut down.
4. Air pollution and water pollution are the two causes of problem that many parts of the world have become desert.
safe to eat the fish.
T
E
Lake Baikal, which used to be the cleanest in the world,is
Factories and cities produces a lot of waste.
Waste produced from a chemical factory.
7. The writer uses the examples of the accidents in both India and Russia to explain how water is polluted.
8. Once oceans are polluted, they are not able to clean themselves.
高二英语课件 Saving the earth
R
T Good soil is gradually lost. H
Trees being cut down; Plant more trees
strong winds blowing the and try to protect
valuable soil away.
them.
Air is being polluted.
2. Land may become poor if farmers do not limit their cattle.
3. Good soil is gradually lost these days as trees are being cut down.
4. Air pollution and water pollution are the two causes of problem that many parts of the world have become desert.
Factories and cities produces a lot of waste.
Waste produced from a chemical factory.
Same as above.
The main idea of each passage
Earth: The area of desert is growing and
pollution? (4) What can be done to stop land
from becoming into desert? (5) What else do we know about the
problems that the earth is facing? (6) What steps should we take to
高中英语第二册上Unit09 Saving the earthWarming up04 ppt
We must use modern technology/ the knowledge and technology that some countries have already developed to solve the problem/to water our plants.
People is trying to deal with rubbish now.
Air pollution
Look, what’s happening here? deforestation
desert
The desert is eating up the villages.
They are doing something to stop desertification.
Solutions:We must change the way we think and the way we live.
• Let’s not drive if we can walk or ride a bike.
• Let’s try not to use air conditioners more than what is absolutely necessary.
• Let’s not buy products that cause pollution.
• Let’s make new rules and use new technology to make sure that factories are green and clean.
2. The speaker will say that her final point is “We must stop using too much water in our daily life.” Below is a sample outline of this part of the speech:
高中英语第二册上Unit09 Saving the earthLanguage points ppt
你究竟是什么意思？
back
Or the question of how we can continue developing the world without damaging the environment.
(1) 句中 Or “也就是; 即”, 用于补充说明上文的内容
The company is paying the rent or at least contributing to it.
你是同父母一起去还是独自去?
(2). Without doing
结构在句子中作状语,表示“ 在没有发生…情况下” They left the school in a hurry, without saying goodbye to anyone.
他们没有同任何人告别,就匆匆离开了学校. Tom closed the door without making a sound.
C. The Earth Summit , a way to save the earth
D. Sustainable development , the future for the world
5. The key to solving the major problems facing the earth is _______. A. to educate the people of the world B. to improve the living conditions of the people C. to treat people equally and fairly D. to hold conferences like the Earth Summit frequently
人教版高二英语上学期课件：UNIT9 Saving the earth listening
5. Don’t make a lot of noise. 6. Don’t waste water 7. Don’t waste electricity.
8. Don’t destroy trees and grass.
A nation destroys its environment destroys itself.
------ F.D.Roosevelt
Thank you for watching
Point2: We must _s_t_o_p__p_ol_lu_t_i_n_g_our water.
We must_c_h__a_n_g_e__t_h__e__w_a__ywe think and live.
Let’s not _d_r_i_v_e__if we can walk or ride a bike.
Unit9 Saving the earth
listening
---listening
Prediction: What will the speaker talk about in the speech?
April 22
While-listening
1.Listen for gist
2006年北京地区高二英语Unit9 Saving the earth课件 新课标 人教版
北京工大附中
The important news in China in November 2006: Beijing Summit of Forum (论坛) on China-Africa Cooperation was held.
How much do you know about Beijing Summit of Forum (论坛) on China-Africa Cooperation
5. From the text we can infer that ____.
A.about 20% of the earth population die of contaminated drinking water. B.about 46,700,000 people on the earth die each year
Tell us what we can do to help.
Read the text carefully and choose the best answer to each question.
1. According to the passage, the Earth Summit A. was first held by Sweden in 1972
China’s then premier Zhu Rongji
Why is education the key to the future?
高二英语课件：unit9 Senior2
fewer wars
D. better living conditions of the people
Why are conferences like the Earth
Summit important?
Because they help people understand existing problems and that there’s still time to take action. They can tell us what we can do to help. It is a place to find solutions for the future.
Welcome to the Earth Summit
Key words of each part:
Introduction Introduction
Para1
to the Earth Summit
Body
Para2-3
Problems
Conclusion
Para4-7
Solutions
Time 1972 2002
The key to solving the major problems facing
the earth is _______.
better society
A. better education
less poverty
B. more conferences
less violence
C. more equality and fairness
Read Part 2&3 and do the exercises in the paper with your partners.
g2高二英语_Unit_9_说课课件英语课件PPT
1.A song about the topic we’ll learn today. “ Earth song ” by Michael Jackson (Because it is too long , play it before the class begins.)
3.Some more pictures in pairs as comparison . Pair 1: the sea used to be clean and the beach is beautiful but now they are seriously polluted. Pair 2:green grass and thick forests but now only deserts left Pair 3: the sky was blue and clear but now there are a lot of smoke in it and it is no longer blue and clear.
trees be cut down wash…
no trees left to hold…
blow …;
Passage2:
a. Show the Ss the following pictures.
b. Questions : What can you see in the pictures? Why do these things happen?
Step 3 Presentation
The teacher's brief introduction: Today we will deal with the three most serious problems the earth has --– earth problem , air pollution, and water pollution.
高中英语第二册上Unit09 Saving the earthwarming up07 ppt
Without proper sanitation, efforts to improve health care are useless.
desert
The area of desert is growing.
desertification
Why is more and more land becoming desert?
too many sheep and cattle
all the grass be eaten
grass never grow again ; the land become desert
1. Most leaders don’t listen. 2. Governments must limit the number
of cars per family. 3. What we call rubbish today is actually
the resources of tomorrow.
Air pollution causes other diseases and may make it easier for children to get sick in the future.
poor sanitation
Over 2.4 billion people have no access to good sanitation.
Limit the number of __c_a_r_s___ per family; stop _c_u_tt_in_g_ __d_o_w_n__ _t_re_e_s__ without replacing them.
高中英语第二册上Unit 9 Saving the earth-the First Period
Unit 9 Saving the earth-the First Period1．Brief Statements Based 0n the UnitIn this unit，Ss will do some listening speaking，reading and writing practice．Also, they will learn to use the Inversion．In the first period，Ss wi1l improve their speaking ability by talking about nature ecology and the environment and they will listen to some listening material about our environment．After the study of this period，they will improve their speaking and listening abilities and also know something about the problems facing the earth．In the second period，Ss will read a passage about the Earth Summit．From the passage Ss will know more about the importance of protecting our earth．In the third period．Ss will study the grammar item：Inversion．After doing some exercises provided in this period．and with the help of the teacher，Ss will know how to use the Inversion．Teacher may provide more exercises for Ss to consolidate if necessary．In the last period，Ss will listen to two speeches from the Earth Summit and finish the practice provided in the first part．Ss will know more about the Earth Summit and improve their listening ability．In the writing part, Ss will improve their writing ability by writing an evaluation paragraph with the help of some given expressions．After the study of this unit．Ss will know how to support an opinion，and they will know more about environment protection．They will know that if all of us make small changes．we could make a big difference．They will do more to protect our earth．II．Teaching Goals1．Talk about nature ecology and the、environment．2．Practise supporting an opinion．3．Learn to use inversion．4．Write an evaluation paragraph．III．Teaching time：Five periodsIV．Background Information1．Protect The Ozone LayerIn the middle of winter，when snow is falling in many parts of the United States, scientists have sounded a warning to people who plan to spend many hours in the sun this summer．The warning：The sun's summer-time rays are more dangerous than once thought．A team of scientists from 80 nations recently reported to the United Nations that a layer of ozone in the atmosphere, which protects humans from harmful levels of ultraviolet radiation，will be thinner over the United States this summer．The thinner 1ayer allows more ultraviolet rays from the sun to reach the earth．The extra amount of ultraviolet radiation could cause an increase in the number of cases of skin cancer． Scientists first became concerned about the ozone layer in the mid-1980s when a hole was discovered in the layer above Antarctica during the winter．The hole was caused by chemicals used in refrigerators and air conditioners．When these chemicals are sent out into the atmosphere, they produce gases that destroy the ozone．Concern about the protective ozone layer rose more recently when data from satellites and ground stations showed that ozone levels were dropping over areas otherthan Antarctica．Low ozone levels were recorded in the spring and summer over the United States and over other populated areas in the world．Although many countries have already begun stopping the use or ozone—destroying chemicals, the new findings are expected to advance the timetable for a total ban of the chemicals．2．PollutionPeople today all over the world are beginning to hear and learn more and more about tile problem of pollution．Pollution is caused either by the release(排放)of completely new and often artificial substances into the environment, or by releasing greatly increased amounts of a natural substance．such as oil from oil tankers into the sea．With the development of modern industry，many of the goods and machines we need and use in our daily lives are creating a number of waste products which upset the environment balance．Many of these waste products can be prevented if people pay more attention，but clearly while more and more new goods are produced and made complex，there will be new dangerous wastes to be thrown away，for example，the waste products from nuclear power stations．Many people，therefore, see pollution as only part of a larger and more complex problem．There is no doubt that much of the pollution caused could be controlled if only companies, individuals and government would make more efforts．In the home there is an obvious need to control litter and waste．Food comes wrapped up three or four times in packages that all have to be got rid of；drinks are increasingly sold in bottles or times which cannot be reused．This not only causes a litter problem，but also is a great waste of resources，in terms of glass，metals and paper．Advertising has helped this process by persuading many of us not only to buy things we neither want nor need．but also to throw away much of what we do buy．Pollution and waste combine to be a problem everyone can help to solve by cutting unnecessary buying, over consumption and careless release of the products we use in our daily lives．The First PeriodTeaching Aims：1.Train the students’ listening a bility．2.Improve the st udens’speaking ability by ta lking about nature ecology and theenvironment．3.Learn and master some useful expressions for supporting an opinion．4.Help the students to know something about the pollution．Teaching Important Points：1．Improve the students’speaking ability．2．Improve the stu dents’listening abi lity．3．Help the students to learn to support an opinion．Teaching Difficult Points：1．How to i mprove the students’speaking and listening abilities．Teaching Methods1．Listening-and-answering activity to help the students go through the listening material．2．Discussion to make the students practice supporting an opinion．3．Individual，pair or group work to make every student work in class．Teaching Aids：1．the multimedia2．a tape recorder3．the blackboardTeaching Procedures：Step I GreetingsGreet the whole class as usual．Step II Warming up(Show the pictures on the screen．)T: Look at these pictures. How beautiful they are! Do you want to pay a visit to these places?Ss：Yes．T：But in some places，it’s not so b eautiful Look at the pictures．please． (Show the following pictures on the screen．)T：What can you see in the pictures?S：1 can see a river，which is polluted．The river water is very dirty．S：I can see smoke coming from many chimneys，and the air is dark．The air is polluted．T：Good．Which problem do you think is the biggest one facing the earth?S：I think it is the water pollution．T：Why do you think so?S：Because if water is polluted．People will not be able to get clean water to drink；therefore，many people will get sick．It’s terrib le．T：Very good．Who has a different opinion?S：I think the air pollution is the biggest problem．Because if the air is polluted，there will not be clean air for us to breathe．Everybody will get terrible diseases．T：Quite right．Now，who can tell us what causes these problems?S：I think it is because people pay no attention to our environment．They pour waste water into rivers，1akes and seas without cleaning it．S：The air pollution is caused by the factories．People build factories to develop the industry，but they never pay attention to controlling the pollution．The harmful smoke should be made harmless before it goes into the air，but fewfactories would like to do so because this will cost much．T：Very good．Now，who knows what we can do to solve these problems?S：I think our government should pay more attention to environmental protection．They should check the factories as often as possible to make sure they don’t pour waste water into rivers or lakes and make sure they don’t letharmful smoke go into the air．T：Good idea．Now，please open your books and turn to Page 65．There are six pictures in Warming up．We have just talked about two of them．Now，work in groups of four to talk about the other pictures．Answer the questions below the pictures．(A while 1ater，ask some students to act out．)Step III Preparation for Listening and ListeningT：Very good．I think you’re known something about our environment.Now，please turn to Page 66．Look at the picture in Listening．What can you see? Ss：A person is making a speech to the audience．T：Can you guess what speech she is giving?Ss：Maybe about our earth．T：OK．Now，let’s listen to the tape．I’ll play it twice for you．Listen carefully to answer the questions in Part 1．(Play the tape twice for Ss to listen and write down their answers．Then ask some students to read out their answers．Check with the whole class．The teacher says the following．)T：Good．You’re done very well． But from the passage we know that she hasn’t finished her speech．What do you think she wi1l say next? Have a short discussion in pairs．please．(Ss have a short discussion and then the teacher asks one or two pairs to say their answers．)Well done．Now．1e t’s listen to the second part．Listen carefully to outli ne the speaker’s two arguments. Fill in t he table in Part 2．Are you ready?Ss：Yes．T：OK．Let’s begin．(Play the tape twice for Ss to Listen and write down their answers．Pause the tape if necessary. Then ask several students to read out their answers．)T：Now，let’s listen to the tape again to check your answers．(Play the tape once more and then check the answers with the whole class．)Good．P1ease think a bout what the speaker will say next．You call use what you have heard on the tape to predict what will come next．Make an outline like the one in the table and then write down what you think the speaker will say．You can work in pairs or groups of four as you like．(A moment 1ater，ask some students to read out their paragraphs and compare different speeches to choose the best one．)Step Ⅳ SpeakingT：Well done! We’ve talked much about po llution．We know that pollution is a bigproblem facing the earth．But why can’t we stop the pollution? Why doesn’t our government shut down the factories that pollute the environment badly? Who knows? S：I think our government must have its own opinion．Maybe they think the factories are more important than the environment．Because the government can get lots of money from factories．If they shut the factories down ,it will not be able to get so much money．And this is not good for the development of the city or town.T：Yes．Different people have different opinions．They may not agree with one another．So sometimes it’s ver y hard to make a decision and to make a change．For example，we know that coal is a valuable resource that can be used to produce energy，but it also causes serious pollution．What should we do with it? (Ss may have various answers．) You see，you don’t agree with each other．Now，we need to have a meeting to discuss this problem．Please work in groups of five．You should play different roles：a businessman．a scientist. a local citizen，an environmentalist and a local leader．Different people have different opinions．(Every person has his／her own opinion．) Please discuss the issue first and then the local leader should summarise and make a decision．You can have a look at the table and the useful expressions in Speaking Part before you begin your discussion．They’re very helpful．(Give the students enough time to have a discussion and then ask the students who play the role of the local leader to read out their decisions．Compare them and choose the best decision．)Sample dialogue：A：Today we are here to decide whether we should burn the coal．Please tell us whatever you think．B：I think we should burn the coal．1f we d on’t burn it now，maybe it will be useless in the future，New energy wi1l be used instead of coal，such as．solar energy．C：But burning coal causes too much pollution to our environment．1t pollutes the air badly. If nothing is done to stop its pollution to our earth，then we will Have no fresh air to breathe．D：Yes，I quite agree．I think we sho uldn’t burn the coal now. It would be better if we spend more money on science to find a better way of using the coal．Once we know how to burn it with out polluting the environment ,we can make full use of it．E：That sounds quite reasonable，b ut it’s clear t hat if we want to develop our area as soon as possible，we need money．How can we get money? We can only burn the coal to make the factories work to make money．If we stop using the coal now ,how shall we continue our production and development?…A：OK．All that you said are reasonable．I believe that we must try our best to find a better way to use the coal．Meanwhile ,we must make sure that the factories which burn the coal take measures to stop polluting the environment．Step V Summary and HomeworkT：Well done．After class，please write down your dialogue in your exercise book．Today．we’v e talked about our environment．We know that there are somebig problems facing our earth．We must try to do what we can to protect the earth．Besides．we’ve practiced support ing an opinion．Who can come to the blackboard and write down the useful expressions we’ve practiced just now?(A student writes them down on the blackboard．If this student can't write allof them，the teacher may ask another student to write the other expressions．) T: Very good．After class, you need practise more to master them better。
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people to take action
2 What does she think the most serious problem is?
Water pollution/protect our water
3 What does she say we should do about it?
to protect our environment. And we also should do
our best to protect it.
-
3
Listening
the Earth Summit
Part1 1 Why is she giving this speech?
To celebrate Earth Day; to talk
__u_s_e_o_u__r_water.
_p__o_ll_u_t_e_t_h_e__a_ir__a_n_d water
We must
Solutions:
__u_s_e_m__o_d_e_r_n__te_c_h__n_o_lo_gy. _1_W__e__m_u__st__c_h_a_n_g_e__th__e_w__a_y_w__e_t_h_i_n_k___
Key2. People pay no attention to our environment.
More and more polluted water is piped into rivers,
lakes and seas without any treatment.
Key3. I think our government should take measures
____f_u_t_u_r_e__fo_r__a_l_l _o_f us.
__b__u__y____p__r__o__d__u__c__t__s__t__h__a__t__c__a__u____se____p__o__l__lu____ti__o__n__.__5___
Let’s make new rules and use new
Period 1
-
1
Look at the following pictures
water pollution
rubbish
air pollution
deforestation
desertification
-
ห้องสมุดไป่ตู้
starvation
2
Think about the following questions
Iwfe__w_o_r_k__to_g__e_th_e_r__a_n_d__s_h_a_re
_a_n_d__t_h_e_w__a_y__w_e__li_v_e_.2__L_e_t_’_s_n_o_t_d__ri_v_e__if _w_e__c_a_n__w_a_l_k__o_r_r_i_d_e_a__b_i_k_e_.3__L_e_t_’s__tr_y__
Part 2
Outline the speaker’s arguments.
Argument 1: We should
Argument2W:__e_m__u_s_t_s_t_o_p_p_o_l_l_u_t_in_g__o_u_r_
_ta_k_e__b_e_t_te_r_c_a__re__o_f_o_u__r_w__a_te_r. Problem: water
technology to make sure that factories
are g-reen and clean.
5
Speaking
Work in groups. Read about the situation and write role cards for the discussion. Use the role cards to discuss the situation and decide what to do.
We must
_W__e__a_r_e_p_o_l_l_u_ti_n_g__w_a__te_r__a_t _a_n__a_la__rm__i_n_g
__b_e_m__o_r_e_c_a_r_e_f_u_l_w__h_e_n__w_e__ _p__a_c_e_. _C_a_r_s_,_f_a_c_t_o_ri_e_s_,_a_n_d__a_i_r_c_o_n_d__it_io_ns
____w__h_a_t_w__e_k_n_,ow
_n_o_t_t_o__u_s_e_a_i_r_c_o_n__d_it_i_o_n_e_r_s_m__o_r_e_t_h_a_n__
we__w_i_ll_b__e_b_u_i_l_d_in__g_a__b_e_t_te_r _w_h__a_t _is__a_b_s_o_l_u_te_l_y__n_e_c_e_s_sa__ry_._4__l_e_t’_s_n_o_t
1 __L_e_ar_n_t_o_t_ak_e_b_e_tt_e_r _ca_r_e_o_f _ou_r_w_a_t_er_.__
2 __S_to_p_p_o_ll_u_ti_ng__ou_r_w_a_t_er____________
3 _L_e_a_r_n_to_-s_a_v_e_w_a_te_r_in__ou_r_d_a_il_y_l_if_e __4
1 What is the biggest problem facing the earth? Why do you think so?
2 What causes the problem? 3 What can we do to solve the problem?
Eg:key1. I think water pollution is the biggest problem facing the earth. Because people will not be able to get clean water to drink; therefore, many people will get sick and even die.