Unit 6 Earth First Listening & Speaking （ppt课件）-2023新外研版（2019）《高中英语》必修第二册.pptx

1、Can you see the sun,buildings,people and cars clearly?What is the environmental problem in the pictures?smogSmog comes from the words “smoke”and“fog”,and it is used to describe the air pollution in cities caused mainly by traffic and factories.Smog can be dangerous because it causes severe breathing

2、 problems and infections.Did you know?Predict the topics that may be covered.1.What the word“smog”means.2.When the word“smog”appeared.3.What caused smog in the past.4.What causes smog now.5.The effects of smog on the environment.6.How governments try to reduce smog.7.What will happen if we dont redu

3、ce smog.Listen to the lecture and choose the topics that are covered.1.What the word“smog”means.2.When the word“smog”appeared.3.What caused smog in the past.4.What causes smog now.5.The effects of smog on the environment.6.How governments try to reduce smog.7.What will happen if we dont reduce smog.

4、Listen for the gist12345Listen for the detailsII Listen to the lecture and answer the questions.123Smog in the past1.Term created in:_2.Big problem in London:_ in December 19523.Causes of the problem:burning too much coal and_The term“smog”was first used in the 1800s in cities.Sorry,I made a mistake

5、.It was in the 1900s.1900sThe Great SmogIn December 1952,it suffered from“The Great Smog”.no wind.so a lot of coal was burned at home and in the factories.The problem was that there was no wind,.Listen to the lecture again and fill in the blanks.Smog in the present4.What are the causes of smog in th

6、e present?A.Chemicals coming from factories.B.Chemicals coming from traffic.C.A&B.5.What are the measures to reduce the smog?A.Reduce waste of water.B.Use renewable energy.C.Make no-chemicals rules in the factories.D.Make rules about chemicals in the factories,and requirements of cars in the city ce

7、ntre.45 Listen to the lecture again and choose the best answer.Nowadays,smog still exists,but is produced by chemicals coming from traffic and factories.factories must follow rules about what chemicals they use.people have to pay to drive in the centre.1.The causes of the smog.2.The measures to redu

8、ce smog.burning too much coal and no wind.chemicals coming from traffic and factories.requirements of cars in the city centre rules about using chemicals in the factories.IV What other measures can you think of to reduce smog?lawspeechwalk/ride a bikerenewable energyLED buld tree Make laws to contro

9、l the polluting gas.IV What other measures can you think of to reduce smog?Make laws to control the polluting gas.Walk or ride a bike instead of taking a car.Use renewable energy such as solar energy and wind power.Replace regular bulbs with LED bulbs.Make public speeches to raise peoples awareness.

10、Plant more trees to improve the air quality.Student A:an expert 专家专家 Student B:a reporter记者记者 topics:history/causes/measures/effect.A:Hello everyone.Todays topic is“smog”The term“_”created in_.B:What are the causes of_?A:In the past,_was caused by_.In the present,_ is caused by_.B:Can you give some

11、measures to_?A:We can_.B:_?(or effect)A:_.B:Thank you very much.A:You are welcome.A:Hello everyone.Todays topic is“smog”.The term“smog”created in 1900s.B:What are the causes of smog?A:Sure.In the past,smog was caused by burning too much coal and no wind.In the present,smog is caused by chemicals com

12、ing from traffic and factories.B:Can you give us some measures to reduce the smog?A:Of course.We can walk or ride a bike instead of taking a car,and we can also plant more trees to improve the air quality.B:Were very glad to hear so many measures taken to reduce the pollution.Thank you very much.A:Y

13、ou are welcome.Student A:an expert 专家专家 Student B:a reporter记者记者 Student A:an expert 专家专家 Student B:a reporter记者记者 A:Hello everyone.Todays topic is“smog”The term“_”created in_.B:What are the causes of_?A:In the past,_was caused by_.In the present,_ is caused by_.B:Can you give some measures to_?A:We

14、 can_.B:_?(or effect)A:_.B:Thank you very much.A:You are welcome.topics:history/causes/measures/effect.“If we humanity do not fail Nature,Nature will not fail us.”人不负青山，青山定不负人。人不负青山，青山定不负人。习近平习近平1.What is smog.2.The causes of the smog in the past and in the present.3.The measures to reduce the smog.4.Make an interview.Think of a slogan(标语标语)to call on everybody to reduce smog and design an English poster.Thank you！