Unit6 Earth firstDeveloping ideas 阅读课-（2022）新外研版高中英语必修第二册 ppt课件-(共56张PPT).pptx

1、高一 英语第二册 第6单元 Developing ideas 阅读课一、内容介绍学习目标：1.能够运用因果关系连接词熟练表达因果关系；2.能够运用逻辑性思维和批判性思维梳理和评判生活中的环保观点，运用新学语言复述语篇内容；3.能够通过自主学习了解更多先进的环保理念，增强环保意识，践行绿色生活方式。二、新课导入1.Which shopping bag is more environmentally friendly(环保的)?A plastic bag(塑料袋).A paper bag.Neither of these.Look at the questions about“green livi

2、ng”and tick your answers.2.What should you do to save energy when leaving your home?Turn off a device(关掉设备).Unplug a device(切断电源).Neither of these.Look at the questions about“green living”and tick your answers.3.What food is better for the environment?Food produced near to where you live.Food produc

3、ed far from where you live.It depends.Look at the questions about“green living”and tick your answers.4.Which uses less water?Taking a bath.Taking a shower.It depends.Look at the questions about“green living”and tick your answers.I think a plastic bag is more environmentally friendly.I think a paper

4、bag is more environmentally friendly.I think neither a plastic bag nor a paper bag is environmentally friendly.We need to use a _.You need to use a complete sentence to share your answers.三、知识学习Look at the title and think about the meaning of it.Whats really green?go greenenvironmentally friendlyPap

5、er shopping bags are better than plastic ones.When you turn off a device,it stops using power.Eating local food is good for the environment.Its better to take a shower than a bath.Read the four subheadings(副标题)in the passage,decide whether they are true or false and explain your reasons.?I think the

6、 subheading _ is true/false,because_.The reason why I think the subheading that _ is true/false is that _.Read the four subheadings(副标题)in the passage,decide whether they are true or false and explain your reasons.Read the passage quickly and check your answers.Paper shopping bags are better than pl

7、astic ones.When you turn off a device,it stops using power.Eating local food is good for the environment.Its better to take a shower than a bath.Learning to learnAs subheadings expand on the main heading or title,they can be slightly longer than the main heading.Although not every paragraph needs a

8、subheading,they can be skimmed to give the reader an overall understanding of the content of a text.expand on:to add details to what you are saying 详细阐明 Whats really green?Read the first paragraph,and think about what type of writing it is.be aware that:to realize or know something exists 意识到 the ma

9、jority of:most of 大多数 What type of writing is it?A leader/An editorial.A leader/an editorial:a piece of writing in a newspaper giving the papers opinion on a subject.What is the subject of this writing?What is the papers opinion on“green truths”?Read the first“green truth”and answer the questions.Wh

10、y do people think plastic bags are bad for the environment?Why are paper bags not good for the environment?What kind of bag is a better choice?Read the first“green truth”and answer the questions.Why do people think plastic bags are bad for the environment?cause litter&are a danger to wild animals ta

11、ke hundreds of years to break downmistakefor:to wrongly think one person or thing is someone or something else.误以为Something changes as a result of a chemical process.分解Read the first“green truth”and answer the questions.four times as much energy as making a plastic bag Why are paper bags not good fo

12、r the environment?Because making a paper bag usesRead the first“green truth”and answer the questions.Why are paper bags not good for the environment?up to three times the amount of water(耗水量)Because making a paper bag uses four times as much energy as making a plastic bag Read the first“green truth”

13、and answer the questions.What kind of bag is a better choice?A reusable bag.reuse:to use something again.What else can be reused in our daily life?shopping bagthermos(保温杯)coffee cupmeal boxRead the second“green truth”and answer the questions.Why does the device(设备)still use power when its turned off

14、?Why is the word“off”put into a quotation mark?Read the second“green truth”and answer the questions.Because electricity continues to leak(泄露)from the device even when it is turned“off”.Why does the device(设备)still use power when its turned off?Read the second“green truth”and answer the questions.Why

15、 is the word“off”put into a quotation mark?Because the appliance(电气设备)is not really off,and it goes into stand-by mode(待机模式)and still uses power.removefrom:take something away 将移开 What can you learn from this“green truth”?What else can we do to save energy(electricity or water)?We need to remove our

16、 cellphone charger(充电器)from the power supply,and also unplug other household appliances,for example,washing machine,television,reading lamp and so on.Read the third“green truth”and answer the questions.Why do people think eating local food is better for the environment?Why is eating local food not a

17、lways better for the environment?Read the third“green truth”and answer the questions.Why do people think eating local food is better for the environment?common sense:the ability to think about things in a particular way and make sensible decisions 常识Read the third“green truth”and answer the question

18、s.It is _ that _ 强调的部分 The production of food uses most of the energy and produces most of the greenhouse gases.Read the third“green truth”and answer the questions.Why is eating local food not always better for the environment?produce:food or other things that have been grown or produced on a farm t

19、o be sold 农产品 take something into account:to consider particular facts or details when making a decision about something 考虑到Read the fourth“green truth”and answer the question.Why is it not always better to take a shower than a bath?the key is to do去做的关键是 What is the papers suggestion about the“gree

20、n truths”?worth doing:used to say that something is interesting,useful,or helpful 值得做的 Read the last paragraph and answer the question.After you read the passage,which of the“green truths”surprises you most?Give your reasons.The“green truth”that _ surprises me most,because_.I find the“green truth”th

21、at _ most surprising,because _.Think and share四、讲练结合Underline the causes and think about how to connect the causes and effects.causeseffectsMaking a paper bag uses more energy and water than making a plastic bag.It also produces more greenhouse gases.Paper bags are not good for the environment.What

22、words can be used to connect the causes and the effects?Find out the signal words of cause and effect from the passage.Find out the signal words of cause and effect from the passage:“Green truth”1:because of+cause(phrase 短语)“Green truth”2:because+cause(clause 从句)“Green truth”3:therefore+effect(claus

23、e 从句)Can you come up with other signal words of cause and effect?causeseffectsso,therefore,thus,then,as a result,consequentlyDevices turned off go into stand-by mode and still uses power,turning off a device wont stop it from using power.SincecauseseffectsSince devices turned off go into stand-by mo

24、de and still uses power,turning off a device wont stop it from using power.Connect the causes and the effects.effectscausesbecause,if,due to the fact that,Turning off a device wont stop it from using power,devices turned off go into stand-by mode and still uses power,Connect the causes and the effec

25、ts.because,if,due to the fact that,Connect the causes and the effects in activity 3.so,therefore,thus,then,as a result,consequentlySincecausescauseseffectseffectseffectscausesChoose one“green truth”and retell it in the following structure,using the words newly learnt.Start your retelling by stating

26、the topic.Describe the“green truth”in more detail-why people believe its“green”.Explain why it is not completely true.Start your retelling by stating the topic.Describe the“green truth”in more detail-why people believe its“green”.Explain why it is not completely true.be aware that,take care of,the m

27、ajority of,take steps to,save energy,reduce waste,reduce pollution,mistake for,break down,reusable,turn off,go into stand-by mode,leak from,remove from,common sense,take into accountso,therefore,thus,then,as a result,consequently,sincebecause,if,due to the fact that Retell one“green truth”.五、应用实践 Ar

28、e you aware of any other“green truths”that are not true?Think and share Start your retelling by stating the topic.Describe the“green truth”in more detail-why people believe its“green”.Explain why it is not completely true.Topic:Are electric cars really“green”?Description:Electric cars run on electri

29、city and they dont burn gasoline at all;therefore they dont emit CO2,thus creating“zero emission”(零排放).Think and share Description:Although driving an electric car does not cause any air pollution,the pollution mainly comes from the production of its battery(电池)and the electricity used to keep it ru

30、nning.The production of the electric batteries requires lithium(锂).A large amount of energy is used on mining and processing this metal.Meanwhile,the electricity by which electric cars are powered is mainly from burning coal or gas.All of these contribute to carbon emissions.Consequently,electric ca

31、rs arent really green.Think and share How“green”are you?Think and shareWhat can you do to become“greener”?refuse to buy over-packaged productsdonate the clothes youve outgrown to others六、作业Search more information about the“green truths”on the Internet,decide on one and write a short paragraph about it.Homework:Start your writing by stating the topic.Describe the“green truth”in more detail-why people believe its“green”.Explain why it is not completely true.End your talk by encouraging others to become“greener”.七、结语Thank you for listening!