Unit6EarthfirstDevelopingideas课件- 高中英语外研版（2019）必修第二册.pptx

外研版高中英语必修二 Unit 6 Earth first Developing ideas Do electric cars really help the environment ? Leading-in Here are some questions about “green living” in Activity 1 .Choose the answers you agree with and why?1. Which shopping bag is more environmentally friendly ? A plastic bag . A paper bag. Neither of these. 2. What should you do to save energy when leaving your home? Turn off a device Unplug a device Neither of these. 3. What food is better for the environment? Food produced near to where you live. Food produced far from where you live. It depends. 4. Which uses less water? Taking a bath. Taking a shower. It depends. Read the subheadings in the passage and decide if they are true or false.When you turn off a device, it stops using power.Paper shopping bags are better than plastic ones.Eating local food is good for the environment.Its better to take a shower than a bath. FFIt depends.It depends.SkimmingLearning 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 subheading, they can be skimmed to give the reader an overall understanding of the content of a text. Whats the main idea of the passage?关键词It discusses some common _ which have been shown to be only_ or even completely_green truthsfalsehalf true1.According to common truth，when shopping，we should take_.A.a plastic bag B.a paper bagC.a reusable bag D.a cheap bag2.When you turn off a device，it can_.A.cut off electricity B.protect the applianceC.save too much energy D.turn into stand-by mode3.People choose to eat local food because they think_ .A.its convenient B.it doesnt need transportationC.it uses more energy D.it is good for environmentScanning: reading comprehension4.Whether taking a shower or taking a bath is greener depends on _.A.the temperatureB.the seasonC.the timeD.the amount of water we use5. The passage mainly tells us _ .A we should raise the awareness of environmental protectionB we must take care of the environmentC not all the “green truths” really greenD the common ideas are falseRead the effects and complete the causes14 14 Turning off a device wont stop it from using power. Devices _ go into stand-by mode but still use power because electricity continues to _ the device.turned offleak fromcauseseffects15 15 Eating local food isnt always better for the environment.Local produce sometimes might use more energy and produce more greenhouse _ a long way awayeven _ its transport.gases than produce grown taking into accountcauseseffects16 16 It is not always better to take a shower than a bath.If you spend more than eight minutes on shower, you will use _water_ in a bath-about 50 litres of water.as muchascauseseffectsPlease give a talk about one of the “green truths” in the passageFurther thinking“Green truths” Why is it not completely true?What should we do ? Some people think.However, it is not completely true because.Therefore, we should. How “green” are you? What can you do to become “greener”? Think and sharerefuse to buy over-packaged productsdonate the clothes youve outgrown to othersGreen actions Use less water.Use your own bags instead of a plastic bag.Be green with transportUnplug the device when you are not using it Recycle your trash.Pick up trash : plogging.Start gardening Reuse bottles. Respectespect but with no FEAR but with no FEAR Employmploy but not to DESTROY but not to DESTROY Appreciateppreciate but away from GREED Loveove is HARMONYS u m m a r y To get the overall understanding of a c o n t e x t f r o m subheadings.“Green truths”To think critically.H o m e w o r k Write a short passage on the topic of “what can you do to become a greener?”