1、Unit 1 Nature in the balanceReading Lead-inLet us not,however,flatter ourselves overmuch on account of our human victories over nature.For each such victory nature takes its revenge on us.Fredrich Engelspunish someone who has made it sufferthink too highly of ourselvesWelcome to the unitListen to th
2、e song!1.How do you understand“harm”and“alarm”?“Harm”means something bad we have done to the earth,including polluting soils and seas,cutting down too many trees,etc.“Alarm”means the signal that warns us of the dangers of environmental damage,which urges us to find a solution.2.What is the massage o
3、f the song?Humans have done much harm to the Earth,and we have to take action to change this situation.Pre-readingWhat can you learn about the Amazon rainforest in the video?PredictionThe Amazon rainforest:a natural treasurePredict what the article is about according to the title and pictures in the
4、 text?Fast reading2.Read carefully to complete part A1 on page 4 with the main idea of each paragraph.Para.1:Introduction to the Amazon rainforestPara.2:Basic information about the rainforestPara.3:_Para.4:_Para.5:_Plant biodiversity：levels of the rainforest（plants）Animal biodiversity：food chain（bir
5、ds and animals）The rainforests value to the human race;threats to the rainforest1.What is the general idea of this passage?The _ and the _ of the Amazon rainforest.importancedangerPassage Structure IntroductionBasic informationPlant biodiversityDifferent levelsAnimal biodiversityFood chainImportance
6、DangerStep 4 Reading for specific informationWhy are so many numbers are used here?1.to provide specific and accurate information 2.to make people realize the importance of the rainforest in a direct wayoffering factsPara.1 Read carefully and try to find the theme of this script.While readingIntrodu
7、ction 2.Who may be the target audience of this documentary?How can you tell?Para.2 1.What does“they”refer to in L10?It may target at Chinese people because the author makes comparisons with China to make the audience understand.The Amazon rainforest is more than half the size of China.-roughly 100 k
8、ilometers longer than the Yangze River.It refers to the Amazon rainforest and the Amazon river.Basic informationmaking comparisonsBasic informationRead para.2 1.v_ area2.riches b_ ast iodiversityHorizontal 横向的横向的Read Para.3 Plant biodiversitywater lilybrazil nut tree(4)(3)(2)(1)a system of roots ben
9、eath the groundthe mass of leaf littershorter plants with large leavestowering ancient hardwoodsthe tops of the tallest treesRead Para.3 Plant biodiversityComplete the mind map about different levels of the rainforest.Vertical纵向的纵向的Home to different kinds of living thingsJaguarsAt least 87 species,i
10、ncluding frogsMicroorganisms Para.4 Animal biodiversity&food chainComplete the following chart about the food chain in the rainforest.InsectsCircular循环的循环的giving an exampledifferent plant levelscomplicate food chainsoffer places to live(habitat)provide food and nutrients the richest biodiversityThe
11、reason why Amazon rainforest has the richest biodiversity in the world.Horizontal 横向的横向的Vertical纵向的纵向的Circular循环的循环的How is it made clear?lungs of the planetPara.5 Importance&Danger1.What is the function of the rainforest to us?fix carbonproduce oxygena treasure house of species2.What is the major th
12、reat to the rainforest?using metaphors The Amazon rainforest breathes life into the planet by fixing carbon and producing over 20 percent of all the Earths oxygen.Thus,it is often known as the“lungs of the planet”.Moreover,the Amazon rainforest is a treasure house of species that can be used for foo
13、d and medicine.Yet there is one major danger to these irreplaceable plants and animals:us.the importance of the rainforest:the danger of the rainforest:Mind mapBasic informationlocation and sizeName:getting its name from(1)_richest(2)_ Amazon rainforestAnimalsmore than 1,300 species of birds and ove
14、r 400 species of(5)_ elements of this forests(6)_ Plantsmore than 40,000(3)_different(4)_ of the forest Significancefix carbon and producing(7)_ having species used for(8)_ Dangerthe major danger:(9)_ disappearing due to human activities such as(10)_ and cattle farmingthe Amazon riverbiodiversitypla
15、nt specieslevelsmammalsfood chainoxygenfood or medicineus/human beingsagriculture1.What makes the Amazon rainforest a natural treasure according to the script?Post reading 2.What is the purpose of this docmentary?To emphasis the importance of the Amazon rainforest and call for our joint efforts to p
16、rotect it.3.What skills does this docmentary use to make it clear?facts,metaphors,examples&comparisons.for plants a natural treasure for human beingsfor animalsDiscussion What can we do to protect the Amazon rainforest?HomeworkWrite an proposal about protecting the Amazon rainforest.The following parts should be included.Importance Danger Solutions Thus,.Moreover,.Yet.
