1、Unit 1 Reading 1 The evolution of video and sound devices 高中英语高中英语 必修（第三册）必修（第三册） Unit 1 Nature in the balance Reading 2 The Amazon rainforest: a natural treasure How does the documentary script make clear the size of the Amazon rainforest and the length of the Amazon River? B3 Appreciation Sentence
2、s using comparison: With an area of around 6 million square kilometres, the Amazon rainforest is more than half the size of China. The Amazon River, from which the rainforest gets its name, is close to 6,400 kilometres in lengthroughly 100 kilometres longer than the Yangtze River.” B3 Appreciation W
3、hile the reader may find a large figure too abstract to understand, making comparisons with familiar places or objects will help them gain a better understanding. Here are some expressions used to make comparisons: the same size/length as as large/long as more than/larger than/longer than twice/thre
4、e times as large/long as B3 1. It was reported that in 2011, about 34 million people lived in the Amazon. (population of Canada: 37 million; population of Shanghai: 24 million) Consolidation It was reported that in 2011, about 34 million people lived in the Amazonthat is about Canadas total populati
5、on. It was reported that in 2011, about 34 million people lived in the Amazonthat is 10 million more than the population of Shanghai. B3 Consolidation 2. From 2001 to 2012, about 177,000 square kilometres of the Amazon rainforest were lost. (size of New Zealand: 268,000 km2; size of Jiangsu: 107,200
6、 km2) From 2001 to 2012, about 177,000 square kilometres of the Amazon rainforest were lostthat is more than half the size of New Zealand. From 2001 to 2012, about 177,000 square kilometres of the Amazon rainforest were lostthat is about twice the size of Jiangsu. What other writing techniques are e
7、mployed in the script? Find examples from the script. Appreciation The author also uses writing techniques like citing examples, listing numbers and giving definitions. For example, “More than 1,300 species of birds and over 400 species of mammals hide among the jungles plant life. This jaguar is on
8、e example” “Moreover, the Amazon rainforest is a treasure house of species that can be used for food and medicine.” What is the function of those writing techniques? Appreciation To make the information conveyed more precise and accurate. What is the type of the script? Exposition. It is a writing g
9、enre which aims at explaining or providing readers with information to help them understand the world. Post-reading A3 Are there any places in China with rich biodiversity like the Amazon rainforest? What are they? Introduce one to the class. The Three Parallel Rivers of Yunnan Protected Areas is a
10、natural property consisting of 15 protected areas. The property is of outstanding value for its diversity of landscapes and rich biodiversity. In its 15 different protected areas, there are over 6,000 plant species, around 200 mammal species and more than 400 bird species. A large number of rare ani
11、mals such as Yunnan golden monkeys, snow leopards and black necked cranes can be found here. 1. What is the Ant Forest Programme? Post-reading The Ant Forest Programme is an innovative approach coming from a mobile Internet financial service company of China. It aims to combine the Internet, finance
12、 and a low-carbon lifestyle to turn virtual trees that users grow on the online platform into real ones. This move contributes to the growth of the number of trees in China, as well as to protecting the environment. 2. How does the Ant Forest Programme work? Post-reading In the Ant Forest Programme,
13、 any activities of the user that are considered low-carbon can be counted and converted into virtual “green energy”. These activities include walking instead of driving, paying for utilities and buying tickets online, taking public transport and so on. The so-called virtual “green energy” generated
14、by such activities are saved in the users “Ant Forest” account. When enough “energy” has been accumulated to grow a virtual tree, it will be converted into a real tree, planted by the staff. 3. Do you support the Ant Forest Programme and why? Post-reading Yes, I like this programme very much. Firstl
15、y, the idea that a real tree could be planted as long as I keep on taking part in low-carbon activities definitely helps me choose an environment-friendly lifestyle. Secondly, the Ant Forest Programme has a lot of fun because it has many social interaction functions, such as watering friends trees o
16、r “stealing” green energy from them. Thirdly, I think it enables us to have a better understanding of environmental protection and makes our contributions mean something, no matter how small they are. Homework 1. Find more examples of the writing techniques of expositions in the script to better understand the genre. 2. Finish the workbook. Homework 1. Read this article aloud. 2. Finish the workbook. 谢谢 谢谢
