1、第 1 页 共 4 页 Book 3 Unit 1 Nature in the balance Reading 1 The Amazon rainforest: a natural treasure 一、一、教学教学目标目标 By the end of this section, students will be able to: 1. summarize the basic information about the Amazon rainforest; 2. master the technique of “making comparisons” to help readers under
2、stand a large figure; 3. evaluate the importance of the Amazon rainforest and the dangers it is facing. 二、二、教学重难点教学重难点 1. To read and understand the documentary script; 2. To make comparisons when talking about a large figure. 三、三、教学教学过程过程 步步 骤骤 教学教学活动活动 设计设计意图意图 互动互动时间时间/ /模式模式 Pre-reading Step 1 S
3、tudents talk about the plants and animals they know about, which involves some features of certain plants and animals. If possible, the teacher can show some pictures to offer some clues. 激发兴趣，定位学 习起点，自然引出学习 任务。 2 Individual Work Step 2 The teacher has students recall their previous knowledge and ex
4、periences of documentaries. The teacher directs students attention to the title of the speech: The Amazon rainforest: a natural treasure as well as the illustrations around the text, and explains to students that the text is a documentary script. Students predict the main 引导学生基于标 题的细节与背景信息， 预测文章主要内容
5、，激 发学生的阅读兴趣，为 后续活动埋下伏笔。 3 Individual Work Group Work 第 2 页 共 4 页 content of the documentary script according to the title and given information. While reading Step 3 First reading Students find the topic sentence of each paragraph by skimming the script and finish A1 on Page 4. During the process, t
6、he teacher can help students understand some new words and expressions. 帮助学生掌握阅 读策略，进行整体阅 读，抓住主题句，从而 把握文章大意与行文 思路。 5 Individual Work Class Work Step 4 Second reading The teacher asks each student to read the text carefully again. Students locate detailed information of figures by scanning the speech
7、 and finish A2 on Page 4. (1)_ countries and one overseas region around (2)_ km2 of forest about (3) _ km in length more than (4)_ plant species more than (5)_ bird species over (6) _ species of mammals over (7) _ of all the Earths oxygen produced about (8) of the rainforest lost over the past 50 ye
8、ars While reading, students are encouraged to use a dictionary if they come across any new words. 进一步梳理细节 信息，提取有关文章主 旨的基本事实性信息， 理清行文脉络，加深理 解本篇纪录片脚本传 达的信息。 5 Individual Work Class Work Step 5 Third reading Students read through Paragraph 3 and Paragraph 4, and get some detailed information as well as
9、 the structure of each paragraph using mind maps. 利用思维导图引 导学生完成对第 3段和 第 4 段细节内容的分 析、梳理与归纳，使思 8 Individual Work Class Work 第 3 页 共 4 页 During discussion, students realize the importance of the Amazon rainforest to plants as well as animals. 维过程可视化。关注段 落结构及衔接手段，更 好地理解文章的内容 逻辑。 Step 6 Fourth reading St
10、udents read the text again and then fill in the chart concerning the structure and main idea of the documentary script. Students summarize the script based on the chart above. While summarizing, students are encouraged to use the strategy of topic sentence at the beginning of each part. 理解文章的结构、 大意以
11、及关键细节信 息。引导学生，有效利 用关键信息，提炼主旨 句，总结全文。 7 Individual Work Class Work Step 7 Fifth reading Students read the text again and then in groups of four discuss the message conveyed by answering the following questions: 1. What makes the Amazon rainforest a natural 理解文章的写作 意图。引导学生理性欣 赏文本，并能用英语积 极自信地表达观点。 10 I
12、ndividual Work Group Work 第 4 页 共 4 页 treasure according to the script? 2. What is your answer to the question at the end of the script? Support your opinion with information from the script or other sources. 3. In the sentence “Yet there is one major danger to these irreplaceable plants and animals
13、: us.” (Page 3, Lines 3334), why does the author choose “us” instead of “human beings”? Step 6 Building the language Students consolidate the use of new words and phrases and finish B1 on Page 5. Check the answers together. The teacher explains the terms “prefixes” and “negative prefixes” to the students. Then the students work in groups to build new words with negative prefixes and finish B2 on the same page. 在新的语境中运 用生词，巩固新知，加 深对文本内容的理解。 掌握构词法，拓展词汇 储备。 3 Individual Work Group Work Homework 1. Write a summary of the script based on the chart discussed in class. 2. Finish the workbook. 2
