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1、崇德 尚美 格物 致知 高一年级 英语 导学案（学生版） 编号：年级高一时间单元B3U1主备人邹妍课型新授课课题Reading课时2审核人高一备课组学习目标1.Read the text and know some aspects of the Amazon rainforest. 2.Learn the words formed with negative prefixes.3.Master the writing techniques of making comparisons.重 点难 点重点1.Read the text and know some aspects of the Ama
2、zon rainforest. 难点2. Learn the words formed with negative prefixes.3.Master the writing techniques of making comparisons.课前准备Ask students to preview new words, and read the passage. 五步法导学过程导学流程启导Step 1 Lead-inWatch a video and answer the following question:If we destroy the Amazon rainforest, the co
3、nsequences would be _and theyve _.学习与展评Step 2 Learning & PresentationI. Pre -readingBefore you read the script, think about the following questions:1. What plants or animals do you know about? What is special about them?_2. What do you think this script is about judging from the title and the pictur
4、es?_II. Fast reading1.Read the documentary script and write the main idea of each paragraph.Para. 1: Introduction to the Amazon rainforestPara. 2: Basic information about the rainforestPara. 3: _Para. 4: _Para. 5: _2.Read the documentary script and choose the best answers.1). The Amazon rainforest i
5、s the largest rainforest in the world. ARight. BWrong. CNot mentioned.2. The Amazon rainforest with an area of about 6 million square kilometres is half the size of China. ARight. BWrong. CNot mentioned.3). Of the 390, 000 plant species in the world, over 40, 000 can be found in the Amazon rainfores
6、t.ARight. BWrong. CNot mentioned.4). More than 1, 700 species of animals hide among the Amazon rainforests plant life.ARight. BWrong. CNot mentioned.5). The Amazon rainforest is a treasure place where wildlife can be used for industrial materials. ARight. BWrong. CNot mentioned.III.Careful reading1.
7、Read the documentary script again carefully and fill in the blanks with the figures on page 4.2.Choose the best answers.1). According to the text, which of the following statements is true? A. The Amazon rainforest plays a significant role in maintaining the balance of protecting the animals ecosyst
8、em. B. The Amazon rainforest crosses into eight countries, including Brazil and Peru, on the North American continent. C. The Amazon rainforest covers an area of around 6 million square kilometres, which is more than half the size of China. D. The Amazon rainforest, from which the river gets its nam
9、e, is about 6, 400 kilometres in length.2). How many species of plants can be found in the Amazonrainforest? A. About 1,300. B. Over 40,000 C. Around 400. D. More than 550.3). Why has 17 per cent of the rainforest disappeared over the past 50 years? A. The balance of protecting the animals ecosystem
10、 disappeared. B. Animals were hunted and plants were damaged. C. This forests food chain was damaged. D. The impact of human activities continues to grow.4). Where is the passage probably taken from? A. A documentary. B. A novel. C. A guidebook. D. A newspaper .IV. Post readingIn pairs, discuss the
11、following questions.1. What makes the Amazon rainforest a natural treasure according to the script?2. Are there any places in China with rich biodiversity like the Amazon rainforest? What are they? Introduce one to the class.巩固Step3 ConsolidationThe Amazon rainforest is home to a great (1)_of plant
12、life; however, its soil is surprisingly poor in nutrients. In fact, the soil in the region cannot support (2)_ for more than a few years. If a scientist is shown a report listing the nutrients of that soil, he or she will probably think that only desert plants can (3)_in it! Then why is the soil so
13、poor in nutrients? For one thing, the rainy season has a(n) (4) _on the soil. In the rainy season, the water level can rise to as high as 12 metres. When the water goes away, it takes away the nutrients in the soil. For another thing, (5)_ the Amazons hot climate, it is difficult for the soil to bui
14、ld up enough nutrients. Dead plants and animals(6) _ more quickly. The nutrients are soon taken in by the roots of the plants deep (7) _ the ground. As a result, most of the forests nutrients are locked up in the plants themselves, (8) _allowing them to grow at an unbelievable speed.精结Step 4 Summary
15、The Amazon rainforestAs the largest rainforest in the world, it plays a _ role in maintaining the fine balance of the Earths ecosystem.Basic information about the rainforestBasic information about the rainforestValue and threats Value and threatsBirds and mammalsPlantsPlantsPlantsl It crosses into _
16、 and one overseas region of France. l It covers around _ square kilometres. l It gets its name from the Amazon River, which is about _ in length. l It has the richest _ on the Earth. Values:* It fixes carbon and produces over _of all the Earths oxygen. Threats:About _ of the rainforest has lost over
17、 the past 50 years due to human activities. There are more than_ species of birds and over _ species of mammals such as the jaguar. The jaguar is only one _ of the food chain.There are more than _ plant species, including _ and _ . 课后作业Step 5 HomeworkWhat is your answer to the question at the end of the script? Support your opinion with information from the script or other sources.板书记录课后反思5学科网（北京）股份有限公司