（2021新教材）牛津译林版必修第一册英语 Unit 1 Welcome & Reading分析（自制） ppt课件.ppt

1、Let us not, however, flatter ourselves overmuch on account of our human victories over nature. For each such victory nature takes its revenge on us. Friedrich Engels “但是我们不要过分陶醉于我们人类对自然界的胜利。对于每一次 这样的胜利，自然界都对我们进行报复。” 弗里德里希 恩格斯 恩格斯是德国哲学家、革命导师。这句话选自他的劳动在从 猿到人转变过程中的作用一文，意在告诫我们：人类要和自 然和谐相处 The human race

2、 has done much harm. We have polluted our soils and seas, And cut down too many trees. Now is the time to sound the alarm. We want to live in a world thats clean; We want to live in a world of green. The human race has done much harm; Now is the time to sound the alarm. Lets be thankful for the skie

3、s above; Lets plant new trees and stop pollution; Lets work together to find the solution; The Earths our home to protect and love. We want to live in a world thats clean; We want to live in a world of green. Lets be thankful for the skies above; The Earths our home to protect and love. 1. What is t

4、he message of the song? Comprehension Humans have done much harm to the Earth, and we have to take action to change this situation. Comprehension 2. What can you do to protect the environment? We can use less paper and fewer plastic bottles and bags. Cutting down on electricity usage can also help r

5、educe the air pollution that power stations create. The world we live in is full of natural wonders. The documentary script below describes the Amazon rainforest, which is home to a wide range of wildlife, Before you read the script, think about the following questions: What plants or animals do you

6、 know about? What is special about them? What do you think this script is about judging from the title and pictures? natural wonder 自然奇观 be full of 充满. be home to .的家园/栖息地 documentary script 纪录片脚本 A wide range of .各种各样 的. judging from 从.判断 The Amazon rainforest: a neural treasure welcome to the jung

7、le, a huge sea of green alive with the sounds of animals. This is the Amazon rainforest. As the largest rainforest in the world, it plays a significant role in maintaining the fine balance of the Earths ecosystem. a sea of 大片的，成片的 see a sea of smiling faces 看到一片笑脸 alive with充满，到处是 play a significant

8、 role in doing sth. 在-方面起重要作用。 maintain the fine balance of sth 保持.的微妙平衡 The Amazon rainforest crosses into eight countries, including Brazil and Peru, and one overseas region of France, all on the South American continent. With an area of around 6 million square kilometers, the Amazon rainforest is

9、 more than half the size of China. The Amazon River, from which the rainforest gets its name, is close to 6,400 kilometers in lengthroughly 100 kilometers longer than the Yangtze River. crosses into: 横跨 With an area of 面积为. more than half the size of China:是中国国土面积的一半 以上 The Amazon River, from which

10、the rainforest gets its name, is close to 6,400 kilometers in length roughly100 kilometers longer than the Yangtze River. 句中from which the rainforest gets its name是“介词+关系代 词”引导的非限制性定语从 句，为先行词The Amazon River提供补充信息，先行词 和非限制性定语从句用逗号 隔开。 倍数表达法： 1.A+be+倍数+the size/height/weight/length/width/depth of +B

11、2. A+be+倍数+比较级+than B 3. A+be+倍数+as+ 形容词/副词+as 4. 倍数+what On its journey from the mountains to the ocean, the river supports many different ecosystems. They give this area the richest biodiversity on the Earth: one in ten known species in the world can be found here. one in ten known species in the

12、world can be found here. 世界上十个已知物种中就有一个可 以在这里找到。 Of the 390,000 plant species known to us, more than 40,000 can be found in the Amazon. This tall and ancient brazil nut tree produces nuts that we can eat; these water lilies are big enough to lie down on. The forests different levels support an unbel

13、ievable variety of wildlife. At the bottom, there is a system of roots beneath the ground. This tall and ancient brazil nut tree produces nuts that we can eat. that we can eat 是 that引导的定 语从句，修饰先行词nuts，关 系代词that作eat的宾语。 Above that is the mass of leaf litter on the dark forest floor. Above that is the

14、 mass of leaf litter on the dark forest floor. The next level is made up of shorter plants with large leaves. Then there are the towering ancient hardwoods, and finally the tops of the tallest trees many meters above the ground. Each level of the forest forms its own little world, home to different

15、kinds of living things. 本句中介词短语Above that放 在句首，用全部倒装。 towering: 高大的；高耸的 More than 1,300 species of birds and over 400 species of mammals hide among the jungles plant life. This jaguar is one example. It has a yellowish- brown coat with black spots. While a significant number of jaguars survive here,

16、 they are only one element of this forests food chain. yellowish-brown：黄褐色; 黄 棕色 While a significant number of jaguars survive here, they are only one element of this forests food chain. 1.While he loves his students, he is very strict with them. 2. Strike while the iron is hot. 3. Some people waste

17、 food while others are starving. 尽管尽管这里生存着数量可观的美这里生存着数量可观的美 洲豹洲豹，但它们仅仅是雨林食物但它们仅仅是雨林食物 链上的一环链上的一环。 尽管尽管 当当时时 然而然而 They feed on at least 87 species, including frogs. These frogs, in turn, feed on insects which eat leaves and fruit. When a jaguar dies, a tiny army of microorganisms helps break down its

18、 body and return the nutrients to the earth. feed on：以-为食；喂养 in turn：相应地；转而 1.The price includes both house and furniture. 2. I hate animals, including dogs. 3. I hate animals, dogs included. Vt. prep. adj. These frogs, in turn, feed on insects which eat leaves and fruit. 本句是主从复合句。句中which eat leaves

19、 and seeds是定语从句，修饰 先行词insects，关系词which在从 句中作主语。本句是主从复合句。 When a jaguar dies, a tiny army of microorganisms helps break down its body and return the nutrients to the earth. 句中When a jaguar dies 是when引 导的时间状语从句时间状语从句，主句中的and 连接两个动词短语。 当一只美洲豹死亡时，一小群微生 物 (microorganism) 会 帮 助 分 解 (break down)它的尸体并将营养物将营

20、养物 质质(nutrient)返回土壤返回土壤。 The Amazon rainforest breathes life into the planet by fixing carbon and producing over 20 per cent 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 food or medi

21、cine. Moreover, the Amazon rainforest is a treasure house of species that can be used for food or medicine. 本句是主从复合句。句中that can be used for food ormedicine是定语 从句，修饰先行词a treasure house of species,关系代词 that在 从句中作主语。 fix carbon：固定碳 Yet there is one major danger to these irreplaceable plants and animals

22、: us. Over the past 50 years, about 17 per cent of the rainforest has disappeared due to human activities such as agriculture and cattle farming. Over the past 50 years, about 17 per cent of the rainforest has disappeared due to human activities such as agriculture and cattle farming. As the impact

23、of human activities continues to grow and the list of species in danger of extinction becomes longer, we are left with a question: can we afford to damage the “lungs of the planet? 本句是as引导的时间状语从句，该 从句中and连接两个并列句。 随着人类活动影响的不断增加， 濒危物种的名单越来越长，这留 给我们一个问题：我们能承担得 起损害“地球之肺”的后果吗？ a. The impact of the stone

24、against the windowpane shattered the glass. b. Her fathers death impacted greatly on her childhood years. 1. vi. to have an effect on 2. n. the act of one object hitting another Read the documentary script and write the main idea of each paragraph. (P4) Para. 1: Para. 2: Para. 3: . Pare. 4: . Para.

25、5: . Introduction to the Amazon rainforest. Basic information about the rainforest. Plant biodiversity ；Levels of the rain forest Animal biodiversity；Food chain The rainforests value to the human race; threats to the rainforest Read Paragraph 3 and complete the mind map about different levels of the

26、 rainforest. (4) (3) (2) (1) a system of roots beneath the ground The forests different levels the mass of leaf litter shorter plants with large leaves towering ancient hardwoods the tops of the tallest trees A3 1. What makes the Amazon rainforest a natural treasure according to the script? The Amaz

27、on rainforest is unique, beautiful and valuable. It contains 10% of all known species on the Earth. It produces over 20% of the planets oxygen. Its wonderful plant and animal species have enabled humans to make amazing discoveries. A3 2. What is your answer to the question at the end of the script?

28、Support your opinion with information from the script or other sources. No. The Amazon rainforest is far too important for us to allow it to be destroyed. It helps maintain the balance of the ecosystem and provides our society with food and medicine. Writing purpose:_ Call for us to protect the natural treasurethe Amazon rainforest variety B1 P5 agriculture survive impact due to break down beneath thus unimportant; unfit; unwell; unfriendly Part B2 on P5 dislike; disabled; disagree incorrect; inconvenient; impossible; illegal nonverbal; nonfat;