UNIT 8 Lesson 47教学详案—冀教版中学英语八年级下

UNIT 8　Save Our World
Lesson 47: Connected to Nature
设计说明 首先老师通过描述自然界的所有事物都是紧密相连的以及每种生物的重要性来引出本课的话题Connected to Nature(连接大自然)，然后引入教材Think about it的学习。教授新单词和短语，完成Let’s Do It! 2题的词汇训练，为后面的课文学习扫清障碍。再通过听课文音频，完成Let’s Do It! 1题中的练习；接着，读课文，回答相关问题。完成Let’s Do It! 3题的拓展阅读。对课文中的重、难知识点进行讲解。最后，完成当堂达标检测题目。 教学目标 通过本课节的教学，学生达成以下目标： 1.知识目标 掌握单词：ant, die, dead 接触单词：bee, dove, species, respect 短语：start out, live off, die off 2.能力目标 (1)掌握一些与大自然有关的词汇和重点句子； (2)听懂关于环境问题的描述，并表达自己的观点，参与讨论。 3.情感目标 通过本课节的学习，使学生了解星球上的生物间相互依存的因果关系，培养学生对大自然、对地球和地球上的生物的热爱，开阔视野，培养责任感。 重点难点 1.重点：掌握本课节的词汇和重点句型。 2.难点：运用所学知识谈论能为大自然做些什么。 教学准备 PPT 课件；本课节用到的音频文件 授课时数 1课时 教学过程 Step 1　Lead-in T: As we all know everything is connected to each other in nature. If one has anything wrong，some bad things will also happen to another. Do you want to know more about how everything is connected Today let’s learn more about it. T: Have you noticed this kind of relationship If the grass is destroyed, what will happen T: What can we do for nature ● We should plant more trees instead of cutting down more. ● Sort the garbage to reduce pollution. ● Don’t throw rubbish about. ● Drive less, walk more. ● Protect wild animals from being killed. ... Step 2　Thinking about it Ask the students to think about the questions. Do all the living things on the planet depend on one another What can we do for nature Step 3　New words 1. Teach the new words and phrases of this lesson. bee /bi / n.蜜蜂 ant / nt/ n.蚂蚁 dove /d v/ n.鸽子 die /da / v.（现在分词为dying）死 dead /ded/ adj. 死的 species / spi i z/ n.物种；种类 respect /r spekt/ v.尊敬；敬重 start out启程，出发；开始做 live off以……为食；以……为生 die off相继死去；灭绝 2. Ask the students to read them in groups. 3. Fill in the blanks with the correct forms of the words in the box. respect connect die dead follow
1. His mother has been 　　　　 for ten years. 2. People should 　　　　 and understand each other. 3. Don’t always 　　　　 others. You should have your own ideas. 4. We are 　　　　 by the Internet. 5. The trees 　　　　 out, and this place became a desert. Answers: 1. dead　2. respect　3. follow　4. connected　5. died Step 4　Listening Listen to the tape and put these sentences in the correct order. All living things are connected. We should protect the environment. Living things live in the world. All living things need water and food to grow. Answers: 3,4,1,2 Step 5　Reading Read the text and answer the questions. 1. How do living things start out and grow 2. Where does a tree get food when it’s hungry 3. Do all birds live off fish 4. What may birds do if they eat the sick or dead fish Answers: 1. They start out weak and small and slowly grow strong and big. 2. It gets food from the soil. 3. No. 4. They may die off. Step 6　Practice Read the passage and fill in the blanks with the sentences below. Many years ago, there were more animal species than there are now. There were many forests. The rivers were clean. The sky was blue. Birds sang from morning until night. 　　　　 But later, people cut down the trees in the forests, killed the animals and built factories and buildings. 　　　　 People’s houses were buried by soil in floods. Some animals lost their homes, and they attacked people. Some factories polluted the air, water and people’s food. The earth is getting warmer. Some scientists say the sea level will rise by at least 1 metre in the next 100 years. 　　　　 People are now living in a worse and worse environment. 　　　　 We need to reduce pollution and protect our environment. A. Some houses beside the sea will disappear. B. People lived together with many kinds of animals. C. We should do something to save our world. D. They changed the earth.
Answers: B　D　A　C Step 7　Language points 1. The natural world is filled with living things. 自然界充满了生物。 be filled with 充满……, 与be full of同义。 My father’s study is filled with/full of books.我爸爸的书房里满是书。 2. Living things start out weak and small and slowly grow strong and big. 生物开始很弱小，慢慢地长大，变强壮。 start out意为“启程，出发，开始/着手做”。 We started out by preparing for the sports meeting. 我们通过为运动会做准备开始的。 3. If we pollute the rivers and oceans, fish may get sick or even die. 如果我们污染了河流和海洋，鱼类会生病，甚至会死亡。 (1) 辨析: sick 与 ill ①sick 形容词，生病的，不舒服的，在句中既可作表语，也可作定语。 The sick girl asked for a day’s leave.那个生病的女孩请了一天的假。 ②ill形容词，生病的。作此意讲时，在句中只能作表语。 He is seriously ill and unlikely to recover.他病得非常厉害，不大可能康复了。 (2)die动词，死，为非延续性动词，不与时间段连用。其过去式为died，现在分词为dying,名词形式为death。 His grandfather died two years ago.他的祖父两年前去世了。 His cat’s death made him sad.他的猫的死让他很伤心。 【拓展】常用短语：die of/ from死于; die off 相继死去，灭绝；die out灭绝。 4. Some birds live off fish. 一些鸟以鱼为食。 live off 意思是“以……为食；以……为生；依赖……生活” 。 We should not live off our parents all our life. 我们不应该一辈子都依靠父母生活。 Most of the Asians live off rice. 大多数亚洲人以大米为主食。 5.We should respect the earth and all the living things on it. 我们应该尊重地球和地球上的一切生物。 respect 动词，尊敬；尊重。其形容词为respectable(值得尊敬的；受人尊敬的)。 We should respect the old and love the young. 我们应该尊老爱幼。 Step 8　Summary 1. Learn some new words and expressions. 2. Be able to understand the passage. 3. Know the importance of the nature and the connection between human and nature. Step 9　Homework 1. Finish the exercises of Lesson 47. 2. Preview the next lesson. 3. Tell your relatives and friends about the importance of protecting nature. 当堂达标 根据汉语提示完成短语 1. The natural world 　　　　 living things. (充满……) 2. Living things 　　　　 weak and small and slowly grow strong and big. (启程，出发；开始做) 3. We all live on the same planet, and we 　　　　 each other.(依赖) 4. Some birds 　　　　 fish.(以……为食；以……为生) 5. If the birds eat the sick or dead fish, they may 　　　　. (相继死去；灭绝) 答案：1. is filled with　2. start out　3. depend on　4. live off　5. die off 板书设计 UNIT 8　Save Our World Lesson 47: Connected to Natureant; die; dead; be filled with; start out; depend on; live off; die off1. If we pollute the rivers and oceans, fish may get sick or even die. 2. If the birds eat the sick or dead fish, they may die off.
教学反思