Module 1 Nature and environment Unit 3 Electricity More practice 课件2024-2025学年牛津上海版（试用本）八年级英语下册

Unit 3 Electricity Module 1 Nature and environment More practice: Electricity works everywhere We have learned… 2 facts about electricity. electrical appliances in Benny’s flat. electrical safety at home and outside. how to save electricity. electrical safety rules for workplace and schools. In the previous lessons, we have learned many things about electricity, what is electricity, what does it look like, where does it come from, electrical safety at home and outside, how can we save electricity. make electrical safety rules for workplace and schools. Do you know what we will talk about in today’s lesson? 2 Read for general idea: 3 What does “everywhere” refer to? It refers to cities and the countryside. We will read an article today. This is the title of it. Electricity works everywhere. What does everywhere refer to? 3 4 Draw a mind map 5 2. Does the last sentence give a fitting conclusion? Why or why not? Yes, it does. The topic sentence is “Almost everyone today uses electricity in one way or another”. The last sentence explains that electricity plays an important role both in the countryside and in the cities. Read for details: 6 Where would you find the text? What is its target audience? What kind of text is this? Is it a story? Why or why not? “Electricity works everywhere” is an expository passage. It is not a “story”. This text lists and describes the uses of electricity in the cities and the countryside. There is no plot or characters. In an encyclopedia, on a website, a newspaper, a magazine or at an exhibition. The target audience is children/teenagers/adults who are interested in electricity and want to know more about it. Read and think: "Electricity works everywhere" might be found in an encyclopedia, on a website, a newspaper, a magazine or an exhibition The target audience for both texts is children/ teenagers/ adults who are interested in electricity and want to know more about it. Both texts provide facts and details about electricity. Their main purpose is to inform. They are both simple and easy to read. 6 What is the topic sentence in “Electricity works everywhere”? What details support it? 7 Almost everyone today uses electricity in one way or another. light streets and buildings. warm people and animals. heat food in cookers. cool food in refrigerators. drive trains and work traffic lights and lifts. work machines in factories. power computers, televisions and electrical machines. milk cows. chop food. churn butter. Read for details: Electricity is used to churn / t n / v. In one way or another: in some way; in a certain way. Everyday wonders: 7 8 light streets and buildings. warm people and animals. heat food in cookers. cool it in refrigerators. drive trains and work traffic lights and lifts. work machines in factories. power computers, televisions and electrical machines. milk cows. chop food. churn butter. Electricity is used to for lighting. heating. cooking. storage. transportation. manufacturing. entertainment. farming. agriculture. food production. Read for details: 8 Read and think: What is the most important use of electricity? What is the most surprising use of electricity? Where is electricity needed and used more—in the cities or in the countryside? 9 What is the most important use of electricity? Where is electricity needed and used the most— city or countryside? What is the most surprising use of electricity? You know what, there is no correct answer for the questions. You can pick what you think is the most important use in the text and explain your reasons. 1. S1: I think the most important use of electricity is powering the trains and traffic lights. Thanks to electricity, trains go much faster and people are able to get from one place to another quicker. It's also clean energy. Traffic lights keep the traffic moving. We get places more efficiently. S2: I think electricity is important for the operation of modern technologies every day. These surgical operations won’t even start without electricity. For example, the doctors need a powerful light during an operation on a patient and without electricity, the light won’t function and operation can not be done. 2 S1: I think none of the uses mentioned in the passage surprises me, because electricity provides power for a lot of electrical devices in your life. We think about electricity when we use it. S2: I think the most surprising use of electricity is to run computers and televisions. These electrical devices entertain and inform people in their homes. But we hardly think about electricity when we watch tv or play computer games. Many of us take electricity for granted. 3. S1: Electricity finds as much work to do in the countryside as it does in the cities. But because cities are denser (more things are happening and more people live in cities), I think electricity is needed and used more in the city. S2: I don’t agree. In the text, the write tells us that electricity finds as much work to do in the countryside as it does in the cities. 9 Read and categorize: Complete the mind map to show how electricity is used in the cities and in the countryside. 10 uses of electricity city countryside The passage describes how electricity is used in the city and in the countryside. Look at the mind map, we have “uses of electricity” in the middle and “city” and “countryside” branching out on either side. You can list the uses under each subhead and add others. Make connections between the two places 1分钟 10 11 uses of electricity city countryside lighting heating cooking storage transportation manufacturing entertainment scientific research medical care agriculture food production feeding cooking lighting storage washing Student’s sample Read and categorize: Is it easy to classify(分类) uses of electricity by city and countryside? Why or why not? S1: Yes, it is. Because electricity is mostly applied in business, manufacturing, transport and entertainment in cities while it's mostly applied in agriculture/ food production in the countryside. S2: No, it isn't. Because the differences between uses of electricity in cities and in the countryside are becoming fewer. There are many overlaps between them. Electricity is a big part of any modern society. What might be a better way to categorize(把…分类) uses of electricity? Venn gram Spider gram 11 12 If the categories are City vs. Countryside, it may be better to use a Venn Diagram to organize the uses. city countryside Read and categorize: 13 Sample Venn diagram Read and categorize: If the categories are City vs Countryside it may be better to use a Venn Diagram to organise the uses. See Venn Diagram 13 Verbing 14 What do you think of the verbs in the text? milk the cows light streets warm people heat food cool the milk v. n. work machines conversion switch n. , v. adj. cool adj. , v. verbing chop their food churn the butter What do you think of the verbs in the text? Do some of them sound strange to you? S: I never know that milk can be used as a verb. Many English words can be used in more than one part of speech. A rather more common pattern is for a word to have two parts of speech. In particular, About a fifth of all English verbs were originally nouns. Do you still remember the pictures? Plug and switch are used both as nouns and verbs. Technically, this very common process in English is known as conversion: it converts a word into a different part of speech. One particularly common form of conversion is using nouns s as verbs, and sometimes adjectives as verbs. This specific process is called verbing. 14 Uses of electricity 15 Can you use these ‘verbs’ to talk about electricity and its uses? toast cool/air microwave wire power We can toast a pizza in an electric oven. An electric fan cools the air in the room. You should never microwave an egg. Before electricity is wired to our flat, it passes through a meter. Electricity costs less than petrol, so powering an electric vehicle is cheaper. We can toast a pizza in an electric oven. An electric fan cools the air in the room. We can use the electric fan to air the room. You should never microwave a hard boiled egg. (it’s likely to explode) Before electricity is wired to our flat, it passes through a meter. A home owner should wire his own house under the direction of an electrician. Electricity costs less than petrol, so powering an electric vehicle is cheaper. Using electricity to power a car is cheaper than petrol today. Be careful about verbing in very formal writings. Some people find verbing annoying. 15 Think and say 16 Heating Cooling Water heating Appliances (fridge, washing machine, dryer etc. ) Lighting Electronics (computer, TV, etc.) Annual electricity usage for an average family How does your family use electricity? Is there anything we can do to save electricity? What can we learn from the pie chart? How does your family use electricity? Is there anything we can do to save electricity at home? 16 Read a dialogue and complete the tasks. Write a passage about what you’ve learned from the reading material. Read the pie chart. Think about how your family uses electricity. Is there anything we can do to save electricity? Write down your ideas. 17 Homework Homework com.apple.VoiceMemos (iOS 11.0.3) 缪涵滢录音 com.apple.VoiceMemos (iOS 13.3.1) com.apple.VoiceMemos (iOS 11.2.6) com.apple.VoiceMemos (iOS 11.2.6) $$