Unit 4 Epic engineering：Writing课件-2024-2025学年七年级沪外教版2024英语下册

The biggest chAllenge was permafrost, a type of frozen ground that remains at or below zero degree integrated for at least two years. Most of the railway is built on IT. The ground can break easily if IT gets too warm, though the engineers were not familiar with this problem, they invented ways to solve IT. They built walls to block the sun. This could keep the ground colder and stronger. In some places, the railway is built above ground like long bridges. Engineers invented box is a way to move both open downhill. To take a boat of help for the x, we need to drain the wall touch of the lock so that we can open the case and let the boat in. To do this, we open some small doors in the gates. These are called puddles. What's the coaches in the lock? We can close the gates and open the paddles at the top end of the lock. The grand puddles will let water back into the lock for an underground. Once the lock is full again, the top dates can be opened and the boat can continue its journey. The shanghai seat tank railway connect sea noon and lsa. The capital cities of shanghai and sea IT ended. He tones no railway history and set a new record for the world's highest railway. How did engineers deal with the chAllenges? Lets find out an epic road. The railway itself is a world wonder. Work began in one thousand nine hundred and fifty eight, and IT took over fifty years to complete. Although IT was a difficult task, chinese engineers and workers did their best to overcome the chAllenges. The biggest chAllenge was permafrost, a type of frozen ground that remains at or below zero degree centre grade for at least two years. Most of the railway is built on IT. The ground can break easily if IT gets too warm. Though the engineers were not familiar with this problem, they invented ways to solve IT. They built walls to block the sun. This could keep the ground colder and stronger. In some places, the railway is built above ground like long bridges. Another chAllenge was to protect the plants, rivers and animals. Along the line, the shanghai c. Tung ra passes through ki and chung places with many wild animals. The engineers built twenty five special passages just for animals. Now the animals can cross the railway without danger. Also, the air in the high mountains is thin and the oxygen level is low. Passengers may feel sick. Engineers design trains that can give passengers more oxygen. Although there were epic chAllenges chinese engineers made history today, the chenghai c tank railway travels for one thousand nine hundred and fifty six kilometers across Green rivers, along snowy mountains, by blue lakes and through amazing desserts. IT is an epic road. Another chAllenge was to protect the plants, rivers and animals along the line. The shanghai I sea tang railway passes through kci and chung, places with many wild animals. The engineers built twenty five special passages just for animals. Now the animals can cross the railway without danger. Also, the air in the high mountains is thin and the oxygen level is low. Passengers may feel sick. Engineers design trains that can give passengers more oxygen. Describing engineering works and chAllenges one. a railway is a road for trains to travel on. Two, a bridge is a building over a river or road. People or traffic can cross on IT. Three, a dam is a special wall across a river to stop the water. For a thrill ride is like a train that runs with lots of ups and downs in a park. Five canal is a long water passage created by people for boats to travel along. The railway itself is a world wonder. Work began in one thousand nine hundred and fifty eight, and IT took over fifty years to complete. Although IT was a difficult task, chinese engineers and workers did their best to overcome the chAllenges. 英语 电子教案 七年级 下册 Objectives & Tasks Getting ready Reading and critical thinking Grammaring Listening, viewing and speaking Writing Project Self-assessment Key words & Cool things to know Contents Epic engineering 4 Unit Objectives & Tasks Getting ready Reading and critical thinking Grammaring Listening, viewing and speaking Writing Project Self-assessment Key words & Cool things to know Contents Objectives & Tasks Getting ready Reading and critical thinking Grammaring Listening, viewing and speaking Writing Project Self-assessment Key words & Cool things to know Contents can describe engineering works, the challenges of building them, and the solutions Objectives learn some words about engineering works and ways to overcome challenges practise sentence stress use although and though Tasks can get a deeper understanding of what epic engineering is read an article about the Qinghai–Xizang Railway listen to a radio programme about the Grand Canal study an example of clever engineering Objectives & Tasks can communicate on engineering works and ways to overcome challenges Objectives talk about the Grand Canal make a building plan based on a map Tasks can present an example of epic engineering by using an outline write a short description of Dujiangyan Objectives & Tasks ① ② ③ ④ The Qinghai–Xizang Railway is a world wonder. It took over 50 years to complete. Although it was difficult, Chinese engineers did their best to overcome the challenges. _______. Engineers built walls to block the sun. They also built some parts of the railway above ground. _______. To solve the problem, the engineers built 25 special passages for them. Now the animals can cross the railway without danger. The Qinghai–Xizang Railway ends Xizang’s no-railway history. It is an epic road. Write a short description of Dujiangyan in Chengdu, a great example of epic engineering still in use today. A description of an engineering wonder Study a model. Read and complete the two tasks. Subskill: Using an outline Step 1 Step 2 Step 3 Step 4 Step 5 E 1 Choose the correct topic sentences for Paragraphs 2 and 3. a b c d e One big problem was the cold weather. The biggest challenge was permafrost. Animals are in danger. Another challenge was to protect the animals. Permafrost was a kind of frozen ground. ① ② ③ ④ The Qinghai–Xizang Railway is a world wonder. It took over 50 years to complete. Although it was difficult, Chinese engineers did their best to overcome the challenges. _______________________________. Engineers built walls to block the sun. They also built some parts of the railway above ground. _____________________________________. To solve the problem, the engineers built 25 special passages for them. Now the animals can cross the railway without danger. The Qinghai–Xizang Railway ends Xizang’s no-railway history. It is an epic road. The biggest challenge was permafrost Another challenge was to protect the animals Step 1 Step 2 Step 3 Step 4 Step 5 E 2 Complete the outline of the model with the expressions in the box. Introduction Topic sentence Supporting details Conclusion 1 ___________ 2 ________________ 3 ________________ 4 ________________ 5 ________________ 6 ___________ Topic sentence Introduction Topic sentence Supporting details Supporting details Conclusion Step 1 Step 2 Step 3 Step 4 Step 5 E Think. Study the table and pictures about Dujiangyan. Write proper topic sentences and supporting details. Dujiangyan, an engineering wonder Basic information Challenges and solutions Importance in Chengdu, China had a history of over 2,000 years Li Bing designed it three parts: Yuzui, Feishayan, and Baopingkou Floods in rainy seasons: • use Yuzui and Feishayan / keep water from entering the inner river • clear sands Not enough water in dry seasons: • use Yuzui and Feishayan / let water in • use Baopingkou / guide water into dry farms ... • improve the life of local people • show the wisdom of Chinese people Step 1 Step 2 Step 3 Step 4 Step 5 E Topic sentence 1: __________________________________ ______________. Supporting details: _________________________________ _________________________________________________ _________________________________________________ ________________________. One of the biggest challenges is floods in rainy seasons People built Yuzui, a thick wall, and a smaller channel called Feishayan. They keep water from entering the inner river. People also take care of them by clearing the sand every year Step 1 Step 2 Step 3 Step 4 Step 5 E Topic sentence 2: __________________________________ _____________________. Supporting details: _________________________________ _________________________________________________ ________________________________________________. Another challenge is not enough water for farms in dry seasons During dry seasons, people use Yuzui and Feishayan to let water into the inner river. People also built Baopingkou, a channel, to guide water into dry farms Step 1 Step 2 Step 3 Step 4 Step 5 E Write. Write about Dujiangyan with the given information, using the model to help you. Step 1 Step 2 Step 3 Step 4 Step 5 E Check. Read your writing and answer the questions. Did you use an outline? Did you write effective topic sentences and give supporting details? 1 2 Step 1 Step 2 Step 3 Step 4 Step 5 E Peer review. Exchange your writing with your classmate. Answer the questions. Does he or she write effective topic sentences with supporting details? What changes would you like to make to your writing? 1 2 Step 1 Step 2 Step 3 Step 4 Step 5 E How can we overcome big challenges of engineering? Task: Make a building plan. Your school has organized an event called “Little Planners, Better Life”. You are going to create an engineering project based on the map. You have to choose a suitable site, identify possible challenges, provide solutions, and prepare a presentation. There are two models. F Step 1 Step 2 Step 3 Step 4 Step 5 Task Step 6 Little Planners, Better Life 1 power station 2 railway station 3 4 5 6 7 F Step 1 Step 2 Step 3 Step 4 Step 5 Task Step 6 We’d like to build a railway station at Site 2. Although the site is far away from the city centre, there are houses and office buildings nearby. So we have to deal with the problem of noise pollution. We plan to plant trees and build sound-blocking walls to reduce train noise. We plan to build a power station at Site 1. The place is at the upper part of the river and is not packed with many buildings. So we can use water and wind to produce electricity. Studying the weather report will help us decide the location of the power station! F Step 1 Step 2 Step 3 Step 4 Step 5 Task Step 6 Work in groups. Study the map and decide what kind of engineering project you want to build. Search the internet to gather information about the suitable location, possible challenges and solutions. We’d like to build _________ at Site __ because _______________ ________________________________________. Possible challenges Possible challenges a pet park 3 the area is covered with grass and is close to several housing estates We need to keep the park clean. We need to make the park a pleasant and safe place for pets and their owners. We will set up waste stations and ask people to obey the rules when walking their dogs. We’ll also provide toys for pets to play with on the grass. F Step 1 Step 2 Step 3 Step 4 Step 5 Task Step 6 Exchange and analyse the information you have collected within the group. F Step 1 Step 2 Step 3 Step 4 Step 5 Task Step 6 Discuss the possible challenges and solutions to reach an agreement. TEEN SKILL F Step 1 Step 2 Step 3 Step 4 Step 5 Task Step 6 Leaders give tasks to each group member. Each person will be responsible for a specific part of the presentation. F Step 1 Step 2 Step 3 Step 4 Step 5 Task Step 6 Present your project to the class. F Step 1 Step 2 Step 3 Step 4 Step 5 Task Step 6 Listen to the presentation of each group and do peer checks. Their presentation includes the challenges and possible solutions. Their presentation is clear and attractive. Checklist F Step 1 Step 2 Step 3 Step 4 Step 6 Task Step 5 How well I can do these A. identify the text type, the topic, challenges and solutions in different texts B. communicate on engineering works by using words about overcoming challenges and although or though C. describe an engineering wonder by using an outline with effective topic sentences and supporting details D. understand the history of railways E. create tips for a trip on the Qinghai–Xizang Railway by analysing the challenges and possible solutions F. organise information in the form of tables or mind maps Self-assessment Describing engineering works amazing connect lift material passage railway Dealing with challenges block the sun control the rivers energy invent ways oxygen levels protect the environment reduce noise terrible weather use tools Add more! What other useful words or cool things have you learned? Add them to the lists. Key words to use Cool things to know canal The word “canal” comes from the old French word chanel, which means “channel”. Add more! What other useful words or cool things have you learned? Add them to the lists. Key words to use Cool things to know 感谢观看 $$Great projects in china. Do you know about the grand canal in china? It's the longest and most famous canal in the world. People built IT a long time ago to help move things like rice and tea more easily. Building the grand canal was a huge project. First, people had to plan where IT should go by studying the land. Then they used special tools to dig big holes in the ground. Next, they built dams to control the rivers and bring water into the canal. To help boats go up and down. They made special lifts called locks and gates. They also built strong walls with stones and wood. Many people work together to build the grand. Is building our ways hard? Yes, though it's a big chAllenge, it's fun to invent ways to help connect people in places. cool. How do trains cross mountains and rivers? We usually build bridges or tunnels. We also add wrongs to make the ground strong enough. It's not an easy go at all. One, listen and pay attention to the stressed words, mark stress, as in the following example example, building a safe track is a big chAllenge. One engineers have built passages for animals to cross. Two, it's important to protect the environment and animals. Three engineers invent ways and work hard to make these amazing wonders. Four brave workers face many chAllenges, such as terrible weather and heavy stones. Engineers invented box is a way to move both open downhill. To take a boat of help for the x, we need to drain the wall touch of the lock so that we can open the case and let the boat in. To do this, we open some small doors in the gates. These are called puddles. What's the box in the lock? We can close the gates and open the paddles at the top end of the lock. The grand puddles will let water back into the lock for an underground. Once the lock is full again, the top dates can be opened and the boat can continue its journey. Although there were epic chAllenges chinese engineers made history today, the chenghai c tank railway travels for one thousand nine hundred and fifty six kilometers across Green rivers, along snowy mountains, by blue lakes and through amazing deserts. IT is an epic road.