(
课件网) 英语 电子教案 七年级 下册 Epic engineering 4 Unit 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 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 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 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 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 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 ente ... ...
