(
课件网) 初中英语沪教版八年级上册 Unit 4 Inventions Inventions Cross-curricular connection 1 理解与蒸汽机的发明和发展有关的词汇和短语。 2 理解文章内容，通过时间轴梳理文本信息，复述蒸汽机的发展历程。 3 理解蒸汽机技术进步与工业革命发展之间的关系，体会发明创造对社会发展的深远意义。 Learning objectives 重点 重点 Observe and answer What do you see in the picture There’s a train. The train is making lots of dark smoke. Observe and answer Do you know what kind of train it is It looks like an old-fashioned steam train. It was powered by the steam engine. A world-changing invention! Let’s explore more! Look and learn Look at the pictures and learn the new words. [ p st n]活塞 [ s l nd (r)] （发动机的）气缸 [ b l (r)] 锅炉，汽锅 Look and learn Look at the pictures and learn the new words. cog [k ɡ] 齿轮 locomotive [ l k m t v] 机车;火车头 Look and learn Look at the pictures and learn the new words. horsepower [ h spa (r)] 马力 Read and match (1) piston A. a container that heats water to make steam (2) cylinder B. a metal plate that moves back and forth because of steam (3) boiler C. a tube where steam pushes the piston (4) steam engine D. a wheel with teeth to help machines move (5) cog E. a part of a train that pulls the train (6) locomotive F. an engine that turns heat energy into motion energy B C A F D E Read and complete Look at the title, subtitles and the pictures. Predict what the passage is mainly about. Then try to complete the blanks. development Thomas Newcomen’s of the steam engine. The passage is mainly about the It talks about invention and how improved it. James Watt Read and choose C What is the literary genre(文体) of this passage A. Argumentation（议论文） B. Narrative（记叙文） C. Expository（说明文） Read and answer 1. Who invented the first steam engine 2. What did James Watt do 3. How did the steam engine help the Industrial Revolution Thomas Newcomen. He simply improved on Thomas Newcomen’s original design. James Watt added wheels and cogs to the steam engine, which made the steam engine useful in train locomotives and steamboats. In this way, his invention played a huge role in the Industrial Revolution. Read and complete (4)_____ improved on the original design. His improvement increased the (5)_____ of the engine. This new steam engine could (6)_____, and it could also (7)_____. (1)_____ invented the first steam engine in (2)_____. It helped people (3)_____ _____. (8)_____ were added to the steam engine by (9)_____ and it was useful in (10)_____ and (11)_____. The invention played a huge role in (12)_____. Thomas Newcomen 1712 mine for metals and coal at greater depths James Watt power power trains and ships be used in factories Wheels and cogs Watt steamboats train locomotives the Industrial Revolution Invention Improvement Significance Complete a timeline to describe the invention and improvement process of the steam engine. Retell the passage James Watt, improved, Ne ... ...
