(
课件网) Unit 4 Inventions Reading II 02 03 Learning objectives By the end of this lesson, I can: 01 analyze the information organization and language expression methods of the passage summarize the characteristics of exposition(说明文) gain an in - depth understanding of the importance and application of the wheel Lead- in Before watching, try to answer：What’s the video mainly about Please answer the following questions What’s the type of the video Did the text try to entertain(使...娱乐)us or not √ It’s not like a story. Lead- in Did it give us facts and explanations A. It tells facts. Have you read or watch something like this before — in English or in Chinese B. It gives explanations. √ Science exposition — 科普类说明文 Lead- in Decide which ones are from a science exposition (科普类说明文), and which are from other types of writing A B The human brain contains about 86 billion nerve cells called neurons. In my opinion, robots should not replace human teachers. √ Because A is a fact about the human body, using scientific term "neurons". While B is a personal opinion. Lead- in Decide which ones are from a science exposition (科普类说明文), and which are from other types of writing A B "What time does the experiment start " asked Tom. Researchers have discovered a new species of frog in the Amazon rainforest. √ Because B reports a scientific discovery in a neutral, factual tone. While A is a question in conversation. Lead- in Summarize the characteristics of the Science exposition — 科普类说明文 Purpose: To inform Language: Clear, factual, objective Features: Headings, definitions, examples Examples in real life: Science websites, museum signs Lead- in Close reading Can you tell us which kind of our text belongs to √ A.Science exposition B.Poem C.Public speech D.Narrative(记叙文) Clear, factual, objective Example giving Please find them out in the passage Let’s be a fact hunter!!!! Features Science exposition example Purpose Tone Key words Any conversations Explain facts Objective For example;because No Close reading Let’s be a fact hunter and give the report Take a look about 3D printers and give it a brief introduction Close reading Prepare your speech with your group member You can begin your speech like: The wheel not only changed the way humans move, but it also allowed us to build all types of amazing machines. For example, the 3D printer. It looks like.. It’s made of.. It’s now changing our lives in different fields.. ... Without doubt, the wheel is one of the most important inventions of all the time. Close reading Checklist about your speech Features Does your speech include... Purpose Is it based on explaining facts Tone Is it objective enough Key words Do you give some examples Any conversations Are there any conversations √ √ √ √ Close reading Language writing skills Features of Expository Writing A. Purpose B. Language features C. Stucture D. Useful sentenc ... ...
