外研版(2019)必修三 Unit 3 The world of science—Using language(教案)

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名称 外研版(2019)必修三 Unit 3 The world of science—Using language(教案)
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资源类型 教案
版本资源 外研版(2019)
科目 英语
更新时间 2022-08-23 10:05:37

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Unit 3 The world of science
Using language
【教材分析】
In this period, students will be guided to master the usage and rules of the present perfect passive. Two contextual exercises including pictures of reporting loss to the police and introduction of 3D printing technology will help students master the grammar better.
Students will also learn to build up vocabulary describing careers in science. In word learning, students can follow the rules of word building and meanwhile discuss what career interests them most. In the listening part, understanding invention stories from listening will strengthen students’ listening ability.
Through the comprehensive training of skills in real context, students can deepen the understanding of this unit theme, improve the ability to use integrated speech.
【教学目标】
1. Guide students to master the usage and rules of the present perfect passive.
2. Help students accumulate English vocabulary describing careers in science.
3. Strengthen students’ listening ability to understand invention stories and enhance their speaking ability.
4. Deepen the understanding of this unit theme, improve the ability to use integrated speech through comprehensive training of skills.
【教学重难点】
1. Help students summarize the rules of the present perfect passive and correctly use it in different situations.
2. Improve students’ listening ability to understand invention stories.
3. Enhance students’ speaking ability by telling the story behind an invention.
【教学过程】
Step 1 Grammar learning: Present perfect passive
1. Compare the following pairs of sentences and identify the basic sentence patterns of the present perfect and the present perfect passive.
a I guess someone has asked you about the title of your book before.
b I guess you have been asked about the title of your book before.
2. Review the definition of the present perfect tense and master the active and passive structures of the present perfect tense.
Notes:
Present perfect active voice Subject+ have/has done+...
Present perfect passive voice Subject+ have/has been done+...
Step 2 Practice
1. Rewrite the underlined sentences in the passage using the present perfect passive.
① It has already affected many things in our lives.
② Some restaurants in London have served 3D-printed hamburgers to customers.
③ The most significant success that people have achieved to date is in medicine.
④ They have made human body parts, including a beating heart, with 3D printing technology.
⑤ People have given a new 3D-printed shell to a turtle injured in a forest fire!
2. Look at the pictures on Page 29 and describe what has happened to the police.
In the morning, when I went into my lab, I felt extremely surprised. What a mess it is now! My lab __________ (break) into. The only robot at the door __________ (push) down into pieces. The door of the cupboard was open. Some chemical apparatuses, such as test glasses and tubes __________ (knock) over. In addition, some paper on the desk is in disorder.
Step 3 Vocabulary
1. Have students look at the pictures on Page 30 and learn about words describing careers in science.
2. Lead students to learn about the rules of word-building with the help of “Learning to learn”. Pay attention to suffix such as -er/ -ist/ -ian.
3. Fill in the blanks in Activity 5 on Page 30.
4. Work in pairs. Talk about some careers in science which interests you most.
Step 4 Before listening
1. Lead students to read “Did You Know ” so that they show a great interest in invention stories.
2. Have student look at the pictures on Page 31 and predict the content of listening material.
Step 5 While listening
1. Listen to the audio for the first time and number the pictures in the correct order.
2. Listen again and check the answer with the class.
3. Guide students to get more detailed information of the listening material after finishing Activity 7.
4. Focus on how the speakers describe the story behind an invention and take notes of key expressions to complete the exercise in Activity 8.
Step 6 Post-listening
Work in pairs. Encourage students to expand their thinking and create their own situations in which two students have a conversation about an invention story.
Step 7 Language appreciation
1. It is not just humans who are benefiting in Brazil, people have given a new 3D-printed shell to a turtle injured in a forest fire!
[句式分析]“It is not just humans who are benefiting”本句为“强调句”,其基本结构为“It’s + 被强调部分+ that+...”。
注意强调句中的连接词一般只用who(指人)或that(可指物,也可指人)。若被强调的是状语,也只能用that,而不能用when或者where,而且连接词不能省略。
“injured in a forest fire”为过去分词短语作“后置定语”,修饰“a turtle”。
[尝试翻译]受益的不只是人类——在巴西,人们给一只在森林火灾中受伤的海龟一个新的3D打印外壳!
2. His work on Chen’s Theorem made an important advance towards proving Goldbach’s Conjecture, the greatest unsolved problem in number theory.
[句式分析]“make an important advance towards...”意为“取得重要进展”,“the greatest unsolved problem in number theory”作“同位语”解释“Goldbach’s Conjecture”。“unsolved”意为“未解决的”。
[尝试翻译]陈氏(陈景润)定理的研究在证明哥德巴赫猜想方面取得了重要进展,哥德巴赫猜想是数论中最重要的未解问题。
Step 8 Homework
1. Review new words and phrases learned in this period.
2. Consolidate the grammar item learned in this period.
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