外研版（2019） 选择性必修第一册 Unit5 Revealing nature Starting out and Understanding ideas 名师教学设计
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| 名称 | 外研版（2019） 选择性必修第一册 Unit5 Revealing nature Starting out and Understanding ideas 名师教学设计 |  | |
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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 | 2023-03-02 18:03:57 | ||
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Unit 5 Starting out & Understanding ideas 名师教学设计
课时内容：
本课时包括 Starting out和 Understanding ideas两部分。
Starting out是导入部分，包括阅读杂志页回答问题和观看视频回答问题两个环节。通过观察杂志中提到的现如今罕见的三种动物，将学生的思维拉到关于动物的思考，贴近单元话题。通过观看视频，了解不同植物种子的传播途径，进一步了解神奇的大自然。
Understanding ideas部分讲述了英国地质学家和博物学家达尔文的发现之旅。达尔文乘坐贝格尔号进行了历时5年的环球航行，对动植物和地质结构等进行了大量的观察和采集。1859年，达尔文出版了《物种起源》，提出了生物进化论学说。除了生物学外，达尔文的理论对人类学、心理学、哲学的发展都有不容忽视的影响。
课时目标：
1.认知并灵活运用本课时的重点单词 distant、disgrace、evolve、suspect、evolution、generate和短语answer the call，be a disgrace、date back to、of all time、be fascinated by、be crowded with、come to exist、be similar to、adapt to、a variety of、according to、evolve into、be regarded as等
2.通过速读、精读等方式，引导学生由浅入深，逐层推进，加深对文章的理解，并掌握不同的阅读技巧和方法。通过对所设置题目的解答，让学生学会根据关键词提取重要信息，理清文章线索，并学会深层次分析问题，进行语言加工，提高归纳、概括、推理判断的能力。
3.通过阅读文章，感受达尔文探索科学、追求真理之路的艰辛，学习他不畏困难、大胆质疑、勇于探索的精神。
重点难点：
重点：
学习、掌握本课的重点单词 distant、disgrace、evolve、suspect、evolution、generate和短语 answer the call、be a disgrace、date back to、of all time、be fascinated by、be crowded with、come to exist、be similar to、adapt to、a variety of、according to、evolve into、be regarded as等，并能在具体语境中灵活运用。
难点：
1.通过解决阅读阶段所设置的题目，学会分析问题、解决问题，理清文章脉络，提高阅读水平。
2.通过阅读文章，学会善于观察，认真思考，激发探索自然的兴趣。
教学准备：
教师准备：
1.准备好该部分内容的视频材料、PPT以及音频素材。
2.设计好阅读理解题目，利用不同方式拓展语言点，激发学生兴趣。
学生准备：
1.在网上搜索了解科莫多巨蜥、鸭嘴兽、鹦鹉螺的相关信息，并查找不同植物种子的传播途径，更进一步了解大自然的奥秘。
2.了解达尔文的生平事迹及其所取得的成就。
3.预习 Starting out和 Understanding ideas两部分的内容，通过查字典等方式提前解决词汇问题。
教学过程：
Step I Starting out
1. Look at the page from a science magazine and answer the questions.
·What do you know about these animals What makes them special
·what other similar animals do you know about
Share your knowledge with the class.
2. Watch the video and answer the questions.
·How can seeds travel How can this benefit plants
·Can you think of another example of seeds travelling
Share it with the class.
Suggested answers： ·Seeds are usually carried by the wind，water，and animals. Plants can have a better chance at life. ·（略）.
【设计意图】通过看一页科学杂志和视频，让学生初步了解本单元内容，为接下来的学习做铺垫。
Step II Reading
1. Pre-reading.
(1) Look at the evolutionary tree and answer the questions.
·What species do you recognise in the picture
·What factors can cause the process of evolution
Suggested answers： ·Paramecium，earthworm，snail，crab，fish，tortoise，bird，horse，human，frog，algae，moss，fern... ·（略）
（2）Read the passage and talk about your understanding of the title.
【设计意图】通过观察进化树，引发学生对影响进化因素的思考。通过观察文章标题，预测文章内容，为后面文章的学习奠定基础。
2. Fast reading.
Read the passage quickly and finish the following exercises.
(1) Match the parts with the main ideas.
①Part1(Paras.1~2)_________________________________________________
②Part2(Paras.3~5)_________________________________________________
③Part3(Para.6)____________________________________________________
④Part4(Para.7)____________________________________________________
A. The remark about On the Origin of Species. B. Darwin’s new theory about evolution. C. The new discoveries during the journey. D. Darwin answered the call and began his journey.
Suggested answers： ①D ②C ③B ④A
(2) Choose the best answers.
①Why didn’t the captain of the Beagle think Darwin was the best choice A. Because Darwin wasn’t admitted to a university. B. Because Darwin was dismissed from medical school. C. Because Darwin brought shame to himself and his family. D. Because Darwin had not enough interest in visiting distant countries. ②What did people think about the species at that time A. All species evolved from the same species. B. All species came into being in the meantime. C. Some species appeared earlier than the others. D. Some species improved a lot since its appearance. ③What was Darwin’s new theory then A. Environment played an important role. B Species evolved with the changing environment. C. Different species lived in different environment. D. The more complicated the species were, the more time it took. ④ How did people feel Darwin’s theory A. Astonished. B. Excited. C. Satisfied. D. Interested.
Suggested answers： ①B ②B ③B ④A
【设计意图】通过选取段落大意和选择题环节，进一步锻炼学生回扣原文，提取关键信息的能力。
3.Careful reading.
（1）Language points.
Master the words and phrases：
distant，disgrace，evolve，suspect，evolution，generate，answer the call，be a disgrace，date back to，of all time，be fascinated by，be crowded with，come to exist，be similar to，adapt to，a variety of，according to，evolve into，be regarded as
【备注】词汇知识点讲解详见第二教案“新知探究”。
（2）Read the passage again and retell it.
【设计意图】通过设置该活动，进一步归纳、概括文章，理清文章脉络，有助于学生更好地加深对文章的理解。同时，在读懂语篇的基础上，将英语语法、句法、词汇的学习融合在一起，更科学地反映学生的口头表达能力和英语综合素养。
4.Post-reading.
(1) Do Activity 3 on Page 52.
Choose the main idea of the passage and give your reasons.
①Darwin’s interest in various living things made him a great naturalist.
②Darwin’s journey on the Beagle inspired his Theory of Evolution.
③Darwin went on a journey to confirm his theory that humans had evolved over time.
Suggested answers： ②
【设计意图】以选择题的形式呈现，让学生选出文章的主旨大意，锻炼学生获取关键信息、归纳问题的能力。
（2）Do Activity 4 on Page 52.
Number the puzzle pieces in order. Organise information from the passage and complete them.
Suggested answers： ON HIS JOURNEY various living things in their natural environments and samples of the plants and animals he had collected; very similar to each other GENERATE IDEAS c come to exist; Maybe animals evolved as they adapted to their changing environments LOOK FOR MORE EVIDENCE that there was a difference between the finches on each of the islands; had evolved according to what food was available on that particular island DEVELOP IDEAS had evolved from a common ancestor, which had arrived on the le islands a long time before; slowly evolved into many new species PROPOSE A THEORY had evolved from lower forms of life
【设计意图】通过该活动，将达尔文得出进化论的过程形象地呈现出来，有助于学生理清文章主线、获取关键信息。通过原文定位法，找到问题的答案。本题打乱了顺序，要求学生重新整理排列，锻炼学生的逻辑思维能力。
（3）Divide students into small groups and ask them to discuss why Darwin did not publish his Theory of Evolution until 1859，about twenty years after his discovery.
Step Ⅲ Summing up
1.总结本节课的重点词汇 distant、disgrace、evolve、suspect、evolution、generate、answer the call、be a disgrace、date back to、of all time、be fascinated by、be crowded with、come to exist、be similar to、adapt to、a variety of、according to、evolve into、be regarded as和句型，采用表格、思维导图等形式更清晰地了解它们的用法，形成知识脉络。
2.让学生用简短的英语简述达尔文的发现之旅，进一步锻炼学生概括、归纳的能力。
3.通过对达尔文发现生物进化论的了解，学习他细致入微的观察、专心致志的思考、孜孜不倦追求真理的精神。
Step IV Homework
1. Sum up what you learned in class and take notes.
2. Preview the next period.
板书设计
Unit 5 Revealing nature Period I Starting out & Understanding ideas I. Starting out 1. Look at the page from a science magazine and answer the questions. 2. Watch the video and answer the questions. Ⅱ. Reading 1. Pre-reading. (1) Look at the evolutionary tree and answer the questions. (2) Read the passage and talk about your understanding of the title. 2. Fast reading. Read the passage quickly and finish the following exercises. 3. Careful reading. (1) Language points. (2) Read the passage again and retell it. 4. Post-reading. (1) Do Activity 3 on Page 52. (2) Do Activity 4 on Page 52. (3) Discuss. Ⅲ. Summing up Ⅳ. Homework
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课时内容：
本课时包括 Starting out和 Understanding ideas两部分。
Starting out是导入部分，包括阅读杂志页回答问题和观看视频回答问题两个环节。通过观察杂志中提到的现如今罕见的三种动物，将学生的思维拉到关于动物的思考，贴近单元话题。通过观看视频，了解不同植物种子的传播途径，进一步了解神奇的大自然。
Understanding ideas部分讲述了英国地质学家和博物学家达尔文的发现之旅。达尔文乘坐贝格尔号进行了历时5年的环球航行，对动植物和地质结构等进行了大量的观察和采集。1859年，达尔文出版了《物种起源》，提出了生物进化论学说。除了生物学外，达尔文的理论对人类学、心理学、哲学的发展都有不容忽视的影响。
课时目标：
1.认知并灵活运用本课时的重点单词 distant、disgrace、evolve、suspect、evolution、generate和短语answer the call，be a disgrace、date back to、of all time、be fascinated by、be crowded with、come to exist、be similar to、adapt to、a variety of、according to、evolve into、be regarded as等
2.通过速读、精读等方式，引导学生由浅入深，逐层推进，加深对文章的理解，并掌握不同的阅读技巧和方法。通过对所设置题目的解答，让学生学会根据关键词提取重要信息，理清文章线索，并学会深层次分析问题，进行语言加工，提高归纳、概括、推理判断的能力。
3.通过阅读文章，感受达尔文探索科学、追求真理之路的艰辛，学习他不畏困难、大胆质疑、勇于探索的精神。
重点难点：
重点：
学习、掌握本课的重点单词 distant、disgrace、evolve、suspect、evolution、generate和短语 answer the call、be a disgrace、date back to、of all time、be fascinated by、be crowded with、come to exist、be similar to、adapt to、a variety of、according to、evolve into、be regarded as等，并能在具体语境中灵活运用。
难点：
1.通过解决阅读阶段所设置的题目，学会分析问题、解决问题，理清文章脉络，提高阅读水平。
2.通过阅读文章，学会善于观察，认真思考，激发探索自然的兴趣。
教学准备：
教师准备：
1.准备好该部分内容的视频材料、PPT以及音频素材。
2.设计好阅读理解题目，利用不同方式拓展语言点，激发学生兴趣。
学生准备：
1.在网上搜索了解科莫多巨蜥、鸭嘴兽、鹦鹉螺的相关信息，并查找不同植物种子的传播途径，更进一步了解大自然的奥秘。
2.了解达尔文的生平事迹及其所取得的成就。
3.预习 Starting out和 Understanding ideas两部分的内容，通过查字典等方式提前解决词汇问题。
教学过程：
Step I Starting out
1. Look at the page from a science magazine and answer the questions.
·What do you know about these animals What makes them special
·what other similar animals do you know about
Share your knowledge with the class.
2. Watch the video and answer the questions.
·How can seeds travel How can this benefit plants
·Can you think of another example of seeds travelling
Share it with the class.
Suggested answers： ·Seeds are usually carried by the wind，water，and animals. Plants can have a better chance at life. ·（略）.
【设计意图】通过看一页科学杂志和视频，让学生初步了解本单元内容，为接下来的学习做铺垫。
Step II Reading
1. Pre-reading.
(1) Look at the evolutionary tree and answer the questions.
·What species do you recognise in the picture
·What factors can cause the process of evolution
Suggested answers： ·Paramecium，earthworm，snail，crab，fish，tortoise，bird，horse，human，frog，algae，moss，fern... ·（略）
（2）Read the passage and talk about your understanding of the title.
【设计意图】通过观察进化树，引发学生对影响进化因素的思考。通过观察文章标题，预测文章内容，为后面文章的学习奠定基础。
2. Fast reading.
Read the passage quickly and finish the following exercises.
(1) Match the parts with the main ideas.
①Part1(Paras.1~2)_________________________________________________
②Part2(Paras.3~5)_________________________________________________
③Part3(Para.6)____________________________________________________
④Part4(Para.7)____________________________________________________
A. The remark about On the Origin of Species. B. Darwin’s new theory about evolution. C. The new discoveries during the journey. D. Darwin answered the call and began his journey.
Suggested answers： ①D ②C ③B ④A
(2) Choose the best answers.
①Why didn’t the captain of the Beagle think Darwin was the best choice A. Because Darwin wasn’t admitted to a university. B. Because Darwin was dismissed from medical school. C. Because Darwin brought shame to himself and his family. D. Because Darwin had not enough interest in visiting distant countries. ②What did people think about the species at that time A. All species evolved from the same species. B. All species came into being in the meantime. C. Some species appeared earlier than the others. D. Some species improved a lot since its appearance. ③What was Darwin’s new theory then A. Environment played an important role. B Species evolved with the changing environment. C. Different species lived in different environment. D. The more complicated the species were, the more time it took. ④ How did people feel Darwin’s theory A. Astonished. B. Excited. C. Satisfied. D. Interested.
Suggested answers： ①B ②B ③B ④A
【设计意图】通过选取段落大意和选择题环节，进一步锻炼学生回扣原文，提取关键信息的能力。
3.Careful reading.
（1）Language points.
Master the words and phrases：
distant，disgrace，evolve，suspect，evolution，generate，answer the call，be a disgrace，date back to，of all time，be fascinated by，be crowded with，come to exist，be similar to，adapt to，a variety of，according to，evolve into，be regarded as
【备注】词汇知识点讲解详见第二教案“新知探究”。
（2）Read the passage again and retell it.
【设计意图】通过设置该活动，进一步归纳、概括文章，理清文章脉络，有助于学生更好地加深对文章的理解。同时，在读懂语篇的基础上，将英语语法、句法、词汇的学习融合在一起，更科学地反映学生的口头表达能力和英语综合素养。
4.Post-reading.
(1) Do Activity 3 on Page 52.
Choose the main idea of the passage and give your reasons.
①Darwin’s interest in various living things made him a great naturalist.
②Darwin’s journey on the Beagle inspired his Theory of Evolution.
③Darwin went on a journey to confirm his theory that humans had evolved over time.
Suggested answers： ②
【设计意图】以选择题的形式呈现，让学生选出文章的主旨大意，锻炼学生获取关键信息、归纳问题的能力。
（2）Do Activity 4 on Page 52.
Number the puzzle pieces in order. Organise information from the passage and complete them.
Suggested answers： ON HIS JOURNEY various living things in their natural environments and samples of the plants and animals he had collected; very similar to each other GENERATE IDEAS c come to exist; Maybe animals evolved as they adapted to their changing environments LOOK FOR MORE EVIDENCE that there was a difference between the finches on each of the islands; had evolved according to what food was available on that particular island DEVELOP IDEAS had evolved from a common ancestor, which had arrived on the le islands a long time before; slowly evolved into many new species PROPOSE A THEORY had evolved from lower forms of life
【设计意图】通过该活动，将达尔文得出进化论的过程形象地呈现出来，有助于学生理清文章主线、获取关键信息。通过原文定位法，找到问题的答案。本题打乱了顺序，要求学生重新整理排列，锻炼学生的逻辑思维能力。
（3）Divide students into small groups and ask them to discuss why Darwin did not publish his Theory of Evolution until 1859，about twenty years after his discovery.
Step Ⅲ Summing up
1.总结本节课的重点词汇 distant、disgrace、evolve、suspect、evolution、generate、answer the call、be a disgrace、date back to、of all time、be fascinated by、be crowded with、come to exist、be similar to、adapt to、a variety of、according to、evolve into、be regarded as和句型，采用表格、思维导图等形式更清晰地了解它们的用法，形成知识脉络。
2.让学生用简短的英语简述达尔文的发现之旅，进一步锻炼学生概括、归纳的能力。
3.通过对达尔文发现生物进化论的了解，学习他细致入微的观察、专心致志的思考、孜孜不倦追求真理的精神。
Step IV Homework
1. Sum up what you learned in class and take notes.
2. Preview the next period.
板书设计
Unit 5 Revealing nature Period I Starting out & Understanding ideas I. Starting out 1. Look at the page from a science magazine and answer the questions. 2. Watch the video and answer the questions. Ⅱ. Reading 1. Pre-reading. (1) Look at the evolutionary tree and answer the questions. (2) Read the passage and talk about your understanding of the title. 2. Fast reading. Read the passage quickly and finish the following exercises. 3. Careful reading. (1) Language points. (2) Read the passage again and retell it. 4. Post-reading. (1) Do Activity 3 on Page 52. (2) Do Activity 4 on Page 52. (3) Discuss. Ⅲ. Summing up Ⅳ. Homework
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