外研版（2109）选择性必修第一册Unit5课文理解.pptx

1、WEEK 10 LESSON 02 Unit 5 Revealing nature Understanding ideas 1 seed 2 distant 3 answer the call 4 disgrace 5 be a disgrace 6 geologist 7 sample 8 evolve 9 finch 10 beak 11 suspect 12 ancestor 13 evolution 14 generate 15 characteristic 16 decline 17 tortoise 18 blame 19 goat 20 be native to 21 22 23

2、 24 25 26 27 28 Step 01 ：Lead-in Read the passage and match the main idea of each part. Para.1 A.Darwins great achievementthe book On the Origin of Species. Para.2 B.Darwin discovered that species evolved from earlier ancestors. Para.3 C.During the journey Darwin was considering how different specie

3、s came to exist. Paras.45 D.Darwin wanted to prove whether animals evolved as adapting to the changing environments. Paras.67 E.The captain of the ship wanted someone to profit the journey on the Beagle. Step 02 ：Read for main idea Choose the main idea of the passage and give your reasons. 1. Darwin

4、s interest in various living things made him a great naturalist. 2. Darwins journey on the Beagle inspired his Theory of Evolution. 3. Darwin went on a journey to confirm his theory that humans had evolved over time. The title of the passage is “a journey of discovery”. So the passage is mainly abou

5、t how Darwins Theory of Evolution generated and developed on his journey on the Beagle. Step 02 ：Read for main idea Step 03 ：Read for detailed information Para 01： Labels on a young man In captains eyes In common peoples eyes In his families eyes He was not the captains first choice. He was a disgra

6、ce to himself and all his family He was a young man who had left medical school without completing his degree. Writing purpose: Set the suspense to attract readers interests Step 03 ：Read for detailed information Para 02： Start a journey who what collecting samples asking himself a question Charles

7、Darwin was a geologist and naturalist, fascinated by rocks, plants and animals. How did different species come to exist? Step 03 ：Read for detailed information Para 03： Generate new ideas old ideas new ideas what How to prove All species had appeared on Earth at the same time, and had not changed si

8、nce Animals evolved as they adapted to their changing environments To look for more evidence Step 03 ：Read for detailed information Para 04-05 Develop the ideas How answer of that question Darwin noticed finches beaks had evolved according to what food was available on that particular island. New sp

9、ecies of plants and animals evolved from earlier ancestors. Step 03 ：Read for detailed information Para 06-07 Propose a theory what How Peoples reaction Influence A theory of evolution. Darwin explained this theory in his book, On the Origin of Species. On the Origin of Species is regarded as one of

10、 the most important works ever written. It has changed ideas about life on Earth forever. Many people refused to believe. They were shocked. Later, more and more people started to believe his theory. asked himself a question(generated an idea) answered the question(developed an idea) published the b

11、ook (proposed a theory) started his journey Step 03 ：Read for detailed information 课文语法填空：课文语法填空： As a young man Charles Darwin was regarded as 1._disgrace to himself and his family. He didnt complete his 2._ (medicine) degree at college. However, his adventures on the Beagle led him to one of the m

12、ost important 3._ (discovery). The journey on the ship, the Beagle, offered him a good opportunity 4. _ (study) the living things on the islands. He was so fascinated by rocks, plants and animals on the islands 5._ he got his room crowded with samples. It was believed at that time that all species 6

13、._(appear) on Earth at the same time and hadnt changed since. Through his careful observation, he began to think 7._ ( different). He noticed that the beaks of the finches had some differences between them from one island to another according to what they ate on that particular island. So he thought

14、 they must have evolved from a common ancestor, and they had evolved to adapt 8._ the environment. Darwin based his new ideas on his observation and generated his theory of 9._ ( evolve). The book, On the Origin of Species, explained his theory, 10._ （cause) a heated storm of debate. Today, it is st

15、ill regarded as one of the most important works ever written. a medical differently to evolution causing that had appeared discoveries to study Step 03 ：Read for detailed information Step 04 ：Read for thinking This is an ironic（讽刺的）（讽刺的） comic by religious people to attack Darwin and his evolution t

16、heory. 1.From this we can see, was Darwins theory popular at that time? 2.Sticking to truth cost a lot in ancient times, from this perspective, what can we learn from Darwin? Step 04 ：Read for thinking Expression for references: Insist on the truth have extraordinary bravery believe in science 作业 1.问题组period one 阅读A,C两篇