1、A Journey ofDiscoveryR e v e a l i n g n a t u r e -u n d e r s t a n d i n g i d e a s B o o k 4 U n i t 5S t a r t i n g o u tWatch the video and answer the questions.S t a r t i n g o u t1 How can seeds travel?How can this benefit plants?2 Can you think of another example of seeds travelling?Shar
2、e it with the class.Seeds usually are carried by the wind,water,and animals.Plants can have a better chance at life.by the windby waterby animalsLook at the evolutionary tree and answer the questions.Paramecium(草履虫),earthworm(蚯蚓),snail,crab,fish,tortoise,bird,horse,human,frog,algae(藻类),moss(苔藓),fern
3、(蕨类植物),plant.The ever-changing environment of nature;environmental changes;population immigration;genetic mutation(突变).1 What species do you recognise in the picture?2 What factors can cause the process of evolution?p r e -r e a d i n g BritishBiologist,Naturalist The founder of Theory of Evolution
4、Published the Origin of Species Sailed around the world on the Beagle for five yearsCharles Robert Darwin进化论物种起源p r e -r e a d i n g 小猎犬号Read the passage and talk about your understanding of the title.A Journey ofDiscoveryChoose the main idea of the passage and give your reasons.1.Darwins interest i
5、n 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.p r e -r e a d i n g Para 2-5The text is organized in order of_.Para 1Para 6-7 timeBefore the journe
6、yDuring the journey genre of the passage:After the journeynarrative“Whats more,he had recently received a letter from his father predicting that he would be“a disgrace to yourself and all your family.”Para.1 句中的predicting.是现在分词作定语，修饰a letter predict vt.预言 be a disgrace 是耻辱，是丢脸的事并且在他刚收到的家书中，父亲预言他将会成为
7、“自己和全家人的耻辱”。Para.1 Para.2 Para.3 Para.4 Para.5 Para.6 Para.7 Introduction On his journey Generate ideas Look for more evidenceDevelop ideas Propose a theoryConclusionw h i l e -r e a d i n g 1 On his journey various living things in their natural environments and samples of the plants and animals he
8、 had collected very similar to each other2 Generate ideas come to exist Maybe animals evolved as they adapted to their changing environments3 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 particu
9、lar island4 Develop ideas had evolved from a common ancestor,which had arrived on the islands a long time before slowly evolved into many new species5 Propose a theory had evolved from lower forms of life“It was not published until 1859 and immediately caused a storm.”Para.6 cause a storm 本意：引起风暴，这里
10、取延伸义，即“引起轰动”这本书直到1859年才出版，出版后立即引起了轰动。“But Darwins scientific studies were so convincing that more and more people started to believe his theory.”Para.6“so.that.”意为“如此以至于”；that在此引导结果状语从句。convincing adj.令人信服的；有说服力的但是达尔文的科学研究是如此具有说服力，以至于越来越多的人开始相信他的理论。_ to believe people were _ to believe refusedshocke
11、dstartedPeoples reaction towards the theoryw h i l e -r e a d i n g Today,On the Origin of Species is regarded as one of the most important works ever written.It has changed ideas about life on Earth forever.And it all began with the journey on the Beagle.Para.7A Journey of Discoveryw h i l e -r e a
12、 d i n g 1.At that time,many people believed that all species had appeared on Earth at the same time and had not changed since,but Darwins theory proposed that living things,including humans,had evolved from lower forms of life,which,as a result,shocked many people.2.Darwin was a determined man.He h
13、ad strong curiosity and interests in science and was good at thinking and making discoveries.p o s t -r e a d i n g 1.1.追溯到追溯到2.2.从从.中受益中受益3.3.响应号召响应号召4.4.尽管如此尽管如此5.5.一直以来一直以来6.6.讨论中的；有疑问讨论中的；有疑问7.7.被被.所吸引所吸引8.8.挤满了挤满了9.9.与与.相似相似10.10.适应适应11.11.逐渐形成逐渐形成12.12.被看作是被看作是 date back toprofit from.answer the calldespite all thisof all timein questionbe fascinated by.be crowded with.be similiar to.adapt tocome to existbe regarded as p o s t -r e a d i n g Thanks
