1、1.What species do you recognize in the picture?Look at the evolutionary tree and answer the questions.Evolutionary tree2 What factors can cause the process of evolution?1.What species do you recognize in the picture?Look at the evolutionary tree and answer the questions.Parameciumearthwormsnailcrabf
2、ishtortoisebirdhorsehumanEvolutionary treealgaemossfernplants2 What factors can cause the process of evolution?the ever-changing environmentEvolutionary treepopulation immigration genetic mutation natural selection Charles Darwin and his Theory of Evolution Charles Darwin (1809-1882) was an English
3、geologist and naturalist.Charles Darwin In his famous book On the Origin of Species, Darwin proposed the theory that life evolve extremely slowly. He stated that the life that was better suited to their environments would survive and pass on their favorable characteristics to the next generation, wh
4、ile the less suitable life would gradually die out. He called this process “natural selection.”Charles Darwin Choose the main idea of the passage and give your reasons. 1Darwins interest in various living things made him a great naturalist. 2Darwins journey on the Beagle inspired his Theory of Evolu
5、tion. 3Darwin went on a journey to confirm his theory that humans had evolved over time.Understanding ideasA Journey of DiscoveryRead the 2nd to 6th paragraph and number the puzzle pieces in order.1 12 23 34 45 5Para2Para2Para2-3Para2-3Para4Para4Para5Para5Para6Para61 ON HIS JOURNEY Darwin studied _
6、_. He noticed that some species of animals were _.various living things in their naturalenvironments and samples of the plants and animalshe had collectedvery similar to each otherPara2Para22 GENERATE IDEAS Darwin asked the questions: How did different species _? _come to existMaybe animals evolved
7、as they adapted to theirchanging environments? What was peoples opinion at that time? Did he give up?3 LOOK FOR MORE EVIDENCE On the Galpagos Islands: He noticed _ _. It seemed the beaks _ _.that there was a difference between thefinches on each of the islandshad evolved according towhat food was av
8、ailable on that particular island The Galapagos Islands(加拉帕戈斯群岛加拉帕戈斯群岛) )在厄瓜多在厄瓜多尔西方约尔西方约10001000公里的太平洋公里的太平洋上，由上，由1414个散布在赤道附近个散布在赤道附近的小岛组成的小岛组成。 Galapagos在西班牙语中的意在西班牙语中的意思就是乌龟。此群岛正如思就是乌龟。此群岛正如其名，岛上有重量超过一百公其名，岛上有重量超过一百公斤的象龟，使达尔文一行人大斤的象龟，使达尔文一行人大为吃惊，另外，还有长达一公为吃惊，另外，还有长达一公尺以上的鬣蜥，这种蜥蜴有住尺以上的鬣蜥，这种蜥蜴有住在海
9、岸附近的海生型及住在内在海岸附近的海生型及住在内陆的陆生型，且两者不属同种。陆的陆生型，且两者不属同种。4 DEVELOP IDEAS Darwin suspected that the finches _ _ and it had _ _.slowly evolved intoa common ancestor, which had arrived on the islands a long time beforemany new specieshad evolved from5 PROPOSE A THEORY The Theory of Evolution: living things,
10、 including humans, _.had evolved from lower forms of lifean animal that lived in the past which a modern animal has developed from 2. Why were many people “shocked” by Darwins theory? 1. Why he didnt publish his theory until 1859, about 20 years after his discovery?A Journey of Discoverygenerate ide
11、as, look for evidence, develop ideas and propose a theory; collect, analyze datat exploring, revealing natureThink and Share2 What kind of person was Darwin according to the passage? Darwin was a determined man. He had strong curiosity and interests in science and was good at thinking and making dis
12、coveries. Charles Darwin was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance 1_(study) various living things in their natural environments. He noticed that some species of animals were very similar
13、 2_ each other. At that time, people believed that all species had appeared on Earth at the same time, and 3_(change) since. But Darwin began to think differently. When the ship reached the Galapagos Islands in 1835, it 4_(be) the birds that interested him the most. He suspected that the different 5
14、_(finch) had evolved from a common ancestor, 6_ had arrived on the islands a long time before.直击高考直击高考 to study to had not changed wasfinches which It was a 7_(complete) new idea-a theory of evolution. Darwin explained this theory in his book, On the Origin of Species. Many people refused to believe
15、 that living things, 8_(include) humans, had evolved from lower forms of life. But Darwins scientific studies were so convincing 9_ more and more people started to believe his theory. Today , the book is regarded as one of the most important works ever 10_(write). completelyincluding that writtenNew journeys of discovery are always on the way.
