老师：Hello everyone, I'm waihong from Tuoli Middle School. Welcome to my class. Today we are going to learn Unit 5, revealing nature, understanding ideas or journey of discovery, reading. Before we move to the reading part, let's see the objectives. No. 1, you will be able to find out the main idea of the text and specific information about the journey of discovery, and summarize what kind of person the main character was, according to some details.
老师：No. 2, retail the passage simply. No. 3, share opinions after learning the passage. Now please observe the picture in Activity 1 on page fifty and think about the questions. Number one, what is the name of the tree? Number two, what is evolution? Number three, can you tell us the direction of evolution 4? What species do you recognize in the picture? Let's look at the picture together. We can find the name of the tree easily at the bottom of the picture. Its evolutionary tree. Can you tell me the meaning of evolutionary tree? I know you are quite familiar with it. 4 you have Learned about it in your biology class in June.
老师：high，yes， it is 近话术 then can you tell me what evolution is in English。
老师：Evolution is mainly the development of the living things. As for. for direction of evolution generally speaking the evolution。 From single cell to multicellular life. pro carry out to you carry out a critic to terrestrial。 Low animals to high animals.
老师：生物整体进化的方向是，单细胞到多细胞，原核细胞到真丝核细胞，水生到陆生，低级到高级。 now please focus on the species in the picture i know you have talked a lot about them in your biology classes， here is a challenge for you can you name them in English according to the stages of evolution， lets start from the branch of animals paramesm 草侣虫， earthworm 蚯蚓 snail 蜗牛 crab 蟹，fish，frog， tortoise bird， horse human now lets look at the branch of plants LG 藻类植物 mouse 苔藓 phone 蕨类植物 you are so clever？
老师：you know so many English names of animals and plants then i have two more questions for you number five what factors can cause a process of evolution as we all know evolution is a long process so evolution is not only a natural selection process， but also the result of competition and communication among populations。
老师：进化不仅是一个环境通过自然选择对物种施加影响的过程，同时也是种群间相互竞争和交流的结果。 No. 6. Can you show us a very famous. most person related to evolution。 When it comes to evolution, I bet the name Darwin must occur to you first. Yes, the great geologist and naturalist Darwin. All of you did a good job. So much knowledge. Now predict the main idea of the text according to the picture and tie. the title is a journey of discovery。 Saying this, we can't help asking, whose journey is it to wear? What's the discovery? Is that a great one? In the picture, we can see a man, judging from his appearance and clothes, I guess he m
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