Astronomy教案

1、Lesson PlanOfNew Senior English ForChina Students Book 3Unit4 Astronomy: the science of the stars姓 名 刘沛 学 号 41204149 院 系 外国语学院 专 业 英语 导师姓名 张义宏 二零一五年四月I.Analysis of the Teaching material2II.Teaching aims4III.Teaching keys4IV.Teaching difficulties5V.Teaching methods5VI.Teaching aids5VII.Teaching proce

2、dures:5VIII.教学评价与反思9IX.Reference.914I. Analysis of the Teaching materialAstronomy: the science of the stars is the second unit in Book 3 of senior middle school, the Peoples Education Press. The topics of that unit are the development of life, space travel and gravity which students should learn mor

3、e about by reading and discussing the offered articles. For example, the question the earth may become too hot for the lives on it. Then what will our future be? can arouse students interests on astronomy and environmental problems. Then, students can assume some situation when men land on the moon,

4、 which can be produced an article.Firstly, students in the part Warming Up can be grouped to have a discussion about astronomy and to learn some vocabularies such as the names of our solar system eight planets circle around the sun, which arouse their interests to astronomy.Secondly, students in the

5、 part Pre-Reading should know the basic thing of science and religion by some stories about origin of species which stimulate students interested in knowledge and active students thinking of flowers and imagination.Thirdly, Reading part describe the origin of life. The water which gave birth to the

6、life on the earth made earth different from other planets. According to the scientists thought, life on the earth comes from water. Millions of years later, green plants began to grow on land. They were followed in time by land animals. Some were insects. Others, called amphibians, were able to live

7、 on land as well as in the water. Later when the plants grew into forests, reptiles appeared for the first time. They produced young generally by laying eggs. And the disappearance of dinosaurs made possible the rise of mammals on the earth which gave birth to young baby animals and produced milk to

8、 feed them. In the end of that passage, there comes a compelling global problem that the earth may become too hot for the lives on it.Fourthly, teacher in part Comprehending can know whether students understand the topic which includes the conditions of origin of life by some exercise. Finally, leav

9、ing two questions exam the students ability of comprehension and deduction.Fifthly, the part Using Language includes Listening, Reading, Speaking and Writing. Part Listening describes 3 great scientists. Students in this part can temper the abilities to capture details by multiple choice and filling

10、 in the blanks. Part Reading is a science fiction story about the theory of weight, zero gravity and gravity. The topic of part Speaking is visiting the moon. Students in part Writing should find some difficulties and solutions when men land on the moon. This part can improve students ability of lis

11、tening, reading, writing and speaking and cultivate their consciousness of innovation.Period 2 Reading-How Life Began on the EarthII. Teaching aims1. Enable Students to talk about the science of the stars, the development of life.2. Let students pay attention to the issues of global warming and rous

12、e the environmental consciousness.3. Understand the text and answer the questions.4. Enable the Students to understand the details about the passage, choosing the correct answer according to the text and put the order of development of life into a time line and answer questions.5. Retell the passage

13、 using key sentences.III. Teaching keys1. Key words: Theory, atom, billion, globe, violent, carbon, atmosphere, fundamental, harmful, acid, multiply, oxygen, exist, prevent, dioxide.2. Talk about the beginning of life on the earth.3. Discuss the order of development of life.IV. Teaching difficulties

14、1. Understand the beginning of life on the earth.2. Discuss the questions:What will our future be if the earth may become too hot for the lives on it?V. Teaching methods: Skimming and scanning. Individual, pair or group work to finish each task.VI. Teaching aids: a computer and a projector, multimed

15、ia.VII. Teaching procedures:Step I Warming up (5minutes)A brief review of the eight planets around the sun and ask some question connected with the Reading part to arouse students interests.T: do you remember what we have learnt last class?T: yes, we learnt something about the eight planets around t

16、he sun and some legends about the origin of life. Who can help me to name these planets?T: and we also learnt the different theories of how life began on earth. I.e. in china, Pangu separates the sky from the earth. Western countries: in the Bible: God created the universeIn India: Brahma is the god

17、 first represented in the Hindu Triad. He is the creator of the universe and all living beings are said to have evolved from him.And if you did my homework, you will know that today we are going to learn a new theory of how life began on the earth.Step Reading(29)1. Skimming (7minutes)Read the passa

18、ge quickly and analyze its structure. Write down the main idea for each paragraph.Para.1: A widely accepted theory about the formation of the universePara 2: The formation of the earthPara.3: The importance of water for lifePara.4: The development of plants and animals on the earthPara.5: The arriva

19、l of humans and their impact on the earthT: now, open your books. I will give you 3 minutes to read the passage and 2minutes with your partner to find the main idea for each paragraph and write down it. Then I will ask some of you to share us your idea.2. Scanning (22minutes)A. Blank filling and spe

20、aking (12minutes)T: I know you guys are now very familiar with the main idea for each paragraph.And now I will give you 4minutes to read the passage again. And then work in groups of 4 to fill in the blanks to find out what happened during different period of time.Time What happenedBig Bang Atom beg

21、an to form and combine to create stars and other bodies. Between 4.5 and 3.8 billion years ago Dust settled into a solid globe.The earth exploded to produce its atmosphere.The continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. Many millions of

22、 years later The first small plants on the surface of the water produced oxygen.Early shellfish and all sorts of fish appeared.Green plants began to grow on land. Insects and amphibians appeared.Many millions of years later Reptiles appeared and they laid eggs.Dinosaurs developed, laid eggs and exis

23、ted for more than 140 million years.Mammals rose and  gave birth to babies. About 2.6 million years ago Some small clever animals with hands and feet appeared and spread all over the earth. Now Humans produce too much carbon dioxide, making the earth too hot.T: we have learnt the theory of

24、 how life began on the earth. According to that form, please finish the following blanks. (ppt)And now lets play a game. Suppose you are a great scientist who study astronomy and you will do an introduction of how life began on the earth to us by using this form. Ill give you 2minutes to practice. T

25、hen I will ask someone to do the presentation.B. Questioning (10minutes)T: after knowing how life began on the earth, we can discuss some more interesting question.T: work in groups of 4. Discuss the answers to these questions.Q1: Why was the earth different from other planets?The water remained.Q2:

26、 Why was it necessary for plants to grow before animals? Plants provided oxygen for animals to breathe.Q3：Why is it wrong in films and stories to show dinosaurs and people together?    Because dinosaurs died out long before human beings developed on the earth.Q4：There used to be nine planets in the solar system. Recently scientists have decided that one of them can no longer be considered a planet. Do you know the name of that planet? Do you know why they removed it?    Pluto. Scientists now think it is too small to be called a planet