英语必修5课件.docx

1、英语必修5课件英语必修5课件1. Target language 目标语言重点词汇与短语suggest, persuade, observation, contributions, achieve, devote . to2. Ability goals 能力目标Enable the students to learn the way of persuasive writing and descriptive writing.3. Learning ability goals 学能目标Learn how to write a persuasive writing and a descripti

2、ve writing.Teaching important points教学重点Help the students to learn to write a persuasive writing and a report.Teaching difficult points教学难点How to write a report about a scientist and his / her job.Teaching methods 教学方法Task-based activities.Teaching aids 教具准备A computer and a projector.Teaching proced

3、ures & ways 教学过程与方式Step PresentationTask 1: Summarize the way of writing a report.T: Now class, if we want to write a report about a scientist, what contents should we include?S1: The life of the scientist, such as his birth and death dates, his family, his education, his personality, his achievemen

4、ts and contributions, his key factors to his success.T: Yes. You are right. And how do we make an outline about it?S2: We should put the collected information under three headlines: life, achievements and key to success.Task 2: Remind the students of the writing techniques and writing features of a

5、report.Show the following to the students.ReportFormal language with few adjectivesNo speech except quotationsNot emotionalOnly one main characterFactual structured according to experimental methodPast tense and passive voiceTask 3: Summarize the way of persuasive writing.T: You know if we want to p

6、ersuade sb, we always want to reason with him or her. We must develop our own ideas and provide some evidence to support our ideas so there are always three steps to persuade somebody else to change his or her point of view. Can you point out what the three steps are?S1: I think the first is to give

7、 your opinion and idea.S2: The second is to give the reasons and evidence to support your idea.S3: The third is to make a conclusion.Show the following to the students.A persuasive writingFormal or informal, vivid use of languageSpeech to show feelings, reactions, etcEmotional or not emotional to de

8、scribe feelings and factsOnly two main charactersFactual or imaginative based on factReason and persuade step by stepPresent tenseThen ask the students to write a short letter as required in Exercise 3.A sample version:Dear Nicolaus Copernicus,I am a student studying history and I would very much li

9、ke to read your new theory about the solar system. I hope you will publish it for several reasons. I understand the problems with the present theory. The way the planets move is not what you would expect if the earth was the centre of the universe. It is also odd that the brightness of some stars se

10、ems to change. So I agree with you that we need new theory.I know your observations have been very carefully carried out over many years. Now you must have the courage to publish them. Science can never advance unless people have the courage of their beliefs. I know you worry about what will happen

11、if you publish your new theory. No matter how people oppose it, time will show if your ideas are right or wrong.So I hope you can publish your new theory.Step WritingAsk the students to write a report about a scientist.Sample versions (见附件3, 4, 5)Step HomeworkAsk the students to do the Project on pa

12、ge 47.附 件1. How to do a science researchA science project is an investigation using the scientific method to discover the answer to a scientific problem. Before starting your project, you need to un derstand the scientific method. This section uses examples to illustrate and explain the basic steps

13、of the scientific method. The scientific method is the “tool” that scientists use to find the answers to questions. It is the process of thinking through the possible solutions to a problem and testing each possibility to find the best solution. The scientific method involves the following steps: do

14、ing research, identifying the problem, stating a hypothesis, con-ducting project experimentation, and reaching a conclusion.ResearchResearch is the process of collecting information from your own experiences, knowledgeable sources, and data from exploratory experiments. Your first research is used t

15、o select a project topic. This is called topic research. For example, you observe a black growth on bread slices and wonder how it got there. Because of this experience, you decide to learn more about mold growth. Your topic will be about fungal reproduction. (Fungal refers to plant-like organisms c

16、alled fungi, which cannot make their own food, and reproduction is the making of a new offspring.) CAUTION: If you are allergic to mold, this is not a topic you would investigate. Choose a topic that is safe for you to do.After you have selected a topic, you begin what is called project research. Th

17、is research is to help you understand the topic, express a problem, propose a hypothesis, and design one or more project experiments experiments designed to test the hypothesis. An example of project research would be to place a fresh loaf of white bread in a bread box and observe the bread over a p

18、eriod of time as an exploratory experiment. The result of this experiment and other research give you the needed information for the next step identifying the problem.ProblemThe problem is the scientific question to be solved. It is best expressed as an “open-ended” question, which is a question tha

19、t is answered with a statement, not just a yes or a no.HypothesisA hypothesis is an idea about the solution to a problem, based on knowledge and research. While the hypothesis is a single statement, it is the key to a successful project.All of your project research is done with the goal of expressin

20、g a problem, proposing an answer to it (the hypothesis), and designing project experimentation. Then all of your project experimenting will be performed to test the hypothesis.Do state facts from past experiences or observations on which you base your hypothesis.Do write down your hypothesis before

21、beginning the project experimentation.Dont change your hypothesis even if experimentation does not support it. If time permits, repeat or redesign the experiment to confirm your results.Project ExperimentationProject experimentation is the process of testing a hypothesis. The things that have an eff

22、ect on the experiment are called variables. There are three kinds of variables that you need to identify in your experiments: independent, dependent, and controlled variables.The independent variable is the variable you purposely manipulate (change). The dependent variable is the variable that is be

23、ing observed, which changes in response to the independent variable. The variables that are not changed are called controlled variables.Do have only one independent variable during an experiment.Do repeat the experiment more than once to verify your results.Do have a control.Do have more than one co

24、ntrol, with each being identical.Do organize data.Project ConclusionThe project conclusion is a summary of the results of the project experimentation and a statement of how the results relate to the hypothesis.If your results do not support your hypothesis:DONT change your hypothesis.DONT leave out

25、experimental results that do not support your hypothesis.DO give possible reasons for the difference between your hypothesis and the experimental results.DO give ways that you can experiment further to find a solution.If your results support your hypothesis:You might say, for example, “As stated in

26、my hypothesis, I believe that light is not necessary during the germination of bean seeds. My experimentation supports the idea that bean seeds will germinate without light. After seven days, the seeds tested were seen growing in full light and in no light. It is possible that some light reached the

27、 no light containers that were placed in a dark closet. If I were to improve on this experiment, I would place the no light containers in a light-proof box and / or wrap them in light-proof material, such as aluminum foil.”2. On women scientists : A speech in the International Womens DayWomen thou h

28、ast encircled the worlds heart with the depth of thy tears as the sea has the earth.Women in your laughter you have the music of the fountain of life.The message is clear; it is inspiring and presents a deep philosophy. Women would be the change agent in this fast moving worlds socio-economic scenar

29、io.We have assembled here today to celebrate the International Womens Day and also the Year of Empowerment of Women.Madam Curie who got the Nobel Prize just after two years of establishment of the Nobel Foundation first in 1903 in Physics when she shared it and then the second one in 1911 in Chemist

30、ry, created a history by winning two Nobel Prizes in a span of 8 years. I am sure, the group here is aware of the difficult conditions and laboratory arrangements under which she worked and yet, she excelled.Biotechnologists can never forget the work of Dorothy Crowfoot Hodgkin on Crystallography le

31、ading to the structure of the important biological crystals. She won the Nobel Prize in Chemistry in 1964. The work of Barbara McClintock, a geneticist won her the Nobel Prize in 1983.Just as someone said: “Developing countries that have made remarkable social progress, have done so primarily through the empowerment of women, which has had enormous impact in terms of literacy, health and economic well being of families.” What we need to do is to ensure the valuable contribution from 50% of our human resource.It is a matter of great pleasure for all of us to see that th