高中英语必修四第二单元教案.docx

1、高中英语必修四第二单元教案Periods 1Warming up and ReadingThe General Idea of This PeriodThis period includes Warming up,Pre-reading,Reading and Comprehending of Unit 2.It introduces something about agriculture,especially about Dr Yuan and his super hybrid rice.It can help the students,especially the students in

2、cities,know something about agriculture.In fact this world faces a serious problemstarvation. So after reading the passage about Dr Yuan the students will know the importance of his achievement to man.Of course they will learn from Dr Yuan some noble characters,and learn how they should try their be

3、st to make contributions to the society. Teaching Important Points Help the students to understand the passage better. Learn and master the important words and phrases in this period. How to help the students make up their minds to make contributions to the society in the future like Dr Yuan. Teachi

4、ng Difficult Points How to help the students improve their reading ability and understand the passage better. How to master the important language points in this passage. Teaching Methods Fast reading to get the general idea of the text. Detail reading to understand the passage better. Explanation t

5、o help the students master some language points. Discussion to help the students understand better what theyve learned and to use the knowledge theyve learned in this period. Teaching Aids A tape recorder A multimedia Three Dimensional Teaching Aims Knowledge and Skills Train the students reading ab

6、ility. Learn the following useful words,expressions and drills: Words:sunburn,struggle,super,expand,circulate,equip,export Expressions:rid.of,be satisfied with,lead a.life,search for,would rather,thanks to,with the hope of,rather than Drills: 1) This special strain of rice makes it possible to produ

7、ce one-third more of the crop in the same fields. 2) He cares little about spending the money on himself or leading a comfortable life. 3) He also doesnt care about being famous. 4) He feels it gives him less freedom to do his research. 5) His other hobbies include playing mah-jong,swimming and read

8、ing. 6) Wishing for things,however,costs nothing. Enable the students to learn more about agriculture,countryside and farming.They can exchange their experience with each other by talking and realize the role that agriculture plays in human life from this part. Process and Strategies Fast reading to

9、 make the students get the main idea of the passage. Explanation to make the students master some language points. Feelings and Value It can help the students,especially the students in cities,know something about agriculture. Teaching ProceduresStep 1 Warming up T:Good morning / afternoon everyone.

10、 Ss:Good morning / afternoon,teacher. T:In unit 1 the previows we learnt some great women.Today well learn something about a famous man.At first lets look at the following pictures and tell me what the people are doing? Ss:They are farming. T:Are you from a farmers family?What do you know about farm

11、ing? (Show the following chart word by word on the screen,and ask them to tell more.) soilcropsploughingweather and climateirrigating.T:Maybe everyone knows something about the modern agriculture,but do you know anything about the agriculture in the past?Then show the students the following pictures

12、: Agriculture in the past The modern agricultureStep 2 Pre-reading The purpose of this step is to let the students know the importance of rice.By answering the two questions,the students can easily understand why we call Dr Yuan Longping a pioneer for all people,and why he devotes all his life to th

13、e rice research. T:What is the main food in all East Asian and Southeast Asian countries? Ss:Rice.It is said that there are 2.4 billion people to eat rice every day throughout the world. T:What do you think would happen if there was suddenly no rice to eat? Ss:If that happened,people there would suf

14、fer from starvation.People would be panic(惊慌) and the whole country would get into trouble. T:But today it will not happen because Dr Yuan Longping helps us.So today well learn a passage about Dr Yuan,the Father of hybrid rice.Lets come to the text. Step 3 Fast reading The reading material is about

15、an agricultural pioneer named Yuan Longping who worked hard at a new strain of rice.It has proved so successful that his technology spread into other countries.The purpose of the fast reading is to let the students find some useful information，and get familiar with the text.So in this step,the teach

16、er can design some questions the for the students,so that they can easily find the answers and finish the reading task. T:Read the text fast and find out the answers to the questions on the screen.Then Id like to ask you to answer them. Show the questions on the screen and give the students three minutes to read the text quickly. 1