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设计任务:请根据以下教学内容设计一节听力课的教案。该教案应突出以下要点:
Teaching objectives
Teaching key and difficult points
Major steps and time allocation
Activities and justification
教学时间:45分钟
语言素材:
FIGHTING GROWING DESERTS
Why do we have deserts today?Deserts have not always been here.Most deserts that we have today were once green lands full of the plant life.One of today′s biggest deserts is in North Mrica.However,in the 1 st century BC farms in the North Africa grew corn and wheat to make bread for the whole city of Rome.How did this area become desert?
Both weather and people can help form a desert.Hot weather or very little rain makes the land so dry that nothing can grow.If people cut down or burn trees and plants to make land clear for farming,the wind can blow the soil away and turn the dry land into sand.Another big problem is farming on land that is not very good.
This poor land can very quickly turn into desert,if it is farmed too much.One of the biggest causes,however,is when people take their animals to the same fields to feed over and over,and the fields finally lose all their nutrition.Because of these problems,deserts are slowly taking over green land in many parts of the world,including China.
However,we can fight the growing deserts!In some parts of China people are working to prevent desert from expanding.In Xinjiang,for example,some farmers are trying new scientific farming methods.
These methods make it possible to use less land for crops,so farmers then can plant trees on the rest of their land!
One Xinjiang farmer,used only half of his fields to grow the same amount of crops as last year.On the other half of his land,he planted fruit trees.The work of people like this is helping to fight the world′s growing deserts.
Teaching objectives:
(1)Knowledge objective
Students can learn about the causes of the desert and?the method to prevent desertification.
(2)Ability objective
①Students can understand the function of topic sen-tences,and take notes about how the desert comes into?being.
②Students can predict the listening material accord-ing to the title and test their guessing.
(3)Emotion objective
Students can realize the serious environmental prob-lems and the importance of environment protection.
Teaching key and difficult points:
(1)To know about the causes of the desert and the?method to prevent desertification.
(2)To take notes of the topic sentences and answer?some questions with the help
Teaching procedures:
Step 1 Pre-listening(7 minutes)
(1)Lead in
①make a story based on four pictures
The teacher presents four?pictures about desertifica-tion,then asks four students to make a story each ac-cording to one picture.
②discussion
The students discuss the reasons that cause a green?land into a desert in?group of four.
(Justification:The vivid pictures and story-making?activities are helpful for students to concentrate their?attention on the class.The discussion will activate?students'background knowledge.)
(2)predicting
According to the title of the listening material Fight-ing Growing Deserts,guess what will be discussed.
Step 2 While-listening(30 minutes)
(1)listen and check
Listen to the tape for the first time and check the?guessing.
(2)listen and fill
Listen to the tape for the second time and fill in the?blanks.
(3)listen and write
Listen to the tape for the third time and answer the?questions.
①Why was North Africa important in the first?century BC?
②How many factors are there to form a desert?
What are they?
③How are new farming methods helping to stop the?desertification in Xinjiang?
(4)group discussion
Work in groups of four and discuss how to prevent a?green land from turning into a desert.
(5)dictation
Listen to the tape and have a discussion.Write down?every single word.
(Justification:The activities?provide the students?with chances to guest and test,to use the strategy of?note-making,to improve the listening ability.)
Step 3 Post-listening(6 minutes)
Have an interview.Talk about the causes of the des-ert and methods of prevention.
(Justification:The interview between two students?will consolidate what they have learned.In the mean-time,the students will enhance their understanding?of the causes of desert,and improve the environment?consciousness.)
Step 4 Homework(2 minutes)
Write a passage within 120 words about how a desert?comes into being and how we can prevent the?desertification.
(Justification:The writing will both review what the?students have learned and help the teacher check to?what extent that they have mastered the knowledge.)
有“泥土诗人”之称的诗人是()。
将下列各项按所表示年龄大小顺序排列,正确的顺序应是( )。
①不惑②垂髫③花甲④加冠⑤而立⑥古稀⑦半百
1931年,一位给人们带来光明的科学家重病的消息牵动着世界人民的心,几十名记者为他守夜。每隔一个小时就对外发布一次消息:“灯”还亮着。这位科学家是( )。
钱穆在评论中国古代某制度时说,它“可以培植全国人民对政治之兴味……可以团结全国各地域于一个中央之统治”,这一制度是()。
明朝初年强化君主专制的措施是()。
知识是个体通过与环境相互作用后获得的( )。
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在我国历史上,传统音乐与外族音乐、北方与南方音乐进行广泛交流的时期是()。
教育的本体功能之一是( )。
一个国家教育经费投入的多少最终取决于( )。