一、教材分析
本單元以Inventions為話題,共設計了四個部分內容:Section A,Section B,Self check和Reading。本課是本單元的第一課,圍繞When and in what order were they invented?這一話題展開討論。
二、學情分析
初三學生的思維方式容易停滯在知識接受層,簡單地將被動語態理解為“am/is/are done”,而忽視被動語態的其他時態,如一般過去時的被動語態“was/were done”,進而無法對過去的一些發明進行討論。
三、教學資源與策略
多媒體展示法、直接展示法、交際法。
四、教學目標
1.知識與技能
(1)學習、理解掌握和運用以下單詞: invent,calculator,scoop,adjustable,heel,battery,operate.
(2)學習、理解掌握和運用以下短語:be used for,adjustable heel,battery-operated slippers.
(3)學習、理解掌握和運用以下句子:
When was...invented?It was invented in...
Who are they invented by?They were invented by...
2.過程與方法
展示一些發明引起討論—回憶一般現在時的被動語態—學習一般過去時的被動語態。
3.情感態度與價值觀
(1)通過互相提問,充分調動每個學生的積極性和主動性。
(2)通過討論,使學生意識到生活中的發明,培養學生創新意識。
五、教學重難點
1.教學重點:使學生熟練掌握本課重點單詞和短語。
2.教學難點:使學生掌握被動語態各種時態的用法。
六、教學過程
Step 1: Lead-in
T:Greet the students. Show some pictures of some inventions around our lives. Ask the students“Can you imagine one day without inventions?”
S:Discuss the question asked by the teacher.
Step 2:Vocabulary
Ask the students to play a card game. Show the cards to the students one by one. Correct their mistakes in pronunciation and understanding.
Step 3: Presentation
Point to the picture of an invention, and ask the students “What is this?What is it used for?” Get several more examples from the students. Then ask the students “When was it invented?” repeat it .and tell the students should answer “It was invented in...”
S1:It’s a car. I think it was invented in 1876.
S2:No,it’s wrong. It was invented in 1885.
Step 4:Listening
Activity 1b. First talk about some information in the picture. Say,“Now listen to a recording and match the inventions with the dates.” Then help the students practice the similar dialogue simply in 1c.
七、教學評價
1.通過課堂提問,可以及時反饋到學生對目標語言的掌握程度。教師提出問題When was it invented?并引導學生用 It was invented in...來回答,激發了學生的思維,極大地調動了積極性。
2.通過問卷調查,課前制定出有關本節課內容的問卷調查,在下課前發給學生,讓學生自己對本節課的掌握程度進行評估。另外附加適當語法練習,從而客觀地判斷學生的接受程度。
3.通過觀察,可以看出在進行造句練習過程中,學生積極踴躍,能夠熟練掌握句型。
八、教學反思
1.在導入課題時,運用幻燈片展示各種發明的照片,激發學生的興趣,讓學生開動腦筋進行討論。
2.被動語態是初中階段的一個語法重點,部分學生對這部分學習缺乏自信心,在英語課堂上雖然利用幻燈片等多媒體形式使學生感到新穎特別,但是學生仍不積極參與。
3.由于初三英語教學的特殊性,我的講解基本上還拘泥于教材的信息,而開放型的課堂比例還較小。在本節課上,知識的教授難度不大,對部分尖子生的關注不夠,在今后的教學中,應注意使尖子生得到關注。
(作者單位 西北大學附中)
編輯 武浩然