设计任务:请阅读下面学生信息和语言素材,设计20分钟的英语写作教学方案。
教案没有固定格式,但须包含下列要点:
· Teaching objectives
· Teaching contents
· Key and difficult points
· Major steps and time allocation
· Activities and justifications
教学时间:45分钟
学生概况:某城镇普通中学高中二年级学生,班级人数40人。多数学生已经达到《普通高中英语课程标准》(实验)六级水平。学生课堂参与积极性一般。
语言素材:

There is an increasing number of school violence happening recently which have exerted terrible influence on our school life.What can we do about it? Please write a passage of at least 120 words titled with "How to improve school safety?"
Key words: campus security guard
参考答案详见解析
解析Teaching contents:How to write an argumentationabout school violence.
Teaching objectives
(1)Students will learn some new words andexpressions,like bully,school violence,guards,rebellious,pose a great danger to…;Students willknow the structure of argumentation writing.
(2)Students will be able to give suggestions underthe topic of school violence;Students can write anargumentation writing about school violence.
(3)Students will recognize that school bullying ishorrible and no one deserves to suffer from it;Students will understand that it's important for themto stand up against bullies together.
Teaching key and difficult points
(1)Teaching key point
Students will know how to write an argumentation,including the basic structure,arguments,etc.
(2)Teaching difficult point
Students can write an argumentation about schoolviolence.
Major Steps:
Step l Warming up(2 minutes)
Play a short video report about the school violencehappening recently.After the video, invite twostudents to share their opinions about it.Givecorresponding comments and make, a short
conclusion that school bullying is absolutely horribleand weshould act together to fight against it.
( Justification:Video is a powerful tool to reveal thetruth and make students echo emotionally to this phenomenon.)
Step 2 Pre-writing (9 minutes)
(1) Divide students into groups of 4 to talk about thesolutions towards this issue.And remind them thatthey can give solutions from different aspects, suchas what should school do about this; what shouldparents do about this; and what should high schoolstudents do about this?
(2) Present them the written report of this video.Give 1 minute for them to read it.After they finishthe report, ask them to circle out the solutionsrecommended,as well as some key wordsandexpressions under such topic.
(3) Tell them to write an argumentation writingbased on this report.In their writing, they shouldcover the following information:what happened,why it happened, how to deal with them.
(4) Lead them to figure out the structure about the writing first.Then make a conclusion together that the first paragraph is about the phenomenon describing;the second paragraph is about the reasons and awful effects about this phenomenon;the third paragraph is about the solutions.Then 1 will give them an oral example.
(Justification:This step should prepare the students for structure as well as the contents of the writing.)
Step 3 While-writing (6 minutes)
Ask them to write down an argumentation under thetopic of school violence in 6 minutes.While writing, I will ask them to pay more attention tothe spelling, grammar, and the logic of sentences.
(Justification:With all the preparation from pre-writing part, students will be able to write down the argumentation fast.In this step , students can practice how to organize their words, and they will learn to express their ideas logically.)
Step 4 Post-writing (3 minutes )
After they finish the writing, I will ask them to modify their draft by themselves ,and then exchange their draft to do the peer editing.
(Justification:Editing is an important process of writing.)