1、Students Learning GuideUnit21 Human Biology Writing- A Discursive Essay1. Read the short passage and then finish the tasksShould Smoking Be Banned? It has been estimated that smokers have made up half of the population in China. And the smokers are becoming younger and younger, even including some m
2、iddle school students. So should smoking be banned? Answers to this question vary greatly. Some people are in favor of the idea of smoking. They always say that it can get rid of tiredness, which makes them refreshed. Even some students smoke as they think it is fashionable. Whats more, giving and b
3、eing given cigarettes is a sign of friendship. Therefore, they carry cigarettes with them wherever they go.However, other people consider it very harmful to peoples health. First of all, smoking is not healthy, leading to lung cancer, damage organs, and weaken the immune system. In addition, smoking
4、 pollutes the air and may cause fire accidents. Thus it has become a major threat to peoples life and property. There is some truth in both arguments, but humans life and property outweighs anything else. All in all, smoking should be banned for the sake of all peoples benefits.How to write a discur
5、sive essay1. Layout ( P99 ) 2. Tense? 3. Linking words?To show personal opinion:To contrast points:To conclude a point:4. Compound Sentences:2. Pre-writing：1. Have a discussion and take notes of the two arguments.advantages disadvantages2. Translate the following sentences :1) 抢红包在年轻人中越来越受欢迎._2) 赞同这
6、一观点的人认为抢红包很时尚。_3）抢红包还能增进人们的友谊。_4）一些人反对这一行为。_5）他们认为年轻人整天拿着手机抢红包是在浪费时间6） 抢红包对眼睛也有害。_7）有些人还会被欺骗并且损失很多钱。_8）如果可以限定时间并且不打开不明网页，抢红包就不是一件坏事。_3. Writing_ _4Self-editingDo you have a clear layout write in objective ways use necessary linking words choose correct tense Unit21 Writing-A Discursive Essay Teachin
7、g Design designed by Wang Huan Class 8 Grade 2Writing：A Discursive EssayTeaching ObjectivesBy the end of this lesson, the students will be able to:1. write a discursive essay2. use some contrast linkersTeaching Important and Difficult Points:At the end of this lesson, you will be able to1. To master
8、 the outline of a discursive essay2. To use the contrast linkers correctly3. To try to use different kinds of sentence patterns in the essay.Teaching ProcessPart One: Pre-writing程序 课堂安排 目的活动方式2mRead the sample essay and match the paragraphs with the headings (PPt.No.5) To understand the structure of
9、 the text.个人练习集体核对5mWriting Help- P99Explain the layout, the tense and the linkers of the writing.(PPt.No.6-7) （学案练习1）让学生通过阅读和参考找到正确的时态与关联词，概括出本节课写作练习的要求,为随后的写作准备。个人提问集体学习5mClassify the linking words（学案练习1）(PPt.No.8-11)将关联词分类，为学生提供清晰易用的语言材料。小组学习Part Two: Writing a discursive essay6mHave a discussion
10、 about the advantages and disadvantages of grabbing red envelopes (PPt.No.13) （学案练习2）让学生讨论找出恰当的论据小组讨论10mTranslate the sentences to make preparation for writing（PPt.NO.14-15）让学生通过翻译将要点连成句子个人完成，集体核对8mWriting邀请两名学生上黑板写个人完成4mChecking(PPt.No.16) （学案练习3）请其他同学更正错误,圈出用得很好的单词和句子。 检查Homework (PPt.No.17)完善写作任务
11、。Teaching Process:Step1: Reading Read the sample essay and match the paragraphs with the headings.Paragraph1 arguments “for”Paragraph2 introductionParagraph3 arguments “against”Paragraph4 conclusionStep2：How to write ? ( Writing outline)Ask students to read the sample article and finish the followin
12、g tasks.1. Layout ( P99 ) 2. Tense? 3. Linking words?To list major points: in addition, besides, moreover , whats more, furthermoreTo contrast points: however, on the other hand, on the contrary, although/even though, despite/ in spite ofTo show personal opinion: In my opinion, Personally, As far as
13、 sb is concernedTo conclude a point: To sum up , In short, In a word, All in all, Therefore4. Compound Sentences:Step3. Pre-writing1. Have a discussion and talk about the advantages and disadvantages of grabbing red envelopes.2. Translate the sentences to make preparations for writing.Step4. Writing1. Invite two students to write it on the blackboard.2. Invite another two students to correct the writing.Step5. Summary and homework1. Invite a student to summarize how to write a discursive essay.2. Find the missing information for your essay, polish it and hand it in tomorrow.
