1、第 1 页 共 6 页 M5U3 Period 6 Task（牛津译林版）Teaching Important PointsTry to learn how to check and correct informationlearn to identify grammatical errors and spelling mistakes,to make changes to the information in the text and change the style or tone of the text.Teaching Difficult Points When listening,t
2、he students should know how to correct and make changes if necessary,and they are also expected to participate in a discussion effectively.Teaching MethodsSituational approach and presentational approach.Teaching AidsA tape recorder and multimedia.Three Dimensional Teaching AimsKnowledge and SkillsB
3、y listening and practising,the Ss will learn how to change and correct a text,how to confirm information.Process and StrategiesThis section is divided into several steps and each step begins with a skill building activity.Feelings and ValuesBesides the knowledge itself,the Ss will also get some prac
4、tical advice on a common social problemgiving their opinion on GM food.Teaching ProcedureStep 1 Revision根据要求写出单词的适当形式：1.legal（反义词）_ 2.moral（反义词）_3.appear（反义词）_ 4.responsible（反义词）_5.hope（反义词）_ 6.disappoint（名词）_7.agree（名词）_ 8.conclude（名词）_9.perform（名词）_ 10.intend（名词）_Keys:1.illegal 2.immoral 3.disappe
5、ar 4.irresponsible 5.hopeless 6.disappointment 7.agreement 8.conclusion 9.performance 10.intentionStep 2 Lead in and discussionT:Lets play a game called “Chinese whisper”,you will be divided into several groups of ten.The first student will whisper a sentence to the second 第 2 页 共 6 页 student and th
6、en the second to the third until the sentence is passed to the last student in the groups.Only two minutes will be given to you.The last student in each group will report the information to the whole class.The groups coming up with the correct answer win.Try to find what mistakes each group has made
7、 and analyze what kind of mistakes they are.Here is the sentence:Mrs.Smiths hens laid many eggs last year.Step 3 Changing or correcting a text S:Read the guidelines in Skills building 1 on Page 52.You should focus on what you should do to change and correct the information.S:Read the notes on Page 5
8、2 and think about the conversation you are going to listen to.Underline the places where you think mistakes might occur.Answers:1.8 cm18 cm 2.per weekevery day 3.去掉 not 4.45-yearold35-year-old 5.threetwo 6.1418 7.5560 8.5%85% 9.185 00085 000 Step 4 Confirming informationT:Youve done quite good jobs.
9、Now lets come to next jobread the notes about GM food on Page 53 carefully and confirm the information on the notes while listening to a conversation.You need to correct and make changes if necessary.Listen to the tape and do the exercises in Part A.T:Before listening,please answer some questions,th
10、ey are as follows:What does GM stand for? What is GM food? Is it the same as natural food?S:Answer the questions.Answers:A:2.fatterfaster 3.keepdont help keep 4.more expensivecheaper5.is后加 not 6.better thanthe same as 7.are 后加 not8.cheapermore expensive 9.are 后加 not10.would not paydont mind payingB：
11、1.wrong 2.wrong 3.wrong 4.rightStep 5 Conducting a discussionT:In your daily life,you are often asked about your opinion on many things,such as,who is your favorite movie star or singer? What answers did you get for the homework? etc.Please conduct a discussion in which you give information but also
12、 ask others to give you information.Look at the useful expressions on Page 54 to help you.I will give one for example.T:Here is a picture.What would you say if you want to know my opinions on this picture? But people may have different opinions in the picture,what would you say? Please think of diff
13、erent ways to ask for opinions and introduce new ideas.第 3 页 共 6 页 T: Read the guidelines and compare their answers with the expressions on Page 54.They should know when to use the useful expressions.Step 6 Reporting back to a science journalT:Since we have learnt how to ask for opinions of others a
14、nd introduce new ideas,lets practice the different expressions by interviewing a scientist about GM food.T:Please work in groups of four to discuss what questions you will ask,and write down your questions and a possible heading in the interview.S:1.Safety of GM food Do you think it is safe for peop
15、le to have GM food?2.Possible side effects Are there any side effects if people have GM food?3.Taste compared with normal food Does it taste the same as/nicer than natural food? 4.Cost Do you agree that GM food is more expensive than natural food?5.Need for government control Do you think the govern
16、ment should do something to ensure its safety? If so,what should be done?6.Popularity for buyers Will you or will you not buy the GM food? T:One student acts as the scientist and one acts as the student representative to practice the dialogue.T:Students work in small groups and do Part D.Discuss the
17、 points in the box with your deskmates to gather more opinions on GM food.Step 7 ConsolidationT:Work in groups and conduct more practice about asking others opinions.Step 8 HomeworkSurf the Internet to find more information about GM food,then try to report your job to others in the next period.The D
18、esign of the Writing on the BlackboardUnit 3 Science versus natureThe sixth periodInterview form1.safety of GM food 2.Possible side effects3.Taste compared with normal food 4.Cost5.Need for government control6.Popularity for buyersRecords after Teaching_Activities and Research 1.Ss try to list the t
19、hings they know about GM food,then try to exchange their opinions with their partners,by doing like this,they may learn from 第 4 页 共 6 页 others and realize the importance of cooperation in their everyday study and life.2.Try to learn in performance.In this period,they will act as a scientist and a s
20、tudent representative.Reference for TeachingBackground information什么是“转基因食品”(GM Food)呢？转基因食品，就是指科学家在实验室中，把动植物的基因加以改变，再制造出具备新特征的食品种类。许多人已经知道，所有生物的 DNA上都写有遗传基因，它们是建构和维持生命的化学信息。通过修改基因，科学家们就能够改变一个有机体的部分或全部特征。不过，到目前为止，这种技术仍然处于起步阶段，并且没有一种含有从其他动植物上种植基因的食物，实现了大规模的经济培植。同时许多人坚持认为，这种技术培育出来的食物是“不自然的” 。世界上第一种基因移
21、植作物是一种含有抗生素药类抗体的烟草，1983 年得以培植出来。又过了十年，第一种市场化的基因食物才在美国出现，它就是可以延迟成熟的番茄作物。一直到 1996年，由这种番茄食品制造的番茄饼，才得以允许在超市出售。 为什么一些人认为转基因技术或许对人类健康有害呢？批评者认为，目前我们对基因的活动方式了解还不够透彻。我们没有十足的把握控制基因调整后的结果。批评者担心突然的改变会导致有毒物体的产生，或激发过敏现象。另外还有人批评科学家所使用的 DNA会取自一些携带病毒和细菌的动植物，这可能引发许多不知名的疾病。我们应该相信我们所吃的食物吗？为了确保消费者的安全和维持信心，所有食品都必须经过一系列的检
22、测管理程序。检测程序的目的是在食品上市前就发现问题。如果消费者不幸因为所吃的食品而得病，这往往是因为食品生产线存在问题。Language points1.cost n.Uthe amount of money needed to buy,do or make somethingFor many parents,two salaries are essential to cover the cost of(=pay for)school fees.对于许多父母来说,两份薪水支付上学的费用是很基本的。2.look forward to:-ing form of v./n.She was looki
23、ng forward to seeing the grandchildren again.她盼望着再次看到她的孙子孙女们。带 to doing的常用结构1.动词+介词 to+动名词admit to doing sth 承认做了某事apply to doing sth 适用于做某事object to doing sth 反对做某事see to doing sth 负责做某事stick to doing sth 坚持做某事第 5 页 共 6 页 take to doing sth 喜欢上做某事，逐渐习惯做某事devote to doing sth 贡献appeal to doing sth 呼吁2
24、.动词+宾语+介词 to+动名词apply oneself to doing sth 专心致志做某事limit sth to doing sth 把限制在做某事的范围内give ones life to doing sth 献身于做某事pay attention to doing sth 注意做某事set ones mind to doing sth 决心做某事addict oneself to doing sth 沉溺于做某事3.be+形容词+介词 to+动名词be equal to doing sth 能胜任做某事be used to doing sth 习惯于做某事be opposed
25、to doing sth 反对做某事be reduced to doing sth 使某人沦为做某事be devoted to doing sth 献身、致力于做某事be limited to doing sth 把限制在做某事的范围内Exercises Related to This Unit1.They teach the vocabulary of the English used in computer science,which is also listed_in the glossary.A.in sum B.in total C.in general D.in full答案:D解
26、析:in full“全部地/彻底地” ，in total “合计/总共” ，in sum“总而言之” ，同in general。2.He couldnt_an answer when I asked him why he was late.A.end up withB.come up withC.catch up withD.fit in with答案:B解析:end up with“以结束” ，come up with“提出” ，catch up with“赶上” ，fit in with“符合/适应” 。3.The man whom I think to be a black sheep
27、in our village will_the imprisonment.A.end up withB.be ended up withC.end up withD.be ended up with答案:A解析:end up with 意思同上题解析。4.Some day,we will_the natural energy,leaving nothing to our children and grandchildren.A.use allB.run out第 6 页 共 6 页 C.use upD.run out all答案:C解析: use up 意思是“用光” ，相当于 run out of。5.Before the college entrance examination,many students have shown_of tension.Some have trouble in sleeping while others have lost their appetite(胃口).A.anxietyB.marksC.signsD.remarks答案:C解析:anxiety“忧虑/挂念” ，marks “分数/记号/踪迹”,sign“标记/迹象” 。
