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1、Topic 3 What can we do at home to protect the environment?Section A. Material analysis本课是第二单元第三话题的第一课时。主活动是1a和2。1a 通过记者采访Jane，询问有关Jane 在环保组织的活动，引出话题内容：如何做一个环保人士。通过介绍在生活中如何践行环保行为，自然地用到本话题的功能意念：提出建议。在提出建议的同时，又引出本话题的语法：并列句。1b是个难度比较高的听力任务。它不是单纯地考查听写，而是要求学生在听懂内容的基础上，对材料进行归纳之后再填空。1c是用第一人称来转述1a的内容，旨在向学生传播环
2、保理念。2是针对并列句而设计的专项语法训练。3a和3b是在考查学生的垃圾分类意识之后，再通过听对话来进行验证。4再次让学生对垃圾进行分类，以此来培养学生对垃圾再利用的环保理念。通过学习本课，可以增强学生的环保意识。培养学生在写作时运用连接词写出比较连贯的句子的能力。. Teaching aims1.Knowledge aims： 掌握本课的重点词汇和短语，初步学习并列句和提建议。2.Skill aims: 能够给别人提出合理的建议。能够正确地运用连接词写出并列句。能够把所听到的听力材料先归纳再填空。3.Emotional aims: (optional) 鼓励学生在日常生活中自觉践行环保行为。
3、4.Culture awareness: (optional). The key points and difficult points1. Key points: Words and phrases: nod, agreement, disagreement, protection, organization, recycle, can, give up, so that, encourage sb to do sth.be harmful to sb./sth.Sentences: We should reduce the waste we produce. We should use b
4、oth sides of paper and reuse plastic bags. Its a pleasure. Recycling can protect the environment, and it can save money, too. So we encourage students to collect waste paper and soft drink cans. Grammar: compound sentence2. Difficult points： 根据句子需要，正确地选用连接词。理解含有定语从句和情态动词被动语态的句子。. Learning strategies
5、 在1b任务中，要先听懂对话内容，再归纳填空。 在2中，要明白不同的连接词的不同用法。首先弄清上下句的关系，再确定用哪个连接词。 在3a中，要充分利用自己的生活经验和已有的知识。. Teaching aids教学新词的实物（如：胶袋、电池、易拉罐等）/有环保标识的纸盒或瓶子/录音机/小黑板/PPT图片等。. Teaching procedures Stage(time period)InteractionpatternsTeacher activityStudent activityRemarks1Getting studentsready for learning（4 mins)Class
6、activityPresent a picture of heavy haze in Beijing and analyze the cause of it, learning some of the new words.T: Hi, class. Look at this picture. Its Beijing. Whats the weather like there?T: Its neither cloudy nor foggy. Its hazy. The word“haze”was the most frequently mentioned word in 2013 in the
7、media in China. Especially in the big cities in northern China. How do you think the haze comes into being? T: What you said sounds reasonable. Air pollution plays an important part. Luckily, the government is taking measures to solve this serious problem, and many organizations are taking part in t
8、he environmental protection, too. Jane is working for such an organization.Present a picture of heavy haze in Beijing and analyse the cause of it, learning some of the new words.S1: Its cloudy.S2: Its foggy.S3: I think air pollution causes haze.S4: I think too many cars.S5: I think too many factorie
9、s.学生没有学过hazy (有霾的)，haze(霾)，老师要用汉语标注一下。学生弄懂以后才能展开后面的活动。老师在点评时可以讲解：protection, organization. 最好用构词法来呈现：protect(v)+tion=protection(n)organize（v,组织)+tion=organization (n)。2Lead-in（4 mins)Class activityPresent some real objects to learn more new words and lead to 1a.T: Perhaps some of you think its diffi
10、cult for students to do something to protect the environment. In fact, if you keep doing three Rs in your daily life, you will be a greener person. Could you guess what the three Rs refer to?T: Sorry, guess again.T: Sorry, guess again.T: Smart boy! You have got one.T: Wonderful! You have got another
11、. Whats the third one?T: Now, let me tell you. Its “recycle”. （Show the logo of recycling） Do you often see this sign on the boxes or bottles ?T: Three Rs are very important in our life. For example, we should reuse plastic bags and recycle batteries and drink cans.Present some real objects to learn
12、 more new words and lead to 1a.S1:Refuse S2:RememberS3: Reuse.S4: Reduce.S5:.Ss: Yes.老师在提到Three Rs 时，应马上板书出来，并让学生猜是哪三个单词，借此讲解“re(再)+cycle（圆，环）=recycle (v). 老师在讲解该词时可以出示循环使用的标志以帮助理解新词。老师在展示实物时，应马上板书并讲解新词。如：plastic, battery, can.3Pre-listening (2 mins)Individual workLet the Ss read the table in 1b to
13、get to know what they should pay attention to while listening. T: Now, please read the table in 1b. This time, the listening task is a little difficult. Only when you understand the dialog, can you complete the table. So while listening, you had better pay attention to the main content of the dialog
14、. Read the table in 1b to get to know what they should pay attention to while listening.1b的听写填空需要学生在完全理解对话的基础上完成，老师要提醒学生专注于听内容并要求学生在听前阅读1b,预测听力内容。4While-listening (5 mins)Individual workLet the Ss listen to 1a and finish 1b. Then check the answers.T: Now, a journalist is interviewing Jane. Lets list
15、en to what they are talking about. After listening, complete the table. When you finish, put up your hand. T: Who would like to answer the question?Listen to 1a and finish 1b. Check the answers.S1: Organization, protect the environment. S2: spread the message S3: 1b的听力任务难度有点大，可以让学生听两遍。5Post-listenin
16、g (10 mins)Individual workClass activityClass activityStep 1: Let the Ss read 1a and do 1c. Then check the answers.T: We have listened to the interview, and now lets read it. Please complete the sentences in 1c while reading. If you finish, please let me know. T: Shall we start checking the answers
17、now?T: xxx, shall we start from you?Step2: Let the Ss read 1a again to find the sentences which give suggestions.T: Have you found that in this dialog many sentences contain suggestions?T: Have you found such sentences, xxx?T: We usually use “should” to give suggestions. Who can give us an example?S
18、tep 3: Deal with language points in 1a.T: Mmm, good examples. I hope you will act as you said. Any questions? Hands up!T: xxx, please. T: Good question. We know the first “that” is an object clause, and the second one is a new kind of grammar. We will learn it in Unit4. Its called“attributive clause
19、”. Change it into“and it”, you will understand the sentence better. Who can put this sentence into Chinese?T: Perfect! Any more questions?T: Sure. “Sort” here is a verb. It means“divide according to different kinds”.“Can be recycled”is also a kind of grammar. Its called passive voice. Because the wa
20、ste cant recycle by itself. Its people who recycle it. In Chinese, the whole sentence is“然后，我们把它们进行分类以便它们能被回收再利用。”Read 1a and finish 1c. Ss: Sure.S1: Reduce, reuse ,recycleS2: Sides, plasticS3: Read 1a again to find the sentences which give suggestions. Ss: Yes.S1: We should reduce the waste we prod
21、uce. S2: We should use both sides of paper and reuse plastic bags.S3: S4: We should listen to the teacher carefully in class. S5: We should keep the classroom clean.S6: We shouldnt waste water.Step 3: Read 1a again and ask questions about some difficult points.S1: How to understand the second “that”
22、 in “We all know that you that environment”?S2:我们都知道你在一个保护环境的组织里工作。S3: Could you explain “Then we sort them so that they can be recycled”?对于本课出现的定语从句和情态动词的被动语态，老师只要让学生理解句子意思即可，不要求深度解释。为了让学生便于理解，老师可以简单地用“把”字句和“被”字句来解释被动语态。6FinishingTask 2(13 mins)Class activity Class activityIndividual workStep 1: Pr
23、esent the following sentences on the small Bb or on the screen. Let the Ss understand the underlined words to learn conjunctions. Sentences:So what can we do at home to protect the environment?Recycling can protect the environment, and it can save money, too. So we encourage students to collect wast
24、e paper andsoft drink cans.T: Please look at the sentences on the Bb and understand the underlined parts. What do we call the underlined words?T: Who can tell me some more conjunctions?T: Besides these, I can name more conjunctions, such as: for, as, since, etc. And we usually use conjunctions to ma
25、ke compound sentences. For example: Hurry up, or you will be late for school. Zhang Hong likes apples, but I dont like apples at all.Huang Rong is good at math while her twin sister is good at English.This coat looks nice and its cheap, too.Step2: Let one student come to the front to perform to lear
26、n the new words.T: Look! There are some sentences in 2. Now, read them quickly and circle the new words. If you finish, put up your hand.T: xxx, please come here.T: Only use your head, if you want to mean “yes”, what will you do?T: Right. Nodding the head means agreement. Now, how to express“no”？T:Y
27、es. Shaking the head means“disagreement”.T: Good performance. Please go back to your seat.T: Can you guess the meaning of the phrase“give up”in Number 5?T: Yes. I hope you will never give up when you are in trouble. Step3: Let the Ss combine the sentences with the given words in 2. Check the answers
28、.T: Now, combine the sentences with the given conjunctions quickly. When you finish, please put up your hand.T: Now, its time to check the answers. Any volunteers? Understand the underlined words to learn the conjunctions. S1:连接词。S2: but, or S3: while ,because Learn the new words through actions.S1:
29、 (nod his head)S1: (shake his head)S2:放弃Combine the sentences with the given words in 2. Check the answers. S1: Noise is a kind of pollution and its harmful to our hearing.S2: Work hard, or you will fail the exam.S3: 并列句是本课的学习重点。老师如果觉得用英语讲解学生难以弄明白，不妨就用汉语表述。但是“compound sentence, conjunction”这些术语要学生能听
30、懂才行，学生以后会经常听到。老师最好将所举的例子板书出来，以加深印象。老师可以自己（最好让学生）做动作同时辅以构词法来讲解: agree (v) + ment =agreement(n) dis(不)+agree（v）+ment=disagreement(n)。7 Finishing Task 3a & 3b (5 mins)Individual workIndividual workStep1: Let the Ss write the correct letter under each picture and sort the garbage. T: Look at the table a
31、nd the pictures in 3a. Write the correct letter under each picture and sort the garbage based on your own knowledge. When you finish, put up your hand.T: xxx, could you tell us your answers?T: Do you agree?T: Now, lets check the table. Who wants to try?答案 凝血酶使纤维蛋白原降解成纤维蛋白单体，而纤溶酶使纤维蛋白（原）降解成FDP，纤维蛋白单体
32、和FDP中的早期X片段可与纤维蛋白原及其降解产物和纤维蛋白晚期降解产物结合成可溶性复合物。副凝试验利用鱼精蛋白使上述可溶性复合物中的纤维蛋白单体和FDP中与X片段解离，然后纤维蛋白单体和FDP又各自聚合成肉眼可见的凝胶状物析出，这种不经凝血酶的作用而引起的凝集反应称副凝反应。T: I wont tell you whether your answers are right or not. You can check them by yourselves after listening to 3b.A组织凝血因子大量入血 D纤溶酶原激活物生成增加Step2: Let the Ss listen
33、to 3b and check the answers in 3a. T: Now, listen to 3b, and check the answers in 3a.A950万元T: Have you got the right answers now?T: So how to deal with the paper cups?Write the correct letter under each picture and sort the garbage. 3试述休克与DIC的关系7、结构化分析与设计方法、原型方法15、用原型法开发系统时，使用、评价系统原型阶段的主要任务是（ ）S1: b
34、-e-c-a-d2004年12月31日计税基础=3600-3600/15*3=2880（万元）Ss: Yes.S2: paper cups: recylced 题解 a-TF复合物既可激活因子（传统通路），也可激活因子（选择通路），从而启动凝血反应。S3: cans: recyceld14() DIC常伴有休克，重度及晚期休克又可促进DIC形成，二者互为因果，形成恶性循环。S4: B纤维蛋白单体 ED-二聚体（DD）Listen to 3b and check the answers in 3a. Ss: Yes.Ss: reduced.学生做完3a 后，可以先别核对图表中的答案，等学生听了3
35、b以后自行核对。8Summarizing and assigning homework(2 mins)Class activityStep1: Encourage the Ss to sum up this section.T: What have you learned today, boys and girls?T: What does it stand for?T: Wonderful! Grammar focus?T: Tell me some conjunctions, please.T: You have learned well today. What else?T: How？S
36、tep 2: HMKT: Today we dont have enough time to do Task 4. I hope you will finish it after class, wont you?Sum up this section.S1: Three RsS2: reduce, reuse and recycleS3: 并列句，连接词S4: and , but, while , orS5: for ,as ,since , becauseS6: 提出建议。S7: should, shouldntSs: Yes , we will . Blackboard designWha
37、t can we do at home to protect the environment?Section AWords and phrases:protect+tion=protectionorganize+tion=organizationre+cycle=recycleplasticbatterycanagree+ment=agreementdis+agree+ment=disagreementnodgive upencourage sb. to do sth.Grammar:give suggestions : should / shouldntcompound sentences:
38、 并列句conjunctions: 连接词and, but, while , or, for, because , as ,Sentences:We should reduce the waste we produce.We should use both sides of paper and reuse plastic bags.Recycling can protect the environment, and it can save money, too.So we encourage students to collect waste paper and soft drink cans.Work hard, or you will fail the exam.