unit6 developing ideas外研版（2020新版）高中英语必修第三册课件 (共37张PPT).pptx

1、Unit 6 Earth first Developing ideas （P68-P71） 新标准新标准英语英语高中必修第二册高中必修第二册 Learning objectives By the end of this period, you will be able to 1. understand the main idea and structure of the passage 2. understand and remark some opinions in daily life so as to give some advice. 3. share your own persuas

2、ive letter; 4. think and share the meaning of protecting the earth low-carbon lifestyle Pre-reading 1 Which shopping bag is more environmentally friendly ? 口A plastic bag. 口A paper bag. 口Neither of these. 2What should you do to save energy when leaving your home ? 口Turn off a device. 口Unplug a devic

3、e. 口Neither of these. Activity 1 Look at the questions about “green living” and tick your answers. 3What food is better for the environment ? 口Food produced near to where you live. 口Food produced far from where you live. 口It depends. 4Which uses less water ? 口Taking a bath. 口Taking a shower. 口It dep

4、ends. 1. Whats the meaning of “green” in the title? Green truth/green living 2.Where can it appear ? A. Newspaper B. Magzine C. Novel editorial(社论) 3. Please map the structure of the passage in general. 4. What are your answers to the 4 subtitiles? Question/ introduction Body Conclusion Scanning Act

5、ivity 2 intensive reading Read the subheadings in the passage and decide if they are true or false. the truth 1. 2. 3. 4. Paper shopping bags are not good for the environment. Turn off a device wont stop it from using power. Eating local food isnt always better for the environment. Its not always be

6、tter to take a shower than a bath. Cause advice 4 times 3 times more A reusable bag still use even more Remove the plug More energy More greenhouse gases 8 mimutes 50 litres short Summary 祈使句 You should/had better/are supposed to /may as well +动词原形 Its better /a good idea to do It would be better if

7、 you could Its suggested that you shoud +动词原形 Its high time that you did 你最好在购物的时候拿一个可以重复使用的袋子 You had better take a reusable bag when you go shopping. Its a good idea to do take a reusable bag when you go shopping. 表建议的句型 Sentences 1.It takes hundreds of years for plastic to break down, but much le

8、ss time for paper. 2.However, making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water. 3It is the production of food, not its transport，that uses most of the energy and produces most of the greenhouse gases. 4. It depends on how long you sp

9、end in the shower and how large your bath is. 5.But its worth checking common ideas and opinions to see whats really green. 1.It takes hundreds of years for plastic to break down, but much less time for paper. 塑料需要花上百年的时间分解，但纸分解花费的 时间要少得多。 句型结构 It takes some time for sb./sth. to do sth. 某人/物花多少时间做某事

10、 句式仿写 昨天他修自行车用了一个小时。 It took one hour for him to repair his bike yesterday. 2.However, making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water. 然而，制造一个纸袋消耗的能源是制造一个塑料 袋消耗的能源的四倍，消耗的水也多达三倍。 句型结构 倍数表达法：A是B的倍 A动词倍数 as much/ many (n.) as +B A动词倍数

11、+ 比较级 than + +B A动词倍数+ the (size/length/width/height/weight/ number/amount)+ B 他拥有比你多五倍的书。 He has five times as many books as you. 据我所知，这个城市是那个城市的三倍大。 As far as I know, the city is three times as large as that one. As far as I know, the city is three times larger than that one. As far as I know, the

12、 city is three times the size of that one. 3It is the production of food, not its transport， that uses most of the energy and produces most of the greenhouse gases. 【翻译】 是食物的生产，而不是食物的运输， 使用了大量的能源，产生了大量的温室气体。 【句式分析】 这是一个强调句。强调的是主 语“the production of food, not its transport”。 【点津】 强调句的基本句型 陈述句: It is/

13、was+被强调部分+that/who+句子其 他部分。 一般疑问句: Is/Was it+被强调部分+that/who+句 子其他部分 特殊疑问句: 疑问词+is/was+it+that+句子其他部 分 not. . . until. . . 结构的强调句型: It is/was not until. . . that. . . 【即学活用】句型转换 (1)We cancelled our picnic because it was raining outside. (强调原因状语从句) _ It was because it was raining that we cancelled our

14、 picnic. (2)He didnt finish his homework until 10 oclock last night. (not until 的强调句型) _ _ It was not until 10 oclock that he finished his homework last night. 4. It depends on how long you spend in the shower and how large your bath is. 这要看你洗淋浴花多长时间，你的浴盆有多大。 介词宾语从句介词宾语从句 (wh-) 句式仿写 这都取决于你如何处理这个问题 I

15、t all depends on how you handle the problem. 句型结构 5.But its worth checking common ideas and opinions to see whats really green. 但看看什么是真正的绿色，检查一般的想法和 看法是很值得的， be worth doing 值得做 这部电影值得一看。 The film is worth seeing. 句型结构 句式仿写 一句多译 这个想法很值得考虑。 This idea is well worth _. This idea is worthy _. This idea i

16、s worthy _. It is worthywhile _ considering to be considered of being considered to consider the idea considering the idea 6. In some cases, local produce might have used more energy and produced more greenhouse gases than produce grown a long way away- even taking into account its transport. produc

17、e v. 产生,引起；生产,创作；出产,生育；监制,制作 n. 【u】 农产品 farm produce 【辨析】produce ，product 和production produce 【u】 农产品 farm produce product 【c】 /【u】表 示“产品”， 【c】产物，结果 production 【u】指“生产” 过程和动作本身。 【u】产量 1.Giving sometimes produces nice results. 2.He had a cow which produced milk every day. 3.In the last few years, tho

18、usands of films have been produced all over the world. 4 Farmers brought their _ (produce) to town early each Saturday morning. 5. The report was the _ (produce) of 4 years hard work. 6.As a result of Yuan Longpings discoveries Chinese rice _(produce) rose by 47.5 percent in the 1990s produce produc

19、tion product Phrases: 1_majority of 大多数 2take _ to do sth.采取措施做 3mistake. _. 把误认为 4break _分解；发生故障；失败；衰弱 5turn _ 关上 6. _ stand-by mode 在待机状态 7. remove _. 把从移除 8_ some cases 在某些情况下 9take. _ account 把考虑进去 10depend _ 依赖，依靠 the steps for down off in from in into on 1. 当我们做演讲时，我们必须把听众考虑进去 We must take the

20、 audience into account when making speeches. 2.人们经常把我错认为是我的姐姐Lily People often mistake me for my sister Lily. 3. 这台机器在最繁忙的时刻瘫痪了。 The machine broke down at the busiest hour. 4.他的健康在工作压力下垮掉了 His health broke down under the pressure of work. Translation: Writing a persuasive letter Activity 5 Read the

21、letter and answer the questions 1 What is the purpose of the letter? To call on everyone to take part in the Clear Your Plate campaign 2 What is the existing problem? Over 30% of the worlds food is wasted, while many people in poor areas do not have enough to eat. 3 What are the proposed actions fro

22、m Class 8? 3 pieces of advice It urges people to save food by not wasting anything 倡议信的目的 此次活动的目的 发出倡议的原因 发出具体倡议 总结倡议呼吁 第一段 第二段 第三段 话题词汇句型积累 I表达目的. 1. call on 号召 2.appeal to 呼吁，恳请 3. take part in/participate in/be involved in 参加 take an active part in .积极参加 4. raise your awareness of 提升意识 5.focus on

23、 /attach importance to/pay attention to 关注，重视 6. take action/ steps/measures采取措施 II表达问题原因 The reason why the environment is polluted is that we dont attach great importance to it . 环境污染的原因就是我们没有重视环境问题。 We are concerned that materials will be used up soon . 我们担心不久能源将会被耗尽。 Now people in growing number

24、s are coming to realize that taking exercise is beneficial to our health . 越来越多的人开始意识到锻炼对我们的健康有益。 A recent study shows that people spend most of their spare time on phones . 一项最近的研究表明人们把大多数的空闲时间都 花费在手机上。 III表达措施 In order to solve the problem, we should reduce waste . 为了解决这个问题, 我们应该减少浪费。 I hope you c

25、an take what I have said into consideration. 我希望你能考虑一下我所说的。 .建议的句型 VI. 总结呼吁总结呼吁 1.In a word, if everyone pays more attention to.there will be less/ fewer and.will be better. 总之，如果每个人都多关注一点，将 会更少，而将会更多。 2. Its high time we did / should do. 是时候我们做 3. Only in this way can we. 唯有用这种方式，我们才可以 当前，新型冠状病毒肺炎正

26、在席卷中国大地， 然而很多的普通民众自我保护意识不强，行动 不配合。 作为一名社区志愿者，请给小区居民 写一份倡议书，号召大家积极参加到抗击新型 冠状病毒肺炎的战役活动中。 Novel corona-virus pneumonia 当前，新型冠状病毒肺炎正在席卷中国大地， 然而很多的普通民众自我保护意识不强，行动 不配合。 作为一名社区志愿者，请给小区居民 写一份倡议书，号召大家积极参加到抗击新型 冠状病毒肺炎的战役活动中。 Novel corona-virus pneumonia Dear neighbours, We are writing to _号召_all of you to _ _

27、参加这次活动_ to fight against Novel corona-virus pneumonia. As we all know , this kind of pneumonia is spreading all over China. We are concerned that some of people lack awareness of it and dont take any action. In order to win the battle , we propose: Novel corona-virus pneumonia get together visit any

28、 relatives and friends send New Years wishes by the Internet . wear masks wash hands reduce the chance of infections. Be confident and calm spread some false information. Dear neighbours, We are writing to call on all of you to take an active part in the compaign to fight against Novel corona-virus

29、pneumonia. As we all know , this kind of pneumonia is spreading all over China. We are concerned that some of people lack awareness of it and dont take any action. In order to win the battle, we propose: Dont get together or visit any relatives and friends. And its a good idea to send New Years wish

30、es by the Internet . Its suggested that you should wear masks and wash hands often to reduce the chance of infections. Be confident and calm and dont spread some false information. In a word, only when we raise our awareness and take action can our neighbourhood become peaceful and safe. Lets start doing what we can do just now. Best wishes. Volunteers in our neighbourhood Homework 1.课时作业30 2.把倡议书写到作业上，可以拍照发给老师批 改 3.明天复习本单元重点知识和专题复习完形填 空的做题技巧。