人教版英语九年级下册unit13We are trying to save the earth-第三课时
新人教版九年级英语下册Unit 13 We’re trying to save the earth!要点详解
Unit 13 We’re trying to save the earth!要点详解1. We’re trying to save the earth!我们正尽力拯救地球！(1) 本句时态为现在进行时，表示现阶段正在做的事情。
现在进行时所表示的动作并不一定在说话人的说话时刻进行，而是在包括说话时刻在内的一段时间当中进行。
例如：George is translating a book now. 乔治现在在翻译一本书。
（说这句话时，乔治不一定正在翻译；但在包括“说话时刻”在内的一段时间当中，乔治是在从事翻译工作。
）(2) try to do 表示“设法或尽力去做某事”，实际上做与不做，视情况而定，而try doing表示“试着做”，即动作真的进行了或正在进行，成败则视结果而定。
例如：He tried to read, but he was too tired to read much.他想设法看书，但太疲倦了，没看多少。
He tried reading, but that could not make him forget his trouble.他试着看书，但这并没使他忘记烦恼。
2. I am like this animal because I am strong and intelligent.我像这种动物，因为我强壮而聪明。
(1) like在本句中做介词，意为“像”，例如：He looks like winning the race.他看来要在比赛中获胜。
She is like her mother.她像她的妈妈。
(2) like做介词时可用very，very much，rather，quite等副词修饰。
例如：You look very much like your father.你与你父亲很相像。
3. Some of the swamps have become polluted。
一些沼泽已被污染了。
人教版九年级英语Unit 13 We're trying to save the earth! 全单元教案
Unit 13We're trying to save the earth!本单元围绕环境保护的话题，并用主题图片表现噪音污染、空气污染、水污染等内容，目的是为了让学生对环境的破坏有一个直观的认识，从而激发学生强烈的社会责任感和对未来发展的思考。
Section A的重点是让学生掌握与环境污染和环境保护相关的词汇和句型，同时引导学生关爱动物、保护环境。
教学难点是让学生学会正确使用连词和结合生活实际讲述如何保护环境。
Section B在Section A所学的基础上，进一步谈论如何保护环境。
教学重点是让学生了解环境保护的方式，并落实到积极的行动当中，同时还有阅读策略和写作技巧的训练。
教学难点是让学生在阅读2a文章之后，根据所给词根找出衍生出的不同词汇，并理解前缀和后缀的不同用法。
The First Period—Section A(1a－2d)Teaching Important Points【教学重点】Key words & phrases：litter，bottom，fisherman，coal，ugly，advantage，cost，wooden，plasticnoise pollution，air pollution，water pollution，be full of，play a part in，turn…into，cut down air pollutionKey sentences：1.Even the bottom of the river was full of rubbish.2.It used to be so clean.3.Everyone in this town should play a part in cleaning it up.4.The air is badly polluted because there are more cars on the road these days.5.The air has become really polluted around here.6.We're trying to save the earth.Key structure：should＋do；used to＋do；have/has＋done；be＋done；be＋doinge．g.Everyone should help to clean up the river.The air has become really polluted.I used to be able to see stars in the sky.The air is badly polluted.Teaching Difficult Points【教学难点】★Practice the structures to talk about pollution and environmental protection.Teaching Aids【教学工具】A tape recorder，CAI or multimedia courseware.Teaching Steps【教学过程】★Step 1Leading in【新课导入】1．Greeting2．Discussion and reviewDiscuss with the students，like this：T：What kinds of pollution are there these days?S：…T：What causes the pollution?S：…3．Review the words and expressions about the topic.★Step 2Cooperative inquiry【合作探究】1．Finish the task in 1a①Show pictures or play videos about pollution and talk about the pollution.②Read these phrases in 1a.Look at the pictures in 1a and say what they see in the pictures.Write down the words and add more words.③Ask students to say out their words in each kind of pollution.2．Finish the task in 1b①Read the instructions.Get the students to read the contents in the chart and think of what they will fill in the blanks.②Play the recording for the first time.Students listen and fill in the words.③Play the recording a second time.Ask them to check the answers.Then ask the questions.Students answer with full sentences.④Ask more questions to help students learn more details.Then play the recording for the students to role－pay the conversation.3．Finish the task in 1c①Show the key words of the conversation.Ask students to retell the contents in the chart.Like this：What：dirty；bottom，rubbish；fishWhy：littering，putting wasteHow：write to，close down；help to clean up②Read aloud the model dialogue in 1c.Then in pairs，do the oral practice with more words.③Ask two pairs to perform in class.4．Finish the tasks in 2a－2b①Use PPT or pictures to show the four kinds of pollution.Get the groups of students to havea competition to say words about the pollution one by one.land pollution：…air pollution：…noise pollution：…water pollution：…②Get the students to write down these words in their notebooks.③Play the recording for the first time.Students listen and circle the kinds of pollution.Check answers with the class.④Read the sentences in 2b.Predict the contents they will fill in.Play the recording.Students listen and complete the sentences.⑤Play the recording again.Check the answers with the whole class.5．Finish the task in 2c①Read the sample conversation in 2c.Then Read the listening materials and discuss in pairs what causes the two kinds of pollution.②Students work in pairs，making dialogues.③Ask three pairs to role－play their conversations to the class.6．Finish the task in 2d①Talk about the picture in 2d.Ask：What are your ideas for solving the air pollution/waste pollution problem？Present the new words in the conversation.Such as，coal，advantage，wooden，plastic，takeaway，bin，…②Read the conversation in 2d quickly.Find out the problems about environmental pollution in the dialogue.③Read the conversation again.Ask the students to find the ways to solve the problems of air and waste pollution.④Read aloud the conversation by the recording.⑤Learn the useful expressions：What are your ideas for doing…To cut down air pollution，we should…So together，our actions can make a difference and…⑥Role－play or read the conversation in pairs until fluently.★Step 3Homework1．What are your ideas for solving the waste pollution problem?2．Write the words about the four kinds of pollution.3．Translate the following sentences into English.(1)我们正在想办法拯救地球。
人教版英语九年级全册单元unit 13 知识点+测试卷+思维导图
Unit 13 We are trying to save the earth.1.重点词汇：bottom, fisherman, coal, advantage, industry, law, gate, bottle, president, work, metal...2. 短语归纳：1. be full of 充满2. get in the shower 在洗淋浴3. leave sth in sp 把某物留在某地4. by the time... 到……的时候；到……之前5. be late for class 上课迟到6. go off 发出响声7. brush one’s teeth 刷牙8. give sb a lift 捎某人一程9. be about to 即将……；正要……10. stare at 盯着看11. in disbelief 疑惑地；不相信地12. take off （飞机等）起飞13. show up 赶到14. get a chance to do sth 得到一个做某事的机会15. leave for sth 动身去某地16. sell out 卖光17. lose weight 减肥18. run out of 用完3. 必背典句：1. We are trying to save the earth. 我们正在努力拯救地球。
2. The river used to be clean. 这条河过去是干净的。
3. The air is badly polluted. 空气受到严重污染。
4. No scientific studies have shown that shark fins are good for health.没有科学研究表明鱼翅对健康有益。
4.语法知识：英语句子成分分析组成句子的各个部分叫做句子成分。
它包括：主语、谓语、宾语、定语、状语、表语和宾语补足语等。
人教版九年级英语下册《Unit13 We’re trying to save the earth》(
The earth is polluted.
air pollution
n. 煤炭
The factories that burn coal pollute the air with a lot of black smoke.
water pollution
noise pollution air pollution water pollution _l_ou__d_m__u_si_c___ __f_a_ct_o_r_ie_s___ ____sh_i_p_s_____ __p_l_an__es______ __sm__o_k_in_g____ ___r_u_b_b_i_sh____ _m__o_b_il_e_p_h_o_n_e_s ___ca_r_s______ ___l_it_t_er_i_n_g___ b_u_i_ld_i_n_g_h_o_u_se_s_ b_u_il_d_in_g_h_o_u_s_es_ ___f_ac_t_o_r_ie_s___
Factories put waste into the river.
mobile phone pollution
litter v. 乱扔 n. 垃圾
rubbish waste 垃圾，废弃物
People should throw away litter in the bin.
n. 垃圾箱
noise pollution There are more cars on the road.
2. What are they talking about? The environmental problems.
3. What other problems do they see? There’s too much rubbish and waste in the streets.
人教版九年级英语下册unit 13 we’re trying to save the earth!
unit 13 we’re trying to save the earth! Exercise学案课题Unit 13 Exercise 课型展示课执笔人审核人级部审核讲学时间第周第导学稿教师寄语Pain past is pleasure.(无论多么艰难一定要咬牙冲过去，将来回忆起来，一定甜蜜无比)学习目标1. 掌握本单元的重点单词与短语。
2. 掌握本单元的句型。
学生自主活动材料阅读理解(每题2分，共40分)。
AMany students in China are learning English. Some of these students are small children. Others are teenagers(十几岁的青少年). Many are adults. Some learn at school, others study by themselves. A few learn English language (语言)over the radio, on television, or in films. One must work hard to learn another language. Why do all these people want to learn English? It is difficult to answer that question. Many boys and girls learn English at school because it is one of their subjects. They study their own language and maths and English ... Some people learn English because it is useful for their work. Many people often learn English for their higher studies, because at college or university(大学) some of their books are in English. Other people learn English because they want to read newspaper and magazines in English.( ) 56. Many students in China are learning English, aren't they? ____.A. No, they aren'tB. No, they areC. Yes, they areD. Yes, they aren't( ) 57. If one wants to learn another language well, he must ____.A. learn at schoolB. study by himselfC. work hardD. study hard( ) 58. The sentence "It is difficult to answer that question" means ____.A. that question is not difficult to answerB. that question is difficult to answer itC. it is difficultly to answer that questionD. it is hard to answer that question( ) 59. "Their own language" means ____.A. ChineseB. EnglishC. FrenchD. Japanese( )60. What's the Chinese of "study by themselves"?A. 和他们一起学习B. 自学C. 向他们学习D. 通过学习BA young man asked Albert Einstein, the great German scientist, what the secret of success is. The scientist told him that the secret of success is hard work. A few days later the young man asked the same question again. Einstein was very annoyed. He did not say anything, but wrote a few words on a piece of paper. On it was written: A=X+Y+Z.“What does this mean?” asked the young man.“A means “success”” explained the old scientist. “X stands for hard work, Y for good method (方法)and Z means stop talking and g et down to work.”( ) 61. The young man _________.A. wanted to meet EinsteinB. wanted to be a great scientist like EinsteinC. was eager to know the secret of successD. wanted to be a student of Einstein( ) 62. In Einstein’s opinion the secret of success was ________.A. to work with great energy (精力，活力)B. to study hard day and nightC. to learn from great scientistsD. to raise (提出)questions as many as you could( ) 63. “Y” stands for _______.A. hard workB. great energyC. great successD. good manner(方法)( ) 64. The word “annoyed” means ________.A. angry B. sad C. lovely D. glad( ) 65. Einstein was a man who ______A. liked to talk with young peopleB. liked to help othersC. liked to make friends with young peopleD. liked to work , but didn’t like to talk首字母填空1.There are t 1 _ many accidents in cities. Accidents often happen when people c_____ 2 the roads or streets. Read the passage c _ 3 __ and learn to be careful later on. Be careful when it is r 4 __. Many accidents happen on rainy days. People are in a h_____ 5 because they don’t want to get w 6_ _. They often cross the roads quickly. Often they can’t see c 7 _ _ as they hold their umbrellas in front of t _____8_ . Remember that cars take l 9_ __ time to stop when the roads are wet. When it is raining, we must be more and more careful, not l 10_ _ careful.2.We were singing, “Happy birthday to you…”My mother was smiling, surrounded by my father, my little sister and me.It was time to send wishes. My father said, “You’ve done m ____1 things for us. On this special day, let me d_____ 2 all the housework for you.”After kissing my mother, my sister said, “Mum, you’re a g ____3 mum in my eyes.”I l_____ 4 at my mother’s eyes and said, “Dear mum, I am always waiting for one day when you and Dad get old.”My parents seemed puzzled (困惑), and I explained, “When you’re old, I will take care of you just like you take care of me.”There were tears in their eyes…Yes, w _____5 they get old, I will take care of them. These words were in my mind f _____6 a long time, and at last I said them to my dear parents. I felt v_____ 7 happy.My parents are just common people, b ______8 they’re great. Like other parents, they bring us up with love, and give us food and c______ 9 . They teach us how to be real people. My parents have done a lot of things for me and I am very thankful to them.However, they will not always be able to take care of me. One day, they will get old. They may not even be able to take care of t ______10 . But that doesn’t matter. I, their child, will take charge.当堂反馈自我评价专栏(分优良中差四个等级)自主学习：合作与交流：书写：综合：。
人教九年级英语下册Unit 13 We’re trying to save the earth!课件
【词海拾贝】 volunteer bamboo gift pay attention to instead of limit implement
志愿者 竹子 礼物 注意 代替 限制 实施
【我的感悟】 Put environmental protection into practice. 把保护环境落实到 行动中去。
组卷网
ห้องสมุดไป่ตู้
不习惯读书进修的人，常会自满于现状，觉得再没有什么事情需要学习，于是他们不进则退。经验丰富的人读书用两只眼睛，一只眼睛看到纸面上的话，另 一眼睛看到纸的背面。2022年4月6日星期三2022/4/62022/4/62022/4/6 书籍是屹立在时间的汪洋大海中的灯塔。2022年4月2022/4/62022/4/62022/4/64/6/2022 正确的略读可使人用很少的时间接触大量的文献，并挑选出有意义的部分。2022/4/62022/4/6April 6, 2022 书籍是屹立在时间的汪洋大海中的灯塔。
谢谢观赏
You made my day!
我们，还在路上……
By March 5th, 2012, our country’s plastic limit to implement had been almost four years. But there are also some problems, for example, many markets still use the plastic bags.
Unit 13 We’re trying to save the earth!
【导语】保护环境是每个公民的责任和义务, 我们保护环境不 应该只挂在嘴上, 而要落实到实际行动中, 落实在生活中的点点 滴滴。现在就开始吧!
人教版九年级英语下册Unit 13 We’re trying to save the earth!
答案: 1. 垃圾 2. 底部 3. fisherman 4. advantage
5. plastic 6. wooden
Ⅱ. 短语连线 1. be full of 2. turn. . . into. . . 3. cut down 4. make a difference 5. lead to
【学以致用】
①(2014·十堰中考)—Smart phones are more and more popular
答案: 1. We’re trying 2. used to be 3. are throwing
4. 这个城镇的每个人都应该参与到清理之中!
Everyone in this town
a part in cleaning
it up!
5. 这周围的空气真的已经污染了。
The air
really polluted around here.
【自主归纳】
(1)advantage名词, 意为“优点; 有利条件”, 常用复数形式。
反义词为
, 意为“缺点; 不利条件”。
(2)advantage的常用搭配有the advantage(s) of意为“……的优
点”, take advantage of sb. 意为“占某人便宜”, take the
hands.
A. experience B. advantage C. dream
答案: take; the advantage of
this as to have big D. change
3. cost v. 花费 【语境领悟】 *It’s good for health and it doesn’t cost anything! 它对健康有好处, 并且不花任何钱! *I spent a lot of money on that holiday. 那次度假花了我一大笔钱。 *I think it’s a great idea that you now have to pay for plastic bags. 现在你得付钱买塑料袋, 我认为这是个好主意。 *It takes me forty minutes to do my homework. 做作业花费我四十分钟。
人教版九年级英语下册Unit 13 We’re trying to save the earth!教
Unit 13 We’re trying to save the earth!教学案班级姓名编号日期主备审稿________【学习内容】Unit 13 We’re trying to save the earth . Section A 1a-2d【学习目标】1. 掌握litter ,ugly ,advantage , cost ,wooden ,bottom ,fisherman, coal, plastic , takeaway ,bin，the bottom of, make a difference等单词和短语。
2．掌握Even the bottom of the river was full of rubbish.Everyone in town should play a part in cleaning it up.等句型。
3．能听懂关于环境污染和环境保护的听力材料。
能正确运用现在进行时态，used to结构，现在完成时态，被动语态和情态动词谈论环境污染和环境保护。
通过谈论环境污染，学生能培养自己的环保意识。
做到：保护环境，从我做起，从小事做起。
【自主学习】预习课本，找出重点短语.【自学检测】翻译（请同学们关上课本独立完成,完成后对子间相互批阅。
）拯救地球__________________ 大量的黑烟__________________ 大声的音乐__________________ 太多的垃圾和废物_________________噪音污染__________________ 在公众场合__________________河流底部__________________ 变成丑陋的地方________________ 参与__________________减弱空气污染__________________废物污染__________________ 木头筷子__________________被严重污染__________________塑料叉子__________________燃烧煤块__________________创造一个更好的未来______________【合作探究展示】Step 1 情景导入用多媒体给学生播放一些有关环境污染的图片或视频，然后询问学生对环境污染的看法和观点。
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第三课时Section A(4a～4c) 01基础过关
Ⅰ.根据句意及首字母或汉语提示填写单词。
1．The house is really expensive.I can't afford it.
2．How much did you pay for the computer?
3．Remember to turn off the light when you leave the room.
4．What do you think of the transportation(交通运输)in your city?
5．This kind of material is reusable(可重复使用的)．Don't throw it.
Ⅱ.单项选择。
(A)6.—Why don't you buy the computer?
—It's too expensive.I can't ________ it.
A．afford B．sell
C．borrow D．keep
(A)7.—Would you like to________us in this topic?
—Yes，I'd like to.
A．join B．join in
C．take part in D．attend
(D)8.Our government has to do something ________ our environment.
A．protect B．protected
C．protecting D．to protect
(B)9.Nobody is in the room.Please go and ________the light.
A．turn on B．turn off
C．turn down D．turn up
(A)10.—How much is the ticket to Central Park?
—A one－way ticket ________ $40，and you can ________ another $20 for a round－trip.
A．costs；pay B．cost；spend
C．pay；spend D．spends；pay
Ⅲ.根据汉语意思完成句子，每空一词。
11．我至今还没有得到她的回复。
I have had no reply from her so far．
12．最后，在一年以后，他不能再等了。
At last，after a year he could not wait any longer．
13．星期天我们常回到自己的工厂帮忙。
On Sundays we used to go back to help out in our factories.
14．上周我们班三分之一的男生参加了跑步接力赛。
One third of the boys in my class took part in the running relay race last week.
15．我们必须采取行动阻止他们污染环境。
We have to take action to stop them from polluting
the environment.
,02能力提升
Ⅳ.阅读理解。
As we know，all living things have to eat food.For a man，a tiger，a fish，a bird，or even a worm，food is necessary.Generally speaking，all living things are sure to die without food.In every part of the world，many different kinds of animals share living places and live in communities(群落) together.They are connected in a food chain.
Within a food chain，some living things are producers and some are consumers(消费者)．Plants are producers because they use sunlight，soil and other things to make their own food.Animals are consumers because they have to eat other animals or plants.
There are four different kinds of consumers in the animal kingdom.A carnivore is an animal that only eats other animals.An herbivore is an animal that only eats plants.An omnivore is an animal that eats both plants and animals.A scavenger is an animal that eats dead animals.
Look at the picture.It is an example of a food chain.The food chain shows the order that animals eat each other in a community.In the picture，you can see what animal or plant is food for another animal.See? A leaf is food for a grasshopper，which then becomes food for a hungry mouse.The mouse is food for a snake.The snake is eaten by an eagle.In this way，all of these animals are connected.
根据短文内容，判断正(T)误(F)。
(F)16.The main idea of the passage is “Four kinds of consumers”．
(T)17.A scavenger is an animal that eats dead animals.
(T)18.The food for a mouse according to the picture is a grasshopper.
(F)19.All kinds of animals share their living places with others.
(F)20.There are some living things which don't need to eat food.。