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。
人教版英语九年级全册Unit 13We're trying to save the earth! SectionB (2a-2e)教案人教版九年级全册Unit 13 We're trying to save the earth! Section B (2a-2e)教案I. Objectives:By the end of this lesson, students will be able to:Discuss environmental issues and solutions in English.Provide suggestions for saving the earth.Understand the use of passive voice in the context of environmental problems.II. Materials:Student textbook: Unit 13 “We’re trying to save the earth!” Section B. Whiteboard or blackboard and markers/chalk.Pictures or videos related to environmental problems.III. Procedure:Warm-up:Begin the class by showing pictures or videos related to environmental problems such as air pollution, deforestation, or plastic waste.Ask students to name the environmental problems they see and discusstheir causes and potential solutions as a class.Presentation:Introduce the topic of the lesson: environmental problems and solutions. Review the vocabulary related to the environment and add any necessary new vocabulary on the board.Discuss the use of passive voice in talking about environmental issues. Practice: (15 minutes)a. Activity 1: Vocabulary ReviewHave students work in pairs or small groups to match the vocabulary words with their definitions or examples. Use flashcards or a worksheet for this activity.b. Activity 2: Group DiscussionDivide the class into groups of four or five.Provide each group with a list of environmental problems (air pollution, water pollution, deforestation, etc.).Ask each group to discuss the causes and effects of the assigned problem and brainstorm possible solutions.Encourage students to use the passive voice when discussing the problems and solutions.Production:Hand out Worksheet 2a from the textbook to each student.Instruct students to complete the sentences using the correct passiveforms of the verbs in brackets.Allow students to work individually or in pairs to complete the task. Review the answers as a class and provide feedback.Consolidation:Conduct a class discussion and ask students to share their suggestions on how they can contribute to saving the earth.Encourage students to provide specific actions they can take individually or as a group.Summarize the key points discussed in the class and emphasize the importance of everyone’s efforts in saving the earth.Wrap-up:Assign Homework: Ask students to write a short paragraph about one environmental problem they are most concerned about and one solution they suggest.Recap the main points of the lesson and remind students to complete their homework.Assessment:Assess students based on their participation in group discussions, completion of the worksheet, and the quality of their homework assignment.Role Play:Divide the class into pairs or small groups.Assign each group a scenario related to an environmental problem (e.g., a discussion between a factory owner and an environmentalist, or a debate between two friends about the use of single-use plastics). Instruct students to prepare and perform a role play based on their assigned scenario.Encourage students to use the passive voice and express different perspectives on the issue.Research Project:Assign each student or group a specific environmental problem to research.Instruct students to gather information, statistics, and examples related to the problem.Ask students to create a presentation or poster to share their findings with the class.Provide time for students to present their research and discuss possible solutions.Writing Task:Ask students to write a persuasive letter to a local government official, addressing an environmental problem in their community.Instruct students to explain the issue, its impact, and propose specific actions or policies that can help solve the problem.Encourage students to use persuasive language and provide evidence tosupport their arguments.Homework:Review the vocabulary words related to the environment.Research and write a short essay on one global environmental issue, its causes, and its potential impact on the world. Includesuggestions for how individuals and governments can address the issue.。
一、改写句子1. Jim used to be confident about himself. (改为一般疑问句)________ Jim ________ to be confident about himself.2. Six boys are singing under the trees now.（改为一般疑问句）________ six boys ________ under the trees now?3. Kangkang went to Lake Dingshan yesterday. And now he is back in.（合并为一句）Kangkang ________ ________ to Lake Dingshan.4. Grace used to be afraid of the dark when she was a little girl.（变否定句）Grace ________ ________ to be afraid of the dark when she was a little girl.5. He often rode a bike to work when he was young, but he doesn’t do so now. （改为简单句）He ___________ _____________ ride a bike when he was young.二、单项选择6. Everything has two sides. Beautiful songs, sometimes, ________ be just noise to others.A．must B．can C．should7. My grandmother often puts her rich experience ________ good use to help us in our daily lives.A．on B．in C．to D．for8. —Who is playing the piano in the music room? Is it Mary?—No, it ________ be her. She has ________ to Beijing on business.A．couldn’t; been B．can’t; gone C．can’t; been D．mustn’t; gone9. — ________ I finish the work this week, sir?—No, you ________. You can finish it till next Wednesday.A．Must; mustn’t B．Must; needn’t C．Can; needn’t D．Can; mustn’t10. —Show me your health code (码) please, either on Wechat or Alipay.— ________. Here it is.A．It’s nothing B．Be careful C．Go ahead D．No problem11. —May I bring my mobile phone to school?—No, you ________. The new rule “no phones in schools” came out i n March this year.A．needn’t B．mustn’t C．shouldn’t12. Last year, a new old people’s home ________ in our community.A．builds B．built C．is built D．was built13. —People should use public transportation more often.—______.A．Never mind B．Not at all C．No problem D．I agree14. —Timmy, you ________ drink cold water because you have a cold.—Sorry, Mom.A．need B．needn’t C．should D．shouldn’t15. —The computer looks so old. When did you buy it?—My father ________ it for ten years.A．has had B．has bought C．have had D．have bought三、句型转换16. We must send the sick man to the hospital.（将主动语态的句子改成被动语态）_________________________________________________17. We watered the flowers yesterday.（改为被动语态）The flowers ________ ________ yesterday.18. He has been to England twice.（就划线部分提问）_________ _________ times has he been to England ?19. He wrote this book last year. (改为被动语态)This book ________ ________ last year.20. The government doesn’t allow factories to release harmful gases into the air.（改为被动语态）Factories ________ ________ by the government to release harmful gases into the air.四、单词拼写21. —Where’s your brother？—He is t________ his dog in the field.22. The sun is _____________ (照耀) and it makes us feel very warm.23. The thief is running away and the police are s_________ for him.24. 根据句意及首字母提示补全单词1. The new dictionary c________ him ten dollars.2. Eating too much chocolate is h________ to your health.3. P________ Xi Jinping visited Kazakhstan in June, 2017.4. We can protect the environment by r________ paper.5. Shall we meet at the school g________ at 7：00 a．m. tomorrow?25. The things that you don’t need anymore can actually be p__________to good use.五、用所给单词的正确形式填空26. It is said that a girl named Jones ________ (kill) in the accident.27. I think they ________ (plan) the warm-up part for the party. Let’s join them.28. This is an ____(danger) animal. We should try to save it.29. An elderly couple as well as a child ________ (notice) to enter the building just now.30. My hometown ________ (change) a lot in the last few years.六、完成句子31. 你经常参加这样的会议吗？Do you often __________ __________ in the meeting like this?32. 我将永远记得这三年以来总是严格要求我的老师们。
