Module 4 Unit 12 The Earth （复习课件）英语牛津上海版三起六年级上册

Unit 12 牛津上海版（试用本）六年级上册 The Earth 复习课件 Sounds Words and phrases Key Sentences Tips Practice Contents Sounds Let’s speak 字母组合  ear  的发音 /ɜː/：earth, learn, heard /ɪə/：near, hear, clear Words and phrases Words & Phrase Earth 地球 forest 森林 land 陆地 ocean 海洋 rubbish 垃圾 plastic 塑料 recycle 回收利用 clean 干净的 beautiful 美丽的 dirty 脏的 sick 生病的 stop 停止 Words & Phrase cut down trees 砍伐树木 throw rubbish into rivers 把垃圾扔进河里 use plastic bags 使用塑料袋 pick up rubbish 捡垃圾 Words & Phrase plant trees 种树 recycle glass and paper 回收玻璃和纸张 keep the Earth clean and healthy 保持地球清洁健康 Let’s play rubbish forest Earth plastic dirty recycle clean beautiful Key Sentences Key Sentences 1. The green and brown parts are forests and land. 绿色和棕色的部分是森林和陆地。 2. The Earth was very clean and beautiful in the past, but now some parts are dirty. 地球过去非常干净美丽，但现在一些地方变脏了。 3. We should stop throwing rubbish into rivers. 我们应该停止往河里扔垃圾。 4. We should stop cutting down so many trees. 我们应该停止砍伐这么多树木。 5. People work together to keep the Earth clean and healthy. 人们共同努力保持地球清洁健康。 Tips 知识点1：情态动词 should 的用法 should  是情态动词，后接动词原形，用于表达“应该、应当”的建议、责任或义务，否定形式为  should not （缩写  shouldn't ）。 它没有人称和数的变化，语气比  must  更委婉，常用于提出环保、行为规范等方面的建议。 例句： We should recycle glass to protect the Earth. （我们应该回收玻璃来保护地球。） 知识点1：情态动词 should 的用法 单项选择 1. （ ）We ______ stop using plastic bags. A. should B. can C. will 2. （ ）You ______ cut down too many trees. A. should B. shouldn't C. can't A B 知识点1：情态动词 should 的用法 单项选择 3. （ ） ______ we plant more trees? A. Should B. Must C. Do 4. （ ）She ______ pick up rubbish on the beach. A. should B. is C. does A A 知识点2：一般过去时 vs 一般现在时（对比用法） 一般过去时用动词过去式（如  was/were ,  did ），表示过去发生的动作或存在的状态；一般现在时用动词原形或第三人称单数形式，表示现在的状态、习惯或客观事实。 本课中  The Earth was clean in the past, but now it is dirty.  就是用这两种时态对比地球过去与现在的变化。 例句： The river was clean ten years ago, but now it is dirty. （十年前这条河很干净，但现在脏了。） 知识点2：一般过去时 vs 一般现在时（对比用法） 用所给词的适当形式填空 1. The Earth ______ (be) very beautiful in the past. 2. Now some rivers ______ (be) dirty. 3. They ______ (plant) trees last year. 4. We ______ (protect) the Earth every day. was are planted protect 知识点2：一般过去时 vs 一般现在时（对比用法） 完成句子 1. 地球过去很干净。 The Earth ______ ______ in the past. 2. 现在空气变脏了。 Now the air ______ ______. was clean  is dirty Practice 1.单词填空 1. The ______ (海洋) is blue and big. 2. We should ______ (回收) glass and paper. 3. Don't __________ (砍伐) too many trees. 4. The Earth is our home. We should keep it ______ (干净的). ocean recycle cut down clean 2.用所给词的适当形式填空 1. The Earth ______ (be) clean in the past. 2. Now some parts ______ (be) dirty. 3. We should ______ (plant) more trees. 4. They ______ (recycle) paper every week. was are plant recycle 3.完成句子 1. 我们应该种更多的树。 We ______ ______ more trees. 2. 你不应该浪费水。 You ______ ______ water. 3. 他们应该回收纸张。 They ______ ______ paper. 4. 她应该停止使用一次性筷子。 She ______ ______ ______ disposable chopsticks. should plant shouldn't waste should recycle should stop using 4.单项选择 1. （ ）We should ______ the Earth. A. protect B. pollute C. waste 2. （ ）The green parts are ______. A. oceans B. forests C. land 3. （ ）______ we use plastic bags? No, we ______. A. Should; shouldn't B. Can; can't C. Must; mustn't 4. （ ）People ______ rubbish to keep the park clean. A. pick up B. throw away C. cut down A B A A 5.句型转换 1. The Earth was clean.（改为一般疑问句并作肯定回答）_________________________________________________ 2.  Some parts are dirty now.（对划线部分提问）_________________________________________________ 3. They planted trees last month.（改为否定句）_________________________________________________ 4. We keep the Earth clean.（用  should  改写）_________________________________________________ Was the Earth clean? Yes, it was. How are some parts now? They didn't plant trees last month. We should keep the Earth clean. 6.阅读理解（判断正T/误F） The Earth is our home. It was clean and beautiful in the past. But now some parts are dirty. People cut down too many trees and throw rubbish into rivers. We should stop doing these things. We should plant more trees and recycle rubbish to keep the Earth clean and healthy. 1. （ ）The Earth is clean now. 2. （ ）People cut down many trees. 3. （ ）We should throw rubbish into rivers. 4. （ ）We should plant more trees. F T F T Thank you！ $