Unit 7 Environment学案
unit 7 environmentreading aobjectives1 to learn the cause of the greenhouse effect2 to learn how to be a green consumerteaching procedurewarming-up1. cartoon talk2. show some relevant pictures about the pollution. before readingask the questions below: 1. what do you think of these behaviors to the environment?2. do you know what other behaviors human beings harm the environment? during the process, some new words, such as greenhouse effect, atmosphere, cause, food, soil, environmentally friendly, can be imbedded. while reading1. ask students to read the first paragraph and the headings in the review. then try to answer four questions:1. what is the name of the book?2. a consumer buys and uses things. what do you think a green consumer is?3. what do you think the main topic of the book is?4.how many topics does the review cover? key:1. the young green consumer guide.2. a consumer that only buys and uses “environmentally friendly” things. 3. the main topic of the book is to save earth.4. 4.2. scan the rest of the text and then answer the questions below:1. what lets sunlight in and keeps much of the warmth from getting out?2. what is making the greenhouse effect worse?3. what will create mountains of rubbish and pollute our land and seas?4. what is the book asking us to become? key: 1. the atmosphere around earth. 2. the burning and cutting down of trees. 3. our habit of using things once and then throwing them away. 4. the book is asking us to become “green consumers”.after-reading:1. do the exercise in a3.2. questions: how can we act as green consumers to protect the environment?3. explain some language points.学案
reading a1.根据短文和首字母提示，写出短文中所缺单词的正确形式。 the young green c_____ guide says that our world is in danger because we have many e_____ problems.our first problem is the greenhouse effect.it will c_____ the level of seas to rise and d_____ cities and even whole countries.the second one is the act that people d rainforests.it will cause f_____ because trees can help hold the s_____ .our last problem is people’s bad habits of using thing s.they throw away everything after they use it once.and this c _____mountains of rubbish and it p_____ our land and sea. 2.用所给单词的适当形式填空。 1)the professor’s talk was so_____ that i nearly fell asleep.(1ife). 2)the factory near our school lets out a lot 0i_____ gases every day.(harm) 3)people create mountains of rubbish and this causes lots of(pollute). 4)think it over before you take_____ .(act) 5)the act of destroying rainforests is making the greenhouse effect much_____ (bad). 6)we should only buy and use“environmentally friendly”things to_____ our world.(safe) 3.根据中文意思填写所缺的单词，每条横线限填一个单词。 1)为了学好英语，我们要做大量的练习。 _____ _____ _____ learn english well，we must do lot of practice. 2)树木对我们很重要，因为它们吸收二氧化碳而释放氧气。 trees are important to us because they_____ _____ carbon dioxide (二氧化碳)and let out oxygen(氧气). 3)早睡早起的习惯使我舅舅很健康。 _____ _____ _____ sleeping early and getting up early keeps my uncle healthy. 4)我希望每个人都能成为“绿色消费者”。 i hope everyone can be a_____ _____ . 5)现在我们使用环保袋，因为它们不会污染和破坏环境。 now we use “environmentally friendly’’ bags because they won’t_____ or _____ the environment. 6)他爸爸费了很大劲才阻止了他放弃学习英语。 his father tried very hard to_____ him _____ _____ up learning english.