1、Unit 13 We are trying to save the earth. Warm up: Think of some endangered animals. Answer these questions: 1.What do you know about sharks? 2.Do you think sharks are endangered? Why? 3.What can we and our government do to help save the sharks? Where shark fin soup is popular Number of sharks caught
2、 and traded every year how governments can help Two environmental groups against finning Southern China Around 70 million To develop laws to stop the sale of shark fins WildAid and the WWF Lets learn some language points harmful 形容词,意为形容词,意为“有害的有害的”。常构成短语。常构成短语 be harmful to “对对有害的有害的”。 Staying up o
3、ften is harmful to your health. 经常经常 熬夜对你的健康有害。熬夜对你的健康有害。 【拓展拓展】 harm 名词,意为名词,意为“害处害处”。常用构成短语。常用构成短语 do harm to “对对有害有害”,相当于,相当于be harmful to. Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸烟吸烟 过多对他的健康有害。过多对他的健康有害。 at the top of 意为意为“在在的顶部或顶端的顶部或顶端”。 The answ
4、er is at the top of the page. There is a tower at the top of the hill. the food chain 食物链食物链 the number of “的数量的数量”, 作主语时,谓语动词用单数形式作主语时,谓语动词用单数形式 The number of the books 400. a number of “许多许多” 作主语时,谓语动词用复数形式作主语时,谓语动词用复数形式 A number of children playing in the park. is are Read the passage about shark
5、s and complete the fact sheet below. 3a3a Lets do this to review the text ! Some people like to eat sharks fin soup, especially in _China. But getting the s harks fin is very _. When people catch sharks, they _ _their fins and throw the sharks into the ocean. The shark slowly dies because it cant _
6、without the fin. And it is also _ to the environment. Sharks are at the _ of the food chain. If the number of sharks drops too low, it will break the balance of nuture. Please say no to eating the shark fin soup, and take action to save the sharks! southern cruel cut off swim harmful top Homework 1.
7、 Review the new words and expressions. 2.Recite the passage in 3a. 话话 题题 Protecting the environment 功功 能能 Talk about pollution and environmental protection 知识知识 技能技能 1. Target language: No scientific studies have shown that shark fins are good for health. The number of some kinds of sharks have fall
8、en be over 90 percent in the last 20 to 30 years. 2. Grammar: Present perfect 3. Words and expressions; (1) Curriculum words: shark, cruel, harmful, chain, ecosystem, industry, law, scientific, afford, reusable, transportation (2) Useful expressions: be harmful to, at the top of, the food chain, tak
9、e part in, turn off, pay for, take action 过程过程 方法方法 According to finishing some tasks to train students integrating skills and train the ability of expressing students own opinions 教教 学学 目目 标标 情感情感 态度态度 Animals are our friends We must know how to love them and how to protect them That way, It is goo
10、d for both animals and us 学学 习习 策策 略略 Reading for specific information. Taking notes, cooperative learning. 重重 点点 Target Language 难难 点点 How to improve students integrating skills 教学内容及问题情境教学内容及问题情境学生活动学生活动设计意图设计意图 3a. To give Ss practice in reading for specific information. Learning more about shark
11、s Ask Ss to do some additional research to find out more about sharks before this lesson. 3b. To give Ss the opportunity to review the use of conjunctions. This will enable Ss to have a better understanding and greater Shark fin soup is a Chinese delicacy that is popular not only in China, but also
12、among the Chinese population in other countries like Singapore and Malaysia. Review of conjunctions so: used to say that something is a result of something else that has just been mentioned. e.g. I was tired, so I decided to take a map. although: used to contrast one part of a sentence with another,
13、 has the effect of making the main idea in the sentence seem surprising or unexpected. e.g. Although she studied hard, she did not pass the exam. if: used to talk about the circumstances in which something else might happen; gives the condition for something else to happen. e.g. If you study hard, y
14、ou will do well. but: used to contrast two parts of a sentence and show that they are opposite or very different in meaning. e.g. The children stopped plying when they heard the bell. Make up sentences using the conjunction s: so, although, if, but knowledge about sharks. 板板 书书 设设 计计 Unit 13 were tr
15、ying to save the earth Section A 3a 4c No scientific studies have shown that shark fins are good for health. The number of some kinds of sharks have fallen be over 90 percent in the last 20 to 30 years. 反反 思思 辨析: anumberof和the numberof 1)anumberof anumberof意思是“一些,若干”(= some),后接可数名词复数或代词,谓 语动词用复数形式。
16、eg:Anumberofstudentsare playingfootball. 许多学生正在踢足球。 a number of词组中还可以加入形容词 表示数量大或小等(例如:alarge/small numberof许多/少数)。 2)注意和thenumberof的区别 thenumberof意思是“的数字/ 数目”,介词of同其后名词构成介词短 语,修饰thenumber.当它作主语时, 谓语动词用单数。例如: Thenumberofapplesis40. 苹果的数量是40. 练习: Anumberofmyfriends I shouldtakeaholiday. 我的一些朋友认为我应该休假。 Thenumberofstudentsabout twenty. 学生人数大约是20人左右。 think is
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