外研版（2019）必修第二册Unit 6 Earth first Understanding ideas 导学案（含答案）

课 题 Unit 6 Earth first Understanding ideas
课 型 新授课 课 时 第二课时
学 习 目 标 1. To master basic knowledge of this lesson and use them freely. 2. Help students learn about the protection of marine animals. 3. To develop students’ reading comprehension’s abilities by discussion and cooperation.
重 点 难 点 1. Master some key words scare, target, phrases cut off, due to, and some expressions. 2. Help students explore the relationships between human and animals.
学 法 指 导 1.课前30分钟自主学习，完成预习学案。 找出自己的疑惑和需要讨论的问题，用红笔做好标记。 2.课上25分钟高效讨论展示答案 3.课上10-15分钟答疑解惑。 4.课后20分钟巩固学习
自主学习
1.单词汉译英： (1) v.使惊恐；吓唬 (2) n.鲨鱼 (3) n.鱼鳍 (4) n.灭绝；绝种 (5) v.潜水 (6) n.看法；态度 (7) v.把......作为目标 (8) adj.濒危的 (9) adv.幸运地 (10) adj.出乎意料的 2. 短语英译汉： (1)be scared of (2)get a load of (3)due to (4)cut off (5)have an effect on (6)come across (7)be based on (8)the other way around (9)by mistake (10)be covered with 3. 单词拼写 (1) F (切鱼鳍) is a type of fishing where sharks are caught and their fins cut off. (2) Gross overfishing may lead to them in the danger of e (灭绝). (3) You must have found my a (战斗) annoying. (4) The t (目标) was still out of range. (5) F (幸运地), the gun wasn’t loaded.
课堂探究
Understanding ideas Step 1 Leading in Tick the words that you would use to describe sharks. Add any more you can think of. Now let’s watch a video and learn something more about sharks. Step 2 Fast- reading 2 Read the passage and find out how sharks are described in the film Jaws. 3 Choose the author’s purpose in writing the passage. Step 3 Careful-reading 4 Complete the chart showing how attitudes towards sharks have changed with words and expressions from the passage. Step 4 Think & Share 1 How do you think Peter Benchley felt after diving in 1980 2 What other films or books do you know that feature wild animals Do they “paint” a good or bad picture of these animals Say how the animals are described. Sharks Dangerous ocean predators, 1 (see) by many as cold blooded killers, sharks have a 2 (fear) reputation. However, there is more to their story than meet the eye. Sharks are a special category of fish that live in every ocean in the world, 3 (most) in warm waters. Some even live in rivers and lakes. Some live near the surface, some live in the deep water and some live on the ocean floor. Some sharks stay near or on coral reefs,4 others live in the open ocean. There are many species of sharks. More than 500 species are known and they vary 5 size from small sharks not much bigger than a person’s hand to the largest fish in the world, the whale shark, 6 can grow up to 50 feet or 15 meters long. Many people are afraid of sharks, and think that sharks will attack any time they see you. For the most part, however, sharks do not attack humans. Out of hundreds of different species there are, only 4 shark species have7 (involve) in a significant number of attacks. Fewer than five people a year are killed by sharks in the whole world. In fact, many more sharks are killed by humans.8 is estimated that about 100 million sharks are killed by people every year due to fishing. Because of this, many shark species are in danger of 9 (extinct)! Now people 10 (try) to protect sharks. They play a very special role in ocean ecosystem, keeping fish populations from growing too large and helping the entire food chain remain healthy. Without sharks, the entire ocean would suffer. Step 5 Language points 1. scare v. 使(某人)惊恐；吓唬；n. 惊吓；恐慌 scared adj. 害怕的 --- scary adj. 可怕的；恐怖的 ①It scares sb. to do sth. 做某事使人感到害怕 ②scare... away/off 把......吓跑 ③be scared to do sth. 害怕做某事 ④be scared of/that... 害怕 Exercise 1. It scared me (think) I took a ship alone on the rough sea. 2. When we are getting angry or (scare), out bodies also go through many physical changes. 3. The researchers had to made a fire at the edge of the forest to scare wild animals at night. 4. The little girl are scared dogs for she was bitten. 2. target v.把......作为目标；n. 目标；对象；靶子 ①be targeted at 以......为目标 ②meet/achieve/reach a target 完成/达到目标 ③set a target 制定目标 ④be on target 有望达到目标；进展顺利；正中目标 Exercise 1. Set (your) targets that you can reasonably hope to achieve. 2. The advert for energy drink is targeted (specific) at young people. 3. We were still right target for our deadline. 4. His job is (set) targets for limiting greenhouse gases. 3. cut off 砍/切/剪掉；停止；中断；使...与外界隔绝 cut v./n. 切；割；修剪；割破；消减；切断 ①cut down 砍到；减少；缩减 ②cut in 插嘴；打断别人说话 ③cut across 抄近路穿过 ④cut up 切碎；剁碎 Exercise 1. She always focused on what her friend said and seldom cut . 2. Don’t cut the tree that gives you shade. 3. We can gain some time if we cut this field. 4. Busy with his project, he felt cut from the outside. 4. as 引导状语从句 ①as 引导时间状语从句，强调动作同时发生，“随着...” ②as引导原因状语从句，表示“因为，由于”。 ③as引导比较状语从句，表示“像......一样”。 ④as引导让步状语从句，表示“尽管，虽然”。 ⑤as引导方式状语从句，表示“按照，如同”。 Exercise 判断as引导的状语从句，写出每个as的含义。 1. Try as he might, he couldn’t open the door. 2. I can’t run as fast as I used to. 3. You’d better have a balanced diet as the doctor told you. 4. As it is fine, we shall go out for a walk. 5. As he grew older, he became less active. 答案： 1.单词汉译英： (1)scare v.使惊恐；吓唬 (2)shark n.鲨鱼 (3)fin n.鱼鳍 (4)extinction n.灭绝；绝种 (5)dive v.潜水 (6)attitude n.看法；态度 (7)target v.把......作为目标 (8)endangered adj.濒危的 (9)fortunately adv.幸运地 (10)unexpected adj.出乎意料的 2. 短语英译汉： (1)be scared of 害怕 (2)see...as... 把......视为...... (3)due to 因为；由于 (4)cut off 切断；停止；终止 (5)have an effect on对......有影响 (6)come across 遇到 (7)be based on 以......基础 (8)the other way around 反过来；倒过来 (9)by mistake 错误地 (10)be covered with 覆盖着 3. 单词拼写 (1) Finning (切鱼鳍) is a type of fishing where sharks are caught and their fins cut off. (2) Gross overfishing may lead to them in the danger of extinction (灭绝). (3) You must have found my attitude (态度) annoying. (4) The target (目标) was still out of range. (5) Fortunately (幸运地), the gun wasn’t loaded.
Homework 1. Sum up what we learned in class and take notes. 2.Preview the next period.