新人教版英语高三选修9：Unit 2教案【第4课时】

新人教版英语高三选修9：Unit 2教案【第4课时】The Fourth Period PracticingLearning about LanguageTeaching Aims:1.Revise the language points learned in the last period.2.Do the exercises in this part.Teaching Important Points:1.Discover useful words and expressions.2.Revise useful structures.Teaching Methods:1.Discussion method.2.Pair work or group work.Teaching Aids:1. a computer;2. coursewareTeaching proceduresStep1 GreetingsGreet the whole class as usual.Step2 RevisionTranslate the following sentences into English:1.我对杰夫真是搞不明白，他忽而对我友好，忽而对我视若路人。

I can’t work out Geoff out; one day he’s friendly, the next day he ignores me completely.2. 他认为美与善是一致的。

He identifies beauty with goodness．3. 到周末你很可能会发现你需要更多东西。

You might well find that you’ll need more by the we ekend.4. 他们在海上迷失的方向,任凭风和天气的摆布。

They were lost at sea, at the mercy of wind and weather.5. 即便他能通过考试，以后找工作也成问题。

He will have problems in finding a job even if he can pass the exam.6. 他把车沿着围墙停放。

He parked his car alongside the fence.Step 3 DiscussionI. Pair work. Ask the students to do the exercises about Discovering useful words and expressions.1 Replace the words underlined by ones of similar meaning from the reading passage.1 Seeing the dark clouds above him, George hurried for home.2 Sailing a boat alone far way from the shore made Flora’s parents worry about her safety.3 Clare, would you please put your bicycle next to the others in the shed?4 “Why don’t you plot a more simple route with the smallest number of stops?” asked Mary.5 Setting out on a long journey by sea with unskilled sailors would be dangerous especially if there were no modern navigational instruments.2 Find the words from the reading passage that are the opposite of these compound words. anywhere upload inward unreliableland flower strong point3 Write down the words you know, which are related to navigation and sea.4 Complete the following paragraph with the words below.precise outward nowhere awkward reference seaweedaccelerate mercy randomly voyage alongside approximateSamuel the sailor was extremely good at plotting his course using the stars as a . One day he was determined to set out on a across an unknown sea to an unknown continent. He set out with his instruments so he would not be at the of the sea. He found on his journey a rocky island. It seemed to be covered in nests. Suddenly, as Samuel looked, an enormous bird swooped down and picked him up as if he were a/ an parcel. It its speed and rose straight up into the air so as to reach the place on the rocks where its nest lay. Once there, it shook itself and threw Samuel in the direction of the nest. There seemed to be to hide but then he noticed lots of on his left and quickly hid under it. The bird landed nearby and pecked at the rocks. Samuel rolled over swiftly and found himself at the edge of the cliff. He looked down slowly with a beating heart. Below him was his boat lying the shore! “How lucky I am!” Samuel thought to himself. He then gave a mighty leap and landed in it. Once inside he could safely sail away.Suggested answers:Answer key for Exercise 1;1 overhead2 offshore3 alongside4 simplified; minimum5 voyage; seamenAnswer key for Exercise 2:nowhere—anywhere; download—upload; outward—inward; reliable—unreliable; seaweed—land flower; shortcoming—strong pointAnswer key for Exercise 4;reference; voyage; mercy; outward; awkward; accelerated; precise; approximate; nowhere; seaweed; randomly; alongsideII. Ask the students to go over the usage of the predicate and do exercise 1 about Revising useful structures.Suggested answers:1. James Cook was a great English navigator and Pacific Ocean expedition leader.2. He had not only an outstanding ability in navigation and exploration, but also a real concern for sailors' health. He carried out compulsory dietary reforms that were copied by many other ship captains.3. He had led three great Pacific voyages during his life.4. In his first Pacific voyage in 1769, James Cook rounded Cape Horn, then spent six months char-ting New Zealand, and finally explored and claimed possession of eastern Australia.5. In 1772, Captain Cook set sail to look for a "theorized great southern continent". Although they could not manage to reach Antarctica owing to the ice, he predicted that if it did exist, it would have to be a wasteland.6. In 1776, Captain cook started his third Pacific voyage, searching for the Northwest Passage from the Pacific Ocean to the Atlantic Ocean. Unfortunately, he was killed in a dispute with Hawaiian natives and his men's attempt at the Northwest Passage was unsuccessful. However, this voyage is still recognized as especially significant in the history of the discovery of the west coast of North America.III. Ask the students to do exercise 2 about Revising useful structures. Then ask some pairs to act out the dialogue.Suggested dialogue:Susan: Do you think you'll be going to that pop concert next week?Clare: No. Let's forget about that as it'll soon be time for our exams.Susan: Do you need to do more revision?Clare: I don't really think I need to do more revision. I've done enough but it'll help me forget the concert you'll be enjoying.Susan: Is there another reason why you don’t want to come to the concert?Clare: Actually there is a reason. I don't think I'm going to have enough money even though I've been saving especially for this occasion.Susan: Perhaps I can help you. I always earn extra money by cleaning cars. My father always pays me when I clean his.Clare: Well, thank you for offering to help me. Ill happily clean your father's car if he'll pay me too. Susan: I’m sure he will. He’s always been kind to my friends.Clare: I hope you'll thank him for me. I'd never be allowed to clean my father's car. He is so proud of it he won't let anyone touch it.Susan: Oh this is my father’s fourth car so the excitement has worn off a little.Clare: His fourth car? My goodness. He must have been earning a lot of money to have owned so many.Susan: I suppose so. He has his own business so he needs a car for his workClare: Oh J see! That explains things Please would you phone him now and ask him when it would be convenient for me to clean it?Susan: Of course I11 do that right aw aClare: That’s so kind of you. Now while I’m doing the cleaning perhaps you can order our tickets for the concert. I’ll go and get ready to begin work. See you soon. Thanksand goodbye.Step 4 HomeworkPreview using language.********全单元教学目标概论*********************Ⅱ.目标语言。