Ⅰ 指导思想与理论依据

（一）指导思想：《普通高中英语课程标准(实验)》(以下简称《课标》)明确指出:“高中英语课程的设计与实施有利于学生优化学习方式，使他们通过观察、体验、探究等积极主动的学习方法，充分发挥自己的学习潜能，形成有效地学习策略，提高自主学习的能力;要有利于学生学会运用多媒体和信息资源，拓展学习渠道，形成具有个性的学习方法和风格。”

（二）理论依据：以做中学、探究式科学教育、建构主义科学教育理念为理论依据。

1.“做中学”科学教育关注学生在学习过程中的思维活动，既重视学生的动手操作，同时更重视学生在学习过程中的想法，即要学生“既动手又动脑”。本节课在教学设计中注重了学生的获取信息、分析信息、加工信息等“动脑”的过程。

2. 探究式科学教育，要求人的学习是在真实情景中，通过亲身探究，不断修改自己对事物的认知。学生只有通过亲身探究，把对事物的解释纳入到自己已有的认知网络中，才有意义。

3. 茨基的观点主张教学以学生的“前概念”为起点，搭建支架，最终跨越“最近发展区”而达到新的发展水平。

Ⅱ 教学背景分析

1）教学内容分析

   本节课是牛津版高中英语模块二第一单元《Tales of the unexplained》中Project的部分，仍然围绕单元的中心话题“未解之谜”展开，属于探究式学习。由阅读材料和Project的四个步骤（planning, preparing, producing, presenting）组成。阅读部分介绍了雪人、大脚怪和神农架野人之谜。通过学习、实践、讨论，激发学生的好奇心和求知欲望，鼓励学生运用从阅读材料中所掌握的方法进行分工合作，从背景材料中提取、组织信息完成一个未解之谜的写作,并进行展示。

2）学生情况分析

1.经过前面几个课时的学习,学生对于很多未解之谜有粗浅的了解,但由于课业负担较重,没有太多的时间去深入了解相关信息。

2.学生具有一定的阅读理解能力和信息收集能力，但在有限的时间内查找、分析、加工信息的能力还有待提高。

Ⅲ 教学目标及重难点

   按语言知识、语言技能、学习策略、情感态度、文化意识、多元评价六个方面将本课教学目标细化：
1) 语言知识目标：回顾有关未解之谜的知识，学习一篇介绍雪人、大脚怪和神农架野人之谜的文章，并掌握有关词汇。

2) 语言技能目标：在语言输入的同时完成语言输出，在听说读写中提高语言技能，着重培养学生的能力:速读，浏览，跳读，精读和任务型阅读能力，还包括分析概括能力，语言表达能力，书写能力，合作能力，沟通能力。帮助学生在完成本课的各项任务中提高综合语言运用能力。

3) 学习策略: 1.有信心，热情地参与课堂上各种活动：能读懂本课阅读材料的内容和含义，学习阅读技巧，如在文中通过根据任务提炼细节信息,根据典型句子提炼段落大意，根据段落大意提炼文章结构的技巧。2.通过合作学习,学会收集，学会思考，学会表达，学会讨论，学会倾听，学会评价。在小组合作中，学习他人之长处，学习沟通技巧。

4) 情感态度目标：1.培养学生的探索精神。2.培养学生合作的意识和交流能力。
5) 文化意识：了解外界信息，拓宽知识面，如世界各地的未解之谜，科学家们的研究工作，联系自身，增强探究科学、探索大自然奥秘的意识和精神。

6) 多元评价：中学生很在乎他人的评价，自我意识却不断增强。因此，在本课教学过程中，在注重启发引导，培养学生分析、概括能力的同时，更注重教学方法的灵活性，通过任务型教学法，阅读教学法，合作学习法等，激发学生学习的兴趣，让学生乐于接受，易于接受。主要采用小组评价，师生评价的评价方式。在对学生给出评价同时，增强他们英语学习的自信心。
   教学重点：

帮助学生学会从哪些方面讲述未解之谜。

   教学难点：

如何帮助学生搭建支架，让学生顺利完成未解之谜的写作并汇报。

Ⅳ 教学过程

板书设计

附阅读材料：

A

   The "Monster of Lake Tianchi" in the Changbai Mountains in Jilin province, northeast China, is back in the news after several recent sightings. The director of a local tourist office, Meng Fanying, said the monster, which seemed to be black in colour, was ten metres from the edge of the lake during the most recent sighting. "It stayed out of the water like a seal—about 200 people on Changbai's western peak saw it," he said. Although no one really got a clear look at the mysterious creature, Xue Junlin, a local photographer, claimed that its head looked like a horse.

   In another recent sighting, a group of soldiers claim they saw an animal moving on the surface of the water. The soldiers, who were walking along the side of the lake, watched the creature swimming for about two minutes. "It was greenish-black and had a round head with 10-centimetre horns(角)", one of the soldiers said.

   A third report came from Li Xiaohe, who was visiting the lake with his family. He claims to have seen a round black creature moving quickly through the water. After three or four hundred metres it dived into the water. Ten minutes later the monster appeared again and repeated the action. Mr Li Xiaohe said that he and his family were able to see the monster clearly because the weather was fine and the lake was calm.

   There have been reports of monsters in Lake Tianchi since the beginning of the last century, although no one has seen one close up. Some photos have been taken but they are not clear because it was too far away. Many people think the monster may be a distant cousin of the Loch Ness monster in Scotland. They also think that there might be similar creatures in other lakes around the world. Scientists, however, are sceptical. They say that the low-temperature lake is unlikely to be able to support such large living creatures.

   Lake Tianchi is the highest volcanic lake in the world. It is 2,189 metres high and covers an area of about ten square kilometres. In places it is more than 370 metres deep.

1. How many sightings of the monster does the article report?

__________________________________________________________________

2. Who saw the monster clearly, and why?

__________________________________________________________________

3. Which description of the monster is most detailed?

__________________________________________________________________

4. When was the monster first sighted?

__________________________________________________________________

5. What is special about Lake Tianchi?

__________________________________________________________________

B

   The Bermuda Triangle (百慕大三角) is also called Devil’s Triangle. It is an imaginary（幻想的） area in the Atlantic Ocean. It extends（延伸） more than one million square kilometers between the island of Bermuda, the coast of southern Florida and the island of Puerto Rico. Drawing an imaginary line to link these three places creates the three sides of a triangle.

   The mystery surrounding the Bermuda Triangle is that the area seems to be extremely dangerous to airplanes and ships. Some people believe that at least fifty ships and twenty planes have disappeared there during the past one hundred years.

   The accident that first suggested the danger of the Bermuda Triangle was the disappearance of five American Navy planes in 1945. The planes carried fourteen people on a training flight. They never returned. And a plane sent to search for them also disappeared. Newspaper reporters and other writers called the planes the Lost Patrol. They began trying to explain the tragic events. Some of the explanations were strange. One writer said there were powerful forces under the water. These forces interfered（干扰） with communication devices and caused planes to crash and ships to sink. Another writer said creatures from outer space guarded the area. These creatures pulled the planes and ships to another planet. Some critics（评论家） said the Bermuda Triangle stories were false. They said most of the events that took place in the area could be explained scientifically. And they said most of the accidents linked to the Bermuda Triangle did not happen there. Critics said only about five real accidents happened within the triangle’s borders. The United States Coast Guard agreed. It said the stories about the Bermuda Triangle were mostly science fictions and should not be taken seriously.

1. What made the Bermuda Triangle special?

 A. It extends over one million square kilometers.

 B. Its bad weather.

 C. Its beautiful scenery.

 D. It’s not safe for planes and ships.

2. Which of the following has the similar meaning to the underlined word “tragic” in   

  Paragraph 4?

 A. Interesting    . B. Terrible.

 C. Pleasant.       D. Moving.

C

   Once people called them“flying saucers（碟形物）”.Now they usually have a different name, UFOs — Unidentified Flying Objects.There are hundreds of stories and some photographs of these spaceships from other worlds and the “men” in them.
   On 4th February 1977, fourteen boys at a school in Wales all saw a silver object,as big as a bus,with a red light on top.“We saw something come out of it.It had a helmet（头盔）.We ran and told our teacher but when we came back it wasn't there.”Afterwards, the teachers put the children into different rooms and asked each one to draw a picture of the spaceship.All the drawings showed the same object.

   Pauline Coombs also lives in Wales. In April 1977 she was in her car with her children when she saw a light in the sky. she said,“It was in front of us. It was no bigger than a football and yellow.The object came nearer to the car and followed us. The children began to cry. Near the farm where we lived,the car suddenly stopped. I stayed out with the children and we ran up the road.The thing still followed us. When I got in the house I was so afraid that I couldn't speak.”

Has anyone ever found an empty UFO？The governments of many countries do not like to talk about this, but scientists in Spitsbergen in Norway think that they found a UFO. They said, “We thought at first that it was a Russian plane but now we are sure that it is not. We have never seen the metal(金属) in this object anywhere before. In fact，we have no idea at all what it is.”

   A much strange thing happened in Gdansk in Poland. There, an object fell into the sea near the town. Then, people on the beach saw a man. He could not speak and did not seem to know where he was. They took him to the hospital for help. The doctors saw that he had seven fingers on each hand. The man wore metal clothes and he had a metal bracelet(手镯) on his hand. When the doctors took off the bracelet, the man died. They cut open his body and found that some of the parts were very different from those of a normal man.

True or False questions.

(  )1.UFO refer to a flying machine.

(  )2. The teachers put the fourteen boys into the same room and asked each one to draw a picture of the spaceship.They showed the same object.

(  )3. The light Pauline saw in the sky is as small as a football.

(  )4. scientists in Spitsbergen in Norway believe the object they found was a UFO.

(  )5. A strange man was found dead in the sea in Gdansk in Poland.