英语2外研版module4教案:第4-5课时

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英语2外研版module4教案:第4-5课时Periods4:WritingTeaching aims:To enable the students to learn about the structure of a typical paragraph, what is a topic sentence and how to develop a paragraph..Skill objectives:To enable the students to write a passage containing a topic sentence.To enable the students to have ability to enjoy the process of writing.Teaching important points:To enable the students to write a passage containing a topic sentence.Teaching procedures:Step1. Pre-writingFirst I’ll present a typical paragraph on the screen and analyze it, pointing out the structure of the paragraph. And then define the topic sentence.The topic sentence(主题句): We all know that cigarette smoking is a dangerous habit,because it causes health problems.Supporting sentences(拓展句): 1) Doctors say it can be a direct cause of cancer of the lungs and throat and can also contribute to cancer of other organs.2) In addition, it can bring about other health problems such as heart and lung diseases.The concluding sentence(结论句): It is clearly known as one of the chief causes of death in our society.段落中的主题句(topic sentence)是全段的统领,它说明段落的中心思想和作者写作的目的。

段落的其余句子必须与主题句密切相关,共同阐明、证实主题句。

因此,主题句具有概括性,支配段落中其他各句的走句。

有时,段落中没有结论句。

Step2. While-writing⑴After making sure students know what a topic sentence is, what the structure of a paragraph is, I’ll let them in pairs identify the topic sentences in paragraphs on the students learning plan. Meanwhile, remind students that sometimes topic sentences lies at the end of a paragraph, or even in the middle of a paragraph.Exercise One:Read the following paragraphs and underline the topic sentence.1)But no matter what it is called, all polyester has certain good points. It does not wrinkle easily. It dries quickly after it is washed. It holds its shape. It is strong and keeps its colors well.2)Names usually have origins, especially for Indians. Indians with distinctive physical characteristics, might be given names such as Big Foot or Crooked Leg. If there had been a big storm on the day of a baby’s birth, the baby might have been named Thundercloud. Grey Eagle, Red-Dog, Big Bear, and Spotted Wolf are examples of Indian names after animals.3) Electric products are closely connected with our lives. Electric alarm clocks and music pouring from our radio awaken us; we brush our teeth with an electric toothbrush, and shave with an electric razor. We read today’s headlines from newspapers printed on huge electric presses, and we write a letter on our electric typewriter before leaving for work to operate a computer and word processor.Exercise Two:Read the following paragraph carefully and select the best topic sentence from the four possible answers that follow the paragraph.1)Topic sentence:_____________________________________I love sunny days because they are ideal for outings. I remember the sunny weekend when two roommates and I had a marvelous time in the old Summer Palace. Under the blue sky, the trees are bathed in golden light. On rainy days, I enjoy the sound of raindrops beating on the windowpanes. I watch the rain washing the trees and grass clean, knowing they will glitter when it clears up and hoping a rainbow will follow. In winter, a heavy snowfall offers a different type of pleasure. Cold as it often is, I always go outdoors and leave my footprints in the thick snow while throwing snowballs and making snowmen with my fellow students.A. A person should learn to be happy in all weathers.B. One’s mood should not be affected by bad weather.C. People usually prefer fine weather to severe weather.D. I enjoy both sunny weather and rainy or snowy weather.2) Topic sentence: ______________________________________On a cloudy day the clouds hide the sun, but the sun is always there. The clouds of thoughts, worries and desires cover and hide our happiness. We have to get rid of them in order to experience it. Then the happiness that lies in the soul and is always there will give us warmth. Also, happiness does not depend on circumstances. Objects and events are not its causes. It is dependent only on one thing: the peace in our mind. This means that in order to experience happiness intentionally, we have to make our mind silent, calm and relaxed. This happiness I am talking about is constant and existing for ever. It is our nature; only our thoughts stand in our way of experiencing it. Drive away the thoughts and you are happy.A. Happiness always gives us warmth.B. Happiness can be found everywhere.C. Happiness is not dependent on our mind.D. Happiness is inside us and is not far away.Step3. Post-writingI’ll ask some volunteers to read out their paragraph and let others make comments on their writing, giving opinions.Step4. Homework⑴Let the day school students look up more information about topic sentences online.⑵Let the rest of the students work out or collect some topic sentences. And think about what a good topic sentence is.实施效果与反思:First I present the topic sentence by analyzing the structure of a paragraph, which can help students comprehend what a topic sentence is more easily, and then I give the definition in Chinese, which can strengthen or further clarify the cognition of topic sentences. And I present various practices aimed at topic sentences to the students step by step. Through the series of practice, most students can move on to the writing of common topic sentences smoothly. After they’ve exchanged opinions on their work, it is not difficult for them to write a paragraph containing a topic sentence and it is not difficult for them to tell which one is a better or best topic sentence.********************************************************Periods5:exercise(完形填空、书面表达)Teaching objectives: To make an assessment of the vocabulary, grammar, function and topic in this module.Time limit: 40 minutes 总分:45分I.单词拼写(每题1分,共10分)根据所提供的汉语意思用本模块所学的单词的适当形式填空。