高二英语教案：unit 14 Satellite(3)
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3.Ask the students to read out their short passage about the dialogue. 4.Check the vocabulary in Part 1 by asking comprehension questions. Step 2 Presentation 1.Get the students to talk about the picture and describe what they can see. 2.Let the students read the passage and answer the questions. (1. Because it has to be light; it has expensive equipment; it contains very expensive cameras. 2. Radio and TV programmes; signals; information and photos of weather conditions.] Step 2 Reading 1.Go through Ex.1 and make sure the students know what to do. 2.Let the students read the passage carefully and answer the questions, working in pairs. 3.Check the answers with the whole class. 4.Play the tape for the students to listen and repeat. 5.Ask the students to read the passage. Step 3 Note making Types of satellite: broadcasting/ weather/ communication/ space What satellites can do: take photo/ make electricity/ change direction/ receive and send signals/ collect and send information/ carry out experiments Step 4 Language points 1.First, it must be Very light, the lighter the better, because it has to be sent up into space by a rocket. * the more, the more 越......， 越...... The sooner, the better. The more, the better. The higher it flies, the smaller it appears. The harder you work, the greater progress you will make. 2.It has equipment for making electricity from sunshine, using very broad sun panels. * make A from B 用A制成B She made a dress from this material. * be made from * be made of * be made into * be made up of The bridge was made of stones. Mother made my trousers from an old pair of my father’s. The school was made up of two parts. Bamboo can be made into paper. * using very broad sun panels Westerners eat food, using dorks and knives. Please make a sentence, using the phrase “either… or”. 3. Once the satellite goes into orbit round the earth, the panels are unfolded in order to catch the sunshine. * once 一旦...就....引导时间状语从句，相当于 as soon as. 但as soon as强调时间的紧跟性，而once则更加强调条件，含if 之意. You will love the beautiful place once you get there. Once you get into the habit of smoking, you wont be able to give it up easily. Once you understand the rule, you will have no further difficulty. A decision shouldn’t be changed once it is made. * once adv. 一次 They came to see me once every two months. I used (责任编辑：admin) |