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1、Unit9 Back to the future导学一学习目标1. 本课时四会单词2. 学会通过时间的变化来讨论生活中的变化3. 阅读训练自主学习课前导学Pair work Think of three important events of your life . Why do you think theyare important?EventReasonPrepareA Group work Choose five important historical events and research informationabout them. Then make a time line sh
2、owing when the events occurred. Use picturesto represent each event.B Group work Predict five events that you think will happen in the future. Addthem to your time line.PresentClass activity Share your time line with the class. Explain the significance of eachevent and how you predicted future event
3、s.Listening practiceTask 1 Listen and answer questions1. Have things changed a lot or a little?2. Have things changed for better or worse?Task 2 Listen and put these following sentences into right order, then fill in the blanksPeople walked everywhere There was a grocery store. There was a high scho
4、ol. Theyre going to build a shopping mall. They drive. Its a multiplex cinema. 听后练习：1. Please read the conversation and find out how many tenses are there? And underline.2. replace the underlined words to make your own conversation课后练习： 1 Complete this passage with the verbs in the box. Use the past
5、, present, or future tense. buy get have make use drive go have to sell In many cities nowadays, food shopping takes very little time. In the past, people used to go to a different shop for each item. For example, you_ meat at a butchers shop and fish at a fish market. A fruit market _fruit and vege
6、tables. For dry foods like rice or beans, you _ go to grocery stores. Today, you _all these things at a supermarket. Many supermarkets _a lot of money these days. But times are changing. Before long, people _in their cars to huge superstores to buy everything. And who knows? Soon, everyone_a compute
7、r at home. People already_them to purchase everything from food to furniture, from legal advice to medical help. 2 Choose the correct responses. 1. A: When did people travel by horse and carriage? B: _ In the next few years. About 100 years ago. These days. 2. A: When might doctors find a cure for t
8、he flu? B: _ Nowadays. In the next 50 years. A few years ago. 3. A: when did the first man go to the moon? B: _ Sometime in the future. Today. About 35 years ago. 4. A: When is everyone going to have a computer at home? B: _ In the past. Right now. Soon. 3 Complete the sentences. Use the words given
9、 and ideas from the pictures. 1. These days, people go to the beach on vacation. (beach) In the future, they might go to Mars on vacation. (Mars) 2. In the past, _ (collect records) Nowadays, _ (collect CDs) 3. A few years ago, _ (typewriters) Today, _ (computers) 4. About a hundred years ago, _ (lo
10、ng dresses) These days, _ _ (short skirts)5. Nowadays, _(20 floors) Sometime in the future, _ _ (200 floors)Apartmentsfor rentin new 200-floorbuilding.Call 555-0925for information._Apartmentsfor rentin new20-floor building.Call 555-6724 for information._ 4 New forms of energy A What forms of energy
11、do you use in your home? Do you think this will change in the next 20 years? B Read the article. THE FUTURE OF ENERGY Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, and transport people and products from place to place. Most e
12、nergy nowadays comes from fossil fuelspetroleum, coal, and natural gas. However, burning fossil fuels causes pollution. Also, if we don t find new kinds of energy, we will use up all the fossil fuels in the twenty-first century. Scientists are working to find other kinds of energy for the future. Wh
13、at might these sources of energy be? Energy from wind All over the world, people use the power of wind. It turns windmills and moves sailboats. It is a clean source of energy, and there is lots of it. Unfortunately, if wind does not blow, there is no wind energy. Energy from water When water moves f
14、rom a high place to a lower place, it makes energy. This energy is used to create electricity. In Brittany, France, for example, waterpower produces enough energy to light a town of 40,000 people. Waterpower gives energy without pollution. However, people have to build dams to use this energy. Dams cost a lot of money, so water energy is expensive. Energy from the earth There is heat in rocks
