Unit3Electricity

1、Electricity,Electricity is a woderful kind of_. We can change it into _ in a heater, _ in a lamp, motion in a motor and _in a phone. We can _ electricity easily. We can make it with a _ or a water turbine, with a generator turns, with a simple storage _, with a photo _ cell.,Listening and complete,e

2、nergy,steam,heat,produce,sound,light,electric,battery,Without electricity, what would our life be like?,brainstorming,1.It is easy to imagine what life in our cities would be like without electricity.,Listen and tell true or false:,2.Electricity brings us entertainment and news.,3.Electricity does a

3、s much work in the countryside as in the city.,F,F,t,While you read,A Now, read the article about electricity.,Electricity works everywhere Almost everyone today uses electricity in one way or another. It is hard to imagine what life in our cities would be like without it. Electricity lights streets

4、 and buildings, and warms people and animals. It heats food in cookers and cools it in refrigerators. It drives trains and works traffic lights and lifts.,4-2,It also works the machines in factories that make all kinds of goods. Everyday wonders such as computers and televisions use electricity to b

5、ring entertainment and news to millions of families. In villages and on farms, electrical machines milk the cows and chop their food. They also cool the milk and churn the butter. Indeed, electricity finds as much work to do in the countryside as it does in the cities., churn v. 搅拌,d,b,e,c,a,f,light

6、s,warms,heats,drives,works,powers,Work in pairs. List four of the uses ofelectricity mentioned in the passage and add two more of your own to the list.,Electricity lights streets and buildings. Electricity heats food in cookers. Electricity drives trains. Electricity makes computers work. Electricit

7、y powers the underground. Electricity makes fans and air conditioners work in summer.,-Whats wrong in the picture? - - What must (mustnt)we do to save electricity? -,_,_,We mustnt use too many lights. We must use fewer lights.,We must turn off the fan when we are not in the room.,_,_,We must pull th

8、e plug after the water boils. We must not keep water boiling for a long time.,We must close the fridge door.,_,_,We must turn off all the lights before we leave the house.,We must close the windows when the air conditioner is on.,Group task :,One day , our class teacher found the light was on ,but no one was in the classroom. Therefore, she held a class meeting and asked you to discuss at the meeting. Work in groups and talk about it.,Assignment:,Write