概要： play, doors slam(砰) ,and all of these make sound waves. The sound waves reach the microphone, and here they are changed into electricity. Then from a tall tower called the broadcasting aerial (天线) ,electricity sends radio waves. The waves travel in every direction, and some of them reach our radio aerial. Now a wonderful thing happens. The radio waves start an electricity current (电流) in our a
单元整体教案NSEFCII-U02(The first period),标签：高二英语选修7教案,高二英语下册教案,http://www.67jx.complay, doors slam(砰) ,and all of these make sound waves. The sound
waves reach the microphone, and here they are changed into
electricity. Then from a tall tower called the broadcasting aerial
(天线) ,electricity sends radio waves. The waves travel in every
direction, and some of them reach our radio aerial. Now a wonderful
thing happens. The radio waves start an electricity current (电流) in
our aerial like the one that was first made in the broadcasting
station. Finally, the loudspeaker in our set changes electricity
into sound, and we hear the program.
The First Period
Teaching Aims:
1. Learn and master the following words and phrases:
media, reliable, fire, face, difficulty, elect, go up, burn down,
injure
2. Practise expressing opinion using the following:
What do you think of…?
What's your opinion?
Why do you choose…?
Perhaps…is more important.
I would rather choose.…
I don't think we should choose…
Maybe it would be better to choose…
Our readers want to know about…
3. Talk about news and the media.
4. Train the students' listening and speaking abilities.
Teaching Important Points:
1. Master the useful words and expressions appearing in this period.
2. Train the students' listening and speaking abilities by talking
about news and the media.
Teaching Difficult Points:
1. How to help the students understand the listening material
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