高一英语教案 Period 4 Word Power
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增大字体2。Guess the meanings of the unknown words from the context．Words like launch，artificial，orbit and trace are new to you．Listen to me，please。Space exploration began with the launch of the first artificial satellite．What does‘launch’mean? What word can be used to replace
‘artificial’? What about the word ‘man—made’?
3．Now continue with your discussion by answering the following questions：
How can a space shuttle be sent into space?
Can it fly into space by itself7．
With these‘two questions’ you should focus on reading the poster the scientist is showing to you．By the way，do you know the differences between spaceship and space shuttle?
A spaceship is a vehicle for carrying people through space．
A space shuttle is a vehicle that is designed to carry people into space and back to the Earth several times to do experiments．
Think about other information the scientist may refer to in the following part of his speech．
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