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选修8《Using LanguageⅡ》精品PPT课件优质课下载
Watch a video:
Questions:
Technology（科技）.
2. Technology has the _______ to unite（团结） us.
It gives hope to the __________.
It has given ________ to the voiceless
（无声的）.
power
hopeless
voice
However, one kind of technology is very controversial (最具争议的)，because even scientists don’t know whether it will help or harm us. What is it ?
Cloning
How much do you know about cloning?
Background information of cloning
The following statements aim to check how much you know about cloning. Please decide T or F.
1. There are two kinds of cloning. One is natural clones and the other is man-made ones. ( )
2. Cloning only happens in animals. ( )
3. Dolly the sheep is the first cloned animal. ( )
T
F
F
Questionnaire of cloning
natural clones
man-made clones
Cloning also happens in plants. Gardeners take cuttings from growing plants to make new ones.