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选修8《Using LanguageⅡ》新课标PPT课件优质课下载
1.In pairs, look at these pictures and discuss which ones are natural clones and which ones are man-made. Explain how they differ.
differ vi 不同 adj.不同的 n.不同
differ from/ 与……不同
Modern airplanes early ones.
即时练习：The climate here ___________________ that of the South. 这儿的气候和南方的气候不同
different
difference
be different from
differ from/are different from
differs from/is different from
课文原句
It is a way of making an exact copy of another animal or plant.
exact: adj. 精确的 adv.精确地
即时练习:Dolly the sheep looks (exact)the same as its original sheep.
exactly
exactly
……but other countries like UK, continued to accumulate evidence of the abundant medical aid that cloning could provide.
accumulate Vt 积累
He accumulated fortune by working hard.
即时练习： The purpose of education is not
just （积累）information.
课文原句
accumulating
But at last the determination and patience of the scientists paid off in 1996 with a breakthrough---the cloning of Dolly the sheep.
pay off