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人教2003课标版《Using LanguageⅠ》PPT课件优质课下载
be brought back to life through cloning. Unfortunately, with
what we know now, this is either impossible or unsuitable.
Here are the reasons：
Firstly,
Secondly,
Finally,
So I think, based on what we know now, you cannot
. It is merely a dream.
dead person
human egg cells and embryos needed for cloning research are difficult to obtain.
some evil people may hope to clone themselves to attain their ambitions.
it may cause moral questions.
clone human beings
Do you think it possible for people to
clone a dinosaur ? Why ?
What is the writer’s attitude towards
cloning the dinosaurs?
A. Supportive.
B. Neutral (中立的).
C. Negative (否定的).
D. Subjective(主观的).
objective客观的,
positive肯定的
impartial 公平的
arbitrary武断的