从方框中选择恰当的句 从方框中选择恰当的句子完成下面的对话. A:The south tigers may become
从方框中选择恰当的句
| 从方框中选择恰当的句子完成下面的对话. | |
| A:The south tigers may become extinct (灭绝的) within 30 to 50 years if it does not receive protection. B:1______ A:There are 20 to 30 South China tigers.Guangdong Province has only five left because forests are being destroyed. B:2______ A:The life span of the South China tiger is 20 to 25 years,but the tigers breed (繁殖) and the survival rate (成活率 for cubs (小虎) is poor. B:Why not clone (克隆) the tiger? A:It's not that easy.3______ B:What would happen in the future? A:Well,I'm afraid we may not have this kind of animal at all in the 21st century without hard work and help from the scientists. B:4______ A:Yes.I hear that the scientists are trying there best to save the tigers,including (包括) the Northeast tigers. B:5______ A:I think so.
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