题目内容

9．在中国，科学家则把精力集中在克隆动物以及干细胞上．
In China，scientists havefocused/concentrated their effortson cloning animals，as well as cloned tissues．

分析 在中国，科学家则把精力集中在克隆动物以及干细胞上．

解答 答案：focused/concentrated；on
解析：根据中文及所给英文题干可知，本题考查focus/concentrate one's effort（s）on doing sth"集中精力做某事"这一固定短语；另外根据have可知本句为现在完成时．综上，本题答案为：focused/concentrated；on．

点评 本题考查句子翻译，做此类题目时一定要根据中文及英文题干确定需要翻译的成分，再找出与之对应的英文并考虑各成分是否有形式的改变．

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33．What's the author's purpose to mention the Swiss study？C．
A．the weight of e-goods is rather small
B．natural minerals contain more precious metals
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D．the percentage of precious metals is heavy in e-waste
34．The responsibility of e-waste treatment should be extendedD．
A．from producers to governments      
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C．from individuals to distributors      
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A．how to increase e-waste．
B．how to manage e-waste．
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D．how serious the e-waste is．
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3．（39）B
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提示词：放大镜magnifying glass．
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