2. 外语
  3. Pollution is a big problem in almost all the big cities of the world. City people are,【11】, becoming more and more worried about

Pollution is a big problem in almost all the big cities of the world. City people are,【11】, becoming more and more worried about

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问题    Pollution is a big problem in almost all the big cities of the world. City people are,【11】, becoming more and more worried about how they can get rid of pollution. They are also【12】about whether the government is doing enough to protect the environment. However, people in Ireland don’t have these【13】They are sure that they have found the answer to the problem. They use windmills. These windmills can【14】power with out creating pollution. This method is so successful that other countries are【15】doing the same. Why not? What works for Ireland can work for any other country.
Pollution is a big problem in almost all the big cities of the world. City people are, therefore, becoming more and more worried about how they can get rid of pollution. They are also concerned about whether the government is doing enough to protect the environment. However, people in Ireland don’t have these worries They are sure that they have found the answer to the problem. They use windmills. These windmills can create power with out creating pollution. This method is so successful that other countries are thinking of doing the same. Why not? What works for Ireland can work for any other country.
选项
答案therefore
解析 空格前后都有逗号，猜测此处可能需要一个连词。文章开头就提出污染已成为世界上几乎所有大城市的一个大问题，接着指出人们越来越担心该如何消除污染。显然两 句之间存在因果关系，所以结合录音填入表示因果关系的连词therefore。
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