project ____________________.

　　许多人认为不会得到许可，也有一些人认为这项工程本来就不该被允许。

　　5．Rivers，lakes and wet­lands are sources of fresh water ________________ for humans，________________ for wildlife as well.

　　河流、湖泊和湿地不仅是人类也是野生生物的淡水来源。

　　【答案】　1.with half of this increase occurring 2．Without these naturally occurring gases　3.Given this data　4.should never have been allowed　5.not only；but

　　Ⅳ.回顾话题

　　尽可能用本单元的词汇和句式完成下列写作任务。

　　在一个小山村，有一位老人靠农业为生。考虑到他的年龄，他本不应该再这样生活了。但是他唯一的儿子被强盗掠走了，那使得他与儿子不得不分离，但他还要继续生活。

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　　【参考范文】

　　There was an old man in a mountain village who earned his living by agriculture.Given his age he should not have lived like this but his only son was carried off by a robber，which made him separated from his son.However，he carried on living for his future.