74.[标准答案]D。

[试题解析]从文章第三段的语句Wilson suggests changing this situation by looking into ten thousand species that could be made use of, which will be a way to reduce the clearing of the natural homes of plants and animals to enlarge farming areas.可知Wilson建议保持地球生物多样性的方法之一就是寻求更多的可以利用的物种。

[高考考点]细节理解题。

73.[标准答案]。

[试题解析]从文章第三段的语句A mere hundred species(物种) are the basis of our food supply, of which but twenty carry the load.对我们的事物供给的物种最重要的有20种。[高考考点]细节理解题。

72.[标准答案]B。

[试题解析]推理判断题.

[高考考点]文章第一段Edward Wilson的书The Future of Life不仅让我们对资源的来龙去脉有一个很好地了解,而且指出“我们有必要对地球的生物多样性有一个充分的了解。”第三段的语句Biodiversity, Wilson argues, is the key to settling many problems the earth faces today.也说明了Biodiversity是解决地球面临许多问题的关键。故选B项。

71.[标准答案]D。

[试题解析]在第二节中的语句The beginners’ costs are ￡57 for a week, including food and rooms. Equipment is included except walking shoes, which can be hired at a low cost.可知75英镑中不包含鞋的价格，游客可以自己很便宜地租借到。

[高考考点]细节理解题。

70．[标准答案]B。

[试题解析]从第三节中的语句Instead of one hotel after another, with all its packing and unpacking waiting and traveling, you just go to bed in one country and wake up in another.可知可以睡在船上游览很多地方。

[高考考点]细节判断题。

69.[标准答案]C。

[试题解析]通过三个地方所能提供的活动内容对比，就可知Snowdonia Centre 可以提供a mountain lesson。

[高考考点]细节判断题。

68.[标准答案]A。

[试题解析]从文章第一节的语句Children and pets are welcome.可知在Devon，人们可带自己的宠物去度假。其余三节中均未提及pet一词。

[高考考点]细节理解题。

67．[标准答案]D。

[试题解析]从文章第一段最后一句The advice provided below will help make sure that the fish you release will survive (存活) to bite again another day.(中心句)及文章最后一段的总结句With a little care and by following the suggestions given above, you can give the released fish a better chance of survival.可知写这篇文章的目的是就如何放养钓到的小鱼，使他们的成活率更高提出了一些建议。

[高考考点]推测作者的写作意图题。

66.[标准答案]A。

[试题解析]从第四条建议Release the fish when it begins to struggle and is able to swim.可知答案，其余三种情况都是错误的做法。

[高考考点]细节判断题。