题目内容
6．As a child，I loved the natural world．Maybe it had something to do with growing up in a small town．Maybe it was because nature had so many secrets and I was thrilled to be a detective，uncovering them one by one．I'm sure that when people from my generation think back to their childhoods，many recall a tree house，family picnics，or a passion for fishing，hunting，or horseback riding．Most of us had an occasional appetite for dirt as we explored backyards and nearby vacant lots．As someone who grew up in such a world，I enthusiastically encourage parents to bring back that happy childhood pastime of letting kids get muddy once in a while．
I have more than my own experience to show as evidence that this is a good thing：Study after study indicates that children grow up healthier and happier when they experience a direct connection to nature．Just as importantly，those young people are also far more likely to value the natural world when they've developed a connection to it．The need for thishas never been greater than it is today．
Our natural world is extraordinary in its diversity and complexity，but it's also under tremendous threat．In the past decade，countless tropical rainforests and coral reefs have been lost forever due to human activities，and many more are critically endangered．These areas don't just house animals and plants found nowhere else on the planet； they also provide important economic services that benefit human health．Streams make fresh water clean； forests reduce flooding； tree provide medicines and insects pollinate （给…授粉） crops．The natural world represents an economic backbone for the future of local communities by promoting tourism and local people's livelihoods．
The damage to the earth's living systems is fast approaching irreversible （不可逆转的）"tipping points，"and although we now have a wealth of technological tools-both to understand the threats and to assist with solutions-there's still no substitute for a connection to the real world when it comes to understanding the complexity of natural systems．
Besides，establishing a connection between child and nature is one of the best and simplest ways to inspire young people to make good decisions about personal health，climate change，and sustainable （可持续的） use of natural resources．They need to know what affects the chemistry of the ocean，why tropical rain forests are critical to life in the temperate regions and how millions of years are required to create fossil oil from dead plants．This understanding becomes realest and most meaningful when a person is connected to the natural world．
46．What does the underlined word"this"in Paragraph 3 refer to？C
A．Children developing a connection to the nature．
B．Children growing up healthily and happily．
C．Children valuing the natural world．
D．Children studying and studying．
47．Insects are mentioned in Paragraph 4 to show thatA．
A．humans benefit from nature
B．humans benefit nature in many ways
C．some insects are dangerous to humans
D．some insects are in danger of extinction
48．What can we learn from Paragraph 5？D
A．It is impossible to improve the environment．
B．Natural systems are too complex to understand．
C．Technology can help humans improve the environment．
D．Kids cannot know about the nature without experiencing it．
49．The author writes the passage mainly toD．
A．describe her childhood to the readers
B．encourage readers to protect the nature
C．stress the importance of natural science
D．advise parents to let kids experience nature．
分析 本文主要是讲人与自然的关系及让孩子们更多的去体验大自然．
解答 46--49 CADD
46．C 根据Just as importantly，those young people are also far more likely to value the natural world when they've developed a connection to it．The need for thishas never been greater than it is today．可知，此处this指的是孩子们对自然世界的重视，故答案为C
47．A 根据they also provide important economic services that benefit human health．可知，提到昆虫是因为人类从自然中收益很多，故答案为A
48．D 根据there's still no substitute for a connection to the real world when it comes to understanding the complexity of natural systems．可知，孩子们不亲身体验一下是不能真正了解大自然的，故答案为D
49．D 根据最后一段 Besides，establishing a connection between child and nature is one of the best and simplest ways to inspire young people to make good decisions about personal health…This understanding becomes realest and most meaningful when a person is connected to the natural world．可以得知，本文主要是讲人与自然的关系及让孩子们更多的去体验大自然，故答案为D
点评 阅读理解题测试考生在阅读基础上的逻辑推理能力，要求考生根据文章所述事件的逻辑关系，对未说明的趋势或结局作出合理的推断；或根据作者所阐述的观点理论，对文章未涉及的现象、事例给以解释．考生首先要仔细阅读短文，完整了解信息，准确把握作者观点．
