以及第二段中的I needed to change my ways可知，作者认为自己的教育方法是不可取的。

2．How do children react when learning about environmental problems?

A．They tend to ignore the problems.

B．They become scared of nature.

C．They hate to learn natural science.

D．They want to help solve the problems.

B　解析：细节理解题。根据第二段中的Kids develop the fear...bad news about the environment.可知，让孩子们了解了环境问题会导致他们对大自然产生恐惧。

3．The author mentions the research in order to show________．

A．how to have a happy childhood

B．what the best way to get close to nature is

C．how to change children's bad behavior

D．what makes children care about the environment

D　解析：细节理解题。根据第二段中的She wanted to know what...environmental citizens.可知，该研究主要解释了是什么影响了孩子，让他们长大后为保护环境出一份力。

4．What is mainly discussed in the passage?

A．The harm of hunting animals.

B．The causes of environmental problems.

C．The importance of encouraging kids to protect nature.

D．The right methods of developing children's idea of nature.

D　解析：主旨大意题。本文主要阐述了教育和环境保护之间的关系，作者通过实例论述了一个道理：让孩子拥有环保思想的正确教育方式不是让他们感到害怕，而是让他们心中充满对大自然的爱。

　　Death Valley is one of the most famous deserts in the United States，covering a wide area with its alkali(碱) sand.Almost 20 percent of this area is well below sea level，and Badwater，a salt water pool，is about 280 feet below sea level and the lowest point in the United States.

Long ago the Panamint Indians called this place "Tomesha"-the land of fire.Death Valley's present name dates back to 1849，when a group of miners coming across from Nevada became lost in its unpleasantness and hugeness and their adventure turned out to be a sad story.Today Death Valley has been declared a National Monument(纪念碑) and is crossed by several