12．（6分）Every year，tens of thousands of kids aged 3 to 13 become Junior Rangers in different national parks across America.At Yosemite alone，more than 20，000 kids take part in the Yosemite Junior Ranger Program.If you want to be a Junior Ranger，you need to learn about the natural and cultural history .and make a promise to be a national park protector.
Here Is How YOU Can Become a Junior Ranger!
Earn yourself an official Junior Ranger Badge!You could become a Yosemite's Junior Ranger today by completing the following steps：
• Buy your Junior Ranger Handbook in the nearest Visitor Center.
• Complete the pages in the handbook.
• Pick up rubbish.
• Attend a Guided Program.
• Return your completed handbook and a bag of rubbish to the Visitor Center.
• Make your official Junior Ranger Promise at a ceremony.
• Get your official Junior Ranger Badge.
After you become a Junior Ranger，you are encouraged to share your ranger stories with your friends，teachers and families.
（1）Who can become Junior Rangers？ A
A.Children.
B.Parents.
C.Teachers.
D.Officers.
（2）What should Junior Rangers promise to do？ D
A.Read the handbook.
B.Learn American history.
C.Share ranger stories.
D.Protect the national parks.
（3）Before getting Yosemite's Junior Ranger Badges，they should complete C .
A.four steps
B.five steps
C.six steps
D.seven steps
【分析】文章讲了每年，美国各地都有数万名3岁到13岁的孩子在不同的国家公园里成为初级护林员。如果你想成为一名初级护林员，你需要了解自然和文化历史，并承诺成为一个国家公园保护者。以及你如何成为一名初级护林员！如何为自己赢得一个官方的初级游骑兵徽章！
【解答】（1）A.细节理解题。根据Every year，tens of thousands of kids aged 3 to 13 become Junior Rangers in different national parks across America.可知，每年，美国各地都有数万名3岁到13岁的孩子在不同的国家公园里成为初级护林员。所以儿童能成为护林员。故选A.
（2）D.细节理解题。根据If you want to be a Junior Ranger，you need to learn about the natural and cultural history .and make a promise to be a national park protector.可知，如果你想成为一名初级护林员，你需要了解自然和文化历史，并承诺成为一个国家公园保护者。所以初级护林员应该承诺保护国家公园。故选D.
（3）C.总结归纳题。根据You could become a Yosemite's Junior Ranger today by completing the following steps：• Buy your Junior Ranger Handbook in the nearest Visitor Center.• Complete the pages in the handbook.• Pick up rubbish.• Attend a Guided Program.• Return your completed handbook and a bag of rubbish to the Visitor Center.• Make your official Junior Ranger Promise at a ceremony.• Get your official Junior Ranger Badge.可知，通过完成以下步骤，您可以成为约塞米蒂的初级护林员：•在最近的游客中心购买初级护林员手册。•完成手册中的页面。•捡垃圾。•参加指导课程。•将已完成的手册和一袋垃圾送回游客中心。•在仪式上做出正式的初级护林员承诺。•获得你的官方初级护林员徽章。所以在获得约塞米蒂的初级护林员徽章之前，他们应该完成六步。故选C.
【点评】首先要通读全文，了解文章大意，紧紧抓住上下文语境所提供的信息，然后明确词意，结合排除法逐一选出答案，最后再通读全文核对答案。
