阅读下面这篇短文，短文后有2项测试任务：（1）第23～26题要求从所给的6个选项中为第1～4段每段选择1个正确的小标题；（2）第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。
Earth Angels
1 Joying Brescia was 8 years old when she noticed that cigarette butts （烟头） were littering her hometown beach in Isle of Palms， South Carolina. When she learned that it takes five years for the remains of a cigarette to disintegrate， she decided to take action. Joying launched a “No Butts on the Beach” campaign. She raised money and awareness about the need to keep the beaches clean. With the help of others， Joying also bought or received donations of gallonsize plastic icecream buckets. The buckets were filled with sand， and placed at all publicaccess areas of the beach. The buckets allowed people to dispose of their cigarettes before hitting the beach. Two years later， Joying says the buckets are full and the beach in nearly free of cigarette debris （残片）。
2 People who live in or visit Steamboat Springs， Colorado， have Carter Dunham to thank for a new state wildlife refuge that preserves 20 acres of marshland and many species of wildlife. Carter and other students wrote a management plan for the area around the Yampa River. The plan was part of a class project when Carter was a freshman at Steamboat Springs High School. Working with the Colorado Division of Wildlife， Carter and his classmates mapped the area and species of animals living there. They also made decisions about， among other things， where fences and parking areas should be built.
3 Barbara Brown and her friends collect oil. It started as a project for their 4H Club after one of the girls noticed her father using motor oil to kill weeds on their farm in Victoria， Texas. They did some research and discovered that oil can contaminate ground water—a real danger in rural areas， where people live off the water on their land. The girls researched ways to recycle oil and worked with a local oilrecycling company on the issue. Now， the “Dont Be Crude”pr rogram runs oil collection sites—tanks that hold up to 460 gallons—where people in the community can dispose of their oil.
4 Five years ago， 11yearold Ryan Hreljac was a little boy with a big dream： for all the people in Africa to have clean drinking water. His dream began in the first grade when he learned that people were dying because they didnt have clean water， and that as little as $70 could build a well. “We really take water for granted，”says Ryan， of Kemptville， Ontario， in Canada. “In other countries， you have to plan for it.”Ryan earned the first $70 by doing extra chores （零工），but with the help of others， he has since raised hundreds of thousands of dollars. His efforts led to the start of the Ryans Well Foundation， which raises money for clean water and healthrelated services for people in African countries and developing countries.
A Provide Clean Water
B Dig Oil Wells
C Save Clean Water
D Don’t Litter
E Don’t Be Crude
F Protect Wildlife
23 Paragraph 1
24 Paragraph 2
25 Paragraph 3
26 Paragraph 4
27 Joying placed the buckets at all publicaccess areas to 。
28 People are grateful to Carter Dunham for his efforts to 。
29 Disposed oil and many other items can be reused to 。
30 Ryan， with the help of others， is fulfilling his dream of help African people to 。
A make new materials
B preserve wetland and animals
C have clean air
D have clean water
E collect cigarette butts
F collect disposed oil
23.D24.F25.E26.A27.E28.B29.A30.D
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