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Some humans consider mulberry trees( 桑 树...

    Some humans consider mulberry trees( )little more than oversize weeds. the giraffe Stella loves them. Her long, gray tongue snakes around the leaves and gets them from their branches beautifully.

Stella’s mother, Abby, comes over for her share. The Philadelphia Zoo’s two female giraffes consume about a pound of leaves in mere minutes. Fortunately, the zoo has plenty, thanks in part to an unusual source: the local power company.

Utility( )companies routinely cut back trees. They want to keep branches from damaging power lines and causing power failures. Usually the branches end up in landfills. But in recent years, a growing number of energy providers have begun donating them to zoos. Hungry zoo animals are happy to eat the green, leafy tree branches known as “browse”

Browse partnerships between zoos and power companies are one example of the creative and sometimes unexpected ways zoos work with local organizations to meet animals’ particular-and often huge-dietary needs. Store chains and restaurants sell or donate greens, fruits and vegetables to zoos. Local landowners also provide plant material. But utility companies are in a special position. They need to regularly cut back branches. And they have no use for these branches themselves.

PECO Energy Co. Is Pennsylvania’s largest electric and natural gas utility. From August through October, the company delivered three pickup trucks full of browse every week to the Philadelphia Zoo. The weekly browse delivery totaled between 100 and 200 pounds.

“Zoos require a lot of browse because it’s such an important part of many animals’ diets. Of the Philadelphia Zoo’s 330 species, 40 eat it. Browse has it all: fiber, protein, vitamins, minerals and a little fat. It’s also lower in sugar and higher in protein and fiber than some other plant material, ”said Toddes, the Zoo’s director. “Chewing on the bark is even good for animals’ teeth.”

What’s more, browse provides animals with important exercise, she said. In the wild, giraffes eat the tops of trees. So zoo staff hang browse up high to simulate(模拟)their native environment. This also gives visitors a better idea of the animals’ natural behavior.

1.What can be learned about Stella and her mother?

A.They are big eaters B.They don’t like oversize weeds

C.They have difficulty reaching leaves D.They live in a local power company

2.Why do utility companies cut back trees?

A.To beautify the tree B.To use them to produce power

C.To provide food for zoo animals D.To keep power lines working normally.

3.In what way are browse partnerships between zoos and power companies special?

A.The donations are for large animals B.The donations come from landfills

C.The donations are given routinely D.The donations contain fruits and vegetables.

4.What did Toddes say about PECO’s browse?

A.It has great nutritional value. B.It doesn’t require strong teeth

C.It’s more than what the animals can eat. D.It’s suitable for most of the zoo’s species.

5.Why do zoo staff hang browse up high?

A.To give visitors a better view.

B.To get the giraffes moving a lot.

C.To prevent other animals stealing giraffes’ food

D.To get the giraffes out of their native environment.

 

1.A 2.D 3.C 4.A 5.B 【解析】 这是一篇说明文。这篇文章主要说明了电力公司将维护线路过程中修剪的树枝收集起来并定期捐给动物园。为了防止树枝对线路造成威胁,影响供电,电力公司修剪枝叶。收集起来的树枝定期捐给动物园。动物园需要大量的枝叶,因为它是许多动物饮食的重要组成部分。 1. 2. 3. 4. 5.
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