八、阅读表达(共5小题,计10分)
Twenty years ago in Costa Rica, three girls found a baby sloth (树懒) on a road. The little animal's mother was killed by a car. These girls took the baby sloth to Judy, the owner of a hotel. Judy wanted to help, but she didn't know how to look after the sloth, so she called the zoo. With the help of the zoo, Judy took good care of the baby sloth. She named the baby sloth Buttercup.
After her first success, more people brought Judy wounded (受伤的) sloths or baby sloths they found. Judy then opened a help center. Today, the help center has saved more than 500 sloths.
Sloths mainly live in the forests of Central America. We can also see some in South America. They hang onto the trees with their claws (爪). There are two main types of sloths. You can know them by the number of their claws. Sloths hardly move. They spend most of their time sleeping in the trees.
But now, with the increase of population, human beings cause a lot of problems for these slow and quiet animals. The main problem is that the forests are becoming smaller and smaller. When trees are cut down, sloths will fall and hurt themselves. Some sloths live near human beings and they sometimes are hit by cars or killed by dogs.
1. How many sloths has the help center saved?

2. Where do sloths mainly live?

3. What is the main problem for sloths?

4. 将文中画线句子翻译成汉语。

5. 给短文拟一个恰当的英文标题。