三、还原信息
The undersea world is very beautiful. Now more and more people want to dive in the water to find the secret there. Scuba-diving (戴水肺潜水) is a new sport today. (1)
You will find many strange animals in the sea. (2)Some sea animals give out light in the dark. And others have sharp teeth.
During the day, there is enough light. Here, under the sea, everything is blue and green. When fish swim nearby, you can watch them closely. When you have bottles of air on your back, you can stay in deep water for a long time. (3)And you must be very careful when you dive in deep water.
The deep sea is not an easy place to live in. It's cold, and it's dark too. The deeper it is, the less sunlight there is. About 3 000 feet underwater, there is no light at all. It is very dark in the sea. Many fish have no eyes. Some have big eyes. A few have eyes on one side.
(4)Animals eat! They must find food to eat. Many animals eat plants. However, some animals eat meat. This means these sea animals have two big jobs. They need to find animals as food, and they also have to try not to become other animals' meal.

三、1.D 2.C 3.B 4.F

四、综合填空
My best friend Ally and I spend a few hours every week as volunteers for Buddy Ball. It is a programme that helps disabled kids do sports and make new friends.
So what does a buddy do? At the moment, I am a buddy for (1) eleven-year-old boy called Tom. He is in a wheelchair and is a good basketball player, but just like any kid, it makes (2) (he) upset (难过) when he misses a shot or makes a bad pass. He starts to cry and doesn't want to play. Sometimes he even wants to give up. So, (3) his buddy, I encourage him. Now we're working on our basketball skills together. It is great to see him (4) (improve) and he doesn't get upset so (5) (easy).
Ally is a buddy for Clara, a kid with very few language skills. She is also a bit wild! She likes running away. Ally has learned how (6) (work) with Clara and to get her to join the games. Now she loves baseball and has more friends. Next week she's playing in a team. Her parents are (7) (real) happy about Buddy Ball and they say that Clara has become more confident and sociable since she (8) (join) Buddy Ball.
Buddy Ball is a great chance for everyone! (9) (different) disappear (消失) and we realize that we're all just kids loving sports. I love volunteering for Buddy Ball (10) I know I'm doing something meaningful!

四、1. an 2. him 3. as 4. improve 5. easily
6. to work 7. really 8. joined 9. Differences 10. because