Задания 3-9
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Presenter: Our program about extreme sports is on and today we’re going to learn about scuba diving. Our expert is Barbara Green who owns a diving school.
Barbara: Hello everybody.
Presenter: Barbara, what’s the difference between diving and scuba diving?
Barbara: The word scuba stands for a self-contained underwater breathing apparatus. That’s the basic difference. Knowing how to scuba dive opens up an entire underwater world of corral, fish and other creatures. You can even say hello to a shark! That’s a joke, though.
Presenter: People say once you’ve tried scuba diving you’ll never forget it. Is that true?
Barbara: Imagine swimming in clear blue waters as you look at brightly colored fish and striking shapes of coral organisms. The underwater world is quite, except the sound of your breathing. Can you ever forget it? Would you like to go back and see it again?
Presenter: I guess that’s the answer to my question. I heard scuba diving needs a lot of… stuff and can be expensive.
Barbara: Scuba diving requires several pieces of important equipment which can be relatively expensive. Scuba-divers must wear a mask in order to see underwater. The mask creates an air space that protects the eyes and nose. Divers wears scuba fins on their feet. Without them it’s impossible to move easily and quickly through the water. Many divers also wear a wet suit to stay warm underwater.
Presenter: Is scuba diving dangerous?
Barbara: Basically, no. But the ocean demands respect. Divers wear a BCD or buoyancy control devise to control how much they float or sink. A pressure gage devise tells divers how much air is left in the air tank. Or a dive computer can calculate how much air is left as well as the diver’s depth and the length of time they can stay underwater. Scuba divers breathe with the regulator which brings air to the mouth when they inhale. The regulator is attached to an air tank that is placed on the diver’s back. There is also an extra regulator called an octopus. It’s used in case of the emergency situations.
Presenter: I know decompression sickness is a great problem for divers.
Barbara: You are right. It is a major concern for divers. The deeper a diver goes, the more pressure the surrounding water puts on the volume of the air inside his or her lungs. And the deeper a dive the more nitrogen gas goes into the diver’s blood.
Presenter: Do you teach it in your school?
Barbara: Of course. To learn how to use all this equipment it helps to go to dive school. Becoming a certified diver requires thee series of lessons. New divers must learn about the physics and safety of diving. And practice the diving skills first in the closed water area and then on actual beginner dives. Several organizations offer official diving certifications.
Presenter: Do people dive alone, apart from the instructor?
Barbara: Another important aspect to diving is having a buddy system. Having a diving partner you can watch over one another and help if there is an accident.
Presenter: Any final comment from you?
Barbara: One important diving rule is to never touch any of the sea life. This rule is to protect both the diver and the underwater environment. For example, there is a reason fire coral received its name – it causes a painful burning feeling if touched. A diver could also be cut by touching a sharp piece of coral. It may seem hard like stone, but it’s actually a very fragile organism. It can be damaged if divers touch or stand on it. To protect the beautiful coral reefs divers must treat them with care. Sorry to say, tourists often forget about that.
Presenter: Thank you.
Ответы
3) Which of the following is TRUE about scuba diving?
2) It involves use of special breathing equipment.
4) Which of the following is NOT true about scuba diving?
3) You can hear a lot of sea sounds.
5) Which part of a diver’s equipment is NOT absolutely necessary?
1) Wetsuit.
6) A buoyancy control device helps the diver to …
2) control distance and depth.
7) According to Barbara, why is it better to go to a dive school?
2) You learn more about safety underwater.
8) What is the purpose of the ‘buddy’ system in diving?
3) Not to be alone in a difficult situation.
9) According to Barbara, what should a diver do?
3) Avoid contact with sea life.
