In my personal opinion, I'm sure that we know only a minimum part of our seas and oceans which are essential for the Planet life . We must take care of our seas to preserve the Earth!
Let's go and know more about these brave "divers".
Hola mis queridos amigos, una vez más aquí estoy. Hoy hablaremos de los "submarinistas". Nuestros océanos son maravillosos y la gente que es capaz de bucear y ponerse en contacto con la vida marina, yo creo que es especial. En mi opinión personal, estoy segura de que sabemos solo una mínima parte acerca de nuestros mares y océanos, los cuales son básicos para la vida del Planeta. ¡Debemos cuidar nuestros mares para conservar la Tierra!
¡Vamos a saber más sobre estos valientes submarinistas!
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| photo of my own |
D I V E R S
For thousands of years men have lived under water to look for shells and fish. About 2,300 years ago men were using breathing tubes to stay under the water for a long time. Without a tube. most people can stay under water not more than two minutes.
Today, on any beach, you can see people using breathing tubes, called "snorkels". They also wear a mask to help them to see better under water. On their feet there are rubber "fins" or "flippers" to help them to swim along easily and quickly.
Using these things anyone can swim along with his head under the water for a long time. When you see something interesting, you can dive down to look at it, and then come to the top again and continue the swim. Perhaps you have done this!
If you want to go deeper into the water, and stay there for a while, you need something more, a tank of air. A diver puts this tank on his back.
Divers have the same face mask and fins but now they are carrying air on their backs. They breath it through a tube. Divers like this are called "scuba-divers".
There are two difficulties, however. The first is that a scubar-diver cannot stay under the water for a very long time. The longest time is about two hours.
The second difficulty is that they can't go very deep. Scuba-divers seldom go as deep as 50 metres- A diver who doesn't carry a tank of air can also go to about 60 metres and can stay there for long periods. The air that they receive is pumped to them through a tube. Also they don't get as cold as a scuba-diver because their suits keep them warm
All divers have to face one big problem -the weight of the water pressing down on them. To go deeper than 60 metres a diver must wear a very strong suit. If he wants to go very deep. he has to go inside a kind of container, a chamber or little submarine. It is very strong but the diver cannot move about.
Some people have gone to the botton of very deep sea in a kind of steel ball called a diving bell and they have seen very strange creatures!
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QUESTIONS
1.- When did divers first begin using breathing tubes?
2.- How long can most people stay under water without a tube?
3.- What is another name for a breathing tube?
4.- What can you do if you are wearing a snorkel tube, flippers and a mask?
5.- What is a scuba-diver?
6.- What are the two problems with scuba-diving?
7.- How do some divers stay under water for a long time?
8.- Why do divers who go very deep need a very strong suit?
SOME ADVICES TO ANSWER QUESTIONS.
-Look at your question well.
-Always anwer in the same tense of the verb of the question.
-It's better to repeat some words from your question and complete.
-Answer correctly.
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ANSWERS
1.- Divers first began using breathing tubes about 2,300 years ago.
2.- People can stay most under water without a tube not more than two minutes.
3.- A breathing tube is also named "snorkel".
4.- I can go scuba-diving.
5.- A scuba-diver is a diver with a tank of air on his back to be able to breathe.
6.- The first problem is that a scuba-diver can't stay for a long time under the water and the second problem is that he cannot go very deep.
7.- Divers can stay under the water for a long time if they don't carry any tank of air and can breathe through a tube connected to them from the surface.
8.- Divers need a very strong suit if they go very deep because it's very cold under the sea.
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HAVE A NICE DIVING!!!
SEE YOU !!!
