Tsunami

The term of “tsunami” comes from the Japanese which means harbour ("tsu") and wave ("nami"). A tsunami is a series of waves generated when water in a lake or a sea is rapidly displaced on a massive scale.

A tsunami can be generated when the sea floor abruptly deforms
and vertically displaces the overlying water. Such large vertical movements of the earth's crust can occur at plate boundaries.

Subduction of earthquakes are particularly effective in generating tsunami, and occur where denser oceanic plates slip under continental plates.

As the displaced water mass moves under the influence of gravity to regain its equilibrium, it radiates across the ocean like ripples on a pond.

Tsunami always bring great damage. Most of the damage is caused by the huge mass of water behind the initial wave front, as the height of the sea keeps rising fast and floods powerfully into the coastal area.

(Aceh tsunami 2004)

GERUND AND TO INFINITIVES

GERUND

1. His hobby,play football,takes a lot of time
2. we listening to you, bro
3. I saw him walking on the street
4. I prefer eating rather than playing football
5. It is worth writing the book
6. This country government doesn't permit hunting without a hunting license.
7. He appreciated our helping him prepare for the garden party.
8. Going skydiving tomorrow will test how brave you are.
9. You've been playing that game non-stop for over 8 hours!
10. Our arriving late would be an insult to our hosts.

TO INFINITIVES

1.     They were careful not to reveal the winner of the prize until the end.
2.     The student was content to receive second place in the competition.
3.     The mountain climber is liable to hurt himself if he doesn't use well-made    equipment.
4.     She was surprised to discover that he had never learned how to swim.
5.     The witness was reluctant to reveal what he had seen.
6.      I asked my brother to wait for him
7.      It’s nice to meet you
8.      It’s hard to imagine how beautiful you are
9.      To do the task you must do something first
10.    It’s always easier to learn something than to use what you’ve learned

IF CLAUSE

IF CLAUSE

1. If i can study abroad, i will go to Russia
        If i could study abroad, i would go to Russia
        If i could have studied abroad, i would have gone to Russia

2. You will be rich if you work harder.
         You would be rich if you worked harder.
         You would have been rich if you had worked harder.

3. If someone give me a present, i will be very thankful
        If someone gave me a present, i would be very thankful
        If someone had given me a present, i would have been very thankful

4. I will study english everyday if my english grades are bad
        I would study english everyday if my english grades were bad
        I would have studied english everyday if my english grades had been bad

5. If i get a million dollar, i will give some money to you
        If i got a million dollar, i would gave some money to you
        If i had got a million dollar, i would have given some money to you

6. I’ll be sad if i can’t pass the test
        I would be sad if i couldn’t have passed the test
        I’d have been sad if i couldn’t have passed the test

7. If I become a teacher I won't give a lot of tasks.
         If I was a teacher I wouldn't give a lot of tasks.
        If I had been a teacher I wouldn't have given a lot of tasks.

8. I will be very happy if my school holiday task is finished
        I'd be very happy if my school holiday task was finished
        I'd have been very happy if my school holiday task had been finished

9. If I go to Las Vegas I will do anything I want.
        If I were to go to Las Vegas I would do anything I want.
        If I had been to Las Vegas I would have done anything I'd wanted. 

10. I'll go to your heart if you allow me.
        I'd go to your heart if you allowed me.
        I'd have gone to your heart if you had allowed me.