Tipos de tablas de snowboard

From the first crudely built snowboards to the advanced and specialized models available today, snowboarders have carried a bad boy image. This rebel reputation is still common today in spite of the fact that snowboarding appeals to men, women, and children of all nationalities an social groups. At most major ski resorts you can find snowboarding gear, information, and lessons. Olympic and world wide snowboarding events are among the most popular of winter sports and the competition to be the best is fierce.

Retailers nationwide and around the world carry many types of snowboards, and the choice in specially made snowboarding gear is immense. Snowboarders have participated in the X Games an even charity events such as Boarding for Breast Cancer. From is early meager beginnings snowboarding has progressed into a fully recognized sport , and large numbers of people are turning to snowboarding for adventure, fun, and professional recognition.

Keith Kingston is a professional web publisher offering information on snowboards, skiing, ski vacations, snow removal and snowmobiles at all-4-snow.com

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In British English, the use of Simple Past and Present Perfect is quite strict. As soon a time expression in the past is given, you have to use Simple Past. If there are no signal words, you must decide if we just talk about an action in the past or if its consequence in the present is important.

Note that the following explanations and exercises refer to British English only. In American English, you can normally use Simple Past instead of Present Perfect. We cannot accept this in our exercises, however, as this would lead to confusions amongst those who have to learn the differences.

Certain time in the past or just I already I yet ?

Do you want to express that an action happened at a certain time in the past (even if it was just a few seconds ago) ar that an action has just I already I not yet happened?

Certain time in the past

Example: I phoned Mary 2 minutes ago.

Just I already I not yet

Example: I have just phoned Mary

Certain event in the past or how often so far?

Do you want to express when a certain action took place or whether I hoe often an action has happened till now?

Certain event in the past

Example: HE went to Canada last summer

Whether / how often till now

Example: have you ever been to Canada? / I have been to Canada twice.

Emphasis on action or result ?

Do you just want to express what happened in the past? Or do you want to emphasize the result(a past action’s consequence in the present)?

Emphasis on action

Example : I bought a new bike. ( just telling what I did in the past.)

Emphasis on result

Example: I have bought a new bike. (With this sentence I actually

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