5.- Tabla de conjugación & 5 ejemplos

presente:

I have played	yo he jugado
you have played	tú has jugado
he has played	él ha jugado
we have played	nosotros hemos jugado
you have played	vosotros habéis jugado
they have played	ellos han jugado

pasado:

I was playing

You were playing

He was playing

She was playing

It was playing 

pasado simple:

She washed the car 

Mary cooked chicken yesterday

your girlfriend called yesterday

I waited and waited

He rushed out of the office 

 

Presente perfecto:

I´ve talked to peter

She´s gone to work

We´ve been to Londor 

They´ve learned english 

I haven´t talked to peter

 4.- presentación de un tema de la especialidad.

"CNC"

Modern CNC mills differ little in concept from the original model built at MIT in 1952. Mills typically consist of a table that moves in the X and Y axes, and a tool spindle that moves in the Z (depth). The position of the tool is driven by motors through a series of step-down gears in order to provide highly accurate movements, or in modern designs, direct-drive stepper motor or servo motors. Open-loop control works as long as the forces are kept small enough and speeds are not too great. On commercial metalworking machines closed loop controls are standard and required in order to provide the accuracy, speed, and repeatability demanded.

As the controller hardware evolved, the mills themselves also evolved. One change has been to enclose the entire mechanism in a large box as a safety measure, often with additional safety interlocks to ensure the operator is far enough from the working piece for safe operation. Most new CNC systems built today are completely electronically controlled.

3.- presentación de un producto

Pepsi

 is a carbonated soft drink that is produced and manufactured by PepsiCo. Created and developed in 1893 and introduced as Brad's Drink, it was renamed as Pepsi-Cola on August 28, 1898, then to Pepsi in 1961, and in select areas of North America, "Pepsi-Cola Made with Real Sugar" as of 2014.

2.- lugar turístico del "mundo".

Mictlán

At the Mexica mythology Mictlan coming all the dead, regardless of social position , ie , the bulk of the population , provided they passed away from causes considered " natural " .
As with other aspects of the Mesoamerican religion , our knowledge of the Mictlan come mostly from colonial sources and interpretations that various religious sixteenth century made on it. In that way it has been equated with the Judeo Christian Hell. However, the main feature of Hell, the punishment for sin , appears to be absent in Mictlan .

1.- sitio turístico de la ciudad.

"museo del mamut"

Located in the city center , in front of Plaza of the Republic , it's claw in Exhibits More Important paleontological field region . Taking bath 7 dinosaurs do , including the first hadrosaur skeleton conditioning pasture Genuine Parts in the Country and has been on display since the founding of the museum.

In their information they can Enclosures FIND A Collection of fossilized snails, fish , plants , Dinosaur skeletons of the State of Chihuahua, mammoth one , Gray Whale One Among Other copies , each accompanied PART Of A brief explanation and Easy Understanding ; Plus a small gift shop.

Also curated RESTORATION Specializing in the paleontological and Rescue Rooms in the region, with 100 % Chihuahua Any personal and national.