The objective of this activity is to practise the comprehension of a written text and write the answers in well-structured and complete sentences.
Read the following text and answer the questions below.
Many people do not really understand how electricity works. They just know that when they need power to run an appliance, they have to plug it into the wall.
Energy comes from charged particles that are moving around. Have you ever rubbed a balloon against your clothes to make it stick? Have you held a balloon or a comb over someone’s head to watch his hair stand up straight? That’s static electricity and electrically charged particles. But these particles don’t do much unless we control their energy.
Static electricity builds up on certain materials. Other materials, though, let electrical charges flow through them. This creates an electric current. Electric current travels very easily through metals like copper, gold, silver and aluminium. Conductors allow electricity to flow through them. Pure water is not conductive. However, since the water from the tap, bath, kitchen sink, etc., contains impurities and dissolved minerals, which allows charge to flow, it will conduct electricity. That’s why electrical charges can travel through people, too. There is water in every cell of a person’s body. Electric current can travel through these cells.
Since metal is a good conductor of electricity, electrical wires are often made out of metal. Wiring can also be made out of non-metal materials, such as graphite.
Conductors have to be enclosed in a material that is an insulator.
Insulators do not allow electric current to pass through them. The rubber coating that you see on electrical cords covers the metal.
The electric current stays inside the cord so we can direct the current to the appliance that needs power. Other good insulators are glass and some plastics.
- The text mentions two good conductors of electricity, could you name them?
- How is static electricity different from electric current?
- Can electric current flow through the human body?
- What are electrical wires often made of?
- In your own words, explain the difference between a conductor and an insulator.
- What is your experience with electricity? Write a short text describing an anecdote, something that happened to you in relation to electrical appliances, when changing a fluorescent or a fuse, manipulating a transistor, etc.
The objective of this activity is to learn how to use an automatic translator to translate an English text and be aware of the possible mistakes implied in the use of such a resource.
Use an automatic translator and translate the following text into Catalan. Then review the text and check if there are any mistakes. Correct them if necessary.
While a computer can, in theory, be made out of almost anything, and mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). Originally, they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs). Modern computers based on integrated circuits are millions to billions of times more capable than the early machines and occupy a fraction of the space. Simple computers are small enough to fit into mobile devices and can be powered by a small battery. Personal computers in their various forms are icons of the Information Age and are what most people think of as “computers”. However, the embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are the most numerous.
The objective of this activity is to learn how to use an automatic translator in order to write an English text and be aware of the possible mistakes implied in the use of such a resource.
Translate the following text into English by means of an automatic translator. Review the English text and then correct any possible mistakes.
L’energia solar tèrmica se sol usar per a escalfar aigua. És molt habitual a hotels, on s’aprofita sobretot per l’aigua utilitzada per a rentar els llençols, tovalloles i estovalles. Els usuaris particular l’usen per al bany, la rentadora, el rentaplats, piscines, etc. A més, també es pot fer passar aquesta aigua calenta per sota del terra per a escalfar-ho, en comptes d’un altre tipus de calefacció.
L’energia solar fotovoltaica s’usa de la mateixa manera que l’electricitat provinent de centrals tèrmiques, nuclears, hidràuliques o de qualsevol altre mena. És possible emmmagatzemar-la durant un cert temps. En moments en els quals el consum d’electricitat és menor que la producció, l’excés es pot vendre a la xarxa, perquè se n’aprofitin altres persones. En canvi, hi haurà moments en què l’obtinguda no és suficient per al que necessitem, llavors cal aportar a més electricitat d’altres fonts, com per exemple la xarxa elèctrica habitual.
The objective of this activity is to practise the answer to yes/no questions, and use the auxiliary verbs appropriately.
Answer these questions about yourself with “yes” or “no”, adding the information that you think is necessary.
- Are you married?
- Have you got any children?
- Are you currently working?
- Have you got your own car?
- Do you speak any foreign languages?
- Have you worked in a similar post before?
- Do you like dealing with people?
- Are you good at working in a team?
The objective of this activity is to practice the use of punctuation when writing a text.
Re-write the following text with the correct punctuation (commas, stops, capital letters, etc.)
Text with no punctuation:
a network is a complex system that is composed of many different elements as for example the cabling a workstation and a server among many others there are differet types of connection in a network the different shapes of a network connection are called topologies and there are four types star ring bus and mesh thanks to the networks a person in spain can connect with his australian friends in only seconds
The objective of this activity is to practice the use of an online dictionary to get information about a word.
Go to the English-Spanish section of the Wordreference online dictionary and look up the words in bold type in the text below. Then write the part of speech and the meaning of each word in this specific context, as in the example.
A computer is a machine that changes information according to well defined rules. Computers have existed for much of human history. Examples of early computers are the astrolabe and the abacus. Modern computers have changed very much. They are able to control traffic lights, cars or locks. Most modern computers can be used to play music or video. The basic principle is still the same though: the computer has a set of rules, usually called an algorithm. The computer changes information based on these rules.
From the Wikipedia
Example: machine: sustantivo; máquina