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How our muscles work
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How do muscles move? We use muscles to produce movement, force or both things. This happens when our muscles contract (become shorter and thicker). Muscles are attached to bones by tendons. When a…
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Speaking - Go back to the text
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Find a partner (another student or a friend). One of you takes the part of Virginia and the other the part of a reporter. The reporter: ask Virginia questions about her experience with the Ghost.…
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Video: The Boy Who Cried Wolf
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This is the classic tale in which a shepherd pretended there was a wolf to make fun of the villagers and when the wolf really appeared nobody believed him anymore. Subtitles in English help children…
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The nature of light
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2.1. What is light? Light has an undulatory nature; this means it is made up of waves. Visible light (that can be seen by the human eye) belongs to a larger group of waves called electromagnetic waves.…
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Autoavaluació 8.06 - La monarquia autoritària: els Reis Catòlics
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Completa les oracions sobre l'organització econòmica i social de Castella i d'Aragó: L'economia castellana s'orientava cap a la i el comerç de la . A Castella la monarquia va donar…
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Unit 3: Medieval cities
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Altarpiece (n): a work of art located above and behind the altar of a church. apprentice (n): a person who acts as assistant and student to a skilled craftsman. artisan (n): a craftsman skilled at…
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The digestive system (I)
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The digestive system is the group of organs that digest food, absorb nutrients and expel undigested waste. It contains the alimentary canal and the digestive glands. The alimentary canal The alimentary…
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Investigate. Computer virus
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Have you ever heard of a "computer virus" or seen an "infected" computer? Computer viruses are small programs that are installed on our computer without our knowledge. Some can be very…
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Lletres i paraules
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Com Tirant va declarar el seu amor Tirant, capità de l'exèrcit de l'imperi grec, sentia una passió extraordinària per la princesa i cada dia patia més per culpa de l'amor que sentia. Un…
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Comprehension check (PET)
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Read these sentences about Chapter Eight. Decide if each sentence is correct or incorrect. Hans managed to save only the food from the water. Axel and his uncle found some shells of prehistoric…
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