1. 1.consider (p. 26, line 8) Sentence: In ancient times, the number seven was CONSIDERED a magical number. Meaning: to think of someone or something in a particular way or have a particular opinion Part of speech: verbGrammar of the word: transitive Pronunciation: /kənˈsɪdər/

2. 2. transmit (p. 27, line 5) Sentence: The transmitters and receivers can be far apart on Earth, and signals can still be TRANSMITTED successfully. Meaning: to send out electric signals for radio or television Part of speech: verb Grammar of the word: transitive & intransitive Spelling of participles: transmitting & transmitted Pronunciation: /trænzˈmɪt/ Noun forms: transmission [C, U] & transmitter [C]

3. 3. launch (p. 27, line 7) Sentence: The first communications satellite was LAUNCHED in 1960. Meaning: to send a weapon or a space vehicle into the sky or into space Part of speech: verbGrammar of the word: transitive Pronunciation: /lɔːntʃ/

4. 4. break down (p. 27, line 9 ) Sentence: The space shuttle also helps if a satellite BREAKS DOWN. Meaning: (of a large machine) stops working Part of speech: phrasal verb Grammar of the word: intransitive Noun form: breakdown [C]

5. 5. extraordinary (p. 28, line 4) Sentence: He conquered an EXTRAORDINARY amount of land; he conquered more land than anyone who came before him. Meaning: very unusual, special, or surprising Part of speech: adjective Adverb form: extraordinarily Pronunciation: / ɪkˈstrɔːrdəneri/