EXAMS FCE – B2 – READING AND USE OF ENGLISH – PART 3 – B2 – READING AND USE OF ENGLISH – PART 3 7. Read the text below. Use the words in capitals at the end of some of the lines to form a word that fits the gap in the same line. How Skycam Works It looks like an enormous ............................................ spider, but it’s not a black widow that grew too much, it’s a camera moving about in the air, chasing football ............................................ as they run for a touchdown. It’s Skycam, the original camera that films from above in the sky and you’ve probably ............................................ a lot of videos created by it. Skycam is a remote- ............................................ camera that ‘flies’ suspended from cables and it’s been zooming around stadiums and other venues for years, especially during American football matches, ............................................ fantastic camera coverage that would otherwise be impossible to have. Skycam offers a video-game-type view that works with modern technology. Without fast computers, user- ............................................ software and some really strong cables, the filming of matches from above with this technology would be impossible to do. 1. 2. 3. 4. 5. 6. FLY • PLAY • SEE • CONTROL • PROVIDE • FRIEND Adapted from: https://electronics.howstuffworks.com/cameras-photography/digital/skycam.htm FCE FCE – B1 – READING AND USE OF ENGLISH – PART 6 8. Read the article below. Six sentences have been removed from the article. Choose from sentences a-f the one which fits each gap. There is one extra sentence. If you charge up the capacitor with a battery, the capacitor will start to discharge through the inductor. There are oscillators in computers, metal detectors and even stun guns. You can make a very simple oscillator by connecting a capacitor and an inductor together. The sine wave that matches that particular frequency will be amplified by the resonator, and all of the other frequencies will be ignored. This is how you “tune into” different stations on the radio! And an AM radio receiver uses a special form of oscillator. a. b. c. d. e. f. Oscillators in Radio Technology Oscillators are important in many different types of electronic equipment: .................. An AM radio transmitter uses an oscillator to create the carrier wave for the station, .................. called a “resonator,” to tune into a station. .................. Both capacitors and inductors store energy, a capacitor stores energy in the form of an electrostatic field, while an inductor uses a magnetic field. In a radio, a capacitor/inductor oscillator acts as the tuner, it is connected to an antenna and thousands of sine waves from different radio stations hit the antenna. The capacitor and inductor want to resonate at one particular frequency, .................. In a radio, either the capacitor or the inductor in the resonator is adjustable, when you turn the tuner knob on the radio you are adjusting a variable capacitor. Varying the capacitor changes the frequency of the resonator and the frequency of the sine wave that the resonator amplifies; .................. 1. 2. 3. 4. 5. Adapted from: https://electronics.howstuffworks.com/oscillator.htm