1) 
1. a load;
2. a switch;
3. a fuse;
4. a conducting wire;
5. a power source;
2)
1. load - e;
2. switch - f;
3. source - c;
4. fuse - a;
5. closed circuit - d;
6. broken circuit - b;
3)
1. A simple circuit consists of a power source, two conducting wires, a load. Also there are a switch and a fuse.
2. In a closed circuit the lamp lights up.
3. Some of loads examples: light bulbs, electric motors and speakers.
4. Generator is a machine that converts one form of energy into another.
5. Function of a switch is to interrupt the current delivered to the load by the source.
6. A short circuit occurs when there is a drop in the resistance or a broken insulation.
7. To prevent short circuits we can use fuses.
8. A fuse melts when too much current flows through them, interrupting in this way the circuit.
4)
1. components;
2. path;
3. current;
4. positive;
5. amount;
6. burns out;
7. branch;
8. continue;
9. appliances;
10. turn on;
5)
1. excessive - undue;
2. reacting to high temperaturies - heat-sensitive;
3. to melt - liquefy;
4. loading up - overloading;
5. adjusted - reset;
6. clients - customers;

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