Unit4 Inventions

2. a fine powder that consists of very small pieces of sand, earth, etc.
8. a point in time which is not fixed or set.
11. not ordinary or usual; different from what is normal.
13. the first part of a book or speech that gives a general idea of what is to follow.
14. one of the large flat parts that stick out from the side of a plane and help to keep it in the air when it is flying.
15. a system for talking to sb else over long distances, using wires or radio; a machine used for this. (make a telephone call)
17. to make sth happen or exist.
18. the amount of space between two places or things.
20. to think of or produce a new idea, product, etc. and make it successful.
23. the period during the day between the time when it gets light and the time when it gets dark. (in the daytime; during daytime)
24. phone a telephone that does not have wires and works by radio, that you can carry with you and use anywhere.

1. making you laugh; amusing.
3. a notice, picture or film telling people about a product, job or service. (advertisement for sth)
4. making you feel physically relaxed.
5. a road vehicle, usually with four wheels, that is pulled by one or more horses and was used in the past to carry people.
6. to produce or design sth that has not existed before.
7. useful or suitable.
9. a period of 100 years.
10. a person who is travelling in a car, bus, train, plane or ship and who is not driving it or working on it.
11. from a time in the past until a later past time, or until now.
12. a device that uses electricity, oil or gas to produce light.
16. a round stick of wax with a piece of string through the middle which is lit to give light as it burns. (light a candle)
19. of in the place of sb/sth.
21. a liquid obtained from petroleum , used as fuel in car engines.
22. one of the round objects under a car, bicycle or bus that turns when it moves.