Whether they are playing on our TV screens or printed in newspapers, advertisements are everywhere.
They 1.________ (appear) since the 18th century, when advances in printing techniques and more details images 2._________ (produce)in newspapers and magazines. Advertising often serves as an indicator for 3.________ society considers to be socially acceptable and desirable at the time.
In spite of being designed to sell 4.________ advertise something, some ads can even have a 5._______(tend) to become part of a society's dialect. For example, in the UK, if someone describes themselves 6.________a “Marmite Person”， this means that you may either love them or hate them, 7.________(base) on the British food Marmite's slogan(标语), “Love it or hate it.”
The average person living in the city sees thousands of ads every single day. It seems that ads are a 8.________(big) part of everyday life than we think they are. Instead of finding them 9.________(trouble), however, at least we can be assured that future generations will have an interesting way to see how we lived——no matter how 10.__________(usual) today's world may change to them.
【答案】1.have appeared 2.to be produced 3.what
4．or 5.tendency 6.as 7.based 8.bigger 9.troublesome 10.unusual
