1 . 选词填空

be exposed to；to one’s credit；function as；be modelled after；apart from

1. His painting style _____________________that of Picasso.
2. Athens, _________a center of the trade in the 13^th century,   is a charming tourist attraction now.
3. __________________, you have inspired him to make efforts to achieve his job.
4. _______________the polluted air upset the people in the city.