Passage 1 The trouble is, many c

Passage 1
The trouble is, many countries still think of opening their markets to more imports as a concession to be made reluctantly,not( economists see it) as something that is good for them in its own right. Even America and the European Union, which have led the push for open markets, still shelter parts of their economies for fear of hurting workers in coddled industries.
Globalization has aroused worries in many rich countries that free trade with much poorer countries threatens jobs and prosperity This was plain in last year's debate in the United States and Mexico, was viewed by many Americans as their loss and Mexico's gain. The idea that trade is desirable only if it happens among countries with similar wages dies hard.
47.Why do America and the European Union still shelter parts of their economies?
【正确答案】：For fear of hurting workers in coddled industries.