Why does the world become smaller? 2.What can we learn from cultural exchange? 3. What kind of principle can we adopt in cultural exchange 4. What should we do when absorbing the essence of a foreign language? A. Eliminate the false and retain the true, discard the dross and select the essential, export more and import the best, and resist bad influences . B. It can enrich a nation ’ s own culture. C. We should not be content with imitation without creation; we should keep our novelty and originality. D. The world becomes smaller because of different modern transportation and communication.