In addition to being major business centers,the large cities offer scenic attractions and cultural entertainment for all kinds of people with a variety of tastes.Cultural events occur frequently,including theatrical and operatic performances,concerts,ballet,and art exhibition,to name just a few.At the opposite end of the scale,there is a great variety of nightlife in urban centers to choose from,and there is also a wide selection of restaurants.Shopping is an attraction for many visitors,whether in the great department stores of New York,Tokyo and Hong Kong or in the boutique of Paris and London. Many big cities also offer a unique atmosphere and history.The Great Wall and the Palace Museum of Beijing and the flower vendors and cable cars of San Francisco are part of the unusual atmosphere of those cities. occur I.take place;happen(比铰正式) (尤指意外的事件)发生 The tragedy occurred only minutes after take-off. 这一悲剧在起飞后几分钟内就发生了。 Many accidents occur in the home.许多事故都是在家里发生的。 compare(比较)happen,occur and take place 偶然发生的事件通常用happen,或更正式用occur; When did the explosion happen/occur?爆炸是什么时候发生的？ 经过安排的事件的发生通常用take place; When will the wedding take place 婚礼何时举行？In addition to being major business centers, the large cities offer scenic attractions and cultural entertainment for all kinds of people with a variety of tastes. Cultural events occur frequently, including theatrical and operatic performances, concerts, ballet, and art exhibition, to name just a few. At the opposite end of the scale, there is a great variety of nightlife in urban centers to choose from, and there is also a wide selection of restaurants. Shopping is an attraction for many visitors, whether in the great department stores of New York, Tokyo and Hong Kong or in the boutique of Paris and London. Many big cities also offer a unique atmosphere and history. The Great Wall and the Palace Museum of Beijing and the flower vendors and cable cars of San Francisco are part of the unusual atmosphere of those cities. occur 1. take place ; happen （比较正式）（尤指意外的事件）发生 The tragedy occurred only minutes after take-off. 这一悲剧在起飞后几分钟内就发生了。 Many accidents occur in the home .许多事故都是在家里发生的。 compare (比较) happen, occur and take place 偶然发生的事件通常用happen ，或更正式用occur ; When did the explosion happen / occur? 爆炸是什么时候发生的？ 经过安排的事件的发生通常用take place ; When will the wedding take place ? 婚礼何时举行？