About a primary school English class, we discuss tourist attractions, including the zoo and the Great Wall. Please set the scene connection and so on.

I think, just like the past May Day holiday, many people went out to travel, which led to the topic of tourist destinations. Then show a crowded zoo, throw out the topic of zoo travel, and then, "look! There are also many people going to the Great Wall. " Show photos, and then lead to the topic of Great Wall tourism.