Daji, or big open-air fairs, typically take place on specific dates of the lunar calendar, for example, on dates with five or seven as the last digit. It is also common for them ____56____ (hold) during traditional Chinese holidays such as the Spring Festival and the Mid-Autumn Festival, as well as other local festivals. The exact dates and ____57____ (frequent) of daji vary from region to region.

Daji originated from the ancient folk custom of trading goods, which dates back to ____58____ Han Dynasty. As transportation and communication ____59____ (be) underdeveloped at that time, it was very difficult for households to obtain daily ____60____ (necessity). As a solution, people gathered at specific locations on set days to trade their surplus (剩余的) items ____61____ what they needed.

In addition to being venues for buying and selling, daji are occasions for socializing and entertainment. People from near and far crowd into these markets on daji days. ____62____ (draw) by the aroma (香味) of street food, they line up in front of stands ____63____ serve steaming dumplings and hot noodle soup. While eating and enjoying street performances, they chat with each other and share stories of their daily lives. Before ____64____ (head) home, they fill their shopping bags with fresh fruit and vegetables from local farmers, at prices significantly ____65____ (cheap) than those found in supermarkets.

考查非谓语动词。句意：它们也常常在传统节日期间举行，例如春节、中秋节以及其他地方性节日。固定句型“it is + adj. + for sb./sth. to do sth.”中不定式作真正主语，且hold(举行)与其逻辑主语“them(指代Daji)”之间为被动关系，故用不定式的被动式to be held。

考查名词。句意：大集的确切日期和频率因地区而异。提示词与名词“dates”并列作主语，应用名词形式frequency，表示“频率”，不可数名词。

考查冠词。句意：大集起源于古代民间以物易物的习俗，可追溯至汉朝。专有名词Han Dynasty特指“汉朝”，需用定冠词the限定。

考查时态和主谓一致。句意：由于当时交通和通讯都不发达，家家户户很难买到日常必需品。提示词作谓语，时间状语“In the old days”表明用一般过去时态，主语“transportation and communication”为复数概念，谓语用复数形式were。

考查名词复数。句意同上。名词necessity意为“必需品”时通常用复数形式，泛指日常所需的多种物品。

考查介词。句意：作为解决办法，人们在固定的日子里聚集到特定地点，用自己多余的物品来交换自己需要的东西。“trade A for B”是固定搭配，表示“用A交换B”。

考查非谓语动词。句意：被街头小吃的香味所吸引，他们在热气腾腾的饺子摊和热汤面摊前排起长队。此处作状语，draw(吸引)用非谓语动词形式，与其逻辑主语they之间为被动关系，应用过去分词表被动；且位于句首，首字母大写。

考查定语从句。句意同上。此处引导限制性定语从句，stands(摊位)是先行词，关系代词在从句中作主语，应用关系代词that或which引导从句。

考查非谓语动词。句意：在回家之前，他们会把从当地农民那里买来的新鲜水果和蔬菜塞满购物袋，价格比超市里的便宜得多。介词“Before”后接动名词作宾语。

考查形容词比较级。句意同上。提示词作后置定语修饰prices，且设空处后有“than”，应用比较级cheaper。