下列光现象与其成因对应正确的是（　　）

阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式.

    In London, there are many so-called pop-up shops(流动商店). Why they get such a name is that they are just temporary ____ (arrange).

    Pop-up shops first appeared in the UK in the early 2000s. They were____ (origin)a way for small companies to rent small space in great locations.

    In 2008，many businesses had to shut down. Shops and some offices____ (leave)empty when people stopped____ (run) them. Smart businessmen occupied some of them quickly because they could start a business with much ____ (low) risk. The temporary nature of a pop一up gave them the opportunity____ ( test) a product and develop a customer base. Being small made ____ easier for pop-ups to expand if they were successful.

    Pop-up shops can take many different forms. They might be temporary shops in the high street or a shopping centre. hey might be simple market stalls. According to a 2014 report made ____the Centre of Economic and Business Research, the pop-up industry was worth £2. 1 billion ____ it is expected to grow by 8.4% this year.

    Almost anything____ can be on a high street can also be a pop-up. In an age of fast changing habits, the pop-up idea might be here to stay.

【写法借鉴】写一个场景，就是写一个场面。写场景要注意点面结合，有点有面地描述。场景不是一个人的活动，是有许多人参加的活动。比如本文按时间顺序重点描写了降下港督旗、告别港督府等四个主要场景，就写得条理清晰、形象生动。

【片段仿写】请你学习本文的写法，写一段话，描写一个课间活动的场景。(150字左右)

    Marco Polo was from Venice, Italy. In 1271, at the age of 17, Marco went on a trip with his father and uncle to China. Today people often travel to different places around the world. But it was very hard for people from Europe to visit China then. After three and a half years, the Polos reached China in 1275.

    While he was there, Marco Polo worked for Kublai Khan, the emperor of China. He was able to learn and experience many things that were new to Europeans. In his diary, he wrote, "Kublai Khan's palace is the greatest I've ever seen. The streets of the new capital, Dadu, are so straight and so wide." Paper money also took him by surprise, since it was not yet in use in the West at that time. Homes were heated with "black stones… which burn like wood." Those stones were coal, and most of the Europeans knew little about it then.

After 17 years in China, Marco and his family finally returned to Venice. After he returned home, Marco completed a book called The Travels of Marco Polo, full of facts about his wonderful experiences in China.

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