Nature is the perfect canvas for artist David Popa. He creates very special paintings on natural surfaces. He has made huge artworks on the sand in Norway, on lava in Iceland, and on rocks in Finland. These artworks are temporary. They will soon be washed away or covered by nature. This makes each artwork more valuable. People can only see the real paintings for a short time. Later, they can only enjoy them through photos and videos.

Recently, David Popa finished his new series called RENEWAL. It includes three portrait (肖像) paintings in the snowy land of Alberta, Canada. He worked with Travel Alberta and spent about two weeks enjoying the beauty of the province. He created his art on Abraham Lake and in Cline River Canyon.

The paintings are very big, about 23 to 41 meters long. They show faces with eyes closed, as if the people are taking a deep, fresh breath. Popa made these portraits by hand with charcoal (木炭). The works match well with the natural environment.

Creating art outdoors is not easy. Popa has to face cold weather and strong winds. But he never gives up. He wants to show the beautiful relationship between humans and nature. He thinks this trip and his works are truly amazing.

根据短文内容补全句子（每空限填一词）

1.1. David Popa creates paintings in ________.

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解析：选nature。nature 细节理解题。 文章第一句提到：Nature is the perfect canvas for artist David Popa. He creates very special paintings on natural surfaces.说明他在大自然/自然环境中创作。故填nature。

2.2. People can’t see his real paintings for a long time because they are ________.

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解析：选temporary。temporary 细节理解题。 原文第一段提到：These artworks are temporary. They will soon be washed away or covered by nature.temporary 意为 “暂时的、临时的”，正是画作不能长久看见的原因。故填temporary。

3.3. Popa’s new series RENEWAL was created in a________ place.

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解析：选snowy。snowy 细节理解题。 原文第二段提到：It includes three portrait paintings in the snowy land of Alberta, Canada.snowy（下雪的、被雪覆盖的）修饰 place，符合 “a + 形容词 + place” 结构。故填snowy。

4.4. The ________ of the paintings is about 23 to 41 meters.

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解析：选length。length 细节理解题。 原文第三段提到：The paintings are very big, about 23 to 41 meters long.long 是形容词，此处需要名词 length（长度），构成 the length of…（…… 的长度）。故填length。

5.5. Popa faces difficult weather conditions but he never ________ creating art outdoors.

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解析：选stops。stops 细节理解题。 原文最后一段提到：Popa has to face cold weather and strong winds. But he never gives up.give up 相当于 stop doing sth.（停止做某事）。句子时态为一般现在时，与前面faces一致，故用 stops。