一、完形填空。
When it comes to deserts, many people 1 huge dunes（沙丘）and dry weather. But a 2 in Brazil may change your mind. The desert is called Lencois Maranhenses. It is famous 3 its beautiful white dunes and green and blue lakes.
The desert's name is from Portuguese. It 4 means “bed sheets from Maranhão”. Maranhão is the Brazilian state where the desert is.
5 dunes cover most areas of the desert, it is not dry there. The desert is close to the Amazon River and the place's rainy season can make a 6 to the weather in the desert. The desert can 7 enough rainfall from January to May. The 8 fill up the lakes between the dunes and make the place more amazing. Some of the lakes can be more than 90 metres long and 9 enough for swimming.
The desert is a dream place for 10 lovers. They can walk through the dunes, 11 in the lakes and even fly over the desert. It is also home to some special 12. They 13 some wild animals and endangered animals in Brazil.
The best time to go there is between June and September. The lakes reach 14 fullest then. From October the wind becomes 15 and there are far fewer lakes to visit.
（）1. A. think over B. think back C. think up D. think of
（）2. A. mountain B. desert C. river D. forest
（）3. A. for B. to C. as D. with
（）4. A. mainly B. easily C. differently D. seriously
（）5. A. Because B. Unless C. But D. Although
（）6. A. mistake B. plan C. difference D. decision
（）7. A. lose B. waste C. watch D. get
（）8. A. snow B. oil C. winds D. rains
（）9. A. high B. deep C. thick D. thin
（）10. A. nature B. music C. animal D. plant
（）11. A. sleep B. run C. lie D. swim
（）12. A. people B. animals C. sand D. plants
（）13. A. save B. protect C. include D. know
（）14. A. its B. their C. our D. your
（）15. A. faster B. weaker C. stronger D. more

1-5 DBAAD 6-10 CDDBA 11-15 DBCBC

这是一篇介绍巴西特色沙漠伦索瓦马拉亨塞斯的完形填空，逐题解析如下：
1. 考查短语辨析：D. think of 意为“想到、想起”，符合语境：提到沙漠时很多人会联想到巨大沙丘和干燥的天气；A. think over仔细考虑，B. think back回想，C. think up想出，均不符合句意。
2. 考查上下文呼应：后文明确介绍这是一处特殊的沙漠，因此选B. desert，指巴西的一处沙漠会改变你对沙漠的固有印象。
3. 考查固定搭配：be famous for 是固定短语，意为“因……而闻名”，符合语境它以美丽的白色沙丘和蓝绿色湖泊闻名，选A。
4. 考查副词辨析：A. mainly 意为“主要地”，句意：它的名字来自葡萄牙语，意思主要是“来自马拉尼昂的床单”，符合语义；B. easily容易地，C. differently不同地，D. seriously严肃地，均不合适。
5. 考查让步连词：D. Although 意为“尽管”，句意：尽管沙丘覆盖了沙漠的大部分区域，那里并不干燥，表让步逻辑符合上下文。
6. 考查固定搭配：make a difference to 是固定短语，意为“对……产生影响”，句意：当地的雨季会对沙漠的天气产生影响，选C。
7. 考查动词辨析：D. get 意为“获得、得到”，句意：这片沙漠在1月到5月可以得到充足的降雨，符合语境。
8. 考查上下文呼应：前文提到降雨充足，这里指雨水填满沙丘之间的湖泊，选D. rains。
9. 考查形容词辨析：B. deep 意为“深的”，句意：部分湖泊长度超过90米，深度足够可以游泳，符合语义。
10. 考查名词辨析：这片沙漠有独特的自然景观，是自然爱好者的梦想去处，选A. nature，nature lovers 意为“自然爱好者”。
11. 考查上下文呼应：前文提到湖泊足够深可以游泳，这里指人们可以在湖里游泳，选D. swim。
12. 考查上下文呼应：后句提到野生动物、濒危动物，说明这里也是很多特殊动物的栖息地，选B. animals。
13. 考查动词辨析：C. include 意为“包括”，句意：这些动物包含巴西的一些野生动物和濒危物种，符合语境。
14. 考查物主代词：这里指代前文的复数名词the lakes，对应的物主代词是their，句意为那时湖泊的蓄水量达到峰值，选B。
15. 考查形容词比较级：C. stronger 意为“更强的”，句意：从十月开始风力变强，可游览的湖泊就少了很多，符合逻辑。