中考真题2024年黑龙江省大庆市阅读理解B篇-科学家呼吁：减少牛仔裤清洗
Think about what you like to wear on the weekend. There's a good chance that you like to put on a pair of blue jeans(牛仔裤). But according to a new study,our love for jeans may be bad for Earth, especially for sea animals.
In order to improve jeans'feel and give jeans blue color, some man-made chemicals(化学品 )are added to denim(牛仔布). Every time we wash our jeans, small bits of denim drop. They come out of our washing machine and into the world's rivers, lakes and oceans. Scientists studied the Great Lakes in America and found denim waste in it. The harmful chemicals in denim have spread far and wide. They might be putting some sea animals in danger.
Scientists also washed jeans to see how many bits of denim each pair would drop for each wash. The answer was worrying:About 50,000 bits. Not all of them come into the environment. Wastewater treatment factories can deal with 99%of them. This may sound pretty good. However, the rest of them still have a bad influence on the environment.
Does this mean we shouldn't wear jeans?Probably not. "We need to buy fewer jeans and only wash them when we truly need to do it,"says Sam Athey, one of the scientists. "You don't need to wash your jeans too often."
1.1.What does the underlined word"they"in Paragraph 2 refer to?
A Small bits of denim.
B Blue jeans.
C New studies.
D Sea animals.
解析：选A。词义猜测题A。第二段“Every time we wash our jeans, small bits of denim drop. They come out of our washing machine and into the world's rivers, lakes and oceans.”可知，每次洗牛仔裤时，小块牛仔布会脱落，它们从洗衣机出来进入世界上的河流、湖泊和海洋。所以“they”指代的是“small bits of denim”，A选项正确。
2.2.What have scientists found in the study?
A How to make jeans.
B Jeans are popular in the world.
C Denim waste is in the Great Lakes.
D Man-made chemicals are not harmful.
解析：选C。细节理解题C。第二段“Scientists studied the Great Lakes in America and found denim waste in it.”可知，科学家在美国五大湖中发现了牛仔布垃圾，所以C选项正确。
3.3.How many bits of denim will drop if we wash one pair of jeans once?
A About 500 bits.
B About 45,000 bits.
C About 50,000 bits.
D About 49,500 bits.
解析：选C。细节理解题C。文中明确提到“Scientists also washed jeans to see how many bits of denim each pair would drop for each wash. The answer was worrying: About 50,000 bits.”，这句话清晰地表明了科学家通过实验得出每次洗一条牛仔裤大约会掉落50,000块小块牛仔布，所以C选项“About 50,000 bits”是符合文章内容的正确答案。
4.4.What can be the best title of the article?
A Say no to jeans.
B Jeans—everyone's love.
C Wear your jeans every day.
D Wash your jeans less,please!
解析：选D。主旨大意题D。文章主要讲述了人们对牛仔裤的喜爱可能对地球，尤其是海洋动物有害，因为洗牛仔裤时会产生含有有害化学物质的小块牛仔布进入环境。最后科学家建议人们少买牛仔裤，并且只有真正需要的时候才洗。所以D选项“Wash your jeans less, please!”最能概括文章主旨。