9．Unless you bring your own thermos，paper cups are the real option for on-the-go coffee．But as we all know，producing these simple items cuts down forests of trees and contributes to mountains of waste．In fact，Starbucks alone uses 4billion paper cups a year globally and most of these plastic-lined cups are never recycled．
But a project from Reduce．Reuse．Grow．is handling the coffee industry's paper cup problem by giving these single-use coffee holders a further purpose：reforestation．
A company in California has developed the world's first plantable coffee cup，which has seeds in the paper-based material．That means after you're done with the cup，you can tear it，leave it in water for a few minutes，bury it and let nature take over．
To prevent the spread of invasive plants，the bottom of the cup details the seed variety and also includes instructions on how to plant it either in the northern or central coast of California．For those who don't want to get their hands dirty，the cup can be put into a Reduce．Reuse．Grow bin where it will eventually be taken to a reforestation location．The cup can biodegrade（生物降解） within 180days and offer nutrition to plants．
The company is trying to put the cup into commercial production and persuade coffee shops to buy the cups．
21．Starbucks is mentioned in Paragraph 1D．
A．because Starbucks provides recyclable cups
B．because Starbucks uses pretty plastic-lined cups
C．to show Starbucks is famous for its on-the-go coffee
D．to prove the coffee industry causes the paper cup problem
22．The plantable coffee cupB．
A．can be used many times
B．contains seeds in its material
C．can be used as a flowerpot
D．is made of waterproof material
23．The seed variety is shown on the cup mainly toC．
A．interest cup users
B．spread knowledge of plants
C．make sure it is planted properly
D．help users choose certain cups
24．What is a Reduce．Reuse．Grow．bin used for？C
A．Selling plantable coffee cups．
B．Making plantable coffee cups．
C．Collecting plantable coffee cups．
D．Recycling plantable coffee cups．
分析 本文是一篇说明文，咖啡产业需要大量的纸杯，这会造成树木砍伐和垃圾成山问题，加州的一家公司研制出世界上第一种可种植的咖啡杯，这种杯子里含有可种植的种子．
解答 21．D 作者意图题．根据第一段中的"But as we all know，producing these simple items cuts down forests of trees and contributes to mountains of waste．"及最后一句话可知，生产咖啡馆用的纸杯会造成树木砍伐和垃圾成山问题，举星巴克的例子就是为了证明这一点，故D项正确．
22．B 细节理解题．根据第二段中的"the world's first plantable coffee cup，which has seeds in the paper-based material．"可知，这种可种植的咖啡杯里有可种植的种子，故B项正确．
23．C 细节理解题．根据第四段中的"…the bottom of the cup details the seed variety and also includes instructions on how to plant it either in the northern or central coast of California．"可知，纸杯底部详细介绍了种子种类和种植说明就是为了确保种子能够被正确地种植，故C项正确．
24．C 细节理解题．根据第四段中的"…the cup can be put into a Reduce．Reuse．Grow bin where it will eventually be taken to a reforestation location．"可知，Reduce．Reuse．Grow bin是用来收集可种植的咖啡杯的，最后这些咖啡杯被运送到再造林的地点，故C项正确．
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