题目

阅读短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。 From the top of Mount Qomolangma to the bottom of the Mariana Trench, plastic continues to pollute our environment, and it poses a significant threat to all life forms on Earth. 1 knowing the ecological, eco-toxicological, and economic effects of plastic pollution, we have not been able to forbid the use of plastic products. Now, 2 the invention of a 17-year-old girl, we finally have a much better alternative. This plastic-like material is made from prawn shells(虾壳), and it divides 1.5 million times faster than most of 3 plastic products we use today. She extracted the carbohydrate called "chitin" from the shells and used chemical change to turn it into chitosan(基糖). She then mixed it with an insoluble protein called "fibroin", which is found in silk cocoons. Using the 4 of these two organic materials, Arora created a plastic-like material that 5 completely within just 33 days. Moreover, this plastic 6 nitrogen(氮) when dividing, which is why it can be used as mulch or plant fertilizer. In the 2018 Broken Hill Proprietary company (BHP) Billiton Foundation Science and Engineering Awards, Arora was awarded the Innovator to Market Award. She also gained international 7 through the Intel International Science and Engineering Fair. Thousands of 8 students from over 81 nations participated in the competition, and Arora came in fourth for her creativity. She also won a comprehensive 9 to one of the best universities in the United States. The 17-year-old, now a student of medicine, is on a search to 10 the usage of traditional plastic. She has produced the final prototype of her product, and it is ready to be produced commercially. However, before that happens, she has to 11 legal formalities(合法手续) such as patenting. She is also talking to supermarkets and 12 them to use her biodegradable plastic, which is insoluble, durable, and transparent. It can be used for all kinds of packaging, and the producing cost of the product is also 13 than most biodegradable products. An 14 young woman, Angelina Arora wants to make a difference in the world, and she wants to encourage other young people, especially young women, to 15their passion and make a positive difference however they can. Thus, women are now getting stronger and stronger. （1） A . Without B . Besides C . Except D . Despite （2） A . but for B . other than C . thanks to D . rather than （3） A . commercial B . comprehensive C . contrary D . constant （4） A . similarity B . distinction C . combination D . contact （5） A . breaks down B . takes down C . puts down D . sets down （6） A . reduces B . releases C . stores D . increases （7） A . disapproval B . ability C . recognition D . profit （8） A . courageous B . brilliant C . generous D . honest （9） A . scholarship B . medal C . admiration D . election （10） A . require B . remain C . remove D . reflect （11） A . see through B . go through C . pass through D . get through （12） A . forbidding B . allowing C . forcing D . urging （13） A . clearer B . higher C . cheaper D . lower （14） A . innocent B . inspiring C . independent D . interesting （15） A . follow B . oppose C . destroy D . damage 答案：（1）D；（2）C；（3）A；（4）C；（5）A；（6）B；（7）C；（8）B；（9）A；（10）C；（11）B；（12）D；（13）D；（14）B；（15）A；

查看本题答案和解析