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题型:完形填空 难度:0.65 引用次数:61 题号:16283831

From the top of Mount Qomolangma to the bottom of the Mariana Trench, plastic continues to pollute a range of environmental areas, and it poses a significant threat to all life forms on Earth. ________ knowing the ecological, eco-toxicological(生态毒性), and economic effects of plastic pollution, we have not been able to forbid the use of plastic products. Now, ________ the invention of a 17-year-old girl, we finally have a much better alternative. This plastic-like material is made from prawn(虾)shells, and it divides 1.5 million times faster than most of ________ plastic products we use today.

She extracted the carbohydrate called "chitin" from the shells and used chemical change to turn it into chitosan(聚氨葡萄糖). She then mixed it with a protein called "fibroin", which is found in silk cocoons. Using the ________ of these two organic materials, Arora created a plastic-like material that ________ completely within just 33 days. Moreover, this plastic ________ nitrogen when dividing, which is why it can be used as 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 ________ through the Intel International Science and Engineering Fair. Thousands of ________ students from over 81 nations participated in the competition, and Arora came in fourth for her creativity. She also won a comprehensive ________ to one of the best universities in the United States.

The 17-year-old, now a student of medicine, is on a search to ________ the usage of traditional plastic. She has produced the final prototype(雏形)of her product, and it is ready to be produced commercially. However, before that happens, she has to ________ legal formalities such as patenting. She is also talking to supermarkets and ________ them to use her biodegradable(可生物降解的)plastic, which is durable and transparent. It can be used for all kinds of packaging, and the producing cost of the product is also ________ than most biodegradable products.

An ________ young woman, Angelina Arora wants to make a difference in the world, and she wants to encourage other young people, especially young women, to ________ their passion and make a positive difference however they can. Thus, women are now getting stronger and stronger.

1.
A.DespiteB.BesidesC.ExceptD.Without
2.
A.but forB.other thanC.thanks toD.rather than
3.
A.commercialB.comprehensiveC.contraryD.constant
4.
A.contractB.conceptC.combinationD.contact
5.
A.breaks downB.takes downC.puts downD.sets down
6.
A.reducesB.releasesC.storesD.increases
7.
A.disapprovalB.abilityC.recognitionD.profit
8.
A.courageousB.brilliantC.generousD.honest
9.
A.scholarshipB.medalC.admirationD.election
10.
A.requireB.remainC.removeD.reflect
11.
A.see throughB.go throughC.break throughD.glance through
12.
A.forbiddingB.allowingC.forcingD.urging
13.
A.clearerB.higherC.cheaperD.lower
14.
A.innocentB.inspiringC.intelligentD.interesting
15.
A.followB.opposeC.destroyD.damage

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