下面小编跟大家一起了解英语四级新闻听力练习题分享，希望对大家的学习有所帮助。
一、听力练习
1.
A. Genetic disease.
B. Infectious disease.
C. Energy consumption.
D. Information storage.
2.
A. Great density.
B. Low cost.
C. Accessible technology.
D. Efficiency.
二、听力文本
The need to store more and more computer information is rising across the world. Several companies now say they are exploring a possible solution: they propose using genetic material, DNA, to store data. Developers say one of the main reasons DNA would be good for data storage is because of its great density. Experts have estimated DNA systems could store one billion times the amount of data held in traditional electronic devices of comparable size.
For DNA storage to succeed, digital information has to be converted to DNA storage and then back to digital data. Microsoft announced earlier this year that it had demonstrated the first "fully automated" DNA storage system. Researchers reported it had successfully encoded the word "hello" in pieces of DNA and converted it back to digital data. A chemical process is used to get the DNA into a storage device. Microsoft said the information is stored in DNA molecules created in a laboratory,
not DNA from humans or other living things. The company said its goal is to further develop the DNA storage to operate in a similar way to current cloud storage systems. Microsoft said the team had demonstrated its DNA system could store photographs, written documents and audio and video material. Those materials were then successfully re-collected from the DNA without errors, the company reported. Experts have praised recent developments in DNA storage technologies. But the organization says much more work needs to be completed before DNA storage systems can effectively compete with electronic ones. Currently, the systems are costly and processing times can be very long.
Question 1: According to the news report, what issue is DNA proposed to deal with?

Question 2: According to the news report, what is mentioned as one of the main reasons for DNA to be good for data storage?
三、重点词汇
1. genetic: belonging or relating to genes (= parts of the DNA in cells) received by each animal or plant from its parents 基因的；遗传信息的
2. density: the relationship between the mass of a substance and its size （物质的）密度
3. encode: to change something into a system for sending messages secretly, or to represent complicated information in a simple or short way 把…译成电码（或密码）；把…编码
4. molecule: the simplest unit of a chemical substance, usually a group of two or more atoms 分子
四、背景知识
随着数字化时代的到来，可以毫不夸张地说，数据存储与安全正在成为整个社会正常运行的基础。同时，物联网、人工智能、虚拟现实、自动驾驶等新技术的应用则进一步大幅提升了数据存储要求。据IDC预测，到2025年，全球将生产163ZB的数据。在未来，当前以硬盘为主的存储设备将面临非常严峻的挑战，因此，研发高容量、高密度并且能够承受极端环境条件的数据存储介质势在必行，而DNA存储则成为众多科技公司探索的新方向。在计算机中，所有数字都是由0、1构成的二进制编码，
而DNA数据存储技术则是将0、1数据通过一定的编码方法转换成DNA中的A、T、C、G四种碱基，通过合成含有这些碱基序列的DNA即可实现数据信息存储。与传统的存储介质相比，DNA数据存储具有存储密度高、保存时间长、易获取、易维护、能耗低等特点。2019年，来自微软和大学的研究人员宣布：以人工合成为DNA为载体的存储和读取数据的全自动系统研制成功，迈出了该技术从研究实验室走进商业应用关键的一步。在一次概念验证测试中，该研究团队成功地在人工合成的DNA片段中编码了“hello”一词，并使用全自动端到端系统将其转换回数字数据。
五、参考答案
Question 1: D
Question 2: A