下面小编跟大家一起了解英语四级新闻听力词汇分享，希望对大家的学习有所帮助。
1.
A. Mobile operating system.
B. Online communication app.
C. Digital currency.
D. Mobile phone.
2.
A. Because of sharp price drops and computer attacks.
B. Because of financial recession.
C. Because of fluctuation of stock market.
D. Because of global stock market selloff.
二、听力文本
Facebook has announced the launch of its own digital currency in a major new push into the worldwide financial services industry. Facebook is calling its cryptocurrency Libra. It expects to launch the service publicly in the first half of next year. The U.S.-based social media service says Libra will be available to anyone with a smartphone and internet connection. "Moving money around the world should be as easy and cheap as sending a text message,"
Facebook says on its website. The company says it especially wants to reach an estimated 1.7 billion "unbanked" people across the world who currently do not use a bank. Costs to use Libra will be lower than what other companies currently charge for the service, Facebook said. It has not yet released pricing information, however. Facebook says its digital currency will differ in several ways from bitcoin and other popular cryptocurrencies in use today. Unlike the others, the company says, Libra's value will be tied to real money backed by banks and government securities in major currencies like the U.S. dollar, euro, yen and others. The Libra system will also be supported by several traditional financial companies, including PayPal, Visa, Mastercard and eBay.
The company says these changes are aimed at improving trust and preventing major valuation changes of the Libra. Investors in bitcoin and other cryptocurrencies have lost hundreds of millions of dollars because of sharp price drops and computer attacks. Facebook is likely to face serious questions about its new cryptocurrency system from lawmakers in the United States and other countries. Some American lawmakers have already proposed that Facebook face new rules or penalties – or possibly even be forcibly broken up - for major incidents involving the misuse of private user data.

Question 1: What has Facebook launched in this news report?
Question 2: According to the news report, why have investors in bitcoin and other cryptocurrencies lost hundreds of millions of dollars?
三、重点词汇
1. a digital currency produced by a public network, rather than any government, that uses cryptography to make sure payments are sent and received safely （公共网络的，而非发行的）加密电子货币（使用加密法确保付款安全支付及收取）
2. bitcoin: a type of cryptocurrency (= a digital currency produced by a public network rather than any government) 比特币
四、背景知识
据国外媒体消息，6月18日，美国社交网络巨头Facebook宣布正在开发的全球数字货币“天秤币”（Libra）将于2020年推出，同时也将成立新公司Calibra，计划在其Facebook Messenger和WhatsApp服务中建立一个数字钱包，以方便人们通过应用程序向朋友，家人和企业汇款。据悉，全球目前有 17 亿成年人没有银行账户，占全球总人口的 31%，而推出Libra的目标就是所有人都参与金融世界，它具备价值稳定、交易快速、可扩容和安全等兼具区块链金融和传统金融特点的功能，为消费者提供方便、免费的全球汇款服务，就像发送照片或信息一样方便。
五、参考答案
Question 1: C
Question 2: A