Unit 1 Public Health
Listening Tasks

Exercise 1
Vocabulary
vital必不可少的 Department of labor 劳工部  isolate 隔离 unprecedented scale 史无前例的规模  lockdown 封闭 retailing 零售 revenue 收益 ripple effect 连锁反应 global supply chain全球供应链 bedrock基石 alternative supplier 替代供应商 resurrect 恢复使用 grapple with努力克服   recession 经济衰退
dot-com bubble ：互联网泡沫（又称科网泡沫或dot泡沫）,指自1995年至2001年间的投机泡沫，在欧美及亚洲多                        个国家的股票市场中，与科技及新兴的互联网相关企业股价高速上升的事件。
S&P 500  ：标准普尔500指数,英文简写为S&P 500 Index，是记录美国500家上市公司的一个股票指数。

Directions: You’ll hear a report and analysis of the impact of COVID-19 on the world economy. Please choose the best answer to each of the following questions.



Which of the following is not an impact of COVID-19 on the world economy?

 

A、The decrease of all essential commodities.
B、The increase of unemployment.
C、The slump of major stock markets.
D、The closure of all businesses.