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BBC和考研英语一相关板块有：business，Science，Family & Education，Health等，其中business毫无疑问是重点，点击展开次级菜单有Economy，然后打开如上界面，往下拉有最新更新Latest Updates，查询与考研英语一取材范围【搜索已发内容】及有效时间段：2020年12月至2021年9月相符合内容，经过筛选，下面
是一篇符合标准的文章【文章按照句子划分，有利于分析研究】：
Watchdogs in the US and UK said they were monitoring activity and potential lawbreaking, and warned traders they risked facing huge losses.
Traders should ensure they are familiar with all rules, "including market abuse", the UK's regulator said.
GameStop is the focus of a trading war between amateurs and Wall Street pros.
Shares in the US bricks-and-mortar video games retailer surged again on Friday, ending 68% higher. Another stock in the traders' sights, AMC Entertainment, jumped 54%.
That bucked broader market trends, which saw all three main US indexes fall roughly 2%. For the week they were down more than 3% - the biggest weekly decline since October.
Some share trading firms temporarily halted dealings on Thursday amid extreme volatility in GameStop, which has soared as much as 700% in the past week. AMC Entertainment and Blackberry, which have also seen huge trading activity, were among the other companies also hit by the restrictions.
UK traders have also been sharing their thoughts and tips on trading chat forums amid mounting concerns about misinformation and share ramping.
London-listed companies have also been the focus of social media attention, including publisher Pearson and cinema operator Cineworld, although the share price movements were minimal compared with the GameStop surge.
In the US, the US Securities and Exchange Commission (SEC) warned against illegal "manipulative trading activity".
The regulator added: "Our core market infrastructure has proven resilient under the weight of this week's extraordinary trading volumes.
"Nevertheless, extreme stock price volatility has the potential to expose investors to rapid and severe losses and undermine market confidence."
The SEC also said it would review actions that could "unduly inhibit" and "disadvantage investors".
The war between amateur private investors and heavyweight firms like hedge funds centres on so-called short selling. Over recent months, hedge funds had made big bets that shares in loss-making GameStop would fall.
But an army of private investors, swapping tips on social media, spotted a chance for a buying frenzy that would push up the price and "squeeze" the hedge fund short sellers.
Many private traders made profits - and losses - along the way, but their actions also dealt a big financial blow to hedge funds that spent billions of dollars gambling GameStop's shares would tumble.
The decision on Thursday by several brokerages to halt purchases of shares in Gamestop and some other firms sparked outrage among investors, who accused the companies of working on behalf of traditional Wall Street investors who were losing out to the army of amateurs. Some disgruntled investors said they were preparing legal action.
Investor anger over their 
temporary ban from trading spread beyond the investment community, with rappers and US politicians on both sides of the Washington divide joining the backlash against Wall Street.
虽然考研英语一不可能采用BBC的文章，但并不妨碍从中获取英语一阅读取材范，因为英式文章风格大同小异，特点之一就是比较好出题，里面“坑”是比较多的；通过这一篇文章，可以了解一些相对专业的术语，比如对冲基金，做空，逼空，止损等，这些对于即将参加考研中国知识精英来说，并不算专业知识。下面是和文章相关背景知识，有助于了解本文。
Key to what's going on is "short selling" or "shorting", where a big investment firm such as a hedge fund tries to make money by betting that a company's share price will fall.
The hedge fund borrows shares in a company from other investors (for a fee) and sells the shares on the markets at, for example, $10 each, waits until they fall to $5, and buys them back. The borrowed shares are returned to the original owner, and the hedge fund pockets a profit.
GameStop - which saw heavy losses last 
year and was described as "failing" by one big investor - is the most shorted stock on Wall Street.
But in the last week, amateur investors who follow the Wall Street Bets forum on Reddit have poured money into buying the company's stock with the aim of pushing up the price.
If the price rises dramatically, short sellers face big losses and they need to buy back the shares they have borrowed quickly to prevent bigger losses - a process known as covering.
However, buying back the shares only adds to demand for the stock and pushes its price higher still.
如果能在英国《卫报》查询相关文章，尤其是《社论》或者《观点》栏目，会对文章理解能力提升起到事半功倍的，养成阅读英文不同文字表达近似内容的习惯是解决考研命题组“坑”行之有效的方法。
