Since the Covid-19 pandemic started, people have begun "social distancing"—keeping a safe space between you and anyone you don't live with. Though it has been a very popular topic this year, social distancing ( 40 ). In fact, it was widely used in the U.S. in the flu pandemic in 1918. But how well did it work? The Americans' experience can tell us whether it really saved lives.
From the picture, we can see that ( 41 ) started social distancing earlier than the other three cities. This helped the city keep the number of deaths down. Besides taking early action, keeping the action long enough was also important in fighting the pandemic. The picture shows that Portland and Denver did well in the first few weeks. However, both cities ( 本題 ), and the numbers of deaths climbed again.
But there was one thing Portland did right. The city used several ways of social distancing at the same time to deal with the pandemic. ( 43 ), sick people were kept away from healthy ones; schools were closed; public activities were not allowed. All these were useful in keeping people safe.
The lessons of the 1918 pandemic bring us hope. While we are still learning to fight Covid-19, social distancing may be the best way to get us through the dark days, at least for now.
這段的第一句就是解題的總綱:keeping the action long enough was also important(維持得夠久也很重要)。段落主題句講「要夠久」,後面舉的例子一定是「不夠久」的反例。再看句內邏輯:However 表示風向轉壞,空格後面接 and the numbers of deaths climbed again(死亡數再度攀升)。空格要填的是「原因」,什麼原因會讓死亡數回升?太早收手。填 (B) 之後整段完全接得起來:頭幾週做得好,但停得太早,於是數字又上去了。