Doctors in the US worry about this year’s winter.

Many people are sick from RSV. RSV is dangerous(危险的) for small children. It is also dangerous for people over 65 years old. The symptoms are the same as the flu(流感). Children’s immunity(免疫力) is not so strong. They become ill easily. Many children and old people are already ill.

Many people are also sick from COVID-19. In the US, 260,000 people get ill every week. More than 2,500 people die from COVID-19 every week. The US asks people to get the booster vaccine(强化疫苗) to protect(保护) them. They must do it before the winter starts.

1.The news is about_____________.

A China

B India

C the US

D Thailand

解析：选C。C细节理解题。根据第一句“Doctors in the US worry about this year’s winter.”可知，这篇新闻主要是关于美国的。故选C。

2.What does the underlined word “It” refer to?

A RSV.

B COVID-19.

C The flu.

D Vaccine.

解析：选A。A词意指代题。根据划线部分前面的“RSV is dangerous for small children.”可知，RSV对幼儿是危险的，它对65岁以上的人来说也很危险。故选A。

3.Why do kids get ill easily?

A Because they like unhealthy food.

B Because they don’t wear warm clothes.

C Because they don’t stay away from sick people.

D Because their immunity is not strong.

解析：选D。D细节理解题。根据第二段倒数第三句的“Children’s immunity is not so strong.”可知，儿童免疫力弱，因此他们更容易生病。故选D。

4.When must American people get the booster vaccine to protect them?

A Before the spring.

B Before the winter.

C In the winter.

D After the winter.

解析：选B。B细节理解题。根据第三段最后一句“They must do it before the winter starts.”可知，美国要求人们在冬天开始前接种强化疫苗预防生病。故选B。

5.In which part of a newspaper can we read the passage?

A Health.

B Food.

C Sports.

D People.

解析：选A。A推理判断题。通读全文可知，本文主要报道了美国医生对今年冬天的COVID、流感和RSV流行情况的担忧，是关于健康方面的文章，可以在健康版块中读到。故选A。