1.People usually _______ on the roller coaster in the past.

A laughed

B sat alone

C screamed

D kept quiet

解析：选C。推理判断题。根据文章第一段Now, many theme parks have a new rule. Visitors must not scream on rides. 可知，现在，许多主题公园有了新的规则。游客不得在乘车时尖叫。由此推测过去人们坐过山车时通常会尖叫，故选C。

2.Why do theme parks make the new rule?

A Because screaming is not polite.

B Because the coronavirus breaks out.

C Because visitors don’t like the old rule.

D Because people worry about their safety.

解析：选B。细节理解题。根据文章第一段最后一句The reason is the coronavirus.可知，新规的出台是因为冠状病毒爆发了，故选B。

3.Which is the best way to stop the coronavirus?

A You stay quiet.

B You wear a mask.

C You stay in the air.

D You sit close to others.

解析：选B。细节理解题。根据文章第二段The coronavirus moves in the air. The coronavirus can move more easily when people scream.可知，冠状病毒在空气中移动。当人们尖叫时，冠状病毒可以更容易地迁移，由此说明冠状病毒可以随人们尖叫时呼出的飞沫传播，因此，只有戴好口罩才能有效避免被感染，故选B。

4.Visitors can scream _______ according to the theme park.

A in their hearts

B in the park

C with their eyes closed

D with their parents

解析：选A。细节理解题。根据文章最后一段最后一句The theme park says that visitors can scream in their hearts.可知，主题公园表示，游客可以在他们心中尖叫，故选A。