题目内容：

    “Smombies”— people walking while staring at their smartphones are very real and a growing cause for concern. To let people pay more attention to their surroundings to avoid serious accidents, government in a small German town has come up with a more positive solution — embedding (嵌入) traffic lights in the pavement to make them noticed by people always looking down at their phones.

The safety measure was taken. Authorities in Augsburg decided to act, installing ground level traffic lights at two tram (电车) stops last Tuesday. The lights flash red when a tram is coming, or when the regular traffic light turns red. “We realized that the normal traffic light isn't in the line of sight of many pedestrians these days,” said Tobias Hermes, a city official. “So we decided to have an extra set of lights — the more lights we have, the more people are likely to notice them.”

Some Augsburg people appear to be quite happy with the idea. “I think it makes sense,” Jack Smith said, speaking to The Augsburg Alleghenies. “One always sees young people these days running over red lights. This makes it more obvious that you need to stop.”

Others, however, found the need for ground traffic lights unnecessary and even frightening. “I find it scary that smartphone users are so engrossed that they need to install lights in the ground so that they notice the tram coming,” one person told the local paper.

But do this kind of pavement-embedded lights actually work? One interviewed teenager believes not really. “To be honest, I didn't even notice it,” he told The Augsburg Alleghenies. "Maybe it’d be useful at night, but I didn’t realize it was there until just now.”

1.From the text we can know that smombies refer to people          

A.who are fond of walking.

B.who look at phones while walking.

C.whose smartphones are embedded traffic lights.

D.who pay more attention to their surroundings.

2.What can we learn from Tobias Hermes?

A.The tram is the main cause of traffic accidents.

B.The tram's lights should flash while running.

C.Many people can't see normal traffic lights clearly.

D.The pavement-embedded lights are easier to be seen.

3.Which of the following can replace the underlined word “engrossed” in Paragraph 4?

A.Disturbed. B.Scared.

C.Engaged. D.Inspired.

4.What can be a suitable tide for the text?

A.The Serious Smartphones Problems.

B.Advocate People to Celebrate Traffic Rules.

C.The Importance of Ground Traffic Lights.

D.Ground Traffic Lights for People Staring at Their Smartphones.