1 . As reported in JAMA Surgery, the researchers discovered that e-scooter(电动摩托车) injury rates had increased dramatically in just four years, rising from 6 per 100,000 in the population to 19 per 100,000. Of the estimated 14,651 e-scooter-related injuries in 2018, 4,658, or 32%, involved the head. “While most people recover from head injuries, there is going to be a subset with long-term disability and life changes,” said Dr. Benjamin Breyer.

Dr. Benjamin Breyer of the University of California, Los Angeles, pointed to a 2019 analysis of the data from two hospitals in Southern California, which found just 4.8% of injured e-scooter riders were wearing helmets.

Dr. Joann Elmore, a professor of medicine at the University of California, Los Angeles, believed that most e-scooter users are probably unaware of the risks. To make the point, she described a photo taken by a colleague. “There were two riders on an e-scooter,” she said. “No one had shoes on. There were no helmets. And the woman in front had a baby in a baby carrier.”

The new report highlights the need for more research on new technologies, said Dr. Guohua Li, a professor of epidemiology(流行病学).

“Just as there is a global network of experts working on infectious diseases, there needs to be a similar program devoted to the surveillance(监视，监察) and prevention of injuries caused by merging technologies products and lifestyles, such as e-scooters, e-sports, etc.,” Li said in an email.

“The challenge for researchers and policymakers is to keep up with the ever-changing society and protect the public from unnecessary harm caused by new technologies and products without hindering innovation,” he added.

1. What can we know from the passage?

A．E-scooter injury rates had increased due to speeding.

B．32% of injured e-scooter riders weren’t wearing helmets.

C．There is a program devoted to the prevention of injuries caused by advanced technologies.

D．Protection and innovation are of equal importance.

2. What can we infer from Dr. Joann Elmore’s comments?

A．She is an anti-scooter.

B．The woman in front was pregnant.

C．She is concerned about the e-scooter users.

D．Most e-scooter riders often drive at high speed.

3. What does the underlined word “hindering” probably mean?

A．Preventing.	B．Limiting.
C．Developing.	D．Making progress.

4. What’s the author’s main purpose of writing the passage?

A．To arouse people’s awareness of the risks and self-protection.

B．To introduce a new way of transport — e-scooters.

C．To ask people not to ride e-scooters any more.

D．To urge policymakers to make laws as soon as possible.