题目内容：

    One in five women and one in eight men are becoming more tired and less productive, according to a new Australian study on mobile phone use.

Led by the Queensland University of Technology in Australia, researchers surveyed 709 mobile phone users across the country aged 18 to 83 and asked them a series of questions based on a similar study 13 years ago. Identifying a phenomenon "technoference (科技干扰)", researchers discovered a significant increase in people blaming their devices for losing sleep, becoming less productive and even getting more aches and pains".

According to the study's lead author Dr Oscar, the issue is so bad that 24 percent of women and 15 percent of men are now considered to be " problematic mobile phone users". "When we talk about technoference, we're referring to the everyday intrusions (侵入)and interruptions that people experience due to mobile phones and their usage," he said. "Our survey found technoference had increased among men and women. For example, self-reports relating to the loss of sleep and productivity showed that these negative outcomes had significantly increased during the last 13 years. This finding suggests that mobile phones are potentially increasingly affecting aspects of daytime functioning due to lack of sleep. "

Compared to a 2005 study, "technoference" issues for 18 to 24-year-old experienced a surprising 40. 9 percent rise, while those aged 25 to 29 also recorded a dramatic increase of 23. 5 percent.

Oscar said that with the number of smartphone users around the world expected to surpass 2. 5 billion before the end of this year, the problem of "technoference" could get even worse. "The speed and depth of smartphone take-up makes our population particularly vulnerable to some of the negative consequences of high mobile phone use." he said. "Rapid technological innovations have led to dramatic changes in today's mobile phone technology, which can improve the quality of life for phone users but also result in some negative outcomes. "

1.How are people affected by technoference according to the text?

A.It makes people addicted to communicating online.

B.It pushes people to work at a fast pace.

C.It causes people to sleep less at night.

D.It brings negative outcomes to people of all ages.

2.Which group are most influenced by smartphones?

A.Young women. B.Young man

C.Children. D.Seniors.

3.What does the underlined word "vulnerable" in paragraph 5 probably mean?

A.Widely spread. B.Easily hurt.

C.Deeply devoted D.Absolutely accustomed.

4.What does the text mainly talk about?

A.The increasing side effects of smartphones.

B.Ways to solve technoference problem.

C.Smartphones and people's happiness.

D.The popularity of smartphones.