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[2020·À¼ÖÝʵսģÄâ]The effect of climate change extends beyond ruining Earth's environment and our physical safety. A report published this week suggests that climate change has a negative effect on our mental health, too.

The study, published in the journal Proceedings of the National Academy of Sciences of the United States of America (PNAS), links an increase in monthly temperatures to a rise in mental health issues. The experimental evidence stems from meteorological (ÆøÏóѧµÄ) data paired with information collected from nearly 2 million randomly sampled residents in the United States. The data was collected over the span (¿ç¶È) of a decade.

“We find that experiences with hotter temperatures and added rainfall each worsen mental health, that long­lasting warming associates with an increased popularity of mental health issues, and that exposure to tropical cyclones (ÈÈ´øÆøÐý), likely to increase in frequency in the future, is linked to worsened mental health£¬” authors of the study stated. “These results provide added large­scale evidence to the growing link between climate change and mental health.”

The report specifically focused on mental health outcomes due to the effects of environmental stress — such as temperature, rainfall, and tropical cyclones — but other climate change­related issues are likely to affect mental health as well — specifically, the stress and anxiety of knowing natural disasters could be more frequent as temperatures rise.

1£®From the newly­published report, we learn that the climate change may ________.

A£®save a lot of people's lives

B£®cause unbelievable disasters

C£®influence people's mental health

D£®greatly change people's life styles

2£®Why did the author mention “the span of a decade” in Paragraph 2?

A£®To stress the importance of the study.

B£®To show that the study cost too much money.

C£®To explain the difficulties and hardships of the study.

D£®To indicate that the study is objective and believable.

3£®Where can we find some specific results of the study?

A£®In Paragraph 1.¡¡¡¡¡¡¡¡¡¡¡¡B£®In Paragraph 2.

C£®In Paragraph 3.  D£®In Paragraph 4.

4£®What can we infer from the last paragraph?

A£®The study has its limits.

B£®The results of the study aren't satisfactory.

C£®The environmental problems can't be solved.

D£®Mental health is determined by climate change.