An international team of researchers from the University of Oxford have found that the way people use the Internet is closely tied to the seasonal movements in the natural world.Their online species searches follow the patterns of seasonal animal migrations （遷徙）.
   Migratory birds（候鳥(niǎo)）flood back to where they reproduce every spring.That migratory behavior is accompanied by some human behavior. "The online searches for migratory species tend to increase in spring when those birds arrive in the United States，" said the lead author John Mittermeier.
   And not just birds.Mittermeier and his team surveyed nearly 2.5 billion search records，for 32，000 species，across 245 languages.They also saw variable search rates for insects，horsetails and flowering plants.Seasonal trends seemed to be widespread in online searching behavior for many species of plants and animals.
   This finding suggests new ways to monitor changes in the world's biological diversity.It also shows new ways to see how much people care about nature，and which species and areas might be the most effective targets for conservation.
   Mittermeier is encouraged by the search results.He commented， "I think there's a concern among conservationists（自然環(huán)境保護(hù)主義者） that people are losing touch with the natural world and that they're not interacting with native species anymore.And so in that sense，it was really exciting and quite unexpected for me to see people's interest closely related to changes in nature."
   Richard Grenyer，Associate Professor from the University of Oxford，says search data is useful to conservation biologists， "By using these big data approaches，we can direct our attention towards the difficult questions in modern conservation：which species and areas are changing，and where are the people who care the most and can do the most to help."

（1）What have researchers found about species searches？

D

D

A．They strengthen ties among people.
B．They affect the animal movements.
C．They differ in language backgrounds.
D．They reflect animal migration seasons.
（2）What is the purpose of writing Paragraph 3？

B

B

A．To summarize the research process.
B．To further support the research findings.
C．To show the variety of species searches.
D．To present researchers' heavy work load.
（3）How does Mittermeier feel about the search results？

C

C

A．Satisfied with online service.
B．Worried about online searching behavior.
C．Amazed at people's care about nature.
D．Sad about people's not getting close to nature.
（4）Why does Richard think such search data is useful？

A

A

A．It helps to aim at conservation targets.
B．It increases interest in big data approaches.
C．It keeps track of trends in biologists' work.
D．It pushes people to solve difficult problems.