Female birds sing，too，but scientists tend to tune in to male birdsong and ignore female songs.It highlights a long-standing bias （偏見(jiàn)） and helps us think about why that bias persists （持續(xù)）.
    Since the beginning of modern birdsong research，the field has focused on male songbirds.Any serious birder could tell you that females do sing，sometimes as frequently as males.However，early birdsong researchers tended to be men.Men are significantly less likely than women to lead research projects studying female songs.Thus，we are missing key behaviors as a result of historical biases caused by a lack of diverse participation in science.
    So how do we make science welcoming and accessible for all？We need to communicate better with nonscientists.Engaging the public in science is essential for basic science findings that influence how we perceive the world around us.
    For example，understanding that female birds do sing matters not only to scientists but also to the billions of people who hear the sounds of wild birds every day.In many species，males and females look similar from a distance，but can be distinguished by ear.Paying close attention to which sounds each sex makes and thinking about why they might be producing them opens up a richer window into the environment around us.It turns out female birds use songs for all the same reasons male birds do：to signal individual identity，defend valuable territories and attract potential mates.
    Public awareness of female birdsong has the potential to change the science itself.Apps like eBird collect millions of public observations and audio recordings of birds every year.Increasing public engagement and involvement with research promises to benefit the scientific community and society more broadly.In many cases，scientists and experts already have strongly held biases about the way the world works，and these biases allow mistaken conclusions to persist.Public observers often make better observers of the world around them because they lack preconceived ideas.
    Female birds sing!We welcome a future where research and communication combine to improve our understanding of the world around us and deepen our connections to each other and the natural world.

（1）What does the second paragraph mainly talk about？

B

B

A．Who is to blame for the long-standing bias.
B．Why female birdsong is long ignored by scientists.
C．What contributes to diverse participation in science.
D．How men have conducted modern birdsong research.
（2）Why is it important for us to be aware of female birdsong？

C

C

A．It will enable us to become real scientists.
B．It will help us distinguish bird species by ear.
C．It will expand our understanding of the world.
D．It will make advanced science accessible for all.
（3）What does the underlined word "preconceived" mean in Paragraph 5？

A

A

A．Biased.
B．Creative.
C．Mistaken.
D．Varied.
（4）Which of the following is a suitable title for the text？

A

A

A．Why we Didn't Know That Female Birds Sing？
B．Advancing Science：How Bias Leads Us Forward
C．New Research Has Found Female Birds Sing Too!
D．A Case Study of Gender Bias in Science Reporting