阅读理解 Turn on the TV or scroll through Instagram, and it's not difficult to find a sea of blond politicians, news commentators, celebrities, and social-media influencers. Beyonce, Ariana Grande, Kim Kardash-ian, and Justin Bieber have all, at some point, traded their dark locks for golden hues. Hillary Clinton, the first woman to get a presidential nomination from a major political party, colored her hair blond. And in the administration of Donald Trump alone, there's the president himself, Ivanka Trump, Kellyanne Conway, Kirstjen Nielsen, Betsy DeVos, and Linda McMahon—even Hope Hicks highlighted her brunette hair when she served as communications director.
Why, exactly, is blond hair so popular in America? The poet Claudia Rankine, the author of Citizen: An American Lyric (2014) , and the photographer and filmmaker John Lucas were first inspired to explore the prevalence of blond hair—dyed-blond hair, in particular—in the months leading up to the 2016 presidential election.
" The minute I started looking, it was interesting to see how much blondness there was," Rankine tells me, pointing to Clinton and Trump as examples. " It seemed that everyone from Asian men to white women were dyeing their hair. " Armed with an iPhone and a voice recorder, Rankine and Lucas spent two years photographing and interviewing around 100 people with dyed-blond hair wherever they were— London and New York, the Republican National Convention and Afropunk, restaurants and museums.
But naturally fair hair is uncommon: An estimated 2 percent of the world's population—and 5 percent of white Americans—is actually towheaded. Blond hair is the result of a genetic mutation typically associated with northern Europeans, but it has also been seen in a small percentage of Aboriginal Australians, northern Africans, and Asians.
Still, people across continents have been coloring their hair for centuries with products like lemon juice, hydrogen peroxide, and henna. The Golden Age actress Jean Harlow, the original " platinum blond" starlet of the '30s, went so far as to use bleach, peroxide, ammonia, and Lux soap flakes to achieve her shade. And by 1956, when Clairol released its first at-home hair-coloring kit that could " lighten, tint, condition, and shampoo hair in one step," blond hair became accessible to the American masses.

单选题 31.The underlined part "traded their dark locks for golden hues" most probably means that______.

单选题 32.Why is blond hair so popular in America according to the passage?

单选题 33.Who did Rankine and Lucas interview?

单选题 34.How many people are naturally blond in the world?

单选题 35.Which of the following is NOT the method people used to dye their hairs?