You may have heard that humans only use ten percent of their brain, and that if you could unlock the rest of your brainpower, you could do so much more. You could become a super genius, or acquire psychic powers like mind reading.
This “ten-percent myth” has inspired many references in the cultural imagination. In the 2014 movie Lucy, for example, a woman develops godlike powers thanks to drugs that release the previously inaccessible 90 percent of her brain.
Contrary to the ten-percent myth, however, scientists have shown that humans use their entire brain throughout each day.
   Over the years, brain scientists have shown that different parts of the brain are responsible for specific functions, whether it’s recognizing colors or problem solving. Contrary to the ten-percent myth, scientists have proven that every part of the brain is integral for our daily functioning.
   Research has yet to find a brain area that is completely inactive. Even studies that measure activity at the level of single neurons(神经元)have not revealed any inactive areas of the brain.
Many brain imaging studies that measure brain activity when a person is doing a specific task show how different parts of the brain work together. For example, while you are reading this text on your smartphone, some parts of your brain, including those responsible for vision and reading comprehension, will be more active.
   A more direct counter to the ten-percent myth lies in individuals who have suffered brain damage – like through a stroke(中风)– and what they can no longer do, or do as well, as a result of that damage. Ifthe ten percent myth is true, then damage to many parts of our brain shouldn’t affect your daily functioning.
   Studies have shown that damaging a very small part of the brain may have devastating consequences.If someone experiences damage to Broca’s area(布罗卡氏区), for example, they can understand languagebut can’t speak fluently.
In one highly publicized case, a woman in Florida permanently lost her “capacity for thoughts, perceptions, memories, and emotions that are the very essence of being human” when a lack of oxygen destroyed half of her brain.
28.What is the passage mainly about?
A.The ten percent myth is not true.
B.Brain scientists have a long way to go.
C.Human brain is much more powerful than we imagine.
D.All parts of the brain are equally important.
29.Why does the writer mention the movie “Lucy”?
A.To show the power of women. B.To introduce an interesting story.
C.To fight against the ten percent myth. D.To show the influence of ten percent myth.
30.It can be inferred that Broca’s area is responsible for_________.
A.listening. B. writing. C. speaking. D. reading.
  这篇文章反驳了一个长期以来大家相信的谬论，即人脑只被利用了百分之十。科学研究表明，人脑的每一部分都参与到日常活动中。没有发现任何一部分是静止不动的。
28.选A。主旨题。本文就是为了反驳这个谬论。
29.选D。提到这部电影的名称就是为了说明段落主题句This “ten-percent myth” has inspired many references in the cultural imagination.
30. 选C。布罗卡氏区如果收到损伤，病人将只能听无法流利说话。