Humans With Amazing Senses

Which statement expresses a central idea of the article?

• Very few people use echolocation in their daily lives.

• Echolocation is a technique that can be utilized by humans.

• Echolocation has been studied by scientists for many years.

• Some animals are known for using echolocation to find food.

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CCSS.RI.8.2

CCSS.RI.7.2

CCSS.RL.7.2

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How do lines 1–5 contribute to the understanding of the text?

• by showing the widespread use of echolocation by animals

• by giving examples to explain how echolocation works

• by presenting the characteristics of animals that use echolocation

• by describing how each species uses echolocation differently

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CCSS.RI.8.2

CCSS.RI.7.2

CCSS.RL.7.2

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In people who are blind, the visual cortex seems to help

• activate the optic nerve where images are formed

• increase the amount of light reaching the brain

• create images in the brain based on sounds

• make echoes of sounds from clicks

Read this sentence from lines 17 and 18.

Ben says every object in his life talks to him in ways that no one else can hear or understand.

Which quotation best supports this claim?

• ^{“He can find the pole and the backboard on a basketball goal, and tell which is which by the distinctive echo each makes.” (lines 26 and 27)}

• “Even though he can’t see the goal he’s aiming for, he can sink a basket.” (lines 27 and 28)

• “In school, Ben recognizes his classmates by their voices.” (line 41)

• “With the help of Braille books and a talking laptop computer, Ben attends the same classes as sighted students.” (lines 41 through 43)

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CCSS.RI.8.2

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CCSS.RL.7.1

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CCSS.RL.9-10.2

Read Daniel Kish’s claim from line 46.

“I have mental images that are very rich, very complex.”

Which quotation from the article best supports this claim?

• “. . . Kish of Long Beach, Calif., also uses echolocation, and has become an expert on it. . . .” (lines 19 and 20)

• “He was raised to believe he could do pretty much anything. . . .” (lines 44 and 45)

• “. . . Kish varies the pace and volume of his clicks as he walks along. . . .” (lines 48 and 49)

• “. . . what he can tell you about an object’s qualities is sometimes astonishingly thorough.” (lines 49 and 50)

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CCSS.RL.7.1

CCSS.RL.8.1

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CCSS.RI.8.8

How do lines 51 through 53 develop a key concept of the article?

• by using a comparison to suggest the echolocation potential of humans

• by demonstrating that humans use echolocation more effectively than animals do

• by describing why using echolocation benefits bats and dolphins in unique ways

• by showing that scientists need more time to study echolocation techniques

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CCSS.RI.8.2

CCSS.RI.7.2

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Echolocation used by humans is distinct from echolocation used by animals because animals can

• create louder clicking noises

• distinguish among more sounds

• see objects that are farther away

• locate objects that are smaller in size

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CCSS.RL.5.3

CCSS.RL.6.3

CCSS.RL.7.3

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CCSS.RL.9-10.3