第 49至 52 題為題組
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昌 1s the wa “全11mals use sounds and their echoes 同
Echolocation, also kmno%
nu sn 計 Using echolocation, an animalcan Rh
eIT SUIT Ing env
eXamine thelir Surroun
Witt
that humans use sight to accomplish. In many ways,
Submarine's sonar, and this Telationship was actualy
al discovery ofecholocation. In World War Hamajor
etecting submarines. The devices used to pick up those sound
sd pmany sounds from sources that were found to be whales or
'he clicks are produced by ~Passing air through
likeabeam uslng the
pones of各e animaJ's skuJ Whajes
are abJe to control he frequeney oftheir clicks by using a large
名祐資優英文---給屬於薄英的你/妳 “和福交暫N
鋪empranes Called fhe “phonic 和pp生
