题型：阅读选择 题类： 难易度：普通
浙江省慈溪市西部片区2024学年九年级上学期期中英语试题
How do blind people get around safely? Some people use special guide dogs. A well-trained dog knows how to help its owner cross busy streets and get from place to place. Some people use long white canes（手杖）to help them get around.
Guide dogs and canes are helpful, but there must be a better way for blind people to get around. A scientist in England thought so. His name is Waters and he studies bats（蝙蝠）. He knows that bats are able to fly in the dark. Besides, he knows that bats go by using sound to "see". Dr. Waters wondered if people could do something similar.
Bats make sounds as they fly. These sounds travel in waves（波）in the air. When the waves hit an object such as a tree or house, they bounce back（反射回来）. The waves travel back to the bat's ears. A bat learns the location and shape of objects around it.
Dr. Waters talked to other scientists, including Withington from America and Hoyle from Germany. They worked together and invented a new kind of cane. They called it a "bat cane" because their idea started with bats. The new cane has a computer in the handle（手柄）. ▲ The sound waves hit objects and echoes（回声）back. This causes the handle to make sounds, which humans can hear.
With a little training, a person using the cane can easily tell where objects are and can "see" with sound!
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clear your mind wake up take a nap a short time how long |
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According to Forbes, a mid-afternoon nap can {#blank#}2{#/blank#}, increase your energy and help you study even better. But {#blank#}3{#/blank#}should a nap last? The proper time should be between 10 and 30 minutes, Peter Venn, a sleep expert said.
Sleeping for {#blank#}4{#/blank#}, such as five minutes or so, is not helpful. That's just not enough time to rest. But if you sleep for too long, you may {#blank#}5{#/blank#}feeling uncomfortable.
In the hug of their love so strong, we find a place where we truly belong (属于). Parents, brothers, and sisters so dear, anytime, they are always near. Taking us through life is a hard road, their support takes away our load (压力). With smiles and cries, we face each____, together, in this relation (关系) that never goes away. In their eyes, we see something clear, it seems that love is always there. In their arms, we find somewhere to rest, somewhere we are truly blessed (保佑). |
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