鴻圖圖書寒假作業假期作業吉林大學出版社系列答案科目：高中英語 來源： 題型：
【題目】When will the second bus probably leave?
A. At 10:10.B. At 10:20.C. At 10:30.
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科目：高中英語 來源： 題型：
【題目】Where does the woman want to go?
A. The supermarket.B. The kindergarten.C. The book store.
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科目：高中英語 來源： 題型：
【題目】Where does the conversation most probably take place?
A. In a supermarket.B. In a restaurant.C. In the man’s house.
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科目：高中英語 來源： 題型：
【題目】 If you're one of the millions of those who use escalators each year, you are probably deeply familiar with the vertical grooves（豎凹槽）that cover each stair. Few of us have stopped to consider why they exist, though. In fact, it's one of the everyday things we take for granted.
But it is a little complicating when you think about it. Sure, the deep, grey lines make an escalator's metal stairs more appealing to the eye. But regular stairs don't have grooves like these; why do escalators need them? Is it because of the movement?
It turns out those grooves serve a more functional purpose. And, yes, it does have to do with the movement, as well as with general cleanliness! Anyone who has ridden an escalator knows that the steps everlastingly circulate from the top to the bottom. You've surely noticed the ridged yellow lip at the top of the escalator. But here's what you may not have noticed: As an escalator's steps flatten, this ridge—also called the comb plate—sweeps away any trash or litter that might have fallen on the stairs. Those grooves lock the step and comb plate together, which makes it harder for any dangerous materials to slide underneath the lip. This prevents foreign objects from getting stuck in that gap, potentially causing the escalator to stop, or worse, break down completely.
That's not the only reason why the grooves were created, though. They are also a good place for water to pool together, protecting you from a bad fall on the slick surface.
So the next time you step on an escalator, take a moment to appreciate those metal grooves. They exist to make sure you get to your office meeting on time.
【1】What are the first two paragraphs trying to say?
A.Millions of people use escalators every year.
B.Few people think much about the grooves.
C.Escalators are complicated machines.
D.Grooves make the stairs look better.
【2】The ridge is mainly designed to____
A.clean off dangerous objects.
B. keep the stairs in movement.
C.flatten the steps.
D.lock the steps.
【3】What does the underlined word "slick” mean in Paragraph 4?
A.Smooth.B.Sticky.
C.Steep.D.Slippery.
【4】What's the passage mainly about?
A.The importance of escalators.
B.The reasons for grooves on stairs.
C.The look of grooves in escalators.
D.The safe ways of riding escalators.
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科目：高中英語 來源： 題型：
【題目】Either you or the headmaster __________ prize to these gifted students at the meeting.
A. is handing out
B. are to hand out
C. are handing out
D. is to hand out
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科目：高中英語 來源： 題型：
【題目】How can the woman get Kate’s phone number?
A. The man will get the new number for her.
B. She can get the new number by calling the old one.
C. Kate is still using the old one, so she can call the old one.
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【題目】Many people have come to realize that they should go on __________ balanced diet and make room in their day for exercise.
A. a；/ B. the;a C. the;the D. /;a
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科目：高中英語 來源： 題型：
【題目】 Teenagers __________ their health because they play computer games too much.
A. have damaged B. are damaging C. damaged D. will damage
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