Passage C
You may think that sailing is a difficult sport,but it is really not hard to learn.You do not need to be strong.But you need to be quick.And you need to understand a few basic rules about the wind.
First,you must ask yourself,"Where is the wind coming from?Is it coming from ahead or behind or from the side?"You must think about this all the time on the boat.The wind direction tells you what to do with the sail.
Let's start with the wind blowing from behind.This means the wind and the boat are going in the same direction.Then you must always keep the sail outside the boat.It should be at a 90?angle(角度)to the boat.Then it will catch the wind best.
If the wind is blowing from the side,it is blowing across the boat.In this case,you must keep the sail half way outside the boat.It should be at a 45?angle to the boat.It needs to be out far enough to catch the wind,but it shouldn't flap(擺動).It shouldn't look like a flag on a flagpole.If it is flapping,it is probably out too far,ant the boat will slow down.
Sailing into the wind is not possible.If you try,the sail will flap and the boat will stop.You may want to go in that direction.It is possible,but you can't go in a straight line.You must go first in one direction and then in another.This is called tacking.When you are tacking.jye.ai must always keep the sail inside the boat.
(1)What should you consider first while sailing?CC
A.Sailors'strength.
B.Wave levels.
C.Wind directions.
D.Size of sails.
(2)The word"It"underlined in Paragraph 4 refers to CC.
A.the boat
B.the wind
C.the sail
D.the angle
(3)Where can you probably find the passage?BB
A.In a music magazine.
B.in a tourist guidebook.
C.In a chemistry textbook.
D.in an official report.
【考點】說明類.
【答案】C;C;B
【解答】
【點評】
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發(fā)布:2024/5/27 14:0:0組卷:1引用:1難度:0.5
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Many of us have read stories or seen films about space-creatures.They come to Earth in spaceships that look like flying saucer(飛碟).These space-creatures do not look like human beings at all,but they are usually very intelligent(聰明).In one film,they were tiny little men with large heads.When they landed on Earth,they knew exactly what to do.They went straight to the President's palace and made him their prisoner!
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Are scientists sure that there is no life on other planets?
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B.Is There Life on Other Planets
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B.all the planets are too far to reach
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