Question

阅读理解 　　Sailing may seem like a difficult sport, but it really is not hard to learn．You do not need to be strong．But you do 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 from ahead or behind or from the side?” You must be thinking about this all the time on the boat．The wind direction tells you what to do with the sail⑤． 　　Let’s start with wind blowing from behind．This means the wind and the boat are going in the same direction．(Picture 1)You should let the sail out all the way．It should be a 90 angle(角)to the boat．(Picture 2)Then it will catch the wind best． 　　If the wind is blowing from the side, it is blowing across the boat．(Picture 3)In this case, you must let the sail about half way out．(Picture 4)It should be at about a 45 angle to the boat．It needs to be out far enough to catch the wind, but it shouldn’t be flapping⑥．It shouldn’t look like a flag on a flagpole．If it is flapping, it is probably out too far, and the boat will slow down． 　　Sailing into the wind is not possible．(Picture 5)If you try, the sails will be of no use and the boat will stop．You must go back and forth．(Picture 6)This is called tacking(逆风而行)．When you are tacking, you should bring your sail in all the way．It should be parallel(平行的)to the boat．(Picture 7)This is the most difficult kind of sailing．It is also the most exciting．You have to watch the sail all the time．The wind may change suddenly．Then you must be ready to change the sail． 　　These are the basic rules about wind direction．They may be difficult to follow at first．Sometimes it is difficult to know where the wind is even coming from!But soon you will learn to feel it on your face．Before long, you will also get used to the boat and the sail． 　　But remember－do not get out alone until you really know what you are doing．Sailing boat is fun, but they are not toys! (1) The key point in sailing is to know ________． [　　] A． where the wind is coming from B． the water and the weather C． the sea waves D． how far you have to go (2) If the boat is going north and the wind is blowing from the east, how will the sail be changed? [　　] A． It should be paralleled to the boat． B． It should be about at a 45 angle to the boat． C． It should be at a 90 angle to the boat． D． It should be brought in all the way． (3) What state needs the best skill? [　　] A． Sailing into the wind． B． The wind blows across the boat． C． The wind and the boat are going in the same direction． D． The wind blows from the side of the boat． (4) The purpose of writing this passage is to ________． [　　] A． warn you not to sail alone B． persuade more people to sail for fun C． teach people how to sail in different conditions D． teach people to learn where the wind is from when sailing

Answer 1

答案：1．A;2．B;3．A;4．C;
解析：

(1)	细节理解题。由第一段第五句可知。
(2)	细节理解题。由第三段及picture 4可知。
(3)	推理判断题。由本文第四段可知逆风而行难度最高，因此需要最好的技巧。
(4)	总结归纳题。综观全文，可以看出，本文主要介绍在不同的风向中如何行船。