Question

12．You may think that sailing is a difficult sport，but it is really not hard to learn it．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）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 （摆动）．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．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，you must always keep the sail inside the boat．

29．What should you consider first while sailing？D
A．Wave levels．
B．Size of sails．
C．Sailors'strength．
D．Wind directions．
30．What does the word"It"underlined in Paragraph 4 refer to？C
A．The boat．B．The wind．C．The sail．D．The angle．
31．What do you have to do when sailing against the wind？A
A．Tack the boat．
B．Lower the sail．
C．Move in a straight line．
D．Allow the sail to flap．
32．Where can you probably find the text？C
A．In a physics textbook．
B．In a tourist guidebook．
C．In a popular magazine．
D．In an official report．

Answer 1

分析 本文是一篇说明文．文章介绍了帆船运动的一些常识，进行帆船运动必须掌握风向，风向决定着帆船的运动速度．后文分别就顺风行驶、侧风行驶和逆风行驶进行了阐述．

解答 29．D   细节理解题．根据第二段中的"First，you must ask yourself，"Where is the wind coming from？Is it coming from ahead or behind or from the side？""可知，风向是决定帆船最重要因素．
30．C   猜测词义题．根据文章中的"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 （摆动）．"可知，it指代the sail．
31．A   推理判断题．根据文章最后一段中的"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．"所以选A．tack the boat意为：改变船航向．
32．C  推理判断题． 帆船运动是普通的一种体育运动，因此，本文很可能从流行杂志中节选．故选C．

点评 本文是一个人生感悟类阅读，题目涉及多道细节理解题，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．