19．People believe that climbing can do good to health．Where can you learn the skills of climbing then？If you think that you have to go to the mountains to learn how to climb，you're wrong．Many Americans are learning to climb in city gyms （體育館）．Here，people are learning on special climbing walls．The climbing wall goes straight up and has small holding places for hands and feet．
How do people climb the wall？To climb，you need special shoes and a harness （保護(hù)帶） around your chest to hold you．There are ropes （繩索） tied to your harness．The ropes hold you in place so that you don't fall．A beginner's wall is usually about 15feet high，and you climb straight up．There are small pieces of metal that stick out for you to stand on and hold on to．Sometimes it's easy to see the next piece of metal．Sometimes，it's not．The most difficult part is to control your fear．It's normal for humans to be afraid of falling，so it's difficult not to feel fear．But when you move away from the wall，the harness and the ropes hold you，and you begin to feel safe．You move slowly until you reach the top．
Climbing attracts people because it's good exercise for almost everyone．You use your whole body，especially your arms and legs．This sport gives your body a complete workout．When you climb，both your mind and your body can become stronger．

21．What can we infer from the passageA？
A．People are fairly interested in climbing nowadays．
B．It is impossible to build up one's body by climbing．
C．People can only learn the skill of climbing outdoors．
D．It is always easy to see holding places in climbing．
22．The most difficult thing to do in wall climbing isB．
A．to tie ropes to your harness          
B．to control your fear
C．to move away from the wall         
D．to climb straight up
23．The word"workout"underlined in the last paragraph most probably meansB．
A．settlement         
B．exercise       
C．excitement        
D．tiredness
24．Why does the author write this passageD？
A．To tell people where to find gyms．
B．To prove the basic need for climbing
C．To encourage people to climb mountains．
D．introduce the sport of wall climbing．

分析 本文是一篇說明文，主要介紹了攀巖這項(xiàng)運(yùn)動(dòng)．很多美國人是在城市體育館學(xué)攀巖的．攀巖需要特殊的鞋、保護(hù)帶，和繩子系在你的安全帶上，繩子在一定位置上約束你使你不會(huì)墜落．攀巖這項(xiàng)運(yùn)動(dòng)吸引著人們，對幾乎每個(gè)人來說都是很好的鍛煉，用了整個(gè)身體特別是胳膊和腿，這項(xiàng)運(yùn)動(dòng)讓整個(gè)身體得到考驗(yàn)，當(dāng)你攀爬時(shí)你的身體和你的意志都會(huì)變得堅(jiān)強(qiáng)．

解答 21．A    推理判斷題．根據(jù)第一段第一行"Peoplebelieve that climbing can do good to health"可知，人們認(rèn)為攀登對健康有好處，故對攀巖很有興趣，故選A．
22．B    細(xì)節(jié)理解題．根據(jù)第二段第五行"The most difficult part is to control your fear"可知，攀巖最困難的是控制你的恐懼感，故選B．
23．B    推理判斷題．根據(jù)最后一段中"You use your whole body，especially your arms and legs．This sportgives your body a complete workout．"可知，攀巖能讓你的胳膊、你的腿你的全身一起得到鍛煉，故"workout"指"exercise"，故選B．
24．D    主旨大意題．縱觀全文可知，文章向讀者介紹了攀巖這項(xiàng)運(yùn)動(dòng)，故選D．

點(diǎn)評 解答細(xì)節(jié)理解題時(shí)，一個(gè)常用的方法就是運(yùn)用定位法，即根據(jù)題干和選項(xiàng)中的關(guān)鍵詞從原文中找到相關(guān)的句子，與選項(xiàng)進(jìn)行比較從而確定答案；推理判斷題既要求學(xué)生透過文章表面文字信息推測文章隱含意思，又要求學(xué)生對作者的態(tài)度、意圖及文章細(xì)節(jié)的發(fā)展作正確的推理判斷，力求從作者的角度去考慮，不要固守自己的看法或觀點(diǎn)．

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