15．In order to know a foreign language thoroughly（完全地），four things are necessary．First，we must understand the language when we hear it spoken． Secondly，we must be able to speak it ourselves，with confidence（自信） and without hesitation（犹豫）． Thirdly，we must do much reading． Finally，we must be able to write it． We must be able to make sentences that are correct in grammar．
There are no shortcuts to success in language learning． A good memory is a great help，but it is not enough only to memorize the rules from a grammar book． It is not much learning by heart long lists（一览表） of words and their meanings，studying the dictionary and so on． We must learn by using the language．
If we are pleased with a few rules we have memorized，we are not really learning the language． We must"learn through use．"Practice is important． We must practise speaking and writing the language whenever we can．
46． The most important things to learn a foreign language areB．
A．understanding and speaking
B．listening，speaking，reading and writing
C．writing and understanding
D．memorizing and listening
47．Someone hears and writes English very well，but he speaks it very badly． This is becauseD．
A．he doesn't understand the language when he hears it spoken
B．he doesn't have a good memory
C．he always remembers lists of words and their meanings
D．he often hesitates（犹豫） to practise speaking it
48． One can never learn a foreign language well byB．
A． doing much practice
B． studying the dictionary
C． learning through use
D． using the language
49．Which is the most important in learning a foreign language？C
A．A good memory．B． Speaking． C． Practice． D． Writing．
50．"Learn through use"meansD．
A．we use a language in order to learn it
B．we learn a foreign language in order to use it
C．we can learn a language well while we are keeping using it
D．B and C．
分析 本文属于语言的学习与运用类的短文阅读．主要介绍了学习外语需要的四个重要因素：听说读写．关键是在练习中大胆运用，不要死记词汇、背字典，要大胆地练习，学用结合才是关键．
解答 46-50 BDBCD
46：B．细节理解题．第一段清楚介绍了学习好外语的四个步骤，听，说，读和写．故选B．
47：D．细节理解题．文中第一段we must be able to speak it ourselves，correctly with confidence（自信） and without hesitation．说明我们只有毫不犹豫地充满自信地练习才能学好，否则缺乏自信犹豫不决就学不好．故选D．
48：B．细节理解题．根据第二段It is no much use learning by heart long lists（一览表） of words and their meanings，studying the dictionary and so on．可知，单纯地学死记单词及其含义，背词典是学不会英语的．故选：B
49：C．推理判断题．We must"Learn through use"．Practice is important．可知，在学习英语中实践是很重要的．故选C
50：D．句意理解题．根据最后一段中的描述We must practice speaking and writing the language whenever（无论何时） we can．可知，我们学习语言的目的是运用，在反复运用的过程中也就学会了语言．故选D．
点评 阅读理解题时要培养自己快速阅读的习惯，切不可在一些难懂的句式或者词语上耽误过多的时间，可通篇理解，掌握其大意，有针对性的研究题目的要求，对症下药，果断作出决定．最后再检查选择答案是否符合文意．
