语法填空（共10小题； 每小题1.5分，满分15分）
阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为16-25的相应位置上。
Research has shown that motivation is very important in learning a language; you need to be enthusiastic at it and to be interested in it. Different people will have different motives(动机)—the desire  promotion, the hope of being able to study abroad, and the pure intellectual enjoyment are only some of the possible motives. But actually wanting to learn is most important motive of all. Courage is an essential attribute in learning a language.  takes a lot of courage to speak a foreign language either in front of your friends to native speakers, but don’t be afraid of making mistakes—that is the way we learn. Nowadays there are many different forms of English, each with its own construction and accent, and so long as you can make yourself (understand) and can understand what is said to you, you have succeeded in communicating, which is the purpose of any language.
Curiosity is not only a possible motivation, it is also of great help in your learning. Remember that a language is not just a grammatical system. It is the outcome of a certain culture or different cultures. It is no good     (learn) strings of words and lists of grammatical rules unless you know as much as possible about the background of the language. So learn as much as can about the different cultures which influence English—watch television programs, listen to the radio, try to obtain newspapers which
 (write) by native speakers. They will show youa language is really used. English language is not an abstract system. Instead, it is a living form of  (express).