正确。

　　3．What is not mentioned(提及) in the passage？__C__

　　A．Whether there are differences between British English and American English.

　　B．Whether British English and American English are one language or two.

　　C．How the differences between British English and American English came about.

　　D．How important the differences are.

　　解析：细节题。在第二段中提及了两国英语之间的确存在着差异；文章最后一句话告诉我们这是一种语言，最后一段也说了这种差异是多么重要。唯独没有提及这种差异是如何产生的。故C项正确。

　　4．Most __B__ say "Do you have a watch？"

　　A．British people B．Americans

　　C．children D．teachers

　　解析：细节题。根据第二段第四句话Americans say"in the hospital" and "Do you have a pen？"说明Do you have a watch？是讲美国英语的人所说。故B项正确。

　　5．According to this passage, British people and Americans have __A__ difficulty in understanding each other.

　　A．little B．much

　　C．some D．great

　　解析：推理题。根据文章最后一段For the most part, British and American English are the same language. 说明这是一种语言，那么这两国人在理解对方的语言方面没有什么困难，故A项正确。

　　Ⅳ.完形填空阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。

　　If you are learning English because you're going to travel in England and wish to be__1.C__there, don't try to speak English perfectly，__2.A__ if you do so, no one will understand you. In London ninety－nine in every hundred people speak__3.B__English. You may say that__4.D__they don't speak English well themselves, they can__5.C__understand it when it is well spoken. They__6.B__when the speaker is English. But when the speaker is a__7.A__,_the better he speaks, the__8.C__it is to understand him.

No foreigner can__9.C__stress(重读)the syllables(音节)and make the tone(声调)__10.D__and fall in question and__11.B__ exactly as a__12.A__ does.__13.D__the first thing