题目

小红同学喜欢利用复读机进行英语听力训练，在音量不变的情况下，如果让复读机先正常播放一段录音，然后再快速播放同一段录音，则发出的声音 A．响度增大，音调不变              B．响度减小，音调不变 C．响度不变，音调升高              D．响度不变，音调降低 答案：C根据下面每句句意、汉语提示及英语解释，在句子右边的横线上写出空白处所缺单词的正确形式。每空一词。 1. Most people in Britain have small ________ (花园) at the backs of their houses. 2. English is a working ________ (语言) in the United Nations. 3. Eating too many ________ (甜的) things bad for your teeth.  4. Having good ________ (the first meal of the day) is very important. 5. Hurry up, or you'll ________ (fail to catch) the school bus.