答案:ABDCDA

　　1.The wind is rising.起风了.

　　2.Our wages have been raised recently.最近我们的工资提高了.

　　3.A new problem has arisen.出现了一个新问题.

　　4.He aroused her mothering instincts.他激起了她的母爱本能.

　　5.He arose at 6:30 a.m. as usual.他像平常一样早晨6点半起床.

　　6.The river rose by two feet after the heavy rains.暴雨使河水水位升高两英尺.

　　amplify, enhance, enlarge,expand,magnify都含有一定的"扩大,提高"之意

　　amplify 放大,扩大,增强,指放大,增强(信号等)

　　enhance 提高,增强,指(价格,力量,吸引力,声望)等的增加,提高.

　　enlarge 指体积,大小,范围,能力等方面的增加

　　expand 既可指数量上或体积上的增加,也可用来之前后左右上下任何方向的扩大,也指知识的增长,生意的扩大

　　magnify 指放大,扩大(声音,照片等)

　　答案:BACCDDD

　　1. Human knowledge has greatly expanded in the last 30 years which enables people to achieve more and live more comfortably.过去30年人类的知识已经有了很大的增长,这就使得人们能够取得更大的成就,生活也更舒适了.

　　2. Please amplify a radio signal.请放大无线电信号.

　　3. The republication of the poet’s most recent works will certainly enhance his national reputation.这位诗人最新作品的再版毋庸置疑地会提高他在国内的声望.

　　4. People often use a loudspeaker to magnify the voice.人们常用扩音器来放大声音.

　　5. We must enlarge our views by reading.我们必须以读书来增长见识.

　　6.The boss is going to expand retail operations.老板正打算扩大零售业务.

　　7.Mother asked someone to enlarge the kitchen.妈妈找人来扩大了厨房.