答案:ABDCDA

　　1.The wind is rising.起風了.

　　2.Our wages have been raised recently.最近我們的工資提高了.

　　3.A new problem has arisen.出現了一個新問題.

　　4.He aroused her mothering instincts.他激起了她的母愛本能.

　　5.He arose at 6:30 a.m. as usual.他像平常一樣早晨6點半起床.

　　6.The river rose by two feet after the heavy rains.暴雨使河水水位升高兩英尺.

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

　　amplify 放大,擴大,增強,指放大,增強(信號等)

　　enhance 提高,增強,指(價格,力量,吸引力,聲望)等的增加,提高.

　　enlarge 指體積,大小,范圍,能力等方面的增加

　　expand 既可指數量上或體積上的增加,也可用來之前后左右上下任何方向的擴大,也指知識的增長,生意的擴大

　　magnify 指放大,擴大(聲音,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.過去30年人類的知識已經有了很大的增長,這就使得人們能夠取得更大的成就,生活也更舒適了.

　　2. Please amplify a radio signal.請放大無線電信號.

　　3. The republication of the poet’s most recent works will certainly enhance his national reputation.這位詩人最新作品的再版毋庸置疑地會提高他在國內的聲望.

　　4. People often use a loudspeaker to magnify the voice.人們常用擴音器來放大聲音.

　　5. We must enlarge our views by reading.我們必須以讀書來增長見識.

　　6.The boss is going to expand retail operations.老板正打算擴大零售業務.

　　7.Mother asked someone to enlarge the kitchen.媽媽找人來擴大了廚房.