活记大学英语四级词汇(第三十二期)

　　第三组:amplify, enhance, enlarge,expand,magnify
　　1.Human knowledge has greatly ___ in the last 30 years which enables people to achieve more and live more comfortably.
　　A.enlarged
　　B.expanded
　　C.enhanced
　　D.amplified
　　2.Please ___ a radio signal.
　　A.amplified
　　B.expanded
　　C.enhanced
　　D.enlarged
　　3.The republication of the poet’s most recent works will certainly ___ his national reputation.
　　A.magnify
　　B.expand
　　C.enhance
　　D.amplify
　　4.People often use a loudspeaker to ___ the voice.
　　A.develop
　　B.enlarge
　　C.magnify
　　D.widen
　　5.We must ___ our views by reading.
　　A.amplify
　　B.magnify
　　C.enhance
　　D.enlarge
　　6.The boss is going to ___ retail operations.
　　A.amplify
　　B.magnify
　　C.enhance
　　D.expand
　　7.Mother asked someone to ___ the kitchen.
　　A.amplify
　　B.magnify
　　C.enhance
　　D.enlarge