题目

完形填空     We are warned by our teachers not to waste time because time1will never return. I think it quite2. What does time look3? Nobody knows, and we can't see it or touch it and no4of money can buy it. Time is abstract, so we have to5about it.     Time passes very quickly. Some students say they don't have6time to review their lessons. It is7they don't know how to make use of their time. They waste it in going to theatres or playing, and8other useless things. Why do we study every day? Why do we work? Why do most people9take buses instead of walking? The answer is very10. We wish to save time because time is11.     Today we are living in the 21st century. We12time as life. When a person dies, his life ends. Since life is short, we must13our time and energy to our study so that we14be able to work and live well in the future. Laziness is the15of time, for it not only bring us16, but also does other17to us. If it is necessary for us to do our work today,18 we do it today and not19it until tomorrow. Remember that time is much more20. （1） A . lost B . passed C . missed D . used （2） A . important B . true C . interesting D . usual （3） A . for B . like C . after D . over （4） A . amount B . quality C . quantity D . price （5） A . think B . imagine C . examine D . check （6） A . spare B . free C . enough D . much （7） A . that B . why C . because D . certain （8） A . doing B . making C . taking D . getting （9） A . needn't B . have to C . had better D . would rather （10） A . easy B . simple C . stupid D . interesting （11） A . worthless B . priceless C . ready D . little （12） A . look upon B . agree C . think D . believe （13） A . spend B . give C . set D . devote （14） A . must B . should C . may D . would （15） A . helper B . thief C . friend D . teacher （16） A . wealth B . health C . failure D . illness （17） A . danger B . harm C . trouble D . difficulty （18） A . help B . make C . have D . let （19） A . keep B . remain C . manage D . leave （20） A . valuable B . expensive C . worth D . rich 答案：（1）A；（2）B；（3）B；（4）A；（5）B；（6）C；（7）C；（8）A；（9）B；（10）B；（11）B；（12）A；（13）D；（14）C；（15）B；（16）C；（17）B；（18）D；（19）D；（20）A；

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