高考英语总复习完形填空训练 九

　　A computer has thousands of electronic parts. They either let current (电源) through or stop it. When the current is on, that is "1" to the __1__ . When the current is __2__ , that is "0". Imagine a kind of __3__ signal (信号) , when the green light shines, it means "Go". When __4__ light shines, it means " __5__ ". A computer can do long and __6__ problems. But it can't work by itself. We must write __7__ the problem. Then we must "program" it. In other words, we must put all the __8__ on a tape. The computer can "read" it __9__ it is put into the __10__ . Holes are punched in a __11__ . The current can go __12__ the holes. There the computer __13__ "1". Where we __14__ punch a hole the __15__ can't go through, and the computer __16__ "0". In the __17__ , the information is "read" __18__ the computer and may be kept by it in " __19__" or put to immediate __20__ .

　　1.  A. machine　 B. box 　 C. room 　D. computer

　　2.  A. on 　 B. in C. off 　 D. away

　　3 . A. traffic 　B. light C. lamp 　D. guiding

　　4.  A. no 　 B. not 　C. the 　D. red

　　5 . A. stop B. stopped 　 C. Stop   D. Stopped

　　6.  A. easy B. difficult　C. simple 　  D. strange

　　7.  A. out 　B. off 　C. down   D. on

　　8.  A. problem 　B. question 　C. news   D. information

　　9.  A. when B. where C. because　  D. as though

　　10. A. machine 　    B. current 　 C. house　D. engine

　　11. A. computer B. tape 　    C. signal 　  D. electronic brain

　　12. A. up 　 B. down 　C. by D. through

　　13. A. read 　 　B. write C. reads D. wrote

　　14. A. doesn't 　 　 B. don't 　 　C. didn't D. wasn't

　　15. A. current   B. tape 　C. machineD. answer

　　16. A. means 　 B. has 　 C. does   D. reads

　　17. A. word 　  B. state 　   C. manner 　  D. condition

　　18. A. by 　 　  B. with 　C. at　 　D. without

　　19. A. heart 　 B. idea　 　  C. thinking 　D. memory

　　20. A. use 　 　 B. used 　C. using D. being used

　　参考答案

　　【答案】 1-5 DCADC　6-10.BADAA 11-15.BDCBA 16-20 DCADA 解析： 第1题，此句意思是：当电流通过时，计算机显示"1"。 第10题，此处 machine代替computer 第16题，上下文对应。 第17题，相当于in this way. 第20题，put to use 投入使用。