1. We take our skin for granted until it is burned ________ repair.

　　A） beyond B） for C） without D） under

　　2. The computer revolution may well change society as ______ as did the Industrial Revolution.

　　A） certainly B） insignificantly C） fundamentally D） comparatively

　　3. A lot of ants are always invading my kitchen. They are a thorough ________.

　　A） nuisance B） trouble C） worry D） anxiety

　　4. As we can no longer wait for the delivery of our order， we have to ________ it.

　　A） postpone B） refuse C） delay D） cancel

　　5. Young people are not ________ to stand and look at works of art； they want art they can participate in.

　　A） conservative B） content C） confident D） generous

　　6. Most broadcasters maintain that TV has been unfairly criticized and argue that the power of the medium is ________.

　　A） granted B） implied C） exaggerated D） remedied

　　7. The clothes a person wears may express his ________ or social position.

　　A） curiosity B） status C） determination D） significance

　　8. By law， when one makes a large purchase， he should have ________ opportunity to change his mind.

　　A） accurate B） urgent C） excessive D） adequate

　　9. The early pioneers had to ________ many hardships to settle on the new land.

　　A） go along with B） go back on C） go through D） go into

　　10. I didn‘t know the word. I had to ________ a dictionary.

　　A） look out B） make out C） refer to D） go over

　　11. There are signs ________ restaurants are becoming more popular with families.

　　A） that B） which C） in which D） whose

　　12. I think I was at school， ________ I was staying with a friends during the vacation when I heard the news.

　　A） or else B） and then C） or so D） even so

　　13. It is said that the math teacher seems ________ towards bright students.

　　A） partial B） beneficial C） preferable D） liable

　　14. In order to show his boss what a careful worker he was， he took ___ trouble over the figures.

　　A） extensive B） spare C） extra D） supreme

　　15. Everybody ________ in the hall where they were welcomed by the secretary.

　　A） assembled B） accumulated C） piled D） joined

　　16. Putting in a new window will ________ cutting away part of the roof.

　　A） include B） involve C） contain D） comprise

　　17. In the _____ of the project not being a success， the investors stand to lose up to $30 million.

　　A） face B） time C） event D） course

　　18. The British constitution is ________ a large extent a product of the historical events described above.

　　A） within B） to C） by D） at

　　19. I suggested he should ________ himself to his new conditions.

　　A） adapt B） adopt C） regulate D） suit

　　20. Cancellation of the flight ________ many passengers to spend the night at the airport.

　　A） resulted B） obliged C） demanded D） recommended

　　21. Without proper lessons， you could ________ a lot of bad habits when playing the piano.

　　A） keep up B） pick up C） draw up D） catch up

　　22. Everything we eat and drink contains some salt； we can meet the body‘s need for it from natural sources without turning ________ the salt bottle.

　　A） up B） to C） on D） over

　　23. He always did well at school ________ having to do part-time jobs every now and then.

　　A） in spite of B） regardless of C） on account of D） to case of

　　24. ________ receiving financial support from family， community or the government is allowed， it is never admired.

　　A） As B） Once C） Although D） Lest

　　25. All the key words in the article are printed in _______ type so as to attract readers‘ attention.

　　A） dark B） dense C） black D） bold　

　　26. I didn‘t ________ to take a taxi but I had to as I was late.

　　A） assume B） suppose C） mean D） hope

　　27. The hours ________ the children spend in their one-way relationship with television people undoubtedly affect their relationships with real-life people.

　　A） in which B） on which C） when D） that

　　28. In Disneyland every year， some 800，000 plants are replaced because Disney refused to ________ signs asking his “guests” not to step on them.

　　A） put down B） put out C） put up D） put off

　　29. ________ difficulties we may come across， we‘ll help one another to overcome them.

　　A） Wherever B） Whatever C） However D） Whenever

　　30. On New Year‘s Eve， New York City holds an outdoor ________ which attracts a crowd of a million or more people.

　　A） incident B） event C） case D） affair

　　KEY：Unit 13

　　1-5 ACADB 6-10 CBDCC 11-15 AAACA 16-20 BCBAB 21-25 BBACD 26-30 CDCBB