大学英语基础练习题

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1. the first olympic games ____ certainly before 700 b. c.
a. held   b. occurred  c. took place  d. happened
2. although the sun is approximately 93 million miles away, its says ____ the earth.
a. warms  b. warmed  c. warm   d. has warmed 
3. a rainbow is seen only during showers, when rain is falling and the sun is shining ____ the same time.
a. on   b. at    c. in    d. for
4. ____ 1866 africa has produced nearly all the world's diamonds.
a. in   b. before   c. with  d. since
5. look ____! there is a car coming.
a. for  b. in  c. at   d. out
6. he ____ making his own speeches to listening to other people's.
a. like  b. loves c. prefers  d. tries
7. this kind of bicycle is a best-seller ____.
a. at the present   b. at present
c. in the present   d. in present
8. watson won the game and was ___ with the silver cup.
a. given  b. awarded  c. paid  d. presented
9. this important change in women's life pattern has only recently begun to have its full ____ on women's economic position.
a. effect  b. defect   c. efficacy d. efficiency
10. when they were back on earth, everyone was happy to see them ____.
 a. safely  b. safe   c. safety  d. save
11. farmers raise grain, fruit, vegetables, and milk and ____ animals that feed the nation.
 a. meat-producing   b. producing-meat
 c. meat-produced   d. produced-meat
12. a surprising fact about the elephant is that it is very ____ to cold.
 a. sensible   b. sensitive  c. sensory  d. sensuous
13. this flower smells quite ____.
 a. nicely   b. fragrant  c. fragrantly  d. sweetly
14. the reason i'm here is ____ i had a bit of an auldent coming pack from a party in london last week.
15. i cannot praise him ____ highly. indeed, you will be fortunate if you can get him to work for you.
 a. very   b. much   c. too    d. so
16. no one ___ the door, but voices could he beard inside the house.
 a. answered for   b. answered
 c. answered at    d. answered to
17. the mail was ____ for several days because of the earthquake.
 a. held down  b. held up  c. held out  d. held to
18. we are not afraid to ____ against wrong ideas.
 a. speak of  b. speak out  c. speak for  d. speak to
19. ___ the good weather, we had a nice picnic.
   a. thank to  b. thanking  c. thanks to  d. thanks for
20. ____ americans are turning to the solar power tapping the strength of the sun for energy.
 a. little by little   b. little and little
 c. little to little   d. little after little
     snowflakes
one of the most beautiful objects formed by is a snowflake---it would take most of us a long time to "design" a shape as  2  as a single snowflake. yet in an ordinary snowstorm, billions 3  billions of snowflakes fall to the earth-and  4  two are exactly  5 .
snow, as you may know, is just frozen water.  6 , you may ask  7  poos is is frozen it? the unte  8  is caused by the fact that the many surfaces in all the ice crystals that make up a snowflake reflect light, and we therefore see it  9  white.
did you know that in many parts of the world snow has fallen that has seen blue, green red, and ever plaek? this is  10  the presence of certain dust in the air around which the snowflakes formed.
1. a. man  b. nature  c. water   d. weather
2. a. beautifully b. beautiful  c. skillfully  d. skillful
3. a. of   b. upon   c. on   d. out of
4. a. no   b. not   c. never   d. nowhere
5. a. like    b. same   c. alike   d. similar
6. a. in fact  b. after all  c. for example d. above all
7. a. how  b. whether  c. when   d. why
8. a. shape  b. occupnence c. form   d. appearance
9. a. as   b. for   c. like   d. to be
10. a. due to  b. with regard to c. because of d. according to

1.
2. the young or lven ____ (stop) by the policeman if he dnives that was.
3. the woman lay on the floor, her face ____ (cover) with a cloth.
4. it ____ (be) only small children who behave that way.
5. as soon as she finished ____ (read) the book. jenny passed it on to her brother.
1. we found the room too small ____ (hold) so many people.
2. i hate to see letters ____ (write) in pencil.
3. i wish you ____ (teach) me how to swim last year.
4. if it ____ (be) not for their support, we would be in a difficult position.   
5. so loudly ____ he ____ (speak) that even people in the next room could hear him.
    i (abraham lincoln) was born on february 12, 1809, in hardin county. kentucky. my parents were both born in virginia, of undistinguished families — second families, perhaps i should say. my mother, who died is my tenth year, was from a family named hanks, who now live in illinois.
my father, at the death of his father, was six years old, and he grew up literally without education. he moved from kentucky to indiana when i was seven. we reached our home about the time the state came into the union. it was a wild region, with bears and other wild animals still in the woods. thee were some so-called schools, but no other qualification was ever required of a teacher beyond "reading, writing, and adding." if a stranger supposed to understand latin happened to live for a time in the neighborhood, he was looked on as a wizard (巫师). there was absolutely nothing to excite ambition for education. of course, when i grew up, i did not know much. still, somehow, i could read, write, and add, but that was all. the little advance i have now made upon this store of education, i have picked up under the pressure of necessity.
i was raised to farm work, which i continued until! was twenty-two. at twenty-one, i came to illinois. i remained there for a year as clerk in a store. then the black hawk war came: i was elected a captain of volunteers. a success which gave me more pleasure than any i have had since. i went into the campaign (竞选运动). ran for the legislature（议会）the same year (1832), and was defeated — the only time i have ever been rejected by the people. in the next and the three succeeding elections i was elected to the legislature. during that period, i studied law, and moved to springfield to practice it. in 1846 i was elected to congress. from 1849 to 1854 i practiced law harder than ever before. i was losing interest. in politics when the repeal （废除）of the missouri compromise (米苏里妥协) aroused me again. what i have done since then is proudly well known.
if any personal descri