2015年职称英语考试理工类每日一练(1月5日)

单项选择题
1、 I have been trying to quit smoking.
A．give up
B．pick up
C．build up
D．take up

2、 The document was compiled by the Department of Health.
A．written
B．printed
C．attached
D．sent

3、 That player is eternally arguing with the referee.
A．desperately
B．constantly
C．eventually
D．extensively

4、 Michael is now merely a good friend.
A．largely
B．possibly
C．just
D．rarely

5、 Afterwards there was just a feeling of let-down
A．excitement
B．anger
C．calm
D．disappointment

6、 The book raised a storm of controversy．
A．damage
B．voice
C．doubt
D．argument

7、 She felt that she had done her good deed for the day.
A．homework
B．justice
C．model
D．act

8、阅读短文，回答题。
A．Flying Vertebrate
1    The fossil remains of the first flying vertebrates，the pterosaurs, have intrigued pale-oncologists for more than two centuries. How such large creatures, which weighed in some cases as much as a piloted hang-glider and had wingspan from 8 to 12 meters, solved the problems of powered flight, and exactly what these creatures were reptiles or birds—are among the questions scientists have puzzled over.
2    Perhaps the least controversial assertion about the pterosaurs is that they were reptiles. Their skulls，pelvises, and hind feet are reptilian. The anatomy of their wings suggests that they did not evolve into the class of birds. In pterosaurs a greatly elongated fourth finger of each forelimb supported a wing like membranE．The othe fingers were short and reptilian, with sharp claws. In birds the second finger is the principal strut of the wing, which consists primarily of feathers. If the pterosaurs walked on all fours, the three short fingers may have been employed for grasping. When a pterosaur walked or remained stationary, the fourth finger，and with it the wing，could only turn upward in an extended inverted V shape along each side of the animal's body.
3    The pterosaurs resembled both birds and bats in their overall structure and proportions. This is not surprising because the design of any flying vertebrate is subject to aero dynamic constraints. Both the pterosaurs and the birds have hollow bones, a feature that represents a savings in weight. In the birds, however, these bones are reinforced more massively by internal struts.
4    Although scales typically cover reptiles, the pterosaurs probably had hairy coats. T. H. Huxley reasoned that flying vertebrates must have been warm-blooded because flying implies a high rate of metabolism, which in turn implies a high internal temperaturE．Huxley speculated that a coat of hair would insulate against loss of body heat and might streamline the body to reduce drag in flight. The recent discovery of a pterosaur specimen covered in long, dense, and relatively thick hair like fossil material was the first clear evidence that his reasoning was correct.
5    Efforts to explain how the pterosaurs became airborne have led to suggestions that they launched themselves by jumping from cliffs, by dropping from trees, or even by rising into light winds from the crests of waves. Each hypothesis has its difficulties. The first wrongly assumes that the pterosaurs' hind feet resembled a bat's and could serve as hooks by which the animal could hang in preparation for flight. The second hypothesis seems unlikely because large pterosaurs could not have landed in trees without damaging their wings. The third calls for high waves to channel updrafts. The wind that made such waves however, might have been too strong for the pterosaurs to control their flight once airborne.
It can be inferred from the text that scientist now generally agree that the
A．enormous wingspan of the pterosaurs enabled them to fly great distances
B．structure of the skeleton of the pterosaurs suggests a close evolutionary relation-ship to bats
C．fossil remains of the pterosaurs reveal how they solved the problem of powered flight
D．pterosaurs were reptiles

9、The chemical is deadly to rats but safe to cattle
A．fatal
B．hateful
C．good
D．useful

10、阅读短文，回答题。
C.I’ll Be Bach
2   　Composer David Cope is the inventor of a computer program that writes original works of classical musiC．It took Cope 30 years to develop the softwarE． Now most people can’t tell the difference between music by the famous German composer J. S. Bach （1685-1750） and the Bach-like compositions from Cope’s computer.
3    It all started in 1980 in the United States, when Cope was trying to write an operA．He was having trouble thinking of new melodies, so he wrote a computer program to create the melodies. At first this music was not easy to listen to. What did Cope do? He began to rethink how human beings compose musiC．He realized that composers，brains work like big databases. First, they take in all the music that they have ever hearD．Then they take out the music that they dislikE． Finally, they make new music from what is left. According to Cope, only the great composers are able to create the database accurately, remember it, and form new musical patterns from it.
4　Cope built a huge database of existing musiC．He began with hundreds of works by Bach. The software analyzed the data：it broke it down into smaller pieces and looked for patterns. It then combined the pieces into new patterns. Before long, the program could compose short Bach-like works. They weren't good, but it was a start.
5    Cope knew he had more work to do-he had a whole opera to writE． He continued to improve the softwarE． Soon it could analyze more complex musiC．He also added many other composers, including his own work, to the databasE．
6     A few years later，Cope’s computer program, called “Emmy”，was ready to help him with his operA．The process required a lot of collaboration between the composer and Emmy. Cope listened to the computer’s musical ideas and used the ones that he likeD．With Emmy, the opera took only two weeks to finish. It was called Cradle Falling, and it was a great success! Cope received some of the best reviews of his career, but no one knew exactly how he had composed the work.
7    Since that first opera, Emmy has written thousands of compositions. Cope still gives Emmy feedback on what he likes and doesn't like of her music, but she is doing most of the hard work of composing these days!
The music composed by David cope is about ______.
A．Classical music
B．pop music
C．drama
D．country music

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