大学英语四级选词填空练习题及答案

　　大学英语四级选词填空练习题(一)

　　For example, even with 53 investments, such as the $93 million for wind energy development 54 in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels 55 only about 1% of the market today.

　　Energy and sustainability experts say the answer to our future energy needs will likely come from a lot of 56 both traditional and alternative.

　　A)stable I)exactly

　　B)solutions J)consist

　　C)significant K)comprise

　　D)role L)competitions

　　E)progress M)combined

　　F)marvelous N)challenges

　　G)included O)certainly

　　H)growth

　　大学英语四级选词填空练习题答案

　　47 growth

　　48 stable

　　49 challenges

　　50 certainly

　　51 role

　　52 combined

　　53 significant

　　54 included

　　55 comprise

　　56 solutions

　　大学英语四级选词填空练习题(二)

　　What determines the kind of person you are? What factors make you more or less bold,intelligent, or able to read a map? All of these are influenced by the interaction of yourgenes and the environment in which you were 47 . The study of how genes andenvironment interact to influence 48 activity is known as behavioral genetics. Behavioralgenetics has made important 49 to the biological revolution, providing information about theextent to which biology influences mind, brain and behavior.

　　Any research that suggests that 50 to perform certain behaviors are based in biology iscontroversial. Who wants to be told that there are limitations to what you can 51 based onsomething that is beyond your control, such as your genes? It is easy to accept that genescontrol physical characteristics such as sex, race and eye color. But can genes alsodetermine whether people will get divorced, how 52 they are, or what career they are likely tochoose? A concern of psychological scientists is the 53 to which all of these characteristicsare influenced by nature and nurture(养育), by genetic makeup and the environment.Increasingly, science 54 that genes lay the groundwork for many human traits. From thisperspective, people are born 55 like undeveloped photographs: The image is already captured,but the way it 56 appears can vary based on the development process. However, the basicpicture is there from the beginning.

　　[A] abilities

　　[B] achieve

　　[C] appeal

　　[D] complaints

　　[E] contributions

　　[F] displayed

　　[G] essentially

　　[H] eventually

　　[I] extent

　　[J] indicates

　　[K] proceeds

　　[L] psychological

　　[M] raised

　　[N] smart

　　[O] standard

　　大学英语四级选词填空练习题答案

　　47. M) raised

　　48. L) psychological

　　49. E) contributions

　　50. A) abilities

　　51. B) achieve

　　52. N) smart

　　53. I) extent

　　54. J) indicates

　　55. G) essentially

　　56. H) eventually

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