填空题41) ____________. The synthetic (合成的) polymer (聚合的) device is the first flexible hydrophilie (吸水的) artificial cornea to be produced and inserted into a human. It is the product of 8 years work by researchers at the Lions Eye Institute of the University of WA'S Department of Ophthalmic Biomaterials. 42) ____________. "First, the plastic material used to construct the artificial cornea absorbs water and becomes elastic and soft like human tissue." Prof. Chirial told Australian Science. "A second novel characteristic is that the periphery (外围) is a sponge with pores allowing host tissue to grow into it. Third, the device uses interpenetrating (渗透) polymer networks to link the central transparent area with the non-transparent periphery." 43) ____________. The first recipient (接纳者)of the device, a 79-year-old WA man who was blind in one eye, can now read large print. A further eight patients are awaiting the technically challenging two-step procedure, with the first due to be operated on this month. 44) ____________. Many patients admitted to the trial have experienced rejection of previous human corneal grafts due to an immune reaction or medical syndrome. In others who have had a chemical burn to an eye, the artificial graft offers their only hope of restored vision. A senior opthalmologist with the team, Dr. Geoffrey Crawford, said the artificial cornea was a promising development for people in underdeveloped countries where an absence of eye banks meant that less than 1% of those needing a human corneal graft ever get one. 45) ____________.[A] It is novel in three ways according to its designer, Romanian-trained polymer chemist Professor Trainan Chirial, who set up the department in 1986.[B] The device is designed to replace a diseased or damaged cornea or a failed human graft and can give back sight to some patients.[C] The artificial cornea was made from a transparent matrix of collagen and a synthetic polymer.[D] Before the device can be marketed, an international trial of at least 50 patients in five centers worldwide needs to be completed successfully.[E] However, he conceded that the cost of the device would need to fall dramatically for it to be used in any widespread way.[F] He explained that material in the center and periphery have an identical chemical composition but are produced by different chemical processes, hence their different light-transmitting qualities.[G] Western Australian researchers have patented an artificial cornea with the potential to benefit blind or partially sighted individuals worldwide.

填空题amoral

填空题 of its own　　to classical music emotions of the people　　work long hours A. forced to 1 B. in contrast 2 C. expressing the moods, interest, and 3 D. no prominent style 4 Music comes in many forms; most countries have a style of their own. At the turn of the century when jazz (爵士乐) was born, America had 5 . No one knows exactly when jazz was invented, or by whom, but it began to be heard in the early 1900s. Jazz is America"s contribution to popular music. 6 , which follows formal European traditions, jazz is spontaneous and free-form. It bubbles with energy, 7 . In the 1920s jazz sounded like America, and so it does today. The origins of this music are as interesting as the music itself. American Negroes, or blacks, as they are called today, were the jazz pioneers. They were brought to Southern States as slaves. They were sold to plantation owners and 8 . When a Negro died his friends and relatives formed a procession to carry the body to the cemetery. In New Orleans, a band often accompanied the procession. On the way to the cemetery the band played slow, solemn music suited to the occasion. But on the way home the mood changed. Spirits lifted. Death had removed one of their numbers, but the living were glad to be alive. The band played happy music, improvising (即兴表演) on both the harmony and the melody of the tunes presented at the funeral. This music made everyone want to dance. It was an early form of jazz.

填空题The speech sounds which are in complementary distribution are not always allophones of the same phoneme.

填空题Neither John and his father was able to wake up early enough to catch the morning train. A. and B. to wake up C. early enough D. to catch

填空题Jack: Have you met Miss Jones?Mary: ______

填空题Author____Title____ I used to wonder About here and there I think the distance Is nowhere.

填空题"I don"t remember ______ (hearing/to hear) it before", she murmured.

填空题Translate the following passage into English．(南开大学2009研，考试科目：专业英语) 东方文明的最大特色是知足。西洋近代文明的最大特色是不知足。知足的东方人自安于简陋的生活，故不求物质享受的提高；自安于愚昧，自安于“不识不知”，故不注意真理的发现与技艺器械的发明；自安于现成的环境与命运，故不想征服自然。西方人大不然。他们说“不知足是神圣的”。物质上的不知足产生了今日钢铁世界，汽机世界，电力世界。理智上的不知足产生了今日的科学世界。社会政治制度上的不知足产生了今日的民权世界。神圣的不知足是一切革新一切进化的动力。

填空题The features that define our human languages can be called ______ features.（北二外2006研)

填空题Symbolism is one of the most important characteristics of(1)______"s work The Waste Land. The titles for the(2)______sections of the poem are themselves symbols. "The Burial of the (3)______" obviously stands for the(4)______of the western civilization.

填空题A. Let's give Malia a call B. But I do C. that would be good D. If I remember right E. That's not proper F. Me, neither G. Who knows Mary H. Who would know her favorite groups Helga: I have no idea what to buy for Mary for her birthday. Catharine: (56) ! Would you like to go in and buy her a gift together? Helga: Yes, (57) ! Catharine：We need to think about what she might like．What are her interests? Helga： (58) ，she likes music，skiing and reading． Catharine：You know，maybe we could get her some concert tickets． (59) ? Helga：Her roommate，Malia，might know what her favorite groups are． Catharine：Yeah．Malia would be able to help US choose a concert． Helga： (60) and ask her for her help right now． Catharine：Good! Maybe Malia would like to go in with US on this gift．

填空题A state can be defined as a ______ form of political organization that governs many communities within a relatively large geographic area.(hierarchy)

填空题The telephone，which ______ by Bell in 1876，was a great improvement on the telegraph． 贝尔在1876年发明的电话是对电报的一个很大的改进。