| 考博易错题（2019/3/5） |
| 第1题：In his ______ to further his knowledge of the universe, man has now begun to explore space. A、attempt B、expedition C、trial D、chase |
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| 第2题：A physical examination is a ______ to joining the army.
A. parliamentary B．preliminary C．elementary D．complementary |
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| 第3题：His talent for music remained latent until his wife bought him a guitar.
A．hidden B．sophisticated C．delicate D．profound |
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| 第4题：Who won the WorldCup 1994 football game What happened at the United Nations How did the critics like the new play (1) an event takes place, newspapers are on the streets (2) the details. Wherever anything happens in the world, reporters are on the spot to (3) the news. Newspapers have one basic (4) , to get the news as quickly as possible from its source, from those who make it to those who want to (5) it. Radio, telegraph, television, and (6) inventions brought competition for newspaper. So did the development of magazines and other means of communication. (7) , this competition merely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the (8) and thus the efficiency of their own operations. Today more newspapers are (9) and read than ever before, competition also led newspapers to branch out into many other fields.Besides keeping readers (10) of the latest news, today’s newspapers (11) and influence readers about politics and other important and serious matters. Newspapers influence readers’ economic choices (12) advertising. Most newspapers depend on advertising for their very (13) . Newspapers are sold at a price that (14) even a small fraction of the cost of production. The main (15) of income for most newspapers is commercial advertising. The (16) in selling advertising depends on a newspaper’s value to advertisers. This (17) in terms of circulation. How many people read the newspaper Circulation depends (18) on the work of the circulation department and on the services or entertainment (19) in a newspaper’s pages.But for the most part, circulation depends on a newspaper’s value to readers as a source of information (20) the community, city, county, state, nation, and world—and even outer space. A、by B、withC、at D、about |
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| 第5题： 3 A、new biotechnology procedure that could become commercially available in as little as two to four years is "transgenosis", which permits scientists to create an animal with spe cific traits by adding, removing, inactivating, or repairing genes in an embryo. The addi tional genes can come from any source. For example, if a gene of interest occurs in mosqui toes say, one that codes for resistance to a certain disease—it can be removed and placed in the embryo of a farm animal, the several strains of commercially useful transgenic farm animals that will probably emerge in the next few years could include leaner pigs, poultry resisting to influenza or other deadly diseases, sheep with wool that is easier to wash, and goats that produce valuable pharmaceuticals in their milk. The simplest way to make transgenic animals is to inject a gene into a one-cell embryo and then implant the embryo in another animal. Under the right conditions, the new gene joins one of the embryo’s strands of genes.Each cell created as the embryo divides gets a copy of the new gene.An alternative technique is to incorporate the gene into a type of virus known as a retrovirus that has been modified so it cannot reproduce itself after ente ring a cell. The virus, which cannot cause disease, delivers the gene to the cell’s nucle us. Often this method is better than gene injection because a retrovirus always delivers just one gene, and the gene is always undamaged and complete. In the first sentence, "to become commercially available" means______.A．this procedure is available only on the market B．this procedure can be used in producing better farm animals C．This procedure can he used to promote business D．People such as farmers can use this procedure in their production |
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