I didn' t know anything about any of the books so my choice was quite________.
A．arbitrary
B．artificial
C．articulate
D．arduous
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Paper--More than Meets the Eye
A) We are surrounded by so much paper and card that it is easy to forget just how complex it is. There are many varieties and grades of paper materials， and whilst it is fairly easy to spot the varieties， it is far more difficult to spot the grades.
B) It needs to be understood that most paper and card is manufactured for a specific purpose， so that whilst the corn-flake packet may look smart， it is clearly not something destined for the archives. It is made to look good， but only needs a limited life span. It is also much cheaper to manufacture than high grade card.
C) Paper can be made from an almost endless variety of cellulose-based material which will include many woods， cottons and grasses or which papyrus is an example and from where we get the word "paper". Many of these are very specialized， but the preponderance of paper making has been from soft wood and cotton or rags， with the bulk being wood-based.
Paper from Wood
D) In order to make wood into paper it needs to be broken down into fine strands. Firstly by powerful machinery and then boiled with strong alkalies such as caustic soda， until a fine pulp of cellulose fibers is produced. It is from this pulp that the final product is made， relying on the bonding together of the cellulose into layers. That， in a very small nutshell， is the essence of paper making from wood. However， the reality is rather more complicated. In order to give us our white paper and card， the makers will add bleach and other materials such as china clay and additional chemicals.
E) A further problem with wood is that it contains a material that is not cellulose. Something called lignin. This is essential for the tree since it holds the cellulose fibres together， but if it is incorporated into the manufactured paper it presents archivists with a problem. Lignin eventually breaks down and releases acid products into the paper. This will weaken the bond between the cellulose fibers and the paper will become brittle and look rather brown and careworn. We have all seen this in old newspapers and cheap paperback books. It has been estimated that most paper back books will have a life of not greater than fifty years. Not what we need for our archives.
F) Since the lignin can be removed from the paper pulp during manufacture， the obvious question is "why is it left in the paper?" The answer lies in the fact that lignin makes up a considerable part of the tree. By leaving the lignin in the pulp a papermaker can increase his paper yield from a tree to some 95%. Removing it means a yield of only 35%. It is clearly uneconomic to remove the lignin for many paper and card applications.
G) It also means， of course， that lignin-free paper is going to be more expensive， but that is nevertheless what the archivist must look for in his supplies. There is no point whatsoever in carefully placing our valuable artifacts in paper or card that is going to hasten
their demise. Acid is particularly harmful to photographic materials， causing them to fade and is some cases simply vanish!
H) So， how do we tell a piece of suitable paper or card from one that is unsuitable? You cannot do it by simply looking， and rather disappointingly， you cannot always rely on the label. "Acid-free" might be true inasmuch as a test on the paper may indicate that it is a neutral material at this time. But lignin can take years before it starts the inevitable process of breaking down， and in the right conditions it will speed up enormously.
I) Added to this， as I have indicated earlier， paper may also contain other materials added during manufacture such as bleach， china clay， chemical whiteners and size. This looks like a bleak picture， and it would be but for the fact that there are suppliers who will guarantee the material that they sell. If you want to be absolutely sure that you are storing in， or printing on， the correct material then this is probably the only way.
J) Incidentally， acids can migrate
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The term “glass ceiling” was first used by the Wall Street Journal to describe the apparent barriers that prevent women from reaching the top of the corporate ________.
A) seniority
B) superiority
C) height
D) hierarchy
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Passage Two：Questions 26 to 30 are based on the following passage. When school officials in Kalkaska, Michigan, closed classes last week, the media flocked to the story, portraying the town’s 2,305 students as victims of stingy (吝啬的) taxpayers. There is some truth to that; the property-tax rate here is one-third lower than the state average. But shutting their schools also allowed Kalkask’s educators and the state’s largest teachers’ union, the Michigan Education Association, to make a political point. Their aim was to spur passage of legislation Michigan lawmakers are debating to increase the state’s share of school funding.
It was no coincidence that Kalkaska shut its schools two weeks after residents rejected a 28 percent property-tax increase. The school board argued that without the increase it lacked the $1.5 million needed to keep schools open.
But the school system had not done all it could to keep the schools open. Officials declined to borrow against next year’s state aid, they refused to trim extra curricular activities and they did not consider seeking a smaller—perhaps more acceptable—tax increase. In fact, closing early is costing Kalkaska a significant amount, including $600,000 in unemployment payments to teachers and staff and $250,000 in lost state aid. In February, the school system promised teachers and staff two months of retirement payments in case schools closed early, a deal that will cost the district $275,000 more.
Other signs suggest school authorities were at least as eager to make a political statement as to keep schools open. The Michigan Education Association hired a public relations firm to stage a rally marking the school closing, which attracted 14 local and national television stations and networks. The president of the National Education Association, the MEA’s parent organization, flew from Washington, D. C., for the event. And the union tutored school officials in the art of television interviews. School supervisor Doyle Disbrow acknowledges the district could have kept schools open by cutting programs but denies the moves were politically motivated.
Michigan lawmakers have reacted angrily to the closings. The state Senate has al ready voted to put the system into receivership (破产管理) and reopen schools immediately; the Michigan House plans to consider the bill this week.
第26题：We learn from the passage that schools in Kalkaska, Michigan, are funded ________.
A) by both the local and state governments
B) exclusively by the local government
C) mainly by the state government
D) by the National Education Association
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Government agencies and the private sector often use IDPs to________
A.bring into full play the skills and expertise of their postdoctoral researchers
B.help employees make the best use of their abilities to achieve their career goals
C.place employees in the most appropriate positions
D.hire the most suitable candidates to work for them
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When construction can begin depends on how soon the ________ of the route is completed.
A．survey
B．identity
C．orientation
D．conviction