2022英语专业四级完形填空题目集锦（24）

2022英语专业四级完形填空题目集锦（24）

　　专四备考中，掌握一些英语专四备考攻略，可以帮助大家更高效的备考英语专四，那么具体的这些攻略都有哪些?下面小编为大家整理了“2022英语专业四级完形填空题目集锦（24）”，希望同学们可以更好的进行积累训练，在接下来的专四考试中，能够顺利完成考试。

　　A novel way of making computer memories， using bacteria FOR half a century，

　　the (1) __________of progress in the computer industry has been to do more with

　　less.Moore's law famously observes that the number of transistors which can be

　　crammed into a given space (2)__________ every 18 months.

　　The amount of data that can be stored has grown at a similar rate. Yet as

　　(3)__________ get smaller， making them gets harder and more expensive.

　　On May 10th Paul Otellini， the boss of Intel， a big American chipmaker， put

　　the price of a new chip factory at around $10 billion.

　　Happily for those that lack Intel's resources， there may be a cheaper

　　option—namely to mimic Mother Nature，

　　who has been building tiny (4)__________， in the form of living cells and

　　their components， for billions of years， and has thus got rather good at it. A

　　paper published in Small， a nanotechnology journal ， sets out the latest example

　　of the (5)__________.

　　In it， a group of researchers led by Sarah Staniland at the University of

　　Leeds， in Britain， describe using naturally occurring proteins to make arrays of

　　tiny magnets，similar to those employed to store information in disk drives.The

　　researchers took their (6)__________ from Magnetospirillum magneticum， a

　　bacterium that is sensitive to the Earth's magnetic field thanks to the presence

　　within its cells of flecks of magnetite， a form of iron oxide. Previous work has

　　isolated the protein that makes these miniature compasses. Using genetic

　　engineering， the team managed to persuade a different bacterium—Escherichia

　　coli， a ubiquitous critter that is a workhorse of biotechnology—to (7)__________

　　this protein in bulk.

　　Next， they imprinted a block of gold with a microscopic chessboard pattern

　　of chemicals.

　　Half the squares contained anchoring points for the protein. The other half

　　were left untreated as controls.

　　They then dipped the gold into a solution containing the protein， allowing

　　it to bind to the treated squares， and dunked the whole lot into a heated

　　(8)__________ of iron salts.

　　After that， they examined the results with an electron microscope. Sure

　　enough， groups of magnetite grains had materialised on the treated squares，

　　shepherded into place by the bacterial protein.

　　In principle， each of these magnetic domains could store the one or the

　　zero of a bit of information， according to how it was polarised.

　　Getting from there to a real computer memory would be a long road.

　　For a start， the grains of magnetite are not strong enough magnets to make

　　a useful memory， and the size of each domain is huge by modern computing

　　(9)__________.

　　But Dr Staniland reckons that， with enough tweaking， both of these

　　objections could be dealt with.

　　The (10)__________ of this approach is that it might not be so

　　capital-intensive as building a fab.

　　Growing things does not need as much kit as making them.If the tweaking

　　could be done， therefore， the result might give the word biotechnology a whole

　　new meaning. new meaning.

　　A) components B) advantage C) standards D) compliments E) essence F)

　　inspiration G) disadvantage H) doubles I) solution J) resolution K) devices L)

　　manufacture M) spirit N) product O) technique

　　参考答案： 1.E)essence2.H)doubles3.A)components4.K)devices5.O)technique

　　6.F)inspiration7.L)manufacture8.I)solution9.C)standards10.B)advantage

　　以上就是为大家整理的“2022英语专业四级完形填空题目集锦(24)”，希望大家能够更好的掌握专四攻略，提高专四水平。

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