2016职称英语考试理工A级完形填空真题答案

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2016职称英语考试理工A级完形填空真题答案

　　完形填空

　　Cell Phone Lets Your Secrets Out

　　Your cell phone holds secrets about you.Besides the names and numbers that you've programmed into it, ______traces____(51) of your DNA linger (遗留) on thedevice according to a new study

　　DNA is genetic (遗传的)material _____that_____ (52) appears in every cell. Like your fingerprint, yourDNA is _____unique______ (53) to you——unless you have an identical twin. Scientiststoday analyze DNA in blood, saliva (唾液), orhair left ____behind_______ (54) at the scene of a crime. The results oftenhelp detectives identify ____criminals______ (55) and their victims. Your cellphone can reveal more about you ____than_____ (56) you might think.

　　Meghan J. McFadden, a scientist at McMasterUniversity in Hamilton, Ontario, heard about a crime in which the suspect bledonto a cell phone and later dropped the____device_____ (57). This made herwonder whether traces of DNA lingered on cell phones一evenwhen no blood was___involved_____(58). She and colleague Margaret Wallace ofthe City University of NewYork analyzed the flip-open phones(翻盖手机)of10 volunteers. They used swabs (药签) tocollect _____invisible___ (59) traces of the users from two parts of the phone:the outside, where the user ____holds_____(60) it, and the speaker which isplaced at the user's ear

　　The scientists cleaned the phones using asolution made mostly__of____(61) alcohol. The aim of washing was to remove alldetectable traces of DNA. The owners got their phones back for another week.Then the researchers ___returned________ (62) the phones and cleaned each phoneonce more.

　　The scientists discovered DNA that _____belonged______(63) to the phone's speaker on each of the phones. Better samples werecollected from the outside of each phone, but those swabs also picked up DNAthat belonged to other people who had apparently also ____handed______ (64) thephone

　　Surprisingly, DNA showed up even in swabsthat were taken immediately after the phones were scrubbed. That suggests thatwashing won't remove all traces of ___evidence________ (65) from a criminal'sdevice. So cell phones can now be added to the list of clues that can clinch (确定)a crime-scene investigation.

　　51.

　　A. name

　　B.pictures

　　C. shapes

　　D. traces

　　52.

　　A. that

　　B. while

　　C.as

　　D.what

　　53.

　　A. common

　　B. good

　　C. helpful

　　D. unique

　　54.

　　A. behind

　　B. away

　　C. aside

　　D.over

　　55.

　　A. visitors

　　B. travelers

　　C.scientists

　　D.criminals

　　56.

　　A. until

　　B. before

　　C.unless

　　D. than

　　57.

　　A. paper

　　B. document

　　C. device

　　D.file

　　58.

　　A. checked

　　B. involved

　　C. tested

　　D. gathered

　　59.

　　A. invisible

　　B.emotional

　　C. poisonous

　　D. magical

　　60.

　　A. holds

　　B. watches

　　C. drops

　　D. covers

　　61.

　　A. with

　　B.by

　　C. for

　　D. of

　　62.

　　A. collected

　　B. answered

　　C. returned

　　D. used

　　63.

　　A. moved

　　B.changed

　　C. belonged

　　D.turned

　　64.

　　A bought B. repaired C.seen D. handed

　　65.

　　A. smell B. evidence C.sound D.color

　　参考答案

　　完形填空：DADAD DCBAA DACDB

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