2016年职称英语理工A完形填空真题及答案
下面是小编整理的'2016年职称英语考试理工A完形填空真题及答案,提供给同学们复习参考。
完形填空
CellPhone Lets Your Secrets Out
Your cell phone holds secrets about des 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 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 ures C. shapes D. traces
答案:d
52. A. that B. while
答案:a
53. A. common B. good C. helpful D. unique
答案:d
54. A. behind B. away C. aside
答案:a
55. A. visitors B. travelers ntists inals
答案:d
56. A. until B. before ss D. than
答案:d
57. A. paper B. document C. device
答案:c
58. A. checked B. involved C. tested D. gathered
答案:b
59. A. invisible ional C. poisonous D. magical
答案:a
60. A. holds B. watches C. drops D. covers
答案:a
61. A. with C. for D. of
答案:d
62. A. collected B. answered C. returned D. used
答案:c
63. A. moved ged C. belonged ed
答案:c
64. A bought B. repaired D. handed
答案:d
65. A. smell B. evidence d r
答案:b
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