【摘要】2017年職稱英語考試備考中，環球網校為幫助大家備考特分享了“職稱英語《理工類A類》完形填空真題練習”供大家練習，更多資料敬請關注環球職稱英語考試頻道，網校會及時更新考試資訊……

　　相關推薦：2016職稱英語真題答案與解析專題　

　　完形填空

　　CellPhone 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 (遺留) on thedevice according to a new study

　　DNA is genetic (遺傳的)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(翻蓋手機)of10 volunteers. They used swabs (藥簽) 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 (確定)a crime-scene investigation.

　　51. A. name B.pictures C. shapes D. traces

　　職稱英語理工A考生70分通關經驗分享

　　職稱英語考試上班族備考策略分享

　　職稱英語怎樣快速做完閱讀理解

　　環球老師分享職稱英語語法提高技巧

　　環球網校友情提示：2017年職稱英語考試馬上開始，本文小編整理“職稱英語《理工類A類》完形填空真題練習”，如果您在此過程中遇到任何疑問，請登錄環球網校職稱英語頻道及論壇，我們隨時與廣大考生朋友們一起交流!

　　答案：d

　　【摘要】2017年職稱英語考試備考中，環球網校為幫助大家備考特分享了“職稱英語《理工類A類》完形填空真題練習”供大家練習，更多資料敬請關注環球職稱英語考試頻道，網校會及時更新考試資訊……

　　相關推薦：2016職稱英語真題答案與解析專題　

　　52. A. that B. while C.as D.what

　　答案：a

　　53. A. common B. good C. helpful D. unique

　　答案：d

　　54. A. behind B. away C. aside D.over

　　答案：a

　　55. A. visitors B. travelers C.scientists D.criminals

　　答案：d

　　56. A. until B. before C.unless D. than

　　答案：d

　　57. A. paper B. document C. device D.file

　　答案：c

　　58. A. checked B. involved C. tested D. gathered

　　答案：b

　　59. A. invisible B.emotional C. poisonous D. magical

　　答案：a

　　60. A. holds B. watches C. drops D. covers

　　答案：a

　　61. A. with B.by C. for D. of

　　答案：d

　　62. A. collected B. answered C. returned D. used

　　答案：c

　　63. A. moved B.changed C. belonged D.turned

　　答案：c

　　64. A bought B. repaired C.seen D. handed

　　答案：d

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

　　答案：b

　　環球網校職稱英語熱門套餐推薦：

　　職稱英語理工A考生70分通關經驗分享

　　職稱英語考試上班族備考策略分享

　　職稱英語怎樣快速做完閱讀理解

　　環球老師分享職稱英語語法提高技巧

　　環球網校友情提示：2017年職稱英語考試馬上開始，本文小編整理“職稱英語《理工類A類》完形填空真題練習”，如果您在此過程中遇到任何疑問，請登錄環球網校職稱英語頻道及論壇，我們隨時與廣大考生朋友們一起交流!