職稱英語理工A完形填空真題及答案
從小學、初中、高中到大學乃至工作，我們最少不了的就是試題了，試題是命題者根據測試目標和測試事項編寫出來的。大家知道什么樣的試題才是好試題嗎？下面是小編整理的職稱英語理工A完形填空真題及答案，希望能夠幫助到大家。
職稱英語理工A完形填空真題及答案 1
完形填空
CellPhone Lets Your Secrets Out
Your cell phone holds secrets about you.Besides the names and numbers that youve 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 users 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 phones 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 wont remove all traces of ___evidence________ (65) from a criminalsdevice. 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
答案：d
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
職稱英語理工A完形填空真題及答案 2
Avalanche (雪崩) and Its Safety
An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are__________ (1) the biggest dangers in the mountains for both life and property.
All avalanches are caused by an overburden of material, typically snowpack (積雪場), that is too massive and trustable for the slope__________(2) supports it. Determining the critical load,the amount of over-burden which is __________ (3) to cause an avalanche, __________ (4) a complex task involving the evaluation of a number of factors.
Terrain slopes flatter than 25 degrees or steeper than 60 degrees typically have a low __________(5) of avalanche. Snow does not __________(6) significantly on steep slopes; also, snow does not__________(7) easily on flat slopes. Human-triggered (激發) avalanches have the greatest incidence(發生率) when the snows angle of rest is __________(8) 35 and 45 degrees; the critical angle, the angle at which the human incidence of avalanches is greatest, is 38 degrees. The rule of thumb (經驗法則) is: A slope that is__________(9) enough to hold snow but steep enough to ski has the potential to generate an avalanche, regardless of the angle. Additionally, avalanche risk increases with__________ (10); that is, the more a slope is disturbed by skiers, the more likely it is that an avalanche will occur.
Due to the complexity of the subject, winter travelling in the backcountry (人煙稀少的地區)is never 100% safe. Good avalanche safety is a continuous__________(11), including route selection and examination to the snowpack, weather __________ (12), and human factors. Several we|l-known good habits can also __________ (13)the risk. If local authorities issue avalanche risk reports, they should be considered and all warnings should be paid__________(14) to. Never follow in the tracks of others without your own evaluations; snow conditions are almost certain to have changed since they were made. Observe the terrain and note obvious avalanche paths where plants are__________ (15) or damaged. Avoid traveling below others who might trigger an avalanche.
1.A. among
B. of
C. to
D. in
2.A. when
B. that
C. who
D. whose
3.A. mostly
B. likely
C. clearly
D. surely
4.A. are
B. will be
C. is
D. was
5.A. weight
B. form
C. risk
D. work
6.A. fall
B. flow
C. roll
D. gather
7.A. fall
B. flow
C. roll
D. gather
8.A. among
B. between
C. with
D. for
9.A. thick
B. thin
C. flat
D. rocky
10. A. use
B. time
C. snow
D. rain
11. A. journey
B. trip
C. Fact
D. process
12. A. conditions
B. reports
C. forecast
D. event
13. A. increase
B. reduce
C. improve
D. remove
14. A. price
B. effort
C. attention
D. money
15. A. missing
B. grown
C. big
D. fresh
答案解析：
1.A。這里考查的是介詞。這里是說，雪崩是山上可能發生的最大危險之一，因此應該選擇among(在……之中)。
2.B。這里考查的是定語從句。根據定語從句引導詞的選用原則，確定答案為that，具體參見定語從句【備考助手】。
3.B。這里是說，過度的雪積壓導致雪崩。顯然是可能而不是必定導致雪崩。所以，B是最佳答案。
4.C。這里考查的是主謂一致。該句的主語是determining the critical load，從上下文來看應該使用一般現在時，所以C是正確答案。
5.C。這里是說，坡度小于25度或者大于60度有較低的發生雪崩的__________ 。weight(重量)、form(形式)、risk(風險)、work(工作)分別代入，只有a low risk of avalanche符合上下文的'意思。后面的句子解釋了a low risk ofavalanche的道理，證實了應選risk。
6.D。第6題和第7題是講為什么坡度小于25度或者大于60度發生雪崩的風險較低。本句是說，在坡度大的坡上，雪不會大量。9ather(聚集)符合語境，因為在坡度大的坡上雪不聚集才不會發生雪崩。
7.B。本句是說，在較為平坦的坡面，雪不會輕易__________ 。roll(滑動)符合語境，因為在較為平坦的坡面上雪不會輕易滑動，所以發生雪崩的危險比較低。
8.B。本句是說，坡度在35——45度之間，最可能發生人為觸發的雪崩。between意為“在……之間”。
9.C。這個句子說的是什么樣的山坡最易發生雪崩，flat有“平坦”之意，與后面的steep形成對比。
10.A。句中的that is表明，后半部分是對前半部分的進一步說明。所以，這里要根據下文的意思判斷。use是最佳選擇。整個句子的意思是：山坡被滑雪者使用得越多，雪崩就越可能發生。
11.D。盡管選項A、B和D都能和continuous搭配，從全段的內容判斷，只有process是最佳選擇，因為該段描寫的是如何防備雪崩及如何做好安全措施等一系列問題。
12.A。從上下文來看，這里談論的是如何防備雪崩，包括路線的選擇，對積雪的選擇，天氣和人為因素。選項A、B、C都可以與weather搭配，但是根據上下文，只有weather condition(天氣狀況)最符合語境。
13.B。從上下文語境來看，這里還是談論如何防備雪崩，所以選項A不符合句子的意思;C不能和risk搭配;D也不符合句子的意思，因為不可能完全消除雪崩的隱患。
14.c。該句主句使用的是被動語態。第二個動詞是pay attention to的被動形式。選項A、B、D均不符合句子的意思。
15.A。從上下文語境來看，該句是作者給出的一系列忠告之一，包括認真觀察地形、注意明顯的雪崩路徑。這里的or是解題線索，表示or前后的詞在意思上接近，所以選擇missing(缺少的)。
【職稱英語理工A完形填空真題及答案】相關文章：
職稱英語《理工B》完形填空真題練習及答案08-27
2017年職稱英語理工完形填空真題及答案09-04
職稱英語真題《理工C》完形填空真題精選11-28
職稱英語歷年真題理工A完形填空11-28
職稱英語歷年真題《理工A》完形填空09-26
職稱英語《理工A》完形填空歷年真題精選09-02
2017年備考職稱英語《理工A》完形填空真題及答案05-27
職稱英語《理工B》完形填空歷年真題精選09-17
職稱英語歷年真題《理工C》完形填空精選11-08