1、活页练(十二)单项填空1He has known the truthTherefore，there is no _ to keep it a secretAchance Bdoubt Cpossible Dlikely2These trousers are dirty and wetIll change into my _Aanother Btrousers Cothers Dother3Last Sunday his brother picked up _Aan expensive purple cotton dressBan expensive cotton purple dressCa
2、purple cotton expensive dressDa purple expensive cotton dress4Shall we meet in front of the History Museum at 340?OKIt is _ for meAsimple BfitCconvenient Dpleasing5Charles Dickens _ many wonderful characters in his novelsAinvented BdiscoveredCcreated Duncovered6The discovery of gold in Australia led
3、 thousands to believe that a fortune _Ais made Bwould makeCwas to be made Dhad made7There is plenty of time for you to think about it carefully，so you neednt rush now_ you change your mind，I wouldnt mindAWould BCould CShould DMight8Thank you for sending us _ fresh vegetables of many kindsYou have do
4、ne us _ great serviceA/；a Bthe；a C/；/ Dthe；/9Im so anxious about my driving test tomorrowWould you please give me some advice?_Im sure you are good enough to pass itBe confident of yourselfAAbsolutely BTake it easyCYou are right DNot really10I want to be liked and loved for _ I am insideAwho Bwhere
5、Cwhat Dhow11Is this the reason _ at the meeting for his carelessness in his work?Ahe explained Bwhat he explainedChow he explained Dwhy he explained12_ you have explored your fear in detail，you need to determine what tools you have access to that can help you move forwardANow that BAfterCOnce DAs so
6、on as13The classroom is so dirty that it needs _ badlyAclean Bto cleanCbeing cleaned Dcleaning14All the young fans cheered up immediately when they saw Xiao Shenyang _ on the stageAturn up Bturn outCturn in Dturn over15Not only should you get used _ under difficult conditions but also you pay more a
7、ttention _ your work wellAto work；to do Bto working；to doingCto work；to doing Dto working；to do完形填空I am a single mom with two girls and we are on food stamps (救济购粮券)On Labor Day，I went to _1_ my grocery shopping for the monthWhile I was in the store，I _2_a lady with a blue tooth in her ear carrying
8、on a very serious conversation on the phoneI _3_ to do my shopping but often ran into her_4_ I made it to the checkout line，she was in the same line _5_ meI didnt think anything of it and went to _6_ my billSince food stamps are only for food，my remaining balance was $60 for my nonfood itemsI looked
9、 in my _7_ and I found that I did not have my credit card with me_8_ I realized that I had _9_ it at home after using it to pay my phone billSo，I had my _10_ run outside to ask Sharon，a friend who gave me a ride that day，if she had any _11_ I could borrow_12_，she did not have any money with herThe c
10、ashier said she could hold my _13_ and I could run home to get my money and come backSo I ran _14_ to ask Sharon if she could run me home and she said _15_I ran back in to let the _16_ know that I would be back soonBut as I was walking in she was waving her hands in the airShe told me not to worry a
11、bout going home _17_ the lady behind me had paid my $60 billI was _18_I asked her if I could have her phone number so I could _19_ herShe said no and that it was fine，and that sometimes we all _20_ our moneyI would like to thank her for helping out a single mom1Amake Bdo Cpick Dhave2Anoticed BfoundC
12、recognized Drealized3Astarted BstoppedCwanted Dcontinued4ABy the time BAs soon asCAs a result DIn the end5Awith BbeforeCbehind Dalong6Agive Bpass Cpay Dsign7Acar Bwallet Ccellphone Dlist8AIn the meanwhile BOnce in a whileCBefore long DAll of a sudden9Aleft Bforgotten Cthrown Dstored10Ahusband Bdrive
13、rCson Ddaughter11Amoney BcardCbill Dhandbag12ALuckily BHonestlyCUnfortunately DInterestingly13Aline BorderCplace Dnumber14Aupstairs BdownstairsCinside Doutside15Agoodbye Bsorry Cyes Dno16Alady BdriverCcashier Dcustomer17Auntil Bbecause Cthough Dif18Aamazed BdisappointedCshocked Dfrightened19Acall Br
14、eturnCask Drepay20Alose BneedCforget Dborrow阅读理解An accidental discovery has brought seismologists (地震学家) one step closer to being able to predict earthquakesAs part of an effort to measure underground changes caused by shifts in barometric pressure，a team of researchers found that increases in under
15、ground pressure came before earthquakes along Californias San Andreas Fault by as much as 10 hoursIf followup tests confirm these findings，seismologists may eventually be able to provide a few hours notice for people to find a safe place before quakes“Predicting earthquakes is the final goal for sei
16、smologists，” says Fenglin Niu，the research teams lead author and a Rice University seismologist“This is a start” The research team theorizes that the immense amount of pressure building along the Fault causes small cracks within the rock during the final hours before an earthquake，which increases ro
17、ck density and slows the transmission signals“The more cracks you have，the slower the seismic velocity (震波速度) will be，” says study coauthor Paul Silver，a geophysicist with the Carnegie Institution of WashingtonStill unknown is whether there is any significance to the fact that the magnitude3 quake h
18、ad a much longer preseismic signal than lowermagnitude quakes，or whether it was simply because its magnitude was larger and its epicenter (震中) was closer to the sensorsIf scientists can flesh out the new findings during future earthquakesa twoyear study at the same seismically active location begins
19、 this Septemberit could form the basis of a vastly improved earlywarning system for quakesCurrent earthquakewarning systems give just a few seconds notice because they detect only Pwaves，the fastmoving seismic waves that precede the more destructive waves released during a quakeUpgrading to a seismi
20、c stress meter，however，is still a long way off1The author wrote this passage to tell us something about _Aa traditional way of predicting earthquakesBthe importance of predicting earthquakesCa new way of predicting earthquakesDthe damages caused by horrible earthquakes2According to the passage，we ca
21、n infer that the traditional way of predicting earthquakes _Acosts much more than the new oneBproduces accurate informationCdoes not provide enough time for people to escapeDis less accurate than the new one 3The new way mentioned in the passage predicts earthquakes by _Ameasuring the changes of the
22、 PwavesBlooking for the epicenter closest to the sensorsCwatching the movements of rocks above the groundDmeasuring the pressure underneath the ground4Which of the following factors probably will NOT influence the preseismic signal?AThe weather in the earthquake areaBThe magnitude of the earthquakeC
23、The position of the sensorsDThe position of the epicenter5According to the last paragraph，we learn that _Athe new discovery will be put into use soonBa vastly improved earlywarning system has been formedCthe new discovery will be tested in the futureDthe current earthquakewarning systems are not useful答案1A2C3A4C5C6C7C8A9B10C11A12A 13D14A15B1B2A3D4A5C6C7B8D9A10D11A12C13B14D15C16C17B18A19D20C1C2C3D4A5C
