单选题What tends to affect people’s ability to think clearly?

单选题Malcolm, Mohammed, Lucy, Sally and Robin all have pets. Malcolm, Mohammed and Robin each have a dog. Malcolm has a cat. Sally loves horses but only has a rabbit and a snake. Mohammed also has a snake. Lucy and Robin have a parrot each. Who keeps the least pets? A. Malcolm. B. Sally. C. Lucy. D. Robin.

单选题Eachsymbolinthistablehasavalue.Thetotalofthesevaluesineachrowandcolumniswrittenattheendofthecorrespondingmworcolumn.Canyoufindthevalueofeachsymbol?

单选题There are ______ main islands in New Zealand.

单选题He wants to finish his work in half an hour. It is ______ impossible.

单选题Sumac, Inc. submitted their bid after the deadline; _________, they were not eligible for consideration.

单选题The "Father of Waters" is used to refer to ______.

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单选题{{B}}Section A{{/B}} Directions: There are two passages in this section with 10 questions. For each question, there are four choices marked A, B, C and D. You should decide on the best choice. Questions 51-55 are based on the following passage. People living on parts of the south coast of England face a serious problem. In 1993, the owners of a large hotel and of several houses discovered, to their horror, that their gardens had disappeared overnight. The sea had eaten into the soft limestone cliffs on which they had been built. While experts were studying the problem, the hotel and several houses disappeared altogether, sliding down the cliff and into the sea. Erosion of the white cliffs along the south coast of England has always been a problem but it has become more serious in recent years. Dozens of homes have had to be abandoned as the sea has crept farther and farther inland. Experts have studied the areas most affected and have drawn up a map for local people, forecasting the year in which their homes will be swallowed up by the hungry sea. Angry owners have called on the Government to erect sea defenses to protect their homes. Government surveyors have pointed out that in most cases, this is impossible. New sea walls would cost hundreds of millions of pounds and would merely make the waves and currents go further along the coast, shifting the problem from one area to another. The danger is likely to continue, they say, until the waves reach an inland area of hard rock which will not be eaten as limestone is. Meanwhile, if you want to buy a cheap house with an uncertain lucre, apply to a house agent in one of the threatened areas on the south coast of England. You can get a house for a knockdown price but it may turn out to be a knockdown home.

单选题—How did the Forbidden City get this name? —Well, in the feudal society, emperors had supreme power, ______ —You mean the whole palace? —Yes. The Forbidden City is divided into two parts. The southern section for the emperor to exercise his power over the nation, and the northern part for his royal family.

单选题The teacher was worried about the play her young class was putting on for the parents but, fortunately, everything ______ off without any problems.

单选题My friends and I enjoy doing many of the same things. In that respect, we have a lot ______. A. in similar B. in particular C. in common D. in accordance

单选题{{B}}Passage B{{/B}} Questions 26 to 30 are based on the passage you have just heard.

单选题You have to read the manual carefully first, otherwise you ______ have difficulty using the cell phone.

单选题Which is not correct to describe the Prime Minister?

单选题 In this section, you will hear two long conversations. Each conversation will be read only once. At the end of each conversation, there will be a one-minute pause. During the pause, read the five questions, each with three choices marked A, B and C, and decide which is the best answer. Then mark the corresponding letter on the answer sheet with a single line through the centre.{{B}}Conversation One{{/B}}

单选题{{B}}SectionC{{/B}}Thissectionconsistsofonepassagefollowedbyfivequestions.Readthepassagecarefully,andthenanswereachofthequestionsinamaximumof10words.Remembertowritetheanswersontheanswersheet.Questions56to60arebasedonthefollowingpassage.BiologicalPestControlBiologicalcontrolis,generally,human'suseofaspeciallychosenlivingorganismtocontrolaparticularpest.Thischosenorganismmightbeapredator,parasite,ordiseasewhichwillattacktheharmfulinsect.Itisaformofmanipulatingnaturetoincreaseadesiredeffect.AcompleteBiologicalControlprogrammayrangefromchoosingapesticidewhichwillbeleastharmfultobeneficialinsects,toraisingandreleasingoneinsecttohaveitattackanother,almostlikea"livinginsecticide".BiologicalcontrolmethodscanbeusedaspartofanoverallIntegratedPestManagement(IPM)programtoreducethelegal,environmental,andpublicsafetyhazardsofchemicals.Inaddition,itmaybeamoreeconomicalalternativetosomeinsecticides.Somebiologicalcontrolmeasurescanactuallypreventeconomicdamagetoagriculturalcrops.Unlikemostinsecticides,biologicalcontrolsareoftenveryspecificforaparticularpest.Otherhelpfulinsects,animals,orpeoplecangocompletelyunaffectedordisturbedbytheiruse.Thereislessdangerofimpactontheenvironmentandwaterquality.Biologicalcontroltakesmoreintensivemanagementandplanning.Itcantakemoretime,requiremorerecordkeeping,morepatience,andsometimesmoreeducationortraining.Successfuluseofbiologicalcontrolrequiresagreaterunderstandingofthebiologyofboththepestanditsenemies.Manynaturalenemiesareverysusceptibletopesticides,andusingthemsuccessfullyinanIPMprogramtakesgreatcare.Insomecases,biologicalcontrolmaybemorecostlythanpesticides.Often,theresultsofusingbiologicalcontrolarenotasdramaticorquickastheresultsofpesticideuse.Mostnaturalenemiesattackonlyspecifictypesofinsects--unlikebroad-spectruminsecticides,whichmaykillawiderangeofinsects.Thoughoftenanadvantage,thiscanalsobeadisadvantage.Biologicalcontrolusesnaturallyoccurringpredators,parasitesanddiseasestocontrolpests.Therearethreemainwaystousethesenaturalenemiesagainstunwantedinsectpestpopulations.ClassicalBiologicalControl(importation)involvestravelingtothecountryorareafromwhichanewlyintroducedpestoriginatedandreturningwithsomeofthenaturalenemiesthatattackeditandkeptitfrombeingapestthere.Newpestsareconstantlyarrivingaccidentallyorintentionally.Sometimestheysurvive.Whentheycome,theirenemiesareleftbehind.Iftheybecomeapest,introducingsomeoftheirnaturalenemiescanbeanimportantwaytoreducetheamountofharmtheycando.Augmentationisamethodofincreasingthepopulationofanaturalenemywhichattacksapest.Thiscanbedonebymassproducingapestinalaboratoryandreleasingitintothefieldatthepropertime.Anothermethodofaugmentationisbreedingabetternaturalenemywhichcanattackorfinditspreymoreeffectively.Massrearingscanbereleasedatspecialtimeswhenthepestismostsusceptibleandnaturalenemiesarenotyetpresent,ortheycanbereleasedinsuchlargenumbersthatfewpestsgountouchedbytheirenemies.Theaugmentationmethodreliesuponcontinualhumanmanagementanddoesnotprovideapermanentsolutionunliketheimportationorconservationapproachesmay.Conservationofnaturalenemiesisanimportantpartinanybiologicalcontroleffort.Thisinvolvesidentifyinganyfactorsthatlimittheeffectivenessofaparticularnaturalenemyandchangingthemtohelpthebeneficialspecies.Conservationofnaturalenemiesinvolveseitherreducingfactorswhichinterferewiththenaturalenemiesorprovidingneededresourcesthathelpnaturalenemies.Inadditiontotheintroductionofpredators,severalmicrobialpathogensareeffectiveagainstnematodes.Theyconsistofamicroorganism(e.g.abacterium,fungus,virusorprotozoan)astheactiveingredient.Theycancontrolmanydifferentkindsofpests,althougheachseparateactiveingredientisrelativelyspecificforitstargetpest(s).Forexample,therearefungithatcontrolcertainweeds,andotherfungithatkillspecificinsects.ThemostwidelyusedmicrobialpesticidesaresubspeciesandstrainsofBacillusthuringiensis,orBT.Eachstrainofthisbacteriumproducesadifferentmixofproteins,andspecificallykillsoneorafewrelatedspeciesofinsectlarvae.WhilesomeBTscontrolmothlarvaefoundonplants,otherBTsarespecificforlarvaeoffliesandmosquitoes.ThetargetinsectspeciesaredeterminedbywhethertheparticularBTproducesaproteinthatcanbindtoalarvalgutreceptor,therebycausingtheinsectlarvaetostarve.Questions:

单选题Conversation One