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1、2021黑龙江留学英语考试模拟卷本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。一、单项选择题（共50题，每题2分。每题的备选项中，只有一个最符合题意） 1.The word sustain in line 6 is closets in meaning toA( selectB( strainC( supportD( store 2.The author mentions the prickly pear (line 12) as an example ofA( valuable fruit-bearing plants of the scrub areaB( un
2、attractive plant life of the scrub areaC( a pant discovered by an early naturalistD( plant life that is extremely are 3.The author suggests that human standards of beauty areA( tolerantB( idealisticC( defensibleD( limited 4.The word insignificant in line 16 is closest in meaning toA( unimportantB( u
3、ndisturbedC( immatureD( inappropriate 5.According to the passage, why is the Lake Wales Ridge valuableA( It was originally submerged in the oceanB( It is less than ten miles wideC( It is located near the seashoreD( It has ecosystems that have long remained unchanged 6.The word it in line 22 refer to
4、A( FloridaB( the peninsulaC( the Lake Wales RidgeD( the Miocene era 7.The passage probably continues with a discussion ofA( ancient scrub found in other areas of the countryB( geographers who study Floridas scrubC( the climate of the Lake Wales RidgeD( the unique plants found on the Lake Wales Ridge
5、 8.The word it in line 3 refers toA( environmentB( speciesC( extinctionD( 99 percent 9.The word ultimately in line 8 is closest in meaning toA( exceptionallyB( dramaticallyC( eventuallyD( unfortunately 10.What does the author say in paragraph 1 regarding most species in Earths historyA( They have re
6、mained basically unchanged from their original formsB( They have been able to adapt to ecological changesC( They have caused rapid change in the environmentD( They are no longer in existence 11.Which of the following is NOT mentioned in paragraph 1 as resulting from rapid ecological changeA( Tempera
7、ture changesB( Availability of food resourcesC( Introduction of new speciesD( Competition among species 12.The word demise in line 12 is closest in meaning toA( changeB( recoveryC( helpD( death 13.Why is plankton mentioned in line 17A( To demonstrate the interdependence of different speciesB( To emp
8、hasize the importance of food resources in preventing mass extinctioC( To illustrate a comparison between organisms that live on the land and those that live in the oceanD( To point out that certain species could never become extinc 14.According to paragraph 2, evidence from fossils suggests thatA(
9、extinction of species has occurred from time to time throughout Earths historyB( Extinctions on Earth have generally been massiveC( there has been only one mass extinction in Earths historyD( dinosaurs became extinct much earlier than scientists originally believed 15.The word finding in line 20 is
10、closest in meaning toA( published informationB( research methodC( ongoing experimentD( scientific discovery 16.Which of the following can be inA( Many scientists could be expected to disagree with itB( evidence to support the theory has recently been foundC( The theory is no longer seriously conside
11、redD( Most scientists believe the theory to be accurate 17.In paragraph 3, the author makes which of the following statements about a species survivalA( It reflects the interrelationship of may speciesB( It may depend on chance eventsC( It does not vary greatly from species to speciessD( It is assoc
12、iated with astronomical conditions 18.According to the passage, it is believed that the largest extinction of a species occurredA( 26 million years agoB( 65 million years agoC( 225 million years agoD( 250 million years ago 19.Why does the author mention the stove in line 10A( To describe the heat of
13、 the SunB( To illustrate how water vapor is storedC( To show how energy is storedD( To give an example of a heat source 20.The passage mainly discusses how heatA( is transformed and transported in the Earths atmosphereB( is transported by ocean currentsC( can be measured and analyzed by scientistsD(
14、 moves about the Earths equator 21.The word prevailing in line 19 is closest in meaning toA( essentialB( dominantC( circularD( closest 22.The passage mentions that the tropics differ from the Earths polar regions in which of the following waysA( The height of cloud formation in the atmosphereB( The
15、amount of heat they receive from the SunC( The strength of their largescale windsD( The strength of their oceanic currents 23.The word convert line 6 is closest in meaning toA( mixB( changeC( adaptD( reduce 24.The word it in line 18 refers toA( square meterB( the Suns energyC( latent heatD( the atmo
16、sphere 25.The word primarily in line 19 is closest in meaning toA( chieflyB( originallyC( basicallyD( clearly 26.According to the passage, 30 percent of the Suns incoming energyA( is stored in clouds in the lower latitudesB( is transported by ocean currentsC( never leaves the upper atmosphereD( gets
17、 stored as latent heat 27.According to the passage, most ocean water evaporation occurs especiallyA( around the higher latitudesB( in the tropicsC( because of large-scale windsD( because of strong ocean currents 28.All of the following words are defined in the passage EXCEPTA( low latitudes (linB( l
18、atent heat (line5)C( evaporate (line7)D( atmosphere (line140) 29.What does the passage mainly discussA( What astronomers learned from the Surveyor and Apollo space missionsB( Characteristics of the major terrains of the MoonC( The origin of the Moons cratersD( Techniques used to catalogue the Moons
19、land forms 30.The word undergone in line is closest in meaning toA( alteredB( substitutedC( experiencedD( preserved 31.The passage supports which of the following statements about the Surveyor and Apollo missionsA( They confirmed earlier theories about the Moons surfaceB( They revealed that previous
20、 ideas about the Moons craters were incorrectC( They were unable to provide detailed information about the Moons surfaceD( They were unable to identify how the Moons craters were made 32.The word vast in line 10 is closest in meaning toA( specialB( knownC( variedD( great 33.All of the following are
21、true of the maria EXCEPT:A( They have small cratersB( They have been analyzed by astronomersC( They have a rough textureD( They tend to be darker than the terrace 34.All of the following terms are defined in the passage EXCEPTA( Moon (line1)B( reflectivity(line3)C( regolith(line 16)D( rays(linel9) 3
22、5.The author mentions wispy marks in line 19 as an example ofA( an aspect of the lunar surface discovered through lunar missionsB( a characteristic of large cratersC( a discovery made through the use of Earth-based telescopesD( features that astronomers observed to be common to Earth and the Moon 36
23、.According to the passage, lunar researchers have focused mostly onA( the possibility of finding water on the MoonB( the lunar regolithC( cataloging various land formationsD( craters and their origins 37.The passage probably continues with a discussion ofA( the reasons craters are difficult to study
24、B( the different shapes small craters can haveC( some features of large cratersD( some difference in the ways small and large craters were formed 38.According to the passage, the maria differ from the terrace mainly in terms ofA( ageB( manner of creationC( sizeD( composition 39.TERSE: SUPERFLUITY :
25、:Alaconic: intelligenceBaustere: adornmentCascetic: rejuvenationDgradual: transformationEincredulous: suspicion 40.EPIDERMIS: MAMMALAcheese: hotdogBfeathers: birdCmattress: couchDhalo: starEtuber: trunk 41.SINFULNESS: PECCADILLO : :Adepravity: distortionBsolicitude: apprehensionCpaucity: vacuityDcri
26、minality: misdemeanorEstimulation: incitement 42.APOSTROPHE: OMISSION : :Aellipsis: commentaryBparenthesis: clarificationCsynopsis: documentDcolon: attentionEperiod: digression 43.PREVARICATE: TRUTH : :Aexpound: incoherenceBinvent: exculpationCinvolve: disclosureDequivocate: commitmentEsubstantiate:
27、 fabrication 44.DRAFT: CONSCRIPT : :Alevy: laborerBsubpoena: witnessCemploy: staffDinduce: sheriffEselect: member 45.AGENDA: MEETING : :Aitinerary: journeyBacademy: didacticsCband: soundDraffle: gambleEhighway: conveyance 46.PERFIDY: LOYAL : :Aexorbitance: moderateBperjury: ardentCaffection: faithfu
28、lDprecision: accurateEloathing: comely 47.LOUTISH: GRACE : :Abanal: reparteeBselfish: egoCcomely: hatredDfiendish: impatienceEretentive: memory 48.PROPAGATION:ApermeationBexposureCeradicationDorderEmimic 49.INFLATE:AgatherBperceiveCreviewDminimizeErestrain 50.LACONIC:AobdurateBunableChappyDgarrulousEblatant第18页 共18页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页