1、【题目】The megaphone(microphone) makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in all directions.

选项：

A.slithering

B.radiating

C.interfering

D.murmuring

答案：

B

解析：

暂无解析

1、【题目】 All living organisms, regardless of their unique identity, have certain biological, chemical, and physical characteristics in common.

选项：

A.asaresultof

B.considering

C.cognizantof(consciousof,awareof)

D.whatever

答案：

D

解析：

暂无解析

1、【题目】People who do not sleep enough tend to become irritable .

选项：

A.easilyannoyed

B.ill

C.weary

D.stiffandsore

答案：

A

解析：

暂无解析

1、【题目】Insectpestsareamongtheleadingcausesofcropfailure.

选项：

A.expected

B.chief

C.natural

D.least

答案：

解析：

1、【题目】ThecompanyissuesanannualreporteveryMarch.

选项：

A.ayearly

B.acomprehensive

C.afinancial

D.aproduct

答案：

解析：

1、【题目】EllaGrasso,electedgovernorofConnecticutin1974,supportedtheenactment(given,granted)ofafreedom-of-informationlaw.

选项：

A.passing

B.advocates

C.drafting

D.circulation

答案：

解析：

1、【题目】By the nineteenth century, embroidery on men's clothing had virtually disappeared except for the occasional decorative vest and tie.

选项：

A.almost

B.definitely

C.already

D.universally

答案：

A

解析：

暂无解析

1、【题目】While Billie Holiday did not invent the music called "the blues", she most assuredly helped popularize it.

选项：

A.finally

B.certainly

C.earnestly

D.enthusiastically

答案：

B

解析：

暂无解析

1、【题目】Theflowerbudofawaterlily百合opensatsunsetsince.itsopeningistriggered(commence).bythedecreasedlight.

选项：

A.alleviated减轻

B.endured

C.setoff

D.coveredup

答案：

解析：

1、【题目】TheNativeAmericaninterpreterSacajaweawasavaluablememberoftheLewisanddarkexpeditionin1805.

选项：

A.veryfriendly

B.veryuseful

C.verythoughtful.

D.verywealthy

答案：

解析：

1、【题目】AlthoughtheCarbon14methodofdatingoldobjectsisnotfoolproof,itisthebestmethodavailableatpresent

选项：

A.whollyoperational

B.entirelyserviceable

C.fullyreliable

D.completelysafe

答案：

解析：

1、【题目】Formulatedin1823,theMonroeDoctrineassertedthattheAmericaswerenolongeropentoEuropeancolonization.

选项：

A.emphaticallystated

B.belligerently(aggressively)argued

C.accentuated(emphasize)

D.entreated恳求（implore,plea,invoke）

答案：

解析：

1、【题目】TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.

选项：

A.completelydestroy

B.carefullydisguise

C.sustain

D.contain

答案：

解析：