1、【题目】Food must be moist in order to have a taste.

选项：

A.appetizing(delicious)

B.nutritious

C.damp

D.chewed

答案：

C

解析：

暂无解析

1、【题目】Alligators still exist in some of the dank 潮湿 swamps and bayous小海湾 of Alabama's coastal regions.

选项：

A.weirdly古怪的fascinating

B.mythical

C.drab(monotonous)

D.unpleasantlyhumid

答案：

D

解析：

暂无解析

1、【题目】InthenortheasternUnitedStates,itrainsintermittently间歇地throughoutthespring.

选项：

A.steadily

B.abundantly

C.periodically

D.daily

答案：

解析：

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】Despitetheproliferationofotherfastermodesoftransportation,therailroadsremainthelargestcarriersofintercityfreightintheUnitedStates.

选项：

A.schemes

B.means

C.tracks

D.variables

答案：

解析：

1、【题目】Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.

选项：

A.hand-carved

B.roughlymade

C.flat

D.heavy

答案：

解析：

1、【题目】Insect pests are among the leading causes of crop failure.

选项：

A.expected

B.chief

C.natural

D.least

答案：

B

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】Urban renewal programs strive to upgrade areas that are becoming slums.

选项：

A.reproach

B.improve

C.fortify

D.uproot

答案：

B

解析：

暂无解析

1、【题目】The Salk vaccine is a major factor in the fight to eradicate polio.

选项：

A.completelydestroy

B.carefullydisguise

C.sustain

D.contain

答案：

A

解析：

暂无解析