1、【题目】Insectpestsareamongtheleadingcausesofcropfailure.

选项：

A.expected

B.chief

C.natural

D.least

答案：

解析：

1、【题目】Batsfly,ratherthanglide,andthusaretheonlymammalscapableoftrueflight.

选项：

A.straight

B.safe

C.real

D.rapid

答案：

解析：

1、【题目】Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.

选项：

A.almost

B.definitely

C.already

D.universally

答案：

解析：

1、【题目】Alligatorsstillexistinsomeofthedank潮湿swampsandbayous小海湾ofAlabama'scoastalregions.

选项：

A.weirdly古怪的fascinating

B.mythical

C.drab(monotonous)

D.unpleasantlyhumid

答案：

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 fear of smallpox, which terrorized the eighteenth century, has no analogy(likeness) today.

选项：

A.occurrence

B.remnants残留物

C.witnesses

D.parallel

答案：

D

解析：

暂无解析

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