2017
职称英语考试最新练习题（附答案）
　　Wonder
Webs
　　Spider
webs
aremore
than
homes,
andthey
areingenious
traps.
Andtheworld
’sbest
webspinner
maybetheGolden
OrbWeaver
spider.
Thefemale
OrbWeaver
spins
aweboffibers
thin
enough
tobeinvisible
toinsect
prey,
yet1enough
tosnare
aflying
bird
without
breaking.
　　Thesecret
oftheweb’sstrength?
Atype
ofsuper-resilient
2called
dragline.
When
thefemale
spider
isready
to3theweb’sspokes
andframe,
sheuses
herlegs
todraw
theairy
thread
outthrough
ahollow
nozzle
inherbelly. ...