C．harmful D．funny

　　5．A.keep B．explain

　　C．forget D．understand

　　6．A.rethink B．try

　　C．doubt D．remember

　　7．A.shouted B．continued

　　C．complained D．lied

　　8．A.last B．latest

　　C．first D．second

　　9．A.connected B．added

　　C．posted D．sent

　　10．A.smile B．chance

　　C．way D．expression

　　11．A.offer B．find

　　C．show D．tell

　　12．A.wasted B．required

　　C．wanted D．spent

　　13．A.yes B．why

　　C．perhaps D．no

　　14．A.herself B．himself

　　C．yourself D．myself

　　15．A.sincerely B．properly

　　C．deeply D．shortly

　　16．A.hope B．heart

　　C．book D．dream

　　17．A.similar B．different

　　C．surprising D．new

　　18．A.So B．If

　　C．Or D．As

　　19．A.money B．plan

　　C．future D．work

　　20．A.story B．picture

　　C．mirror D．tool

　　Ⅳ.阅读理解

　　My dog seems to run in his sleep. Could he be dreaming?

　　Perhaps. "We can't really ask them，" says vet Melissa Bain, associate professor at the UC Davis School of Veterinary Medicine, "but we think they dream." That's because their brain­wave patterns are similar to those seen in people. Wonder when your own dog might be dreaming? As a dog starts to sleep lightly, and his sleep becomes deeper, his breathing will become more regular, says animal behavior expert Stanley Coren in his book How Dogs Think. "After a period of about 20 minutes，" Coren writes, "his first dream should start."

　　Do dogs and cats have a sense of humor?

　　According to the experts, studies have not yet been done to test pets' sense of humor. But we humans so prize fun in dogs, we've placed them among other playful things. And the fact that cats live willingly with us may be proof that they have a sense of fun.

　　My dog likes to lie in mud puddles (水坑) and other unpleasant places. Why?

Mud puddles? That's easy: In hot months, they're like an instant air conditioner for your furry