阅读理解Cantreestalk?Yesbutnotinwords．Scientistshavereasonstobelievethattreesdocommunicate(交际)witheachother．Notlongagoresearcherslearnedsomesurprisingthings．Fir

Question

阅读理解

　　Can trees talk?Yes but not in words．Scientists have reasons to believe that trees do communicate(交际)with each other．Not long ago researchers learned some surprising things．First a willow tree(杨柳)attacked in the woods by caterpillars(毛毛虫)changed the chemistry of its leaves and made them taste so terrible that they got tired of the leaves and stopped eating them．Then even more surprising the tree sent a special vapour－a signal causing its neighbours to change the chemistry of their own leaves and make them less tasty．

　　Communication of course doesn't need to be in words．We can talk to each other by smiling raising our shoulders and moving our hands．We know that birds and animals use songs sounds and movements．Bees dance their signals flying in certain patterns that tell other bees ways．So why shouldn't trees have ways of sending messages?

(1)

We can know from the passage that caterpillars do not feed on leaves that ________．
[　　]
A．	have an unpleasant taste
B．	are lying on the ground
C．	have a different shape
D．	bees don't like

(2)

When attacked a willow tree will protect itself by ________．
[　　]
A．	talking to caterpillars
B．	sending a special vapour
C．	changing its leaves' chemistry
D．	changing its leaves' colour

(3)

According to this passage bees communicate with each other by ________．
[　　]
A．	touching one another
B．	making unusual sounds
C．	singing songs
D．	making special movements

(4)

According to this passage how do willow trees communicate with each other?
[　　]
A．	They talk in words．
B．	They send out a special vapour．
C．	They wave their leaves．
D．	They make special sounds．

(5)

The writer believes that the description(描写)in the passage ________．
[　　]
A．	cannot be taken seriously
B．	seems completely reasonable
C．	should no longer be believed
D．	must be checked again

Answer 1

答案：1．A;2．C;3．D;4．B;5．B;