英语完形填空,要标准的,不呀自己做的.
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英语完形填空,要标准的,不呀自己做的.
Do you know why different animals or pets have their special colours?Colours in them seem to be used mainly to protect 1 .
Some birds like eating locusts,but birds 2 easily catch them.Why?It is because locusts change their colors together with the change of the colors of 3 .When crops are green,locusts look 4 .But as the harvest time comes,locusts change to 5 brown colour as crops have.Some other pests with different colors from plants are easily found and eaten by others,6 they have to hide themselves for lives and appear only 7 .
If you 8 the animal life,you’ll 9 the main use of colouring is to protect themselves.Bears,lions and other animals move quietly through 10 .They cannot be easily seen by hunters.This is 11 they have the colors much like the trees.
Have you ever noticed an even more strange fact?A kind of fish in the sea can send 12 a kind of very black liquid when it faces 13 .While the liquid spreads over ,its enemies cannot find it.And it immediately swims 14 .So it has lived 15 now though it is not strong at all.
( ) 1.A us B themselves C friends D them
( ) 2.A must B can C can’t D will
( ) 3.A houses B birds C themselves D crops
( ) 4.A green B yellow C red D blue
( ) 5.A so B the same C different D very
( ) 7.A in the morning B at night C at noon D at day
( ) 8.A study B see C find D look at
( ) 9.A say B find C know D tell
( ) 10.A plants B crops C forest D grass
( )11.A reason B cause C why D because
优质解答：
1-5 b c d a b 6 so 7-11 b a b d d 12 out 13 danger 14 away 15 up to
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