题目内容

Do you like dolphins?Dolphins live   1   water, but they are not fish.They are mammals(哺乳动物)that live in water.They have to(不得不)breathe(呼吸)air to the top of the water very often.A dolphin’s nose isn’t   2   to see.It’s just a very small hole   3   top of the dolphin’s head.This hole is called a blowhole.A dolphin   4   up every minute or so to breathe.It opens blowhole and takes air in, and then goes back into the water again.It can stay   5   the water for six or seven minutes if it has to.A dolphin’s ears are very small,   6   its mouth is very   7  .It has almost one hundred teeth(牙齿).A dolphin   8   very fast.Scientists are studying ways to   9   boat go faster through the   10  

(1)

[  ]

A.

in

B.

on

C.

above

D.

under

(2)

[  ]

A.

easy

B.

difficult

C.

good

D.

fast

(3)

[  ]

A.

on

B.

on the

C.

at

D.

above

(4)

[  ]

A.

goes

B.

comes

C.

walks

D.

runs

(5)

[  ]

A.

at

B.

up

C.

on

D.

under

(6)

[  ]

A.

if

B.

or

C.

but

D.

so

(7)

[  ]

A.

small

B.

big

C.

good

D.

nice

(8)

[  ]

A.

goes

B.

swims

C.

runs

D.

walks

(9)

[  ]

A.

make

B.

ask

C.

tell

D.

talk to

(10)

[  ]

A.

air

B.

room

C.

land

D.

water

答案:1.A;2.A;3.A;4.B;5.D;6.C;7.B;8.B;9.A;10.D;
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