must 一定.肯定 can may 可能 might, could 有可能.也许 can’t 不可能.不会1.The dictionary be mine. It has my name on it 查看更多

 

题目列表(包括答案和解析)

—Must I return the hook tomorrow morning?

—No, you _ .You can keep it longer.

A. mustn't  B. can't    C. needn't   D. couldn't

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完形填空。

  One day,two friends were walking through the desert.  1   the journey they had a quarrel,and one friend hit   2   one in the face.

The one who was hit was hurt,  3   he didn't say anything.Instead,he wrote in the sand,“Today my best friend hit me in the face.”

  They kept on   4   until they found an oasis(绿洲).They decided to get some water.The one who had been hit fell into the mire(泥潭)and was in danger,but the friend   5   him.

  When he felt all right,he wrote on   6  ,“Today my best friend saved my life.”

  The one who had hit and saved his best friend asked him,“After I   7   you,you wrote in the sand and now you write on a stone.  8  ?”

  The other friend replied,“When someone hurts us,we should write it down in sand where winds of forgiveness(宽恕)can blow   9   away.But when someone does something   10   for us,we must write it on stone where no wind can ever blow it away.”

(1)

[  ]

A.

After

B.

During

C.

For

D.

Before

(2)

[  ]

A.

some

B.

each

C.

another

D.

the other

(3)

[  ]

A.

and

B.

so

C.

but

D.

or

(4)

[  ]

A.

walking

B.

jumping

C.

singing

D.

running

(5)

[  ]

A.

hurt

B.

left

C.

hit

D.

saved

(6)

[  ]

A.

the desert

B.

a stone

C.

a tree

D.

the sand

(7)

[  ]

A.

killed

B.

helped

C.

hurt

D.

quarreled with

(8)

[  ]

A.

When

B.

What

C.

How

D.

Why

(9)

[  ]

A.

it

B.

these

C.

them

D.

this

(10)

[  ]

A.

interesting

B.

good

C.

dangerous

D.

harmful

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一Bob,shall we go and meet our new classmate?

一Sorry.I'm busy now.But you_________ ask David to go with you.He is free.

A.need  B.may  C.would  D.must

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Every object has weight. But the center of its weight is not always in the middle of the object. If the top of an object is heavier than its bottom, it will fall over easily. We say that its center of gravity is high. But if the bottom is heavier, it won’t fall easily. Then we say that its center of gravity is low.

Look at the first picture. This empty box must fall over, because its center of gravity (C) is not above the line of its bottom (AB).

Now look at the second picture. There is some heavy iron in the bottom of this box. It will not fall, because its center of gravity is above its bottom.

1.If the bottom of an object is ______ its top, it will fall over easily.

A. lighter than   B. heavier than   C. no heavier than    D. as heavy as

2.Please point out which box will not fall.

3.The main idea of the passage is _________.

A. why things fall over             B. a low center of gravity

C. a high center of gravity               D. that everything has weight

 

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一How was the youth club last night,Mark?

一It was great fun.You _____ come.

A.must    B.can    C.should    D.may

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