e.g. He must have gone to Wuhan. He may / might / could have gone to Wuhan. He can not / could not have gone to Wuhan. Can he have gone to Wuhan? can/must/will等+have+done用来对过去发生的情况做出语气强 弱不同的推测.具体使用时请注意以下几点: ① can一般用于疑问句和否定句, 极少用于肯定句. e.g. ---Can she have gone to school? ---No, she can't have gone to school. I saw her just now. ② may表推测.一般不用于疑问句,疑问句中该用can, could或might. e.g. How could he have forgotten such an important thing? Might you have met him somewhere? ③ could, may, might 用于肯定句语气较弱.must用于肯定句语气很强; may, might 用于否定句语气较弱.can, could 用于否定句语气很强. e.g. He could/may/might have gone to school. 他可能上学去了. He must have gone to school. 他肯定是上学去了. He may/might not have gone to school. 他也许没去上学. He can't/couldn't have gone to school. 他肯定没去上学. ④ must表推测.一般不用于否定句,否定句中该用can或could. 误:We mustn't have met before. 正:We can't have met before. needn't + have + done 可用来表示“已做了多余的事 . e.g. There is no school today. You needn't have come. could + have + done 可用来表示没做某事的“遗憾 . e.g. She came here on foot, but she could have come by bus. could / might + have + done 也可用来表示委婉的批评. e.g. You could have come 5 minutes earlier. You might at least have written me a letter. 在反意问句中.表推测的情态动词不出现在简短问句部分,取而代之的应是情态动 词.句中有过去时间状语的.问句部分用过去时.否则.用现在完成时. e.g. He must have been there yesterday, wasn't he? He must have been there, hasn't he? He can't have been there yesterday, was he? He can't have been there, has he? 查看更多

 

题目列表(包括答案和解析)

阅读理解

  Tom Dyson tried to find out what his new machine could do. One day he fixed the small box to a flowering plant that was growing in a pot. He didn't say anything at all, but he began to think some cruel thoughts.

  “I'm going to cut off these flowers. They're getting old and ugly. So I'll cut them off…”

  The needle on the machine climbed quickly from  zero to 8, then 10, 12, 15. It stopped at 17. The plant was in trouble! Something was worrying it. Was it fear or sadness? The thought of being cut? The flowers bent their heads. They suddenly looked old and tired, and Tom felt sorry for them.

  “No, no!” he cried.“I won't cut you. You're my friends. I just want you to grow and be lovely. I'll take you outside, into the sunshine. You'll like that, won't you?”

  The flowers lifted their heads slowly and seemed to smile at him. The needle returned to zero. Tom put away the machine, picked up the plant and walked outside. It was very nice in the garden that morning.

  All plants enjoy their owner's love and care and kindness. They know the sound of their voice. They also seem to understand people's thoughts. So if you have flowers of your own, think about them with love. They will return your kindness in the only way they can: they will grow strong and beautiful.

1.Choose the right order of the events given in the passage.

[  ]

a.The needle pointed to 17.

b.Tom felt sorry for the flowers.

c.Tom thought of cutting off the flowers.

d.The flowers looked old and tired.

e.Tom fixed the machine to a plant.

f.Tom took the plant outside.

g.The needle returned to zero.

h.Tom cried, “I won't cut you.”

[  ]

A.e; a; g; h; d; b; c; f

B.c; e; d; a; b; h; g; f

C.e; c; a; d; h; b; f; g

D.e; c; a; d; b; h; g; f

2.The only way in which plants can show their love is ________.

[  ]

A.enjoying their owner's love

B.bringing up nicely

C.holding up their heads

D.smiling at their owners

3.According to the passage, which of the following is true?

[  ]

A.Tom wanted to cut off the flowers.

B.Tom said nothing, but the flowers could understand him.

C.The machine didn't work properly.

D.The flowers were getting bad - looking

查看答案和解析>>

阅读理解

  Tom Dyson tried to find out what his new machine could do. One day he fixed the small box to a flowering plant that was growing in a pot. He didn't say anything at all, but he began to think some cruel thoughts.

  “I'm going to cut off these flowers. They're getting old and ugly. So I'll cut them off…”

  The needle on the machine climbed quickly from  zero to 8, then 10, 12, 15. It stopped at 17. The plant was in trouble! Something was worrying it. Was it fear or sadness? The thought of being cut? The flowers bent their heads. They suddenly looked old and tired, and Tom felt sorry for them.

  “No, no!” he cried.“I won't cut you. You're my friends. I just want you to grow and be lovely. I'll take you outside, into the sunshine. You'll like that, won't you?”

  The flowers lifted their heads slowly and seemed to smile at him. The needle returned to zero. Tom put away the machine, picked up the plant and walked outside. It was very nice in the garden that morning.

  All plants enjoy their owner's love and care and kindness. They know the sound of their voice. They also seem to understand people's thoughts. So if you have flowers of your own, think about them with love. They will return your kindness in the only way they can: they will grow strong and beautiful.

1.Choose the right order of the events given in the passage.

[  ]

a.The needle pointed to 17.

b.Tom felt sorry for the flowers.

c.Tom thought of cutting off the flowers.

d.The flowers looked old and tired.

e.Tom fixed the machine to a plant.

f.Tom took the plant outside.

g.The needle returned to zero.

h.Tom cried, “I won't cut you.”

[  ]

A.e; a; g; h; d; b; c; f

B.c; e; d; a; b; h; g; f

C.e; c; a; d; h; b; f; g

D.e; c; a; d; b; h; g; f

2.The only way in which plants can show their love is ________.

[  ]

A.enjoying their owner's love

B.bringing up nicely

C.holding up their heads

D.smiling at their owners

3.According to the passage, which of the following is true?

[  ]

A.Tom wanted to cut off the flowers.

B.Tom said nothing, but the flowers could understand him.

C.The machine didn't work properly.

D.The flowers were getting bad - looking

查看答案和解析>>

A. campaign      B. noted          C. focus              D. careful   E. released

F. fall           G. trend        H. dead         I. major         J. extended

WASHINGTON (Reuters) — The U.S. unemployment rate probably rose in October as employers stepped up hiring only slightly, underscoring President Barack Obama’s vulnerability in next week’s presidential election.

Employers likely added 125,000 jobs to their payrolls last month, according to a Reuters survey of economists. That would be up from 114,000 in September, but would   41  short of what is needed to quickly cut the jobless rate.

Indeed, economists expect the unemployment rate — a key   42  in the neck-and-neck race for the White House ——to tick up by a tenth of a percentage point to 7.9 percent, reversing part of a surprise drop seen in September.

The Labor Department's closely watched report, which will be   43 at 8:30 a.m. (12:30 GMT) on Friday, will be the last  44 report card on the economy before Tuesday's presidential election, which pits (使竞争)President Obama against Republican Mitt Romney.

If economists are right, it will show the eighth straight month of dull job growth, a worrisome  45 that would likely reinforce the Federal Reserve's resolve to keep easy money policies in place until the economy shows more vigor.

"The weakness in overall economic growth momentum has   46 into the last quarter of the year," said Millan Mulraine, an economist at TD Securities in New York.

Romney has made the nation's feeble jobs market, which has caused Obama a lot of trouble since he took office in 2009, the centerpiece of his   47 . The last Reuters/Ipsos daily tracking poll showed Obama and Romney in a   48  heat.

Still, the report could provide fodder for both candidates. Some economists have   49  an increase in the jobless rate might have a silver lining if it is driven by Americans pouring into the labor market to restart job hunts.

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根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

提示 A young boy arrives with a fishing rod.

GrandpaHi, there!

AlbertHi.

Grandpa 1 

AlbertAlbert.

GrandpaAre you all alone?

AlbertYes, sir.

Grandpa 2 

AlbertI'm ten.

Philip 3 

AlbertHe's up there at the lodge.

Philip 4 

AlbertYes, sir.

PhilipOK, Robbie, maybe you should watch him. The water's pretty deep here.

Robbie 5 

a Where are you?

b How old are you, Albert?

c Where is your father?

d What's your name?

e Does he know you are here?

f Does anyone know you are here?

g. I'll watch him, Grandpa.

查看答案和解析>>

阅读理解训练

  Tom Dyson tried to find out what his new machine could do. One day he fixed the small box to a flowering plant that was growing in a pot. He didn't say anything at all, but he began to think some cruel thoughts.

  “I'm going to cut off these flowers. They're getting old and ugly. So I'll cut them off…”

  The needle on the machine climbed quickly from zero to 8, then 10, 12, 15. It stopped at 17. The plant was in trouble! Something was worrying it. Was it fear or sadness? The thought of being cut? The flowers bent their heads. They suddenly looked old and tired, and Tom felt sorry for them.

  “No, no!”he cried. “I won't cut you. You're my friends. I just want you to grow and be lovely. I'll take you outside, into the sunshine. You'll like that, won't you?”

  The flowers lifted their heads slowly and seemed to smile at him. The needle returned to zero. Tom put away the machine, picked up the plant and walked outside. It was very nice in the garden that morning.

  All plants enjoy their owner's love and care and kindness. They know the sound of their voice. They also seem to understand people's thoughts. So if you have flowers of your own, think about them with love. They will return your kindness in the only way they can; they will grow strong and beautiful.

1.Choose the right order of the events given in the passage.

a.The needle pointed to 17.

b.Tom felt sorry for the flowers.

c.Tom thought of cutting off the flowers.

d.The flowers looked old and tired.

e.Tom fixed the machine to a plant.

f.Tom took the plant outside.

g.The needle returned to zero.

h.Tom cried, “I won't cut you.”

[  ]

A.e; a; g; h; d; b; c; f;

B.c; e; d; a; b; h; g; f

C.e; c; a; d; h; b; f; g

D.e; c; a; d; b; h; g; f

2.The only way in which plants can show their love is ________.

[  ]

A.enjoying their owner's love

B.bringing up nicely

C.holding up their heads

D.smiling at their owners

3.According to the passage, which of the following is true?

[  ]

A.Tom wanted to cut off the flowers.

B.Tom said nothing, but the flowers could understand him.

C.The machine didn't work properly

D.The flowers were getting bad - looking.

查看答案和解析>>


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