题目内容
A study has found that people who appear to be constantly distracted (分心) have more “working
memory”, giving them the ability to hold a lot of information in their heads and handle it mentally．
Children at school need this type of memory on a daily basis for a variety of tasks, such as following teachers' instructions or remembering oral sentences.
During the study, volunteers were asked to perform one of two simple tasks during which researchers checked to ask if the participants' minds were wandering.
At the end, participants measured their working memory ability by remembering a series of letters with simple maths questions.
Daniel, a psychologist in the United States, said that those with higher working memory ability reported “more mind wandering during these simple tasks”, but their performance did not suffer．
The results, published online in the journal Psychological Science, appear to confirm previous research that found working memory allows humans to deal with multiple (多种多样的) thoughts at the same time.
Dr Smallwood，in Leipzig，Germany，said: “What this study seems to suggest is that, when circumstances for the task aren’t very difficult, people who have additional working memory resources arrange them to think about things other than what they're doing. ”
Working memory ability is also associated with general measures of intelligence, such as reading comprehension and IQ scores, and also offers a window into the widespread, but not well understood, field of internally (内部地) driven thoughts．
Dr Smallwood added: “Our results suggest the sorts of planning that people do quite often in daily life—when they are on the bus, when they are cycling to work, when they are in the shower—are probably supported by working memory.
72. What can be a suitable title for the text?
A. Why wandering mind is necessary B. A new measure to test IQ
C. The importance of working memory D. Wandering mind is sharper
73. Researcher can learn if the participants' minds were wandering by .
A. checking it on the computer
B. following a series of instructions
C. asking them while they are performing tasks
D. measuring their working memory ability
74. The underlined word “them” refers to .
A. the participants B. the working memory resources
C. the tasks D. the working circumstances
75. What can we learn from the passage?
A. It's not a bad thing for children with wandering minds.
B. The result of the study doesn't agree with the previous research.
C. Circumstances might make children's heads clever.
D. Only working memory can handle difficult problems.
DCBA
举一反三单元同步过关卷系列答案Section B
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
|
A．additional |
B．producing |
C．regular |
D．predicted E. identified |
E atmosphere G. matched H. reducing I. carried J. increase
Forests in the northern half of the globe could be growing faster now than they were 200 years ago as a result of climate change, according to a study of trees in eastern America. The trees appear to have faster growth rates due to longer growing seasons and higher concentrations (浓度) of carbon dioxide in the ___41___.
Geoffrey Parker, a scientist at the Smithsonian Environmental Research Centre in Edgewater. Maryland, said that the increase ha the rate of growth was unexpected and might be ___42___ to the higher temperatures and longer growing seasons documented in the region. The growth may also be influenced by the significant ___43___ in atmospheric CO2, he said.
"We made a list of reasons these forests could be growing faster and then excluded half of them," Dr. Parker said. Their study suggests that northern forests may become increasingly important in ___44___ the influence of man-made CO2 on the climate.
Dr. Parker and his colleagues have ___45___ out a detailed record of the trees on a(n) ___46___ basis since 1987. They calculated that due to the global warming the forest is producing ___47___ tons of wood each year.
The scientists ___48___ the land with trees at different stages of growth and found that both young and old trees were showing increased growth rate. More than 90 per cent of the tree groups had grown by between two and four times faster than the scientists had ___49___ from estimates of the long-term rates of growth.
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
|
A. additional B. producing C. regular D. predicted E. identified E atmosphere G. matched H. reducing I. carried J. increase |
Forests in the northern half of the globe could be growing faster now than they were 200 years ago as a result of climate change, according to a study of trees in eastern America. The trees appear to have faster growth rates due to longer growing seasons and higher concentrations (浓度) of carbon dioxide in the ___1.___.
Geoffrey Parker, a scientist at the Smithsonian Environmental Research Centre in Edgewater. Maryland, said that the increase ha the rate of growth was unexpected and might be ___2.___ to the higher temperatures and longer growing seasons documented in the region. The growth may also be influenced by the significant ___3.___ in atmospheric CO2, he said.
"We made a list of reasons these forests could be growing faster and then excluded half of them," Dr. Parker said. Their study suggests that northern forests may become increasingly important in ___4.___ the influence of man-made CO2 on the climate.
Dr. Parker and his colleagues have ___5.___ out a detailed record of the trees on a(n) ___6.___ basis since 1987. They calculated that due to the global warming the forest is producing ___7.___ tons of wood each year.
The scientists ___8.___ the land with trees at different stages of growth and found that both young and old trees were showing increased growth rate. More than 90 per cent of the tree groups had grown by between two and four times faster than the scientists had ___9.___ from estimates of the long-term rates of growth.
Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
| A. additional B. producing C. regular D . predicted E. identified E atmosphere G. matched H. reducing I. carried J. increase |
Forests in the northern half of the globe could be growing faster now than they were 200 years ago as a result of climate change, according to a study of trees in eastern America. The trees appear to have faster growth rates due to longer growing seasons and higher concentrations (浓度) of carbon dioxide in the ___41___.
Geoffrey Parker, a scientist at the Smithsonian Environmental Research Centre in Edgewater. Maryland, said that the increase ha the rate of growth was unexpected and might be ___42___ to the higher temperatures and longer growing seasons documented in the region. The growth may also be influenced by the significant ___43___ in atmospheric CO2, he said.
"We made a list of reasons these forests could be growing faster and then excluded half of them," Dr. Parker said. Their study suggests that northern forests may become increasingly important in ___44___ the influence of man-made CO2 on the climate.
Dr. Parker and his colleagues have ___45___ out a detailed record of the trees on a(n) ___46___ basis since 1987. They calculated that due to the global warming the forest is producing ___47___ tons of wood each year.
The scientists ___48___ the land with trees at different stages of growth and found that both young and old trees were showing increased growth rate. More than 90 per cent of the tree groups had grown by between two and four times faster than the scientists had ___49___ from estimates of the long-term rates of growth.
| Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need. | |
a result of climate change, according to a study of trees in eastern America. The trees appear to have faster growth rates due to longer growing seasons and higher concentrations (浓度) of carbon dioxide in the 1______. Geoffrey Parker, a scientist at the Smithsonian Environmental Research Centre in Edgewater. Maryland, said that the increase ha the rate of growth was unexpected and might be 2______ to the higher temperatures and longer growing seasons documented in the region. The growth may also be influenced by the significant 3______ in atmospheric CO2, he said. "We made a list of reasons these forests could be growing faster and then excluded half of them," Dr Parker said. Their study suggests that northern forests may become increasingly important in 4______ the influence of man-made CO2 on the climate. Dr Parker and his colleagues have 5______ out a detailed record of the trees on a(n) 6______ basis since 1987. They calculated that due to the global warming the forest is producing 7______ tons of wood each year. The scientists 8______ the land with trees at different stages of growth and found that both young and old trees were showing increased growth rate. More than 90 per cent of the tree groups had grown by between two and four times faster than the scientists had 9______ from estimates of the long-term rates of growth. |