高中
The term “multitasking” originally referred to a computer’s ability to carry out several tasks at one time. For many people, multitasking has become a way of life and even a key to success. In fact, some excellent mental aerobic exercises (大脑训练) involve e
题目
The term “multitasking” originally referred to a computer’s ability to carry out several tasks at one time. For many people, multitasking has become a way of life and even a key to success. In fact, some excellent mental aerobic exercises (大脑训练) involve engaging the brain in two or more challenging activities at a time. Although checking e-mail while talking on a phone and reading the newspaper may be second nature for some people, many times multitasking can make us less productive, rather than more. And studies show that too much multitasking can lead to increased stress, anxiety and memory loss.
In order to multitask, the brain uses an area known as the prefrontal cortex (前额叶脑皮层). Brian scans of volunteers performing multiple tasks together show that as they shift from task to task, this front part of the brain actually takes a moment of rest between tasks. You may have experienced a prefrontal cortex “moment of rest” yourself if you’ve ever dialed (拨电话) a phone number and suddenly forgotten who you dialed when the line is answered. What probably occurred is that between the dialing and the answering, your mind shifted to anther thought or task, and then took that “moment” to come back. Research has also shown that for many volunteers, job efficiency (效率) declines while multitasking, as compared to when they perform. only one task at a time.
Multitasking is easiest when at least one of the tasks is habitual, or requires little thought. Most people don’t find it difficult to eat and read the newspaper at the same time. However, when two or more attention-requiring tasks are attempted at one time, people sometimes make mistakes.
We often don’t remember things as well when we’re trying to manage several details at the same time. Without mental focus, we may not pay enough attention to new information coming in, so it never makes it into our memory stores. That is one of the main reasons we forget people’s names---even sometimes right after they have introduced themselves. Multitasking can also affect our relationships. If someone checks their e-mail while on the phone with a friend, they may come off as absent-minded or disinterested. It can also cause that person to miss or overlook key information being passed on to them.
49. Why are some mental aerobic exercises designed to engage people in multitasking?
A. To make them more productive.
B. To reduce their stress and anxiety.
C. To develop their communication skills.
D. To help them perform. daily tasks more easily.
相似问题和答案
第1题：
He used to feel confident ( ) language ability.
A、in the term of
B、in terms of
C、in term of
D、in a term of
第2题：
The central processing unit(CPU), sometimes referred to as the processor, interprets (解释)and carries out the basic(26)that operate a computer.
A．database
B．files
C．block
D．instructions
第3题：
C.
The term “multitasking” originally referred to a computer’s ability to carry out several tasks at one time. For many people, multitasking has become a way of life and even a key to success. In fact, some excellent mental aerobic exercises (人脑训练) involve engaging the brain in two or more challenging activities at a time. Although checking e-mail while talking on a phone and reading the newspaper may be second nature for some people, many times multitasking can make us less productive, rather than more. And studies show that too much multitasking can lead to increased stress, anxiety and memory loss.
In order to multitask, the brain uses an area known as the prefrontal cortex (前额叶脑皮层). Brian scans of volunteers performing multiple tasks together show that as they shift from task to task, this front part of the brain actually takes a moment of rest between tasks. You may have experienced a prefrontal cortex “moment of rest” yourself if you’ve ever dialed (拨电话) and the answering, your mind shifted to anther thought or task, and then look that “moment” to come back. Research has also shown that for many volunteers. Job efficiency (效率) declines while multitasking as compared to when they perform. only one task at a time.
Multitasking is easiest when at least one of the tasks in habitual, or requires little thought. Most people don’t find it difficult to eat and read the newspaper at the same time. However, when two or more attention –requiring tasks are attempted at one time, people sometimes make mistakes.
We often don’t remember things as well when we’re trying to manage several details at the same time. Without mental focus, we may not pay enough attention to new information coming in, so it never makes it into our memory stores. That is one of the main reasons we forget people’s names---even sometimes right after they have introduced themselves. Multitasking can also affect our relationships. If someone checks their e-mail while on the phone with a friend, they may** off as absent-minded or disinterested. It can also cause that person to miss * overlook key information being passed on to them.
49. Why are some mental aerobic exercises designed to engage people in multitasking?
A. To make them more productive.
B. To reduce their stress and anxiety.
C. To develop their communication skills.
D. To help them perform. daily tasks more easily.
第4题：
Please arrange the survey ______ early．
A.to be carried out
B.carry out
C.be carried out
D.will carry out
第5题：
The high-speed data services for the interconnection of computer networks are usually referred to as ______ connections．
A．LANs
B．MANs
C．WANs
D．ATM
解析：计算机网络互连的高速数据服务通常是指局域网的连接。
第6题：
______ measure the company' s ability to meet short-term obligations through the cash conversion cycle.
A．Activity ratio
B．Liquidity ratio
C．Leverage ratio
D．Profitability ratio
解析：liquidity ratio流动性比率。activity ratio资产周转率。leverage ratio杠杆比率。profitability ratio盈利能力比率。
第7题：
With the widespread use of the personal computer, many authorities in the field of(56)have pointed out the need for computer literacy.Unfortunately, there is no(57)agreement as to what the term "computer literacy" means. Some feel that computer literacy means knowing how to make the computer "compute"; that is knowing how to program computers in one or more programming languages.Others feel that knowing how to program is merely a small segment of computer literacy. These people(58)the major emphasis in schools should be on teaching how to effectively use the many software packages that are available.Still others suggest that computer literacy education is not required. They suggest that computers are being so rapidly integrated into our society that using a computer will be as(59)as using a telephone or a video tape recorder, and that special education will not be necessary. (60)of one's definition of computer literacy, it is recognized by most that learning to use a computer is indeed an important skill in modern society.
A．culture
B．science
C．education
D．industry
第8题：
The marketplace where short-term debt securities are traded is referred to as ______.
A．a mortgage market
B．a stock market
C．a bond market
D．a money market
解析：短期债务凭证交易的市场是货币市场，而前三个属于资本市场。mortgage market抵押市场。stock market股票市场。bond market债券市场。
第9题：
If you are loading fruit in reefer spaces and you notice that the fruit is beginning to mold，you should ______.
A.carry the cargo at a cooler temperature than originally planned
B.write up exceptions on the cargo
C.refuse to carry the cargo
D.discharge CO2 into the compartment after loading
第10题：
进行安全检查。（）
- A、Carry out safety inspection.
- B、Carry out more detailed inspection.
- C、Carry out important inspection.
- D、Carry out relevant inspection.
正确答案:A