题目列表(包括答案和解析)
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．
1.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．
2.According to Paragraph 2, why may a person suddenly forget who has called?
A．He may leave his prefrontal cortex temporarily damaged．
B．He is probably interrupted by another task．
C．He is probably not very familiar with the person he has called．
D．He may need a rest between dialing and speaking.
3.People tend to make mistake when ____.
A．they perform several challenging tasks at a time．
B．new messages are processed one after another
C．their relationships with others are affected
D．the tasks require little thought
4.What is the main idea of the passage?
A．Multitasking has become a way of life．
B．Multitasking often leads to efficiency decline．
C．Multitasking exercises need to be improved．
D．Multitasking enables people to remember things better．
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．
1．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．
2．According to Paragraph 2, why may a person suddenly forget who has called?
A．He may leave his prefrontal cortex temporarily damaged．
B．He is probably interrupted by another task．
C．He is probably not very familiar with the person he has called．
D．He may need a rest between dialing and speaking.
3．People tend to make mistake when ____.
A．they perform several challenging tasks at a time．
B．new messages are processed one after another
C．their relationships with others are affected
D．the tasks require little thought
4．What is the main idea of the passage?
A．Multitasking has become a way of life．
B．Multitasking often leads to efficiency decline．
C．Multitasking exercises need to be improved．
D．Multitasking enables people to remember things better．
阅读下面短文，掌握其大意，然后从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。(共20小题；每小题1.5分，满分30分)
Mobile phones are everywhere in big cities. It seems that 36 can survive without one. Mobile phones are a great 37 to stay connected with friends and family. 38 , it is important to remember that there are certain times 39 you should not be using your phone, especially as a student, during school.
40 you are in class, you should not be sending your friends text messages 41 taking phone calls. Your classmates and teacher should not have to deal with this rude 42 . Aren’t you at school to learn?
In the United States, students would never be allowed to 43 their mobile phones during class. If you were to send or 44 a text message you would probably be kicked 45 class. It is very disturbing to hear a lot of tones and ringing during 46 . There are many more rules for mobile phone use in America and it is to 47 respect for those around you.
As a teacher in China, I have to 48 students using mobile phones every day. I have told my class to 49 their phones, but many students do not listen. The 50 to be connected all the time seems to be more 51 than the desire to learn.
It’s easy to understand 52 it is so tempting(诱惑人的) to have your phone on during class. It seems so easy just to send a short text message; it’s not hurting anyone, is it? But you may actually be hurting 53 when you do this. Your teacher knows when you use your phone and may give you a 54 grade. Sending a text message also takes your attention away from what’s going on in class, you may 55 something important.
36. A. one B. somebody C. someone D. no one
37. A. way B. road C. method D. path
38. A. But B. However C. So D. Therefore
39. A. which B. that C. when D. where
40. A. After B. Before C. Because D. If
41. A. or B. and C. as well as D. instead of
42. A. act B. action C. habit D. behavior
43. A. have B. take C. use D. send
44. A. receive B. accept C. make D. get
45. A. of B. off C. out D. out of
46. A. school B. class C. office D. home
47. A. ask B. suggest C. show D. answer
48. A. do B. deal C. do with D. deal with
49. A. turn on B. turn down C. turn off D. turn in
50. A. desire B. wish C. hope D. expect
51. A. possible B. important C. necessary D. interesting
52. A. why B. what C. that D. whether
53. A. himself B. herself C. ourselves D. yourself
54. A. lower B. higher C. better D. upper
55. A. forget B. remember C. miss D. leave
Mobile phones are everywhere in big cities. It seems that 16 can survive without one. Mobile phones are a great 17 to stay connected with friends and family. 18 , it is important to remember that there are certain times 19 you should not be using your phone, especially as a student, during school.
20 you are in class, you should not be sending your friends text messages 21 taking phone calls. Your classmates and teacher should not have to deal with this rude 22 . Aren’t you at school to learn?
In the United States, students would never be allowed to 23 their mobile phones during class. If you were to send or 24 a text message you would probably be kicked 25 class. It is very disturbing to hear a lot of tones and ringing during 26. There are many more rules for mobile phone use in America and it is to 27 respect for those around you.
As a teacher in China, I have to 28 students using mobile phones every day. I have told my class to 29 their phones, but many students do not listen. The 30 to be connected all the time seems to be more 31 than the desire to learn.
It’s easy to understand 32 it is so tempting(诱惑人的) to have your phone on during class. It seems so easy just to send a short text message; it’s not hurting anyone, is it? But you may actually be hurting 33 when you do this. Your teacher knows when you use your phone and may give you a 34 grade. Sending a text message also takes your attention away from what’s going on in class, you may 35 something important.
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| Mobile phones are everywhere in big cities. It seems that 1 can survive without one. Mobile phones are a great 2 to stay connected with friends and family. 3 , it is important to remember that there are certain times 4 you should not be using your phone, especially as a student, during school. 5 you are in class, you should not be sending your friends text messages 6 taking phone calls. Your classmates and teacher should not have to deal with this rude 7 . Aren't you at school to learn? In the United States, students would never be allowed to 8 their mobile phones during class. If you were to send or 9 a text message you would probably be kicked 10 class. It is very disturbing to hear a lot of tones and ringing during 11 . There are many more rules for mobile phone use in America and it is to 12 respect for those around you. As a teacher in China, I have to 13 students using mobile phones every day. I have told my class to 14 their phones, but many students do not listen. The 15 to be connected all the time seems to be more 16 than the desire to learn. It's easy to understand 17 it is so tempting(诱惑人的)to have your phone on during class. It seems so easy just to send a short text message; it's not hurting anyone, is it? But you may actually be hurting 18 when you do this. Your teacher knows when you use your phone and may give you a 19 grade. Sending a text message also takes your attention away from what's going on in class, you may 20 something important. | ||||
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