You have waited 45 minutes for the valuable 10 minutes' break between classes．But when the bell for the next class rings, you can't 36 how quickly time has passed．

If you are familiar with this__37_,you'll know how time flies when you are having fun．And how time 38 when you are bored．Now scientists have 39 a reason why this is the case．

Scans have shown that patterns of activity in the brain_ 40 according to how we focus on a task．When we are 41 ．we concentrate more on how time is passingAnd this makes our brains_42_the clock is ticking more slowly．

In an experiment 43 by a French laboratory, 12 volunteers watched an image 44 researchers monitored their brain activity．The volunteers were told to 45 concentrate on how long an image appeared for, then 46 _the color of the image, and thirdly, study both duration（持续的时间） and color．The results showed that 47 was more active when the volunteers paid 48 subjects．

It is thought that if the brain is 　49　 focusing on many aspects of a task, it has to 50 its resources, and pays less attention to the clock．51 ,time passes without us really 52 it, and seems to go quickly．If the brain is not so active, it concentrates its__53___energies on monitoring the passing of time．__54_．time seems to drag．

Next time you feel bored__55__,perhaps you should pay more attention to what the teacher is saying!

36．A．guess　　　　 　 B．learn　　　　　 C．believe　　　 　　　 D．doubt

37．A．view　　　 　　　 B．point　　　　　 　　 C．scene　　　 　　　 D．experience

38．A．drags　　　　 B．stops　　　　 　　　　 C．backs　　　 　　　 D．gains

39．A．thought over　 　 B．made up　　　　　 C．suggested　　 　　 D．come up with

40．A．change　　 　　 B．develop　　　 　　　　 C．grow　　　　　 D．slow

41．A．sleepy　　　 　 B．bored　　　　　　 C．excited　　　　 　 D．active

42．A．report　 　　　　 B．think　　　　　 　　 C．decide　 　　　　　　　 D．see

43．A．produced　 　　 B．carried　　　　　 C．tried　　　　　 　 D．performed

44．A．so　　　　　 　 B．when　　　　　 　　 C．while　　　　　 D．but

45．A．partly　　　 　　 B．quickly　　　　　 　 C．how　　　　　 D．first

46．A．remember　　 　 B．focus on　　　　　 C．forget　　　　 　 D．tell apart

47．A．the researchers B．the experiment　　 C．the clock　　　 D．the brain

48．A．much attention to　　　　　　　　　　　　　　　　　　　 B．more attention to 　　　　　　　　　　　　　

　　　 C．attention to many　 　　　　　　　　　　　　　　　　 D．attention to more

49．A．busy　　 　　　　 B．likely　　　　 　　　 C．ready　　 　　　　　 D．sure

50．A．focus　 　　　　　 B．gather　　　 　　 C．reach　　　　　　　 　　　　　　　　　　　　 D．spread

51．A．However　　 　 B．Furthermore 　　 C．Therefore　　　　 　　 D．Finally

52．A．recognizing 　　 B．watching　　 　 C．noticing　　　　　　 D．counting

53．A．enough　　 　　　 B．full　　　　 　　 C．right　　　　　　　 D．proper

54．A．In fact　　　 　 B．As a result　　 C．For example　　　 　　 D．Instead

55．A．in class　　 　　 B．with work　 　 C．in mind　　　　　　 　 D．of lessons

You have waited 45 minutes for the valuable 10 minutes’break between classes.But when the bell for the next class rings，you can’t__36__how quickly time has passed.

If you are familiar with this__37__，you’ll know how time flies when you are having fun and__38__when you are bored.Now scientists have__39__a reason why this is the case.

Scans have shown that patterns of activity in the brain__40__according to how we focus on a task.When we are__41__，we concentrate (关注) more on how time is passing.And this makes our brains__42__the clock is ticking more slowly.

In an experiment__43__by a French laboratory,12 volunteers watched an image__44__researchers monitored their brain activity.

The volunteers were told to__45__concentrate on how long an image appeared for，then__46__the color of the image，and thirdly，study both duration and color.The results showed that__47__was more active when the volunteers paid__48__subjects.

It is thought that if the brain is__49__focusing on many aspects of a task，it has to__50__its resources，and pays less attention to the clock.

__51__，time passes without us really__52__it，and seems to go quickly.If the brain is not so active，it concentrates its__53__energies on monitoring the passing of time.__54__，time seems to drag.

Next time you feel bored__55__，perhaps you should pay more attention to what the teacher is saying!

36．A.guess                                            B．learn 

C．believe                                               D．doubt

37．A.view                                              B point 

C．scene                                                 D．experience

38．A.drags                                             B．stops 

C．backs                                                 D．gains

39．A.explained                                       B．given 

C．mentioned                                            D．found

40．A.change                                          B．develop 

C．grow                                                 D．slow

41．A.sleepy                                            B．bored 

C．excited                                               D．active

42．A.report                                            B．think 

C．decide                                                D．see

43．A.produced                                       B．carried 

C．tried                                                   D．performed

44．A.so                                                 B．when 

C．while                                                 D．but

45．A.partly                                            B．quickly 

C．how                                                   D．first

46．A.remember                                      B．focus on 

C．forget                                                D．tell apart

47．A.the researchers                               B．the experiment

C．the clock                                            D．the brain

48．A.much attention to                            B．more attention to

C．attention to many                                D．attention to more

49．A.busy                                              B．likely 

C．ready                                                 D．sure

50．A.focus                                            B．gather 

C．reach                                                 D．spread

51．A.However                                        B．Furthermore 

C．Therefore                                           D．Finally

52．A.recognizing                                    B．watching 

C．noticing                                              D．counting

53．A.enough                                          B．full 

C．right                                                  D．proper

54．A.In fact                                           B．As a result 

C．For example                                       D．In case

55．A.in class                                          B．with work 

C．in mind                                              D．of lessons

You have waited 45 minutes for the valuable 10 minutes’ break between classes. But when the bell for the next class rings, you can’t   36   how quickly time has passed.

If you are familiar with this   37  , you’ll know how time flies when you are having fun and  38   when you are bored. Now scientists have   39   a reason why this is the case.

Scans have shown that patterns of activity in the brain   40   according to how we focus on a task. When we are   41  , we concentrate more on how time is passing. And this makes our brains   42   the clock is ticking more slowly.

In an experiment   43   by a French laboratory, 12 volunteers watched an image   44   researchers monitored their brain activity.

The volunteers were told to   45   concentrate on how long an image appeared for, then  46   the color of the image, and thirdly, study both duration and color. The results showed that  47   was more active when the volunteers paid   48   subjects.

It is thought that if the brain is   49   focusing on many aspects of a task, it has to  50  its resources, and pays less attention to the clock.  51 , time passes without us really   52   it, and seems to go quickly. If the brain is not so active, it concentrates its   53   energies on monitoring the passing of time.   54  , time seems to drag.

Next time you feel bored   55  , perhaps you should pay more attention to what the teacher is saying!

A. guess                         B. learn                              C. believe                             D. doubt

A. view                            B. point                              C. scene                               D. experience

 A. drags                       B. stops                             C. backs                               D. gains

 A. thought over                  B. made up                       C. suggested                      D. come up with

A. change                       B. develop                         C. grow                                D. slow

A. sleepy                        B. bored                                      C. excited                            D. active

A. report                        B. think                              C. decide                             D. see

A. produced                  B. carried                          C. tried                                 D. performed

 A. so                             B. when                             C. while                                D. but

A. partly                       B. quickly                           C. how                                  D. first

 A. remember           B. focus on                        C. forget                              D. tell apart

A. the researchers    B. the experiment          C. the clock                         D. the brain

 A. much attention to       B. more attention to      C. attention to many        D. attention to more

 A. busy                       B. likely                              C. ready                               D. sure

A. focus                        B. gather                           C. reach                               D. spread

 A. However              B. Furthermore               C. Therefore                       D. Finally

A. recognizing            B. watching                      C. noticing                           D. counting

A. enough                    B. full                                  C. right                                 D. proper

 A. In fact                    B. As a result                    C. For example                  D. Instead

A. in class                    B. with work                     C. in mind                            D. of lessons

You have waited 45 minutes for the valuable 10 minutes’ break between classes. But when the bell for the next class rings, you can’t   36   how quickly time has passed.

If you are familiar with this   37  , you’ll know how time flies when you are having fun-and  38   when you are bored. Now scientists have   39   a reason why this is the case.

Scans have shown that patterns of activity in the brain   40   according to how we focus on a task. When we are   41  , we concentrate more on how time is passing. And this makes our brains   42   the clock is ticking more slowly.

In an experiment   43   by a French laboratory, 12 volunteers watched an image   44  

researchers monitored their brain activity.

The volunteers were told to   45   concentrate on how long an image appeared for, then

  46   the color of the image, and thirdly, study both duration and color. The results showed that  47   was more active when the volunteers paid   48   subjects.

It is thought that if the brain is   49   focusing on many aspects of a task, it has to  50  its resources, and pays less attention to the clock.  51 , time passes without us really   52   it, and seems to go quickly. If the brain is not so active, it concentrates its   53   energies on monitoring the passing of time.   54  , time seems to drag.

Next time you feel bored   55  , perhaps you should pay more attention to what the teacher is saying!

36．A．guess                      B．learn                      C．believe                   D．doubt

37．A．view                      B．point                      C．scene                      D．experience

38．A．drags                      B．stops                      C．backs                      D．gains

39．A．thought over           B．made up                 C．suggested                D．come up with

40．A．change                   B．develop                  C．grow                      D．slow

41．A．sleepy                    B．bored                            C．excited                   D．active

42．A．report                     B．think                      C．decide                    D．see

43．A．produced                B．carried                    C．tried                       D．performed

44．A．so                          B．when                      C．while                      D．but

45．A．partly                     B．quickly                   C．how                       D．first

46．A．remember               B．focus on                 C．forget                     D．tell apart

47．A．the researchers        B．the experiment        C．the clock                 D．the brain

48．A．much attention to                                       B．more attention to    

    C．attention to many                                        D．attention to more

49．A．busy                       B．likely                            C．ready                      D．sure

50．A．focus                      B．gather                     C．reach                      D．spread

51．A．However                B．Furthermore            C．Therefore                D．Finally

52．A．recognizing             B．watching                 C．noticing                  D．counting

53．A．enough                   B．full                        C．right                       D．proper

54．A．In fact                    B．As a result                     C．For example            D．Instead

55．A．in class                   B．with work               C．in mind                  D．of lessons