David, you _____play with the valuable bottle; you_______ break it.

A．won’t; can’t                         B．mustn’t; may

C．shouldn’t; must                        D．can’t; shouldn’t

 People Who Moved China, hosted by CCTV, honors the people _______ the valuable contributions should be remembered by every Chinese.

A.whose    B.of whom           C. that               D. of which

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

【小题1】The boss seems __________（有偏见）against the female employees wearing jewelry at work.
【小题2】 The sky was high and soft and light outside with the leaves moving ________（轻柔）in the breeze.
【小题3】 Aware of a thunderstorm on the way, the farmers made the valuable things ________（转移）to safe places.
【小题4】 The dictionary is edited in the order of ________（字母表）.
【小题5】Kent is a constant reminder of Pip’s shabby beginnings, so he made a decision to move from it to the bright lights of London without any             （同伴）.
【小题6】The two numbers sound so alike on the phone that it’s hard to d___________ one from the other.
【小题7】My husband has been a_______ to smoking for several years. It is really hard for him to stop now.
【小题8】 This boy is very g___________ --- he often buys things for other people.
【小题9】 After months of overworking, Jack was suffering from physical and m         exhaustion.
【小题10】 The ability to use a language can be a_________ only by the practice of using the language.

Everyday rubbish could provide a valuable source of energy thanks to a clever new invention. Smelly methane（沼气）gas expelled from landfill sites containing tones of rotting household waste could be used to produce a valuable energy resource. In Europe alone land fill tips produce 94 billion cubic meters of methane per year but currently only one percent of what could be a valuable source of energy is used, the rest is burnt off to prevent an explosive build up of gas.

Methane gas forms when organic matter breaks down and is drawn off from large rubbish tips by pipes sunk into the middle of the waste. Until now this process wasn’t possible on small sites because the pipe allowed oxygen to seep in and that stop the breakdown process.

Viktor Popov of the Wessex Institute of Technology has now developed a system to modify existing landfill sites by making them airtight while the methane is extracted from sunken wells. The site is covered by a special three-layered skin whose two outer layers are made of clay with a pressurized（加压的）layer of carbon dioxide gas in the middle. As the methane is sucked out through a central well it is replaced by carbon dioxide from the middle layer rather than oxygen, allowing the breakdown process to continue.

Unfortunately there are no plans to use the power of methane even though Popov claims his invention could provide a valuable source of energy over the next 20 years.

The passage mainly introduces ______ to us.

A．how to make methane     B．a new way to make use of rubbish 

C．the valuable things in rubbish  D．the amount of rubbish beig reused

From the passage we can see that _____.

A．in Europe 94 billion cubic meters of methane is produced every year

B．some of the waste will explode if it is not burnt off

C．99% of the rubbish has been burnt off in Europe

D．only a very small part of this kind of energy is used in Europe

In the passage the underlined word “that” refers to ______.

A．methane gas     B．the long pipe    C．oxygen     D．the rubbish

Which of the following statement is NOT true according to the passage?

A．Oxygen can cause the breakdown process to stop.

B．When the methane is sucked out, oxygen will enter from the middle layer.

C．Carbon dioxide doesn’t affect the breakdown process.

D．The new invention has not been put into use.