76．What’s the purpose of the text?(Please answer within 10 words．)

 For those choosing to fly，there’re several ways to avoid extra fees．First，if you’re driving to the airport，park in the long-term lot．While the short―term lot is usually closer it costs to check a bag．Most airlines are charging for every checked bag．If you can manage to pack everything into a carry―on．You’ll save at least$15．

 And when it comes to your actual destination，don’t assume that hotels are going to  cut back on fees simply because they’re desperate to draw customers．They won’t be adding or increasing fees，but                

The best defense against these fees is to read about the hotel’s rates online before you make a reservation. Be aware of extra fees and tip fees for everything．Some hotels even fix a sensor，charging guests for simply touching the items，let alone eating or drinking them．The main rule at hotels is to be aware of every small detail．When you examine your bill at the end of your stay，don’t be afraid to challenge a charge if you believe。it's unjust．

74．It can be concluded that German researchers will focus their future work firstly on            ．

    A．the material’s extensive use    B．the content of sulphur in arboform

    C．the production cost of arboform D．the qualities of liquid wood

 73．What’s the advantage of arboform over plastic?

    A．It is easier made from natural oil．

    B．It is more widely used in household．

    C．It is recyclable and friendly to environment．

    D．It contains no poisonous materials．

 72．The underlined word“alternative”in Paragraph 3 refers to            ．

    A．hgnin or arboform                 B．plastics

    C．mixture of several materials          D．soft tissues of wood

7 1．According to the passage，plastics              ．

    A．does harm to our society in some way

    B．helps to protect our environment in some way

    C．has been replaced by the newly discovered material

    D．helps US to reduce the use of petrol

    70．Which of the following would be the best title for the text?

    A．Canada―the Capital of the World in Arts

    B．A Canada Prize for Arts May Take Place by 2010

    C．The Nobel Prize in Arts will Come into Being

    D．David Pecaut Takes Charge of a Canada Prize for Arts

D

Plastic is one of the most important technological discoveries of the 20th century．How    ever．it may soon be replaced．The new development――liquid wood――can replace plastics    in a11 branches of modern―day industries．

Plastic as a material enjoys the biggest demand in the modern world，but it does have a number of drawbacks．First and foremost，plastic isn’t recyclable．Secondly，it contains toxins(毒物)helping develop cancerous diseases．Finally，it's made of oil and oil reserves aren’t endless．

The liquid wood technology is likely to replace plastic and providing mankind with new materials for many years ahead．Norbert Eisenfreich．a senior researcher at the Faunhofer Institute for Chemical Technology in Germany(ICT)，said that arboform，the new material，is made of lignin(木质素)，which can be obtained from soft tissues of wood．Once mixed with several other materials，it turns into solid and nontoxic alternative for plastics．

ICT team leader Emilia Regina Inone――Kauffmann said the wood-working industry separates wood into three basic components，including lignin．Lignin isn’t used for the production of paper．Specialists of ICT mixed lignin with several natural materials and thus invented the material which could be melted(熔化)and molded(铸型)．

When solid，arboform looks like plastic and possesses the qualities of polished wood．It can be used for the production of any items．Arboform is already used for the production of car parts which require extra strength．In addition，liquid wood can be recycled repeatedly．he material preserved all of its qualities even if it’s reprocessed ten times．

However，the new invention doesn’t enjoy an extensive use due to the high content of sulphur(硫)in it．German researchers are sure to reduce the amount of sulphur by 90 percent very soon to make arboform usable for ho，me needs．

    69．Towards the founding of the Canada Prize，David Pecaut is              ．

    A．unconcerned    B．doubtful    C．hopeless D．optimistic

    68．Those participating the final round of the new Canada Prize             

    A．needn’t experience semi―final rounds

    B.  will have their performances broadcast on the TV 

    C．need to have their performances made into films

    D．must accept the judge from Canadian experts