【文章內(nèi)容簡(jiǎn)介】 from the energy of the sun45．Which of the following statements is supported by the passage ? A．1700 scientists attended the conference . B．A quarter of American businessmen were present at the conference . C．Foreign policymakers accounted for a quarter . D．Threequarters of the representatives were from the .46．Of the total supply twenty years later , biomass in the U. S. will be . A．5% B．20% C．10% D．15%47．Which of the following is not regarded as biomass energy ? A．Willow and seaweed . B．Wood and grains . C．Water and alcohol mixture .D．Crops and oil mixture .48．A suitable title for this passage would be . A．An energy Conference B．Approval of Biomass Energy C．BioEnergy for Automobiles D．Keys to Energy Crisis CInsurance (保險(xiǎn)) is the sharing of risks . Nearly everyone is exposed to risk of some sort . The house owner ,for example , knows that his property can be damaged by fire 。 the shipowner knows that his vessel may be lost at sea 。 the breadwinner knows that he may die at an early age and leave his family the poorer . On the other hand , not every house is damaged by fire nor every vessel lost at sea . If these persons each put a small sum into a pool , there will be enough to meet the needs of the few who do suffer loss . In other words , the losses of the few are met from the contributions of the many . This is the basis of insurance . Those who pay the contribution are known as “insure” and those who administer the pool of contributions as “insurers”.Not all risks lend themselves to being covered by insurance . Broadly speaking , the ordinary risks of business and speculation cannot be covered . The risk that buyers will not buy goods at the prices offered is not of a kind that can be statistically estimated （評(píng)估）—and risks can only be insured against if they can be so estimated .The legal basis of all insurance is the “policy” ! This is a printed form of contract on paper of the best quality . It states that in return for the regular payment by the insured of a named sum of money , called the “premium”, which is usually paid every year , the insurer will pay a sum of money or pensation for loss , if the risk or event insured against actually happens . The wording of policies , particularly in marine insurance , often seems very oldfashioned , but there is a sound reason for this . Over a large number of years many law cases have been brought to clear up the meanings of doubtful phrases in policies . The law courts , in their judgments , have given these phrases a definite and indisputable meaning , and to avoid future disputes the phrases have continued to be used in policies even when they have passed out of normal use in speech .49．According to this passage , insurance is possible because . A．everyone at some time suffers loss B．only a small proportion of the insured suffer loss C．nearly everyone suffers loss D．only insured people suffer loss 50．By “ the pool of contributions” the writer means . A．money paid by the insured B．money paid by the insurers C．the cost of administering insurance D．the mount of each premium 51．Oldfashioned wording is sometimes used in insurance because . A．insurance is oldfashioned B．insurance has existed for a long time C．it enables ordinary people to understand it D．the meaning of such wording has been agreed upon 52．The writer of this passage seems to think that insurance is . A．a(chǎn) form of gambling B．a(chǎn) way of making money quickly C．oldfashioned D．useful and necessary DFrom good reading we can get pleasure , panionship , experience and instruction . A good book may absorb our attention so pletely that for the time being we forget our surroundings and even ourselves . Reading good books is one of the greatest pleasures in life . It increases our contentment when we are cheerful , and lessens our trouble when we are sad . Whatever may be our main purpose in reading , our contact with good books should never fail to give us enjoyment and satisfaction .With a good book in our hands we need never be lonely . Whether the characters portrayed are taken from real life or purely imaginary , they may bee our panions and friends . In the pages of books we can walk with the wise and the good of all lands and all times . The people we meet in books may delight us either because they resemble (像) human friends whom we hold dear or because they present unfamiliar types whom we are glad to wele as new acquaintances (相識(shí)) . Our human friends sometimes may bore us , but the friends we make in books need never weary us with their pany . By turning the page we can dismiss without any fear of hurting their