模拟题：雅思阅读经典模拟题（七）雅思考试

文章作者 100test 发表时间 2009:04:30 02:51:41
来源 100Test.Com百考试题网

TRUE／FALSE／NOT GIVEN
　　1.It is impossible these days to get a good job without a qualification from a respected institution. 2.Most people who upgrade their qualifications do so for the joy of learning. 3.In some jobs， the position you hold must be reapplied for. 4.Some parents spend extra on their childrens education because of the prestige attached to certain schools 5.According to the text， students who performed bally at school used to be accepted by their classmates. 6.Employees who do not undertake extra study may find their salary decreased by employers. 7.Australians appear to have responded to the call by a former Prime Minister to become better qualified. 8.Australias education system is equal to any in the world in the opinion of most educationists.
　　Reading Passage 1 below.
　　Right and left-handedness in humans
　　Why do humans， virtually alone among all animal species， display a distinct left or right handedness？ Not even our closest relatives among the apes possess such decided lateral asymmetry， as psychologists call it. Yet about 90 per cent of every human population that has ever lived appears to have been right-handed. Professor Bryan Turner at Deakin University has studied the research literature on left-handedness and found that handedness goes with sidedness. So nine out of ten people are right-handed and eight are right-footed. He noted that this distinctive asymmetry in the human population is itself systematic. Humans think in categories： black and white， up and down， left and right. Its a system of signs that enables us to categorise phenomena that are essentially ambiguous.
　　Research has shown that there is genetic or inherited element to handedness. But while left-handedness tends to run in families， neither left nor right handers will automatically produce off-spring with the same handedness； in fact about 6 per cent of children with two right-handed parents will be left-handed. However， among two left-handed parents， perhaps 40 per cent of the children will also be left-handed. With one right and one left-handed parent， 15 to 20 per cent of the offspring will be lefthanded. Even among identical twins who have exactly the same genes， one in six pairs will differ in their handedness.
　　What then makes people left-handed if it is not simply genetic？ Other factors must be at work and researchers have turned to the brain for clues. In the 1860s the French surgeon and anthropologist， Dr Paul Broca， made the remarkable finding that patients who had lost their powers of speech as a result of a stroke （a blood clot in the brain） had paralysis of the right half of their body. He noted that since the left hemisphere of the brain controls the right half of the body， and vice versa， the brain damage must have been in the brains left hemisphere， Psychologists now believe that among right handed people， probably 95 per cent have their language centre in the left hemisphere， while 5 per cent have right-sided language， Left-handers， however，do not show the reverse pattern but instead a majority also Some 30 per cent have right hemisphere language.