【正文】 s development during pregnancy, it is more likely to be affected in a male and the hemisphere more likely to be involved is the left. The brain may bee less lateralised and this in turn could result in lefthandedness and the development of certain superior skills that have their origins in the left hemisphere such as logic, rationality and abstraction. It should be no surprise then that among mathematicians and architects, lefthanders tend to be more mon and there are more lefthanded males than females. The results of this research may be some consolation to lefthanders who have for centuries lived in a world designed to suit righthanded people. However, what is alarming, according to Mr. Charles Moore, a writer and journalist, is the way the word `right39。s 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 rightsided language, Lefthanders, however,do not show the reverse pattern but instead a majority also Some 30 per cent have right hemisphere language. Dr Brinkman, a brain researcher at the Australian National University in Canberra, has suggested that evolution of speech went with righthanded preference. According to Brinkman, as the brain evolved, one side became specialised for fine control of movement (necessary for producing speech) and along with this evolution came righthand preference. According to Brinkman, most lefthanders have left hemisphere dominance but also some 中國最大的管理資源中心 (大量免費(fèi)資源共享 ) 第 16 頁 共 21 頁 capacity in the right hemisphere. She has observed that if a lefthanded person is braindamaged in the left hemisphere, the recovery of speech is quite often better and this is explained by the fact that lefthanders have a more bilateral speech her studies of macaque monkeys, Brinkman has noticed that primates (monkeys) seem to learn a hand preference from their mother in the first year of life but this could be one hand or the other. In humans, however, the specialisation in function of the two hemispheres results in anatomical differences。s education system is equal to any in the world in the opinion of most educationists. Reading Passage 1 below. Right and lefthandedness 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, 中國最大的管理資源中心 (大量免費(fèi)資源共享 ) 第 14 頁 共 21 頁 as psychologists call it. Yet about 90 per cent of every human population that has ever lived appears to have been righthanded. Professor Bryan Turner at Deakin University has studied the research literature on lefthandedness and found that handedness goes with sidedness. So nine out of ten people are righthanded and eight are rightfooted. 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. It39。higher education confers on the poor, who invariably lly, although there is agreement that learning can cause stress, Gatsby39。 a positive response to the exhortation by a former Prime Minister, Bob Hawke, for australia to bee the `clever country39。. media has often criticised the Inter because it is dangerous. 10. The latest technological revolution will change the way humans municate. 中國最大的管理資源中心 (大量免費(fèi)資源共享 ) 第 7 頁 共 21 頁 Practice 4 The Australian political scene is dominated by two major parties that have quite different political agendas. However, the policies of the Australian Labor Party and the Liberal Party have bee much more difficult to tell apart in recent years. In fact, it would be true to say that both parties consist of conservative, moderate and radical elements, and therefore the general public is often perplexed about which party to vote for. Noheless, it is usual to find that an Australian will lean towards supporting one of these two parties and remain faithful to that party for life. The Labor Party was formed early in the twentieth century to safeguard the interests of the mon working man and to give the trade unions political representation in Parliament. The Party has always had strong connections with the unions, and supports the concept of a welfare society in which people who are less fortunate than others are financially, and otherwise, assisted in their quest for a more equitable slice of the economic pie. The problem is that such socialist political agendas are extremely expensiv