You are going to read a newspaper article about human beings getting taller. Eight sentences have been removed from the article, Choose from the sentences A-I the one that fits each gap (14-20). There is one extra sentence which you do not need to use. There is an example at the beginning (0). It's true—We're all getting too big for our boots Chris Greener was fourteen when he told his careers teacher be wanted to join the navy when he left school. 'What do you want to be?' asked the teacher, looking the boy up and down. 'The flagpole un a ship?' The teacher had a pout because Chris, though still only fourteen, was already almost two metres tall. Every decade, the average height of people in Europe grows another centimetre. Every year, more and more truly big people are horn. continuingly, this does not mean humanity is producing a new super race. 【B1】__________ Only now are we losing the effects of generations of poor diet-with dramatic effects. 'We are only now beginning to fulfil our proper potential and are reaching the dimensions programmed by our bodies,' says paleontologist Professor Chris Stringer. 'We are becoming Cro-Magnons again- the people who lived on this planet 40,000 years ago.' For most of human history, our ancestors got their food from a wide variety of sources: women gathered herbs, fruits and berries, while men supplemented these with occasional kills of animals (a way of life still adopted by the world's few remaining tribes of hunter-gatherer). 【B2】__________ Then about 9,000 years ago, agriculture was invented with devastating consequences. Most of the planet's green places have been gradually taken over by farmers, with the result that just three carbohydrate- rich plants - wheat, rice and maize provide more than half of the calories consumed by the human race today. 【B3】__________ Over the centuries we have lived on soups, porridges and breads that have left us underfed and underdeveloped. In one study of skeletons of American Indians in Ohio, scientists discovered that when they began to grow corn, healthy hunter-gatherers were turned into sickly, underweight farmers. Tooth decay increased, as did diseases. Far from being one of the blessings of the New World, com was a public health disaster, according to some anthropologists. 【B4】__________ The fact that most people relying on this system are poorly nourished and stunted has only recently been tackled, even by the world's wealthier nations. Only in Europe, the US and Japan are diets again reflecting the richness of our attesters' diets. As a result, the average man in the US is now 179cm, in Holland 180cm, and in Japan 177cm. It is a welcome trend, though not without its own problems.【B5】__________A standard bed-length has remained at 190em since 1860, while the height of a door was fixed at 198cm in 1880. Even worse, leg-room in planes and trains seems to have shrank rather than grown, while clothes manufacturers are constantly having to revise their range of products. The question is: where will it all end? We cannot grow for ever. 【B6】__________But what is it? According to Robert Fugal, of Chicago University, it could be as much as 193cm -and we are likely to reach it some time this century. However, scientists add one note of qualification. Individuals may be growing taller because of improved nutrition, but as a species we are actually shrinking, although very tightly. During the last ice age, 10,000 years ago, members no the human race were slightly rounder and taller an evolution's response to the cold. (Large round bodies are best at keeping in heat.) 【B7】__________ And as the planet continues to heat up, we may shrink even further. In other words, the growth of human beings could be offset by global warming. A We must have some