We’ve all heard about endangered animals. Creatures like the critically endangered black rhinoceros are famous. But what are the most endangered plants? They might not be as exciting or loveable as animals, but they are just as important to the ecosystem一and humanity relies on that ecosystem.Here are three of the most threatened plants today.（1） These plants occupy some of the most inaccessible, remote parts of our planet. They are threatened by habitat destruction, illegal collection, poaching, and competition with invading species.Attenborough’s pitcher plant is known only from the relatively inaccessible summit of Mount Victoria in Palawan in the Philippines. There are thought to be only a few hundred of them. （2）Attenborough’s pitcher plant is one of the biggest, with pitchers up to 30cm in height that can trap insects and rats. It was only discovered in 2007 when a team of botanists, tipped off by two Christian missionaries, scaled Mount Victoria. （3）The suicide palm is a gigantic palm found only in remote parts of north-west Madagascar. It lives for about 50 years, then flowers only once, and dies soon after. Suicide palms were discovered in 2005 by a cashew plantation manager during a family outing, and formally described in 2008. With trunks reaching 18m in height, and huge fan-leaves up to 5m across, the palms can be seen on Google Earth. （4）The coral tree, with its bright red flowers and spiny trunk, occurs only in the remote forests of south-east Tanzania. （5）However, the forest patch was cleared to grow biofuels, and the species was feared to have gone extinct again until it was re-rediscovered to 2011. There are now fewer than 50 mature individuals in the wild, in a single unprotected location.
A.Pitcher plants are carnivorous plants that trap animals in liquid-filled bowls called pitchers. B.They are almost all classed as critically endangered by the International Union for Conservation of Nature (IUCN). C.It was declared extinct in 1998，but rediscovered in 2001 in a small patch of forest. D.As a result, the population has dropped more than 95% over the last 20 years. E.There are only about 90 in the wild. F.It is named after British natural history broadcaster David Attenborough.
问题2：
A.Pitcher plants are carnivorous plants that trap animals in liquid-filled bowls called pitchers. B.They are almost all classed as critically endangered by the International Union for Conservation of Nature (IUCN). C.It was declared extinct in 1998，but rediscovered in 2001 in a small patch of forest. D.As a result, the population has dropped more than 95% over the last 20 years. E.There are only about 90 in the wild. F.It is named after British natural history broadcaster David Attenborough.
问题3：
A.Pitcher plants are carnivorous plants that trap animals in liquid-filled bowls called pitchers. B.They are almost all classed as critically endangered by the International Union for Conservation of Nature (IUCN). C.It was declared extinct in 1998，but rediscovered in 2001 in a small patch of forest. D.As a result, the population has dropped more than 95% over the last 20 years. E.There are only about 90 in the wild. F.It is named after British natural history broadcaster David Attenborough.
问题4：
A.Pitcher plants are carnivorous plants that trap animals in liquid-filled bowls called pitchers. B.They are almost all classed as critically endangered by the International Union for Conservation of Nature (IUCN). C.It was declared extinct in 1998，but rediscovered in 2001 in a small patch of forest. D.As a result, the population has dropped more than 95% over the last 20 years. E.There are only about 90 in the wild. F.It is named after British natural history broadcaster David Attenborough.
问题5：
A.Pitcher plants are carnivorous plants that trap animals in liquid-filled bowls called pitchers. B.They are almost all classed as critically endangered by the International Union for Conservation of Nature (IUCN). C.It was declared extinct in 1998，but rediscovered in 2001 in a small patch of forest. D.As a result, the population has dro
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On June 26, 2000, two scientific teams announce at the White House that they had deciphered virtually the entire human genome, a prodigious feat that involved determining the exact sequence of chemical units in human genetic material. An enthusiastic President Clinton predicted a revolution in “the diagnosis, prevention and treatment of most, if not all, human diseases”.Now, 10 years later, a sobering realization has set in. Decoding the genome has led to stunning advances in scientific knowledge and DNA-processing technologies but it has done relatively little to improve medical treatments or human health.To be fair, many scientists at the time were warning that it would be a long, slow slog to reap clinical benefits.And there have been some important advances, such as powerful new drugs for a few cancers and genetic tests that can predict whether people with breast cancer need chemotherapy. But the original hope that close study of the genome would identify mutations or variants that cause diseases like cancer, Alzheimer’ s and heart ailments—and generate treatments for them—has given way to realization that the causes of most diseases are enormously complex and not easily traced to a simple mutation or two.In the long run, it seems likely that the genomic revolution will pay off. But no one can be sure. Even if the genetic roots of some major diseases are identified, there is no guarantee that treatments can be found. The task facing science and industry in the coming decades is at least as challenging as the original deciphering of the human genome.1.Back in the year 2000, what was exciting about the deciphered genome?2.Clinically, according to the passage, the prophecy ten years later （ ）.3.From our disappointment we have to realize that （ ）.4.It can be concluded from the passage that （ ）.5.The writer's tone in the passage is （ ）.
A.Its claim at the turn of the new millennium. B.Its great potential of producing medical value. C.President Clinton’s predicting of a moral controversy. D.Its announcement for the first time at the White House.
问题2：
A.is provided to be fair enough B.is realized in clinical trails C.turns out to be a reality D.is far from realization
问题3：
A.most human diseases cannot be conquered B.the deciphering of the human genome was fruitless C.the cause of disease cannot be simply explained by a mutation or two D.many clinical harvests have nothing to do with the deciphered genome
问题4：
A.difficulties are hard to predict in doing science B.sometimes it is no use finding the genetic roots of diseases C.scientists are not supposed to make any predictions D.the clinical benefits of the genomic revolution will take time
问题5：
A.rational B.cynical C.doubtful D.skeptical
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