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一、语法填空 (2010年广州一模)阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。 When very small dinosaur bones were found in a Germany mine people thought they were from baby dinosaurs.__1__ scientist Martin Sander's work shows that they were probably fully __2__ (grow) and belong to the smallest giant dinosaur species ever found. Growth marks on dinosaur bones are similar __3__ growth rings on trees.The rings are far apart while the animal is young and growing quickly.__4__ get closer as growth slows.“It is __5__ (exact) these tight ring marks that we found in the fossil (化石) bones，” says Sander.So the fossils must have been from adult animals. __6__ was this German dinosaur so much smaller than other giant dinosaurs，which grew up to 45 metres long and weighed as much as a thousand humans? 150 million years ago，most of Germany was underwater.Scientists think that __7__ water levels rose，there was less and less land and food available.The dinosaur __8__ (force) to adapt and evolved into a smaller animal __9__ (need) less space and food. Since 1998，scientists have dug up more than 1,000 dinosaur fossils in the mine.It is one of the few places in the world __10__ the bones and footprints of dinosaurs have been found together. | 
