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用方框中所给单词或词组的适当形式填空,每词限用一次.politelyrecordscarelessstatesafelydisappeared56.Thepilotlandedtheplaneintheheavysnow.57.Mysonissothatheusuallymakessomemistakesin

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用方框中所给单词或词组的适当形式填空,每词限用一次.
politely   records   careless    state  safely  disappeared

56.The pilot landed the plane___ in the heavy snow.
57.My son is so___that he usually makes some mistakes in his homework.
58.Children should speak to old people___.
59.Alaska is the largest___ in America.
60.Five school___  were broken at the school sports meeting.
61.Dinosaurs___  from the Earth around 65million years ago.
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答案和解析
56.safely.所填单词应为副词,修饰动词landed.句意为:飞行员在大雪中驾驶飞机安全着陆.故填safely.
57.careless.所填单词应为形容词,说明主语的情况.本句涉及so+adj+that句型,so修饰形容词.句意为:我儿子很粗心,所以在做作业时经常出错.故填careless.
58.politely.所填单词应为副词,修饰动词speak.句意为:孩子们在对大人讲话时应该讲礼貌.故选politely.
59.state.所填单词应为名词,做表语.我们知道,Alaska (阿拉斯加州)是美国面积最大的州.州state.故填state.
60.records.所填单词应为名词,做谓语.句中透露出运动会信息,与之相关的是纪录 (record).句中有"5项"(five)的字眼,要用复数records.故填records.
61.disappeared.所填单词应为动词,做谓语.事情发生在过去(around 65million years ago),句意为:恐龙约在6500万年前从地球上灭绝.故填disappeared.