题干

半坡居民普遍使用____ 石器。

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同类题2

阅读下列材料:
材料一:咸丰十一年七月十八日,曾国藩在遵旨筹议总理衙门购买外国船炮时,再度申说了其“造炮制船”的主张,表示:“至恭亲王等奏请购买外洋船炮,则为今日救时之第一要务┅┅轮船之速,洋炮之远,在英、法则夸其所独有,在中华则震于所罕见。若能陆续购买,据为已物,在中华,则见惯而不惊,在英、法,亦渐失其所待。”
——《曾国藩全集》
材料二:1957年,苏联提出十五年赶上和超过美国,***也提出中国用十五年左右的时间,在主要工业产品产量方面赶上英国。但总路线公布以后,一再加快赶超速度,先改为七年赶上英国,后又改为三年赶上英国。为了完成钢产量的任务,全国掀起以大炼钢铁为中心的“大跃进”运动,提出工业“以钢为纲,全面跃进“的口号,几千万人上山炼钢,小高炉遍地开花。
材料三:在中国改革开放发展的成败得失和现代化化建设成就的影响这个问题上,国外学者大致有三种看法:①中国改革是成功的,有些人甚至提出了“中国奇迹论”;②中国改革不成功,有人甚至提出了“中国崩溃论”;③中国改革取得了成功,国力提升迅速,但缺乏透明度,甚至有人提出“中国威胁论”。
结合上述材料和所学知识回答:
(1)结合材料一和所学知识,指出曾国藩等洋务派开启中国近代化大门的动机是什么?为什么说洋务运动开启了中国近代化的大门?
(2)依据材料二并结合历史背景,指出当时中国现代化建设赶超英国的“大跃进”是否可行?为什么?结果如何?
(3)试以“中国奇迹论”或者驳斥“中国威胁论”的相关史实加以佐证。

同类题4

根据短文内容的理解,选择正确答案。   

The Boy Made It!

    One Sunday, Nicholas, a teenager, went skiing at Sugarloaf Mountain in Maine. In the early afternoon, when he was planning to go home, a fierce snowstorm swept into the area. Unable to see far, he accidentally turned off the path. Before he knew it, Nicholas was lost, all alone! He didn't have food, water, a phone, or other supplies. He was getting colder by the minute.

    Nicholas had no idea where he was. He tried not to panic. He thought about all the survival shows he had watched on TV. It was time to put the tips he had learned to use.

    He decided to stop skiing. There was a better chance of someone finding him if he stayed put. The first thing he did was to find shelter form the freezing wind and snow. If he didn't, his body temperature would get very low, which could quickly kill him. Using his skis, Nicholas built a snow cave. He gathered a huge mass of snow and dug out a hole in the middle. Then he piled branches on top of himself, like a blanket, to stay as warm as he could.

    By that evening, Nicholas was really hungry. He ate snow and drank water from a nearby stream so that his body wouldn't lose too much water. Not knowing how much longer he could last, Nicholas did the only thing he could — he huddled (蜷缩) in his cave and slept.

The next day, Nicholas went out to look for help, but he couldn't find anyone. He followed his tracks and returned to the snow cave, because without shelter, he could die that night. On Tuesday, Nicholas went out again to find help. He had walked for about a mile when a volunteer searcher found him. After two days stuck in the snow, Nicholas was saved.

    Nicholas might not have survived this snowstorm had it not been for TV. He had often watched Grylls' survival show Man vs. Wild. That's where he learned the tips that saved his life. In each episode(一期节目) of Man vs. Wild, Grylls is abandoned in a wild area and has to find his way out.

    When Grylls heard about Nicholas' amazing deeds, he was super impressed that Nicholas had made it since he knew better than anyone how hard Nicholas had to work to stay alive.