摘要：填空1.= , 2.= ‐20, 3.=
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完形填空 （20分）
The famous British inventor George Stephenson was born in 1781 and died in 1848. one of his _21_ important inventions was the train. He _22_his first train when he was forty-four years old. When he was experimenting with the _23_ engine on the train, he met with _24_ from the government, newspapers and the gentlemen in the country. They said that the noise and the smoke would _25_ cows, horses and sheep, that the _26_ would hurtle(炸飞) or that the hot coals from it would _27_their houses. At that time, _28_ people believed what they said.
George Stephenson _29_ the people that the train could go on small _30_, could pull carriages _31_goods and passengers and there was _32_ to them. It was a very _33_ matter for him to _34_ them believe. However, after _35_, he was able to do it; and the first train that _36_ by Stephenson himself _37_ what he had said.
The first day _38_ the people along the way _39_ the noises of the train _40_ and saw it running quickly to them, they ran back home as quickly as they could and closed their doors tightly, for they thought it a genius. They did not dare to come out until it had passed.
【小题2】made B. bought C. introduced D. did
【小题10】 A.reads B. rivers C. steam D rails
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The famous British inventor George Stephenson was born in 1781 and died in 1848. one of his _21_ important inventions was the train. He _22_his first train when he was forty-four years old. When he was experimenting with the _23_ engine on the train, he met with _24_ from the government, newspapers and the gentlemen in the country. They said that the noise and the smoke would _25_ cows, horses and sheep, that the _26_ would hurtle(炸飞) or that the hot coals from it would _27_their houses. At that time, _28_ people believed what they said.
George Stephenson _29_ the people that the train could go on small _30_, could pull carriages _31_goods and passengers and there was _32_ to them. It was a very _33_ matter for him to _34_ them believe. However, after _35_, he was able to do it; and the first train that _36_ by Stephenson himself _37_ what he had said.
The first day _38_ the people along the way _39_ the noises of the train _40_ and saw it running quickly to them, they ran back home as quickly as they could and closed their doors tightly, for they thought it a genius. They did not dare to come out until it had passed.
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某区为了解全区2800名九年级学生英语口语考试成绩的情况，从中随机抽取了部分学生的成绩（满分24分，得分均为整数），制成下表：
（1）填空：
①本次抽样调查共抽取了 名学生；
②学生成绩的中位数落在 分数段；
③若用扇形统计图表示统计结果，则分数段为x≤16的人数所对应扇形的圆心角为 °；
（2）如果将21分以上（含21分）定为优秀，请估计该区九年级考生成绩为优秀的人数． 查看习题详情和答案>>
| 分数段（x分） | x≤16 | 17≤x≤18 | 19≤x≤20 | 21≤x≤22 | 23≤x≤24 |
| 人 数 | 10 | 15 | 35 | 112 | 128 |
①本次抽样调查共抽取了
②学生成绩的中位数落在
③若用扇形统计图表示统计结果，则分数段为x≤16的人数所对应扇形的圆心角为
（2）如果将21分以上（含21分）定为优秀，请估计该区九年级考生成绩为优秀的人数． 查看习题详情和答案>>
（6分）某区为了解全区2800名九年级学生英语口语考试成绩的情况，从中随机抽取了部分学生的成绩（满分24分，得分均为整数），制成下表：
| 分数段（x分） | x≤16 | 17≤x≤18 | 19≤x≤20 | 21≤x≤22 | 23≤x≤24 |
| 人 数 | 10 | 15 | 35 | 112 | 128 |
1.（1）填空：
①本次抽样调查共抽取了 ▲ 名学生；
②学生成绩的中位数落在 ▲ 分数段；
③若用扇形统计图表示统计结果，则分数段为x≤16的人数所对应扇形的圆心角为 ▲ °；
2.（2）如果将21分以上（含21分）定为优秀，请估计该区九年级考生成绩为优秀的人数．
查看习题详情和答案>>
（6分）某区为了解全区2800名九年级学生英语口语考试成绩的情况，从中随机抽取了部分学生的成绩（满分24分，得分均为整数），制成下表：
|
分数段（x分） |
x≤16 |
17≤x≤18 |
19≤x≤20 |
21≤x≤22 |
23≤x≤24 |
|
人 数 |
10 |
15 |
35 |
112 |
128 |
1.（1）填空：
①本次抽样调查共抽取了 ▲ 名学生；
②学生成绩的中位数落在 ▲ 分数段；
③若用扇形统计图表示统计结果，则分数段为x≤16的人数所对应扇形的圆心角为 ▲ °；
2.（2）如果将21分以上（含21分）定为优秀，请估计该区九年级考生成绩为优秀的人数．
查看习题详情和答案>>
（2013•雨花台区一模）某校九年级共有480名学生，现对该年级教师试卷讲评课中学生参与程度进行调查，其参与程度分为专注听讲、独立思考、积极交流、主动质疑四个等级．调查组随机抽查了若干名学生的参与情况，绘制了如下的统计表，请根据表中所给信息解答下列问题：
（1）填空：a=
（2）从上表的“频数”、“百分比”两列数据中选择一列，用适当的统计图表示；
（3）估计该校九年级学生在试卷讲评课中“独立思考”的约有多少人？
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| 参与程度 | 划记 | 频数 | 百分比 |
| 专注听讲 | … | a | 35% |
| 独立思考 | … | 36 | b |
| 积极交流 | … | 24 | 20% |
| 主动质疑 | … | 18 | 15% |
| 合计 | … | c | 100% |
42
42
，b=30%
30%
，c=120
120
_；（2）从上表的“频数”、“百分比”两列数据中选择一列，用适当的统计图表示；
（3）估计该校九年级学生在试卷讲评课中“独立思考”的约有多少人？