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1 （2020•金昌）如图①，正方形ABCD中，AC，BD相交于点O，E是OD的中点．动点P从点E出发，沿着E→O→B→A的路径以每秒1个单位长度的速度运动到点A，在此过程中线段AP的长度y随着运动时间x的函数关系如图②所示，则AB的长为（　　）
2021-01-26
2 （2020•金昌）要使分式有意义，x需满足的条件是．
2021-01-26
3 （2020•金昌）如果盈利100元记作+100元，那么亏损50元记作元．
2021-01-26
4 （2020•金昌）如图所示的木制活动衣帽架是由三个全等的菱形构成，根据实际需要可以调节AE间的距离．若AE间的距离调节到60cm，菱形的边长AB＝20cm，则∠DAB的度数是（　　）
2021-01-26
5 （2020•金昌）下列几何体中，其俯视图与主视图完全相同的是（　　）
2021-01-26
6 （2020•金昌）如图，点M，N分别在正方形ABCD的边BC，CD上，且∠MAN＝45°．把△ADN绕点A顺时针旋转90°得到△ABE．
2021-01-26
7 （2020•金昌）2019年甘肃在国际知名旅游指南《孤独星球》亚洲最佳旅游地排名第一．截至2020年1月，甘肃省已有五家国家5A级旅游景区，分别为A：嘉峪关文物景区；B：平凉崆峒山风景名胜区；C：天水麦积山景区；D：敦煌鸣沙山月牙泉景区；E：张掖七彩丹霞景区．张帆同学与父母计划在暑假期间从中选择部分景区游玩．
2021-01-26
8 （2020•金昌）习近平总书记于2019年8月在兰州考察时说“黄河之滨也很美”．兰州是古丝绸之路商贸重镇，也是黄河唯一穿城而过的省会城市，被称为“黄河之都”．近年来，在市政府的积极治理下，兰州的空气质量得到极大改善，“兰州蓝”成为兰州市民引以为豪的城市名片．如图是根据兰州市环境保护局公布的2013～2019年各年的全年空气质量优良天数绘制的折线统计图． 请结合统计图解答下列问题：
2021-01-26
9 （2020•金昌）如图，在平面直角坐标系中，抛物线y＝ax2+bx﹣2交x轴于A，B两点，交y轴于点C，且OA＝2OC＝8OB．点P是第三象限内抛物线上的一动点．
2021-01-26
10 （2020•金昌）图①是甘肃省博物馆的镇馆之宝﹣﹣铜奔马，又称“马踏飞燕”，于1969年10月出土于武威市的雷台汉墓，1983年10月被国家旅游局确定为中国旅游标志．在很多旅游城市的广场上都有“马踏飞燕”雕塑．某学习小组把测量本城市广场的“马踏飞燕”雕塑（图②）最高点离地面的高度作为一次课题活动，同学们制定了测量方案，并完成了实地测量，测得结果如下表： 课题 测量“马踏飞燕“雕塑最高点离地面的高度 测量示意图 如图，雕塑的最高点B到地面的高度为BA，在测点C用仪器测得点B的仰角为α，前进一段距离到达测点E，再用该仪器测得点B的仰角为β，且点A，B，C，D，E，F均在同一竖直平面内，点A，C，E在同一条直线上． 测量数据 α的度数 β的度数 CE的长度 仪器CD（EF）的高度 　 31° 42° 5米 1.5米 请你根据上表中的测量数据，帮助该小组求出“马踏飞燕”雕塑最高点离地面的高度（结果保留一位小数）．（参考数据：sin31°≈0.52，cos31°≈0.86，tan31°≈0.60，sin42°≈0.67，cos42°≈0.74，tan42°≈0.90）
2021-01-26
11 （2020•金昌）通过课本上对函数的学习，我们积累了一定的经验．下表是一个函数的自变量x与函数值y的部分对应值，请你借鉴以往学习函数的经验，探究下列问题： x … 0 1 2 3 4 5 … y … 6 3 2 1.5 1.2 1 …
2021-01-26
12 （2020•金昌）如图，⊙O是△ABC的外接圆，其切线AE与直径BD的延长线相交于点E，且AE＝AB．
2021-01-26
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1 -What do you like to do after school?      —I like playing_______ chess with my father.
2017-03-10
2 Miss Wang often __________ us __________ our math.
2017-03-10
3 名著阅读demo课
2018-06-27
4 People once went hungry. A rich man who made bread and cakes sent for twenty of the __1__ children in the town, and told them to take a loaf（条）of bread from a __2__ every day till the hard days passed. The hunger children came together __3__ , and argued for the bread, because each wished to have the largest one. Finally they went away without even thanking the good gentleman. But Gretchen, a poorly-dressed little girl, did not argue or __4__ with the rest, but remained standing quietly far away from them. __5__ the bad-mannered girls left, she took the smallest bread, which alone was left in the basket, kissed the gentleman’s hand, and went home. The next day the children were as bad-mannered as before, and poor, shy Gretchen __6__ a loaf hardly the size of the one she got the first day. When she came home, her mother cut the loaf open. Many new shining pieces of __7__ fell out of it. Her mother was very surprised and worried, and said, “Take the money back to the good gentleman at once, for it must have got into the dough（生面团） __8__ mistake. Be quick, Gretchen! Be quick!” But when the little girl gave the rich man her mother’s __9__ , he said, “No, no, my child, it was no mistake. I had the silver pieces put into the smallest loaf to give you. Always be as satisfied, quiet, and __10__ as you now are. Go home now, and tell your mother that the money is your own.”
2017-08-21
5 1.知道如何有礼貌的要求帮助是重要的。（ask for） 2.昨天那则好消息使我们都高兴。（please） 3.他可能是科学家。（maybe） 4.我过去常常害羞。（used to） 5.一星期前，我向我同学借了一本书。（borrow…from…）
2017-08-21
6 下列各组运算中，结果为负数的是（ ）
2017-01-04
7 Write a review of the following story in about 90 words. The review has to include the following points: 1. The name of your review. 2. The idea(s) of your review. 3. The reason(s) for your idea(s). 4. Something you decide after you consider all the information in the story. “ Cock-a-doodle-doo!” cried the cock（公鸡）. He stood in the farm-yard and cried aloud, so that all people might hear him. “Cock-a-diidke-doo! How useful I am, for I always get up first. And I cry about as soon as the sun rises to make all people in the house wake.” “Cluck! Cluck! Cluck!”cried the hen from the yard. She was walking about with three pretty little chickens, and trying to find some food for them. “Cluck! Cluck! Cluck! I’m more useful than you. Almost every day I lay a nice fresh egg for my master’s （男主人）breakfast. Then think how useful I am to my mistress（女主人）. How many nice things does she make with my eggs for the children? She could not get on well without eggs.”
2017-08-21
8 As we know, there are differences between Western culture and Chinese culture. . Let’s look at some words about animals and plants. Most expressions in Chinese about the dog, for example, “a homeless dog”, “a mad dog”, “a running dog” and “a dog catching a mouse”, have bad meanings. . In English, people use the dog to describe good actions. For example, “you are a lucky dog” means you are a lucky person. And “every dog has its day” means each person has good luck sometimes. TO describe a person’s serious illness, they say “sick as a dog”. The word “dog-tired” means very tired. . But in Western culture, “cat” is often used to describe a woman who is unkind. There are many other examples of how “cat” is used differently as well. . People think the rose stands for love, peace, courage and friendship. And the rose is the national flower of England, America and many other countries. . We can learn about many differences in cultures by comparing how some words are used.
2017-08-21
9 Today, the (popular) of basketball has risen around the world, with many young people dreaming becoming famous players. In China, you (see) people playing basketball now and then in parks, schools and even (factory). Basketball has not only become a popular sport to play, but it has become a popular sport to watch. Although America’s NBA games are (famous) in the world, the CBA games are becoming more popular in China. number of the foreign players, including Chinese players, in the NBA has increased. There (be) also more and more foreign players in the CBA. Many young people look up to these basketball heroes and want to become like (they). These stars encourage young people (work) hard to achieve their dreams.
2017-08-21
10 1.Where are（狮子）from? 2.I have no problem（爬）the mountains, which is not too high. 3.Of the two boys, who do you think is more （仔细）? 4.I just hid behind my father and never （说）anything. 5.My life has （变化）a lot in the past few years.
2017-08-21
11 下边的宣传语中有四个错别字，把它们找出来并改正。 改成 改成 改成 改成
2017-07-28
12 Last year, I went to Beijing Qizhi Special Education School for community service（社区服务）.Before we took the bus, my friend asked me a question, “Why are you here?” I did not know how to answer the question. The school was not far from my school, but it looked like it was in a different world. A group of children were waiting for us. A boy walked toward me. He held my hands and pulled me to the ground. I kissed the earth and tasted nature. I could not understand what he was doing at first, then I was very angry. Though I was very angry, I controlled my anger. A teacher stopped this awkward（尴尬的）silence when she shouted at the boy. “What are you doing right here, right now?” she said. “You will never see your mom again if you keep doing this. Now, say sorry!” “Sorry,” he cried fearfully and nervously. I said nothing, but I realized something about this child. After lunch I asked the teacher for information about the child’s parents. She said that the child was very different from other students because of an illness. His family could not afford to treat him. He needed the kindness of his family, but they had abandoned him. So he depended on the support from the teachers and community service workers like us. I suddenly realized I could answer the question my friend asked me at the beginning of the day. Community service workers help others and make everyone feel better. There are so many people in the world that need help. Playing with lonely children may not make a big difference. But it can light a corner in the children’s hearts, making them know they are loved by people.
2017-08-21