1编号:24537题型:解答题测试正确率:0%

如图1,在△ACB和△AED中,AC=BC,AE=DE,∠ACB=∠AED=90°,点E在AB上,F是线段BD的中点,连接CE,FE.(1)请你探究线段CE与FE之间的数量关系;(2)将图1中的△AED绕点A顺时针旋转,使△AED的一边AE恰好与△ACB的边AC在同一条直线上(如图2),连接BD,取BD的中点F,问(1)中的结论是否仍然成立,并说明理由;(3)将图1中的△AED绕点A顺时针旋转任意的角度(如图3),连接BD,取BD的中点F,问(1)中的结论是否仍然成立,并说明理由.

2编号:24536题型:解答题测试正确率:0%

如图1,在正方形ABCD和正方形CGEF(CG>BC)中,点B,C,G在同一直线上,点M是AE的中点.(1)探究线段MD,MF的位置及数量关系,并证明.(2)将图1中的正方形CGEF绕点C顺时针旋转,使正方形CGEF的对角线CE恰好与正方形ABCD的边BC在同一条直线上,如图2,原问题中的其他条件不变,则(1)中得到的两个结论是否发生变化?写出你的猜想并加以证明.(3)若将图1中的正方形CGEF绕点C顺时针旋转任意角度,如图3,原问题中的其他条件不变,则(1)中得到的两个结论是否发生变化?写出你的猜想并加以证明.

3编号:24535题型:解答题测试正确率:0%

如图,已知等边三角形ABC中,点D,E,F分别为边AB,AC,BC的中点,M为直线BC上一动点,△DMN为等边三角形(点M的位置改变时,△DMN也随之整体移动).
(1)如图①,当点M在点B左侧时,请你判断EN与MF有怎样的数量关系?点F是否在直线NE上?写出结论并证明;
(2)如图②,当点M在BC上时,其它条件不变,(1)的结论中EN与MF的数量关系是否仍然成立?若成立,请利用图②证明;若不成立,请说明理由;
(3)若点M在点C右侧时,请你在图③中画出相应的图形,并判断(1)的结论中EN与MF的数量关系是否仍然成立?若成立,请利用图③证明;若不成立,请说明理由.

4编号:24534题型:解答题测试正确率:0%

(1)操作发现:如图1,在矩形ABCD中,E是BC的中点,将△ABE沿AE折叠后得到△AFE,点F在矩形ABCD内部,延长AF交CD于点G.猜想线段GF与GC有何数量关系,并证明你的结论.(2)类比探究:如图2,将(1)中的矩形ABCD改为平行四边形,其他条件不变,(1)中的结论是否仍然成立?请说明理由.

5编号:23773题型:解答题测试正确率:64.96%

补全对话
M: The summer vacation is coming. What are you going to do, Mary?
W: I’m going to have a trip.
M: 68                             
W: Hainan province.
M: 69                             
W: My parents and my brother.
M: 70                             
W: First we’ll fly to Haikou then take a bus to Sanya.
M: 71                             
W: About two weeks.
M: 72                             
W: Nearly ten thousand yuan.
M: That’s lots of money. Have a good trip!
W: Thank you very much!

6编号:23770题型:解答题测试正确率:65.68%

阅读理解
  Sixteen year-old Amy Martin is on holiday with her family in San Diego,California, in the United States. They’re staying at the Coronado Bay Resort Hotel. After lunch, Amy and her parents are going swimming in the hotel pool. The fourth member of their family, Martha, is going to take a surfing class. But here’s the unusual(不寻常的) thing: Martha is a dog.
  At the Coronado bay Resort, dogs and cats are special guests. For example, Martha stays in the same room with Amy and her parents. Martha also has her own bed. At the hotel, cooks make special meals for dogs and cats. And for fun, the animals can go surfing.
  There are many animal friendly hotels around the world. For example, at hotels in Italy and Mexico, there are dining rooms for dogs and cats where they can eat special food. At the Devon Hotel in the United Kingdom, dogs can exercise. Then they can relax in a pool for animals.
  Staying at these hotels costs extra money. It usually costs $200 more a night. But most hotel guests with pets are happy to pay. “Martha is a part of our family.” says Amy Martin. “When we travel, she comes with us.”
40.Who is Martha?
A.A dog.   B.A cat   C. Amy’s doll   D. An unusual person.
41.What is the passage about?
A.Unusual animals.  B. Holiday activities  C. Amy’s family  D. Animal-friendly hotels.
42.If you stay at the Devon Hotel,       .
A. you should pay extra  B. you’ll only pay $ 200 a night  C. you’ll only pay for your pet  D. your pet can stay for free
43.Which of the following information can be found in this passage?
①Animals have their own beds at the Coronado Bay Resort Hotel.
②Cooks make special food for animals at the Coronado Bay Resort Hotel.
③Doctors will take care of animals if necessary at the Devon Hotel.
④Animals can do exercise at the Devon Hotel.
A. ①②③  B. ①②④  C. ②③④  D. ①③④

7编号:23769题型:解答题测试正确率:66.48%

阅读理解
  Childhood is a time of fun and games. Many people still remember when they were young; they often played games like hide-and-seek(捉迷藏) and chess. Playing teaches children how to get with others, and it also helps to exercise the mind and body. However, children today spend most of their time in front of the computer, playing video games.
  A recent survey found that in the US. Children between 8 and 12 spend at least 13 hours a week playing video games or “gaming”. Boys of this age spend even more time, almost 16 hours a week. Although some people will say that gaming is helpful, it brings many problems as well.
  One big problem is that kids who spend most of their time on games might have difficulty communicating with real people. They might have trouble sharing and resolving (解决) problems because they do not practice these skills when sitting alone at a computer.
  Another problem is about health. Game players usually sit for hours without doing any exercise. And they might not eat healthily. As a result, they might be out of shape.
  Next, game players might have trouble with their lesson s. Many of them spend more time playing games than working on their homework. In the end,           
Finally, it is always possible that the gamers become addicted (成瘾). Some people play four or five hours a day or even all day. This happened to a 28-year-old Korean man. He spent about 50 hours playing an online game without sleeping or eating well. He died while gaming!
  This is one example of the dangers of video gaming. It tells us that video gaming, like everything else, should not be done too much. A few hours a week should not hurt, but several hours a day just might be dangerous to your health.
36.Children of 8 to 12 in the US spend at least        hours a week playing video games.
A. 13        B. 16         C. 28        D. 50
37.How many problems about playing video games are mentioned(提到) in the passage?
A. Two.    B. Three.  C. Four.    D. Five.
38.Which of the following is the right sentence for the blank (空白处) in Paragraph 5?
A. they might become ill      B. they might lose their friends
C. they might stop playing games
D they might get lower grades at schoo l
39.What does the writer want to tell us by writing this passage?
A. Video gaming has quite a lot of advantages(好处).
B. Video gaming might be a dangerous thing.
C. Childhood is a time of fun and games.
D. Children should learn how to get along with others.

8编号:23768题型:解答题测试正确率:65.0%

阅读理解

31.Who is this postcard sent to?
A. Peter.  B. Gemma.  C. Kim.  D. Tom.
32.Which country does this postcard come from?
A. Canada.  B. China.  C. England.  D. Australia.
33.How did Tom go to Holiday Cove?
A. By plane.  B. By ship.  C. By car.  D. By train.
34.Why does Peter want to go to the aquarium instead of the crocodile farm?
A. Because he has visited it before.   B. Because he is afraid of crocodiles.
C. Because he is interested in dolphins. D. Because he has no tickets to the crocodile farm.
35.Where is Tom going on Friday?
A. Holiday Cove. B. Rest Harbour.  C. Mill Hill.  D. Golden Beach.

9编号:23767题型:解答题测试正确率:56.66%

完形填空
   Harry is a 21-year-old student from Canada. He 21         at the Heilongjiang University of Chinese Medicine now. He likes drinking tea and 22        Chinese qigong every day.
  “Knowledge about Chinese medicine is useful, 23         it is also very difficult to learn well. I must work harder.” Harry said, “I was 24          when I was a little boy. To be strong, I learnt qigong at the age of twelve.”
  Harry 25        to come to China after he finished his college in his own country. 26          September 5th of 2010, he began to learn Chinese in Beijing. Then he went to Heilongjiang for 27         on medicine and began his three-year college life in China.
  “I would like to 28          my country after finishing my study. I'll try my best to do something to let people know 29         about Chinese medicine and keep Canadians healthy.”
  More and more foreign students from other 30          like Harry have studied at the Heilongjiang University of Chinese Medicine since 1986. From then on, the university has built communication and cooperation (合作) with educational and research institutes (学院) on Chinese medicine in more than 30 countries.
21. A. works         B. studies     C. plays
22. A. practicing  B. watching   C. buying
23. A. and             B. but             C. or
24. A. healthy       B. strong       C. weak
25. A. decide        B. decides    C. decided
26. A. In                 B. On             C. At
27. A. education  B. business C. holidays
28. A. help            B. prevent     C. leave
29. A. none           B. all              C. more
30. A. classes     B. countries  C. schools

10编号:23632题型:解答题测试正确率:67.05%

如图,在梯形ABCD中,AD∥BC,E是BC的中点,AD=5,BC=12,CD=,∠C=45°,点P是BC边上一动点,设PB的长为x.
(1)当x的值为       时,以点P、A、D、E为顶点的四边形为直角梯形;
(2)当x的值为       时,以点P、A、D、E为顶点的四边形为平行四边形;
(3)点P在BC边上运动的过程中,以P、A、D、E为顶点的四边形能否构成菱形?试说明理由.