9B Unit1单元测试卷含答案

9B Unit1测试卷

姓名班级得分

第I 卷（选择题共60分）

一、听力（共20分）

第一部分听对话回答问题（计10分）

本部分共有10道小题，每小题你将听到一段对话，每段对话听两遍。在听每段对话前，你将有5秒钟的时间阅读题目；听完后，你还有5秒钟的时间选择你认为最合适的备选答案。在听到“嘀”的信号后，进入下一小题。

( ) 1. What are they talking about?

A. B. C.

( ) 2. Which place wo n’t the boy go to today?

A. B. C.

( ) 3. What are they talking about?

A. B. C.

( ) 4. What is the boy doing?

A. B. C.

( ) 5. What does the woman say Mr Zhang can do in France?

A.Talk with the local people.

B.Learn French.

C.Teach French.

( ) 6. Why is Millie going to visit Hutongs in Beijing?

A.Because she wants to live in a Hutong.

B.Because she wants to learn more about Beijing.

C.Because Hutongs are very famous in China. (

) 7. Why is the woman moving house?

A.She needs a quiet place.

B.The new house is cheaper.

C.She wants to live next to a singer.

( ) 8. What does the man like?

A. Thailand.

B. Travelling.

C. Spending holidays.

( ) 9. What are they talking about?

A. Weather.

B. Seasons.

C. The rain.

( ) 10. Where is George’s company?

A. In America.

B. In Japan.

C. In China.

第二部分听对话和短文回答问题（计10分）

你将听到一段对话和两篇短文，各听两遍。听每段对话或短文前，你将有时间阅读相关小题，每小题5秒钟；听完后，每小题你仍有5秒钟时间选择你认为最合适的备选答案。

听一段对话，回答第11–12小题。答题完毕，请等待“嘀”的信号，进入第一篇短文。

( ) 11. What is the man reading?

A. A magazine.

B. A Chinese book.

C. A newspaper.

( ) 12. Where are they going at the weekend?

A. Beijing Theatre.

B. Beihai Park.

C. Beihai Cinema.

听第一篇短文，回答第13–15小题。请根据短文内容，选择正确答案，完成信息记录表。答题完毕，请等待“嘀”的信号，进入下一篇短文。

( ) 13. A. animal B. plant C. bird

( ) 14. A. warm B. hot C. cool

( ) 15. A. expensive B. comfortable C. cheap

听第二篇短文，回答第16–20小题。

( ) 16. Who rang the doorbell of Mr White’s house?

A. Mr Black.

B. Mrs Black.

C. A young man.

( ) 17. Mr White didn’t go downstairs because .

A.he didn’t want to meet Mrs Black

B.his wife was downstairs

C.he wa sn’t feeling well

( ) 18. Why didn’t Mrs White answer Mr White at once?

A.Because she didn’t hear what her husband said.

B.Because she didn’t think that Mrs Black was foolish.

C. Because she needed time to find a good answer.

( ) 19. Where did Mrs White talk with Mrs Black?

A. In her bedroom.

B. In the living room.

C. Beside the window.

( ) 20. What do you think of Mrs White?

A. Honest.

B. A bit foolish.

C. Clever.

二、单项选择（共15分，每小题1分）

( ) 21. It was very , but I was very happy because I got to the top of the mountain at last with my friends.

A. tired

B. tiring

C. interested

D. interesting

( ) 22. The teacher came in, our exam papers in hand.

A. with

B. of

C. for

D. under

( ) 23. Tom, go to bed earlier. Tomorrow we’ll have a long way .

A. to go

B. go

C. went

D. gone

( ) 24. you have known about it, I needn’t tell you about it again.

A. Before

B. Unless

C. Since

D. Though ( ) 25. We each other when he lived here. But he has moved to another city.

A. used to meet

B. have met

C. are meeting

D. has met ( ) 26. Next to me , who was about seventy years old.

A. an old man sat

B. did an old man sit

C. sat an old man

D. was an old man sitting

( ) 27. Jack told me you bought a new mobile phone. May I have a look at ?

A. one

B. the one

C. him

D. it

( ) 28. It’s very kind you to give me so much help.

A. for

B. of

C. about

D. with

( ) 29. It was amazing I saw a film star when I did some shopping in a supermarket.

A. when

B. how

C. where

D. that

( ) 30. Henry often helped his classmates, so he in the class meeting yesterday.

A. was praised

B. is praised

C. praised

D. praises ( ) 31. —we take a boat trip along the river?

—Good idea. The landscape on both sides of the river is beautiful.

A. Must

B. Shall

C. Need

D. Will

( ) 32. —We are planning to go to the park on Sunday. ?

—I’m planning to visit the Science Museum.

A. Why

B. Is that all right

C. What about you

D. Aren’t we ( ) 33. This book was written by Mark is different from the one you read yesterday.

A. what

B. where

C. who

D. that

( ) 34. Don’t you think necessary to go there by taxi?

A. it

B. this

C. us

D. you

( ) 35. Do you know ?

A. that Mount Tai is

B. that is Mount Tai

C. where is Mount Tai

D. where Mount Tai is

三、完形填空（共10分，每小题1分）

Alice and her best friend Judy have n’t talked to each other for a few days. Last Saturday, Alice asked Judy to help with her maths homework, but Judy refused. Alice was very

36 and decided not to talk to her any more.

Alice is walking home from school when she sees a cool boy 37 the violin happily by the road. The music sounds so nice that she ca n’t help 38 to listen to it. 39 Alice doesn’t know what music it is, it makes her feel better. After the boy finishes playing, Alice walks over to him and says, “Thank you 40 your beautiful music. It gets me out of the really bad mood.” Then she takes out some 41 and gives it to him. To her surprise, the boy asks her to take the money back. He explains that he i sn’t making money by playing the violin.

He just wants to 42 others. He hopes that the wonderful music can make people feel relaxed and happy. That’s why he plays it by the road. What a 43 boy he is! Then Alice tells him about her problem.

The boy says, “You should learn to smile even if you are in difficulty. Listening to music is helpful. So why not listen to music as 44 as possible? Believe in your friend! She has her reasons.

Believe in 45 ! Everything will go well!”

Hearing these words, Alice goes home with a smile. She believes she can make it. (

) 36. A. worried B. angry C. happy D. tired ( ) 37. A. carrying B. selling C. buying D. playing

( ) 38. A. stop B. stopping C. to stopping D. /

( ) 39. A. Because B. When C. Though D. Whether

( ) 40. A. for B. with C. from D. except

( ) 41. A. music B. money C. food D. work

( ) 42. A. have B. leave C. give D. help

( ) 43. A. tall B. rich C. kind D. safe

( ) 44. A. often B. quickly C. soon D. loudly

( ) 45. A. myself B. herself C. yourself D. himself

四、阅读理解（共15分，每小题1分）

阅读下面短文，从短文后所给各题的四个选项（A、B、C和D）中，选出最佳选项。

A

To write a good news story, you have to make sure it is correct, relevant (相关的) and fresh.

For a start, all the information in a story must be correct. Not only the spelling and grammar, but also the facts. Any mistake that appears in a story can get a newspaper into trouble. For example, if a newspaper said that Yang Liwei is the first man to go into space, it would be wrong.

He isn’t the first. The newspaper would probably lose lots of readers because of that mistake.

A news story must be not only correct, but also relevant to its readers. People are mostly

interested in news that happens near them. That is why you care more about what happens at your school than at American schools. It is also why the local newspapers in Beijing don’t talk much about news in Shanghai or Hong Kong.

Finally, news must always be fresh. When you pick up your evening newspaper, you want to read about news that happens that day. You don’t want to read about news from last week!

So, now you know what makes a good news story. Have a good look at our newspaper and see if it is full of good news. You can try writing a news story for our newspaper like a real

reporter.

( ) 46. The author tells us that main factors (因素) make a good news story.

A. two

B. three

C. four

D. five

( ) 47. According to Paragraph 2, the correct information in a story includes .

A. translation and facts

B. spelling and pronunciation

C. spelling, grammar and facts

D. what the readers think about it ( ) 48. According to the author, newspapers in Henan should talk much about news in .

A. Henan

B. Hong Kong

C. Shanghai

D. Beijing ( ) 49. Which of the following is true?

A.A false report ca n’t get a newspaper into trouble.

B.A lot of people like reading news from the last week.

C.The passage doesn’t tell us who was the first man in space.

D.People are mostly interested in news that happens far away from them. (

) 50. The passage mainly talks about .

A. how to be a good reporter

B. where to find interesting news

C. how to choose a good newspaper

D. how to write a good news story

B

At East China University of Science and Technology, students will get a coupon (优惠券) if they eat up their food. Students can collect coupons and exchange them for small gifts, such as books, magazines, mobile phone covers and hand warmers.

“It’s been such a surprise,” said Liang Zhaoyun, 19, a student at the university in Shanghai. “It has given us one more motivation to finish our food.”

The measure is part of a national “eat-up” campaign (行动) which is organized by students to deal with food waste on campus (校园).

Why on campus? Because according to a report by Xinhua News Agency, students waste twice as much food as the national average (平均).

The campaign on campus food waste is receiving attention across the country.

“The aim of the campaign is to encourage students not only to finish their food but also to choose a more environment-friendly and healthy lifestyle,” said Tao Siliang, secretary of the Youth League Committee at Shanghai University.

But some school food is poorly prepared, so students do not like to finish it all. Some schools have taken notice of this and they are taking measures to improve it. “I’m glad that we’v e reduced food waste since the ‘eat-up’ campaign began. But if we call on students to waste less food, we should also improve the service and food standard on camp us.” said Tao.

( ) 51. From Paragraph 1, we know that the students will get a coupon .

A. when they eat school food

B. after they exchange gifts

C. if they finish all their food

D. if they collect the waste

( ) 52. The underlined word “motivation” in Paragraph 2 means “” in Chinese.

A. 动力

B. 机会

C. 试验

D. 条件

( ) 53. The “eat-up” campaign is carried out on campus because .

A. students get a good education

B. schools offer small gifts

C. students waste too much food

D. school food is more delicious ( ) 54. The purpose of the campaign is mainly to .

A.improve the school food standard

B.encourage a greener and healthier lifestyle

C.catch people’s attention

D.further improve the service in universities

( ) 55. The best title for this passage may be “”.

A. Enjoy your food

B. Reduce waste on campus

C. Meals in universities

D. ‘Eat-up’ campaign on campus

C

China is a nation of etiquette (礼仪). Chinese people are among the most hospitable (好客的) peoples in the world. If foreigners visit a Chinese family, they would be surprised at the warmth that they would receive as guests.

When you visit a Chinese family, the host usually makes tea for you. Then he will serve you snacks like biscuits or candy. Someone in the family will also chat with you, never letting you feel lonely.

At the same time, other family members will prepare a meal for you. Chinese people treat their guests with a big meal. They always present more food than the guest can eat. At

table, guests are supposed to start eating first. Perhaps one of the things that surprises a Western guest most is that the Chinese host likes to pick up food for visitors, which won’t happen at Western tables. The Chinese family go out of their way to make you feel at home. As you are done eating, the host usually says, “It seems that you didn’t eat much. Please have more.”

Being warm and hospitable has long been an important part of Chinese culture and tradition. As Confucius (孔子) said thousands of years ago:

To meet friends from afar

How happy we are!

( ) 56. Which of the following is true according to the passage?

A.Chinese people are more hospitable than the other peoples.

B.Foreigners would be surprised when eating Chinese food.

C.Chinese people like having meals as guests with foreigners.

D.Foreigners will be treated warmly when visiting a Chinese family. (

) 57. When foreigners visit a Chinese family, they will feel .

A. at home

B. lonely

C. tired

D. at a loss

( ) 58. Why are guests supposed to start eating first?

A.Because they are hungrier than the host.

B.Because it’s one of the Chinese table manners.

C.Because the host is busy preparing the meal.

D.Because it’s one of the Western table manners.

( ) 59. What does the underlined phrase “go out of their way” mean in Paragraph 3?

A. Get in their way.

B. Rush out of their house.

C. Have no way.

D. Do their best.

( ) 60. What does the passage mainly talk about?

A.What Confucius said thousands of years ago.

B.What foreigners should do in a Chinese family.

C.Chinese people are warm and hospitable.

D.The differences between Chinese table manners and Western table manners.

苏教版英语九年级下册第一单元单元测试9B Unit1(C卷)含答案

苏教版英语九年级下册第一单元单元测试9B Unit1（C卷） 一、单项填空 1. He can hardly stay awake because he is so tired,________ ? A. does he B. isn’t he C. can’t he D. can he 2.When I was young，I _______ in the country. A. used to live B. was used to live C. used to living D. was used to living 3. Kunming is a beautiful city _______ the southwest of China. A. on B. in C. to D. at 4. Guilin is famous _______ its natural landscapes. A. for B. as C. with D. in 5. I hope _______ to my birthday party next Sunday. A. your come B. you to come C. you can come D. you came 6. I am writing to you _______ I’m afraid to talk about it face to face. A. because B. though C. until D. unless 7. She _______ down because she had a headache. A. lay B. lied C. lies D. lie 8. Tony gets up _______ early _______ he can be the first one to get to his classroom. A. so; that B. such; that C. too; to D. enough; to 9. There are _______ things in your room. Stop buying anything until you can clean up your room. A. so many B. less C. too much D. so much 10. You have to be _______ and wait until I finish my work. A. patient B. strict C. honest D. active 11. Now teenagers are very busy with their schoolwork and they have _______ time to do exercise. A. few B. little C. a few D. a little 12. Read it aloud _______ the class can hear you. A. so that B. if C. when D. although 13.—I really hope to keep in touch with Lily. —Sorry. I don’t know ________. A. what her name is B. what her job is C. what her number is D. when she left 14.Rick has learned a lot about Chinese culture________he came to China. A. before B. when C. until D. since 15. He _______ every Saturday morning _______ in an animal hospital. A. spends; working B. spends; to work C. pays; working D. pays; to work 二、完形填空 Have you ever been to Hong Kong? When you travel in Hong Kong, you must 1 of the traffic rules, because they are different from those of the interior （内地）of China, and the traffic keeps to 2 . Before 3 the street, you must look to the right and then to the left. If the traffic lights turn 4 , the traffic must stop, and people can cross the zebra line. If the traffic lights turn 5 , the traffic can go, but people 6 cross the road. In the morning and in the evening, when people go to or come from 7 , the streets are very busy. The traffic is 8 . When you go somewhere by bus in Hong Kong, you must be careful, 9 .Always remember the traffic keeps to the left. Have a look first, or you may go to the wrong way. In Hong Kong, there are a lot of big buses 10 two floors. You may sit on the second floor. From there you can watch the city very well.

人教A版高中数学必修一第一章《集合》单元测试卷(无答案)

必修一第一章《集合》单元测试卷 一、选择题：（共12小题，每小题5分，合计60分） 1.方程组? ??-=-=+13y x y x ， 的解集不可表示为（ ） A.()?????????????-=-=+13,y x y x y x B.()?? ? ??????????==21,y x y x C.{1，2} D.{（1，2）} 2.若A ={0,2,4,6},B ={0,3,6,9},则A∩B=（ ） A ．{0} B ．{6} C ．{0,6} D ．{0,3,6} 3.已知集合A ={x |-3≤x ＜3},B ={ x |2＜x ≤5}，则A ∪B ＝（ ） A ．{ x |2＜x ＜3} B ．{ x |-3≤x ≤5} C ．{ x |-3＜x ＜5} D ．{ x |-3＜x ≤5} 4.设集合U ＝{1,2,3,4,5,6,7}，M ＝{1,2,4,7}，则 U M ＝（ ） A ．U B ．{1,3,5} C ．{3,5,6} D ．{2,4,6} 5.已知I ＝{0,1,2,3,4,5,6,7,8}，M ＝{1,2,4,5}，N ＝{0,3,5,7}，则()I M N ＝（ ） A.{6,8} B.{5,7} C.{4,6,7} D.{1,3,5,6,8} 6.已知集合{} 2 0,,33A m m m =-+且1A ∈，则实数m 的值为（ ） A.2 B.1 C ．1或2 D.0，1，2均可 7若{1,2,3}? A ?{1,2,3,4,5}，则集合A 的个数为（ ） A ．2 B ．3 C ．4 D ．5 8.已知集合A ＝{x |x 2－3x ＋2＝0，x ∈R}，B ＝{x |0＜x ＜5，x ∈N }，则满足条件A ?C ?B 的集合C 的个数为（ ） A.1 B.2 C.3 D.4 9.已知集合A={2,9},B={m 2,2}，若A=B,则实数m 的值为 （ ） A.3 B.－3 C.9 D.±3 10.已知集合P ={1,3}，则满足P ∪Q ={1,2,3,4}的集合Q 的个数是（ ） A.1 B.2 C.3 D.4 11．已知全集R U =，{}{} 1,0)3(-<=<+=x x M x x x N ，则图中阴影部分表示 的集合是（ ） A.{}13-<<-x x Ｂ.{ } 03<<-x x Ｃ.{}01<≤-x x Ｄ.{}3-

人教版九年级物理第十九章《生活用电》单元测试卷及答案

九年级物理第十九章《生活用电》单元测试卷 满分（90分） 题号一二三四五六总分得分 一、单选题（本大题共8小题，共24.0分） 1.我们国家规定的家庭电路的电压，安全电压，一节干电池电压分别是() A. 380V不高于36V1.5V B. 220V不高于36V1.5V C. 220V 36V 2V D. 110V不高于24V 2V 2.欢欢家的电路简化后如图所示，由该电路可知() A. a线是零线，b线是火线 B. 台灯和电视是串联在电路中的 C. 除开关外，整个电路都采用了并联的连接方法 D. 灯泡的开关应串接在灯泡的左侧导线中 3.如图所示为某家庭卫生间电路，闭合开关S，电灯正常发光，在三线插座上刚插上 电热水器的插头时，所有用电器都停止工作，拔出电热水器的插头后，检查发现零线上的熔丝断了。则下列分析合理的是() A. 闭合S，用测电笔检测三线插座左右的两个孔，氖管都发光 B. 闭合S，用测电笔检测三线插座左右的两个孔，氖管都不发光 C. 断开S，用测电笔检测三线插座左右的两个孔，氖管都发光 D. 断开S，用测电笔检测三线插座左右的两个孔，氖管都不发光 4.空气开关跳起后，手动使它复位，但又立即跳起，这不可能是()

A. 电路中有短路现象 B. 电路中出现了断路现象 C. 电路中总功率过大 D. 空气开关的额定电流过小 5.“珍爱生命，注意安全”是同学们日常生活中必须具备的意识。下列有关安全用电 的说法，不符合要求的是() A. 搬动用电器前要先断开电源开关 B. 雷雨天气尽快躲在大树底下避雨 C. 发现有人触电立即切断电源 D. 用电器达到使用寿命后及时更换 6.下列说法不正确的是() A. 使用电水壶、电饭锅时，金属外壳要接地 B. 通常情况下更换灯泡时要先断开灯泡所在支路的开关 C. 雷雨天气不要在树下避雨，以防雷击 D. 使用验电笔辨别零(火)线时，笔的前端金属体要与零(火)线相连，手不要接触 笔尾金属体 7.芸芸的妈妈从市场上买了一支廉价台灯，装上“220V25W”的灯泡后，将插头插 入家庭电路的插座后，室内电灯立刻全都熄灭，原因可能是() A. 灯泡的灯丝断了 B. 插头与插座接触不良 C. 台灯的灯座内断路 D. 台灯的插头内短路 8.欢欢家的电路简化后如图所示，由该电路可知 A. a线是零线，b线是火线 B. 台灯和电视是串联在电路中的 C. 电路中的用电器都是并联在电路中的 D. 三孔插座中上边的那个孔可以不接地 二、填空题（本大题共6小题，共15.0分） 9.教室里的各盏照明灯之间是______联的，开亮的灯越多，总 电阻______。如图所示，电工师傅站在干燥的木凳上检查教 室内的电路，他______(选填“能”或“不能”)发生触电事 故。

最新中职数学第一章集合单元测试题

第一章集合单元测试题 （时间100分钟，分数120分） 一、选择题（共10题，每题4分，共40分） 1、P=｛x/x ≤3｝,a=3,则下列选项正确的是 （ ） A. p a ? B.p a ? C.{}p a ? D.{}p a ? 2、判断下列语句是否构成集合 （ ） A 、自然数的全体 B 、与10接近的实数全体 C 、班里个子高的男生 D 、著名的科学家全体 3、下列表达式正确的是 （ ） A 、0∈? B、｛0｝=? C、?≠?｛0｝ D 、?{}0∈ 4、不等式01>-x 的整数解构成的集合可以表示为 （ ） A 、{}N x x x ∈>,1 B 、{}R x x x ∈>,1 C 、{}Q x x x ∈>,1 D 、{}1>x x 5、已知集合M={}1,x ，N={}2,y ，且M=N ，则y x += （ ） A 、3 B 、2 C 、1 D 、不能确定 6、设集合A {} ,2,32=≤=a x x 则 （ ） A 、≠?a A B 、a A ? B 、C 、{}A a ∈ D 、{}a ≠?A 7、“92=X ”是“3=x ”的 （ ） A 、充分不必要条件 B 、必要不充分条件 C 、充要条件 D 、既不充分也不必要条件 8、设集合{}{}7,6,5=>=N x x M ,则下列关系正确的是 （ ） A 、M N ∈ B 、N M ∈ C 、M N = D 、M N ? 9、已知集合{}{ }5,3,1,3,2,1,0==N M ,N M P ?=,则P 的子集共有 （ ） A 、2个 B 、4个 C 、6个 D 、8个 10、如果p 是q 的充分条件，s 是q 的必要条件，那么 （ ） A 、p 是s 的充分条件 B 、s 是p 的充分条件 C 、q 是p 的充分条件 D 、p 是s 的必要条件 二、填空题（共5题，共20分） 11、在ABC ?中，“∠B=∠C ”是AB=AC 的＿＿＿＿＿＿＿条件（填“充分不必要”“必要不充分”“充要”或“既不充分也不必要”） 12、已知集合{ } a a a -2 ,2，则实数a 的取值范围是＿＿＿＿＿ 13、已知集合{}{} ,03,4≤+=≥=x x B x x A 则?R(B A )=＿＿＿＿ 14、已知集合{}{ }5,3,1,3,2,1,0==N M ,N M P ?=,则P 的子集共有＿＿＿＿ 15、设集合{}a M ,5,3,2=，{ }b N ,4,3,1=，若{}3,2,1=N M ,则a-b=＿＿＿＿ 三、解答题（共6题，共60分） 16、已知集合A={}5/>x x ，B={}2/

人教版九年级物理全一册 第19章 生活用电 单元测试卷

人教版九年级物理全一册第19章生活用电单元测试卷题号一二三四五六总分得分 一、单选题（本大题共8小题，共24分） 1.下列做法中属于节约用电的是() A. 白天总是用灯光代替自然光照明 B. 夏天，把空调温度尽量调低一些 C. 离开教室随手关灯 D. 用电水壶烧水时不盖盖子 2.以下操作不符合安全用电要求的是() A. 更换灯泡时要切断电源 B. 保险丝熔断后可用铜丝代替 C. 将开关接在用电器和火线之间 D. 有金属外壳的家用电器其外壳一定要接地 3.如图是某取暖器的工作电路图。为了安全起见，取暖器一般都要安装一个跌倒开关 S，使取暖器倾倒时整个电路断开。则跌倒开关S应安装在() A. a处 B. b处 C. c处 D. d处 4.关于家庭电路，下列说法中正确的是() A. 用电器电线绝缘皮破损了仍继续使用 B. 在家庭电路中可以不安装空气开关或保险丝 C. 家电维修时，要先断开开关 D. 家庭电路中总电流过大，是由于电路中用电器的实际功率过大引起的 5.关于安全用电，下列说法正确的是() A. 更换灯泡前应断开电源开关 B. 使用绝缘皮破损的电线供电 C. 在高压输电线附近放风筝 D. 用湿抹布擦发光的灯泡 6.在发生碰撞事故时，安全带起到的保护作用能达到90%.当系好安全带时，相当于 闭合开关，指示灯不亮：未系好安全带时，相当于断开关，指示灯发光。符合上述要求的电路图是()

A. B. C. D. 7.在家庭电路中，下列情况不会造成触电现象的是() A. 人站在地上，一只手接触火线 B. 人站在地上，两只手同时接触火线 C. 人站在地面上，两只手接触零线 D. 人站在绝缘凳上，一只手接触火线，一只手接触零线 8.如图所示是小英家的部分电路，闭合开关S(家中其他用 电器均处于断开状态)后灯泡L正常发光，一段时间后灯 泡L突然熄灭，他用试电笔分别测试了插座的两个孔， 发现试电笔都发光。断开开关S，再次用试电笔分别测试了插座的两个孔，他将观察到(假设故障只有一处)() A. 测试两孔时试电笔都发光 B. 测试两孔时试电笔都不发光 C. 只有测试右面的孔时试电笔才发光 D. 只有测试左面的孔时试电笔才发光 二、多选题（本大题共2小题，共6分） 9.随着人们生活水平的逐步提高，家用电器不断增多。在家庭电路中，下列说法错误 的是() A. 灯与控制它的开关是并联的，与插座是串联的 B. 使用测电笔时，不能用手接触到笔尾的金属体 C. 电路中电流过大的原因之一是使用的电器总功率过大 D. 增加大功率用电器时，只需换上足够粗的保险丝即可 10.在表演台上，某人声称具有特异功能--“不怕电”.他把灯泡接到家庭电路的两根电 线上，灯泡亮．取下灯泡后，他用双手同时抓住这两根电线芯，并让别人用测电笔触其肌肤，众人见氖管发光而瞠目结舌．对此，某班同学展开讨论后形成以下观点，其中正确的是() A. 这是伪科学的欺骗行为 B. 此人也许真有不导电的特异功能 C. 此人与大地之间一定有良好的绝缘 D. 他去抓那两根电线前，零线已被助手切断

2020年度人教版九年级上册物理第十九章《生活用电》单元测试卷

第十九章《生活用电》单元测试卷 一、单选题(共15小题) 1.小红家的家庭电路进户开关上安装着漏电保护器，上面写着下表中的一些数据，在以下几种说法中，正确的是() A．漏电电流大于30 mA，保护器会在0.1秒之内切断电源 B．漏电持续时间超过0.1秒时保护器才能动作 C．当漏电电流达到15 mA时就能起到可靠的保护作用 D．只有当进户电压大于220 V或用电电流大于20 A时，才能起保护作用 2.如图所示，根据家庭电路的接线方法(规则)可以肯定a、b中() A．a是火线 B．b是火线 C．a、b都是火线 D．a、b都是零线 3.在家庭电路中，从进户开始要顺次安装下列元器件再接用电器，其先后次序正确的是() A．电能表、保险装置、总开关 B．电能表、总开关、保险装置 C．保险装置、电能表、总开关 D．总开关、电能表、保险装置 4.如果高压线断了，落在地上，那么不要靠近，更不能用手去捡，应该派人看守，并赶快找电工处理，这是因为() A．靠近会造成跨步电压触电 B．高压线会把人吸过去 C．靠近会造成高压电弧触电 D．高压线会把人弹出去 5.家庭电路中电压是________，一节干电池电压()

A． 110 V 3 V B． 110 V 2 V C． 220 V 4.2 V D． 220 V 1.5 V 6.关于保险丝，下列说法正确的是() A．做保险丝的材料应该电阻较大熔点高 B．做保险丝的材料应该电阻较大熔点低 C．做保险丝的材料应该电阻较小熔点低 D．必要时找段铜丝代替 7.学习了家庭电路的知识后，小华与爸爸一起将书房电灯(L1)的开关断开，从开关内两个触点引出两根电线接在一个插座上，然后将台灯的插头插入插座，闭合台灯(L2)的开关，则() A．L1与L2均正常发光 B．L1与L2均能发光，但亮度比正常暗些 C．L1与L2均不能发光 D．L1与L2均能发光，但亮度比正常亮些 8.现要安装“220 V25 W”灯泡25只，应选择的保险丝规格是() A．熔断电流为3 A的保险丝 B．额定电流为3 A的保险丝 C．熔断电流为5 A的保险丝 D．额定电流为5 A的保险丝 9.在家庭电路中，下列情况不会造成触电现象的是() A．人站在地上，一只手接触火线 B．人站在地上，两只手同时接触火线 C．人站在地面上，两只手接触零线 D．人站在绝缘凳上，一只手接触火线，一只手接触零线 10.关于保险丝，下列说法正确的是() A．电路中有了保险丝就能起到保险作用 B．选用额定电流越小的保险丝，就越安全 C．选择适当规格的保险丝，才能够既不妨碍供电，又起到保险作用 D．当电路被保险装置切断时，不用检查电路，直接恢复供电，就可以了 11.用电安全是天大的事，在某地曾发生过这样一幕惨剧，某农户的鱼塘上空有高压线通过，一位钓鱼者抬杆取鱼时，钓鱼杆触及电线，钓鱼者当场触电身亡．下面说法不正确的是()

9B Unit1单元测试卷含答案

9B Unit1测试卷 姓名班级得分 第I卷（选择题共60分） 一、听力（共20分） 第一部分听对话回答问题（计10分） 本部分共有10道小题，每小题你将听到一段对话，每段对话听两遍。在听每段对话前，你将有5秒钟的时间阅读题目；听完后，你还有5秒钟的时间选择你认为最合适的备选答案。在听到“嘀”的信号后，进入下一小题。 ( ) 1. What are they talking about? A. B. C. ( ) 2. Which place wo n’t the boy go to today? A. B. C. ( ) 3. What are they talking about? A. B. C. ( ) 4. What is the boy doing? A. B. C. ( ) 5. What does the woman say Mr Zhang can do in France? A.Talk with the local people. B.Learn French. C.Teach French. ( ) 6. Why is Millie going to visit Hutongs in Beijing? A.Because she wants to live in a Hutong. B.Because she wants to learn more about Beijing. C.Because Hutongs are very famous in China. ( ) 7. Why is the woman moving house? A.She needs a quiet place. B.The new house is cheaper.

高中人教A版数学必修1单元测试：第一章 集合与函数概念(一)A卷 Word版含解析

高中同步创优单元测评 A 卷数学 班级：________姓名：________得分：________ 第一章集合与函数概念(一) (集合) 名师原创·基础卷] (时间：120分钟满分：150分) 第Ⅰ卷(选择题共60分) 一、选择题(本大题共12个小题，每小题5分，共60分，在每小题给出的四个选项中，只有一项是符合题目要求的) 1．如果A＝{x|x>－1}，那么() A．0?A B．{0}∈A C．?∈A D．{0}?A 2．满足条件{0,1}∪A＝{0,1}的所有集合A的个数是() A．1 B．2 C．3 D．4 3．设A＝{x|1

C ．M ≠N D ．N M 6．如图所示，U 是全集，A ，B 是U 的子集，则阴影部分所表示的集合是( ) A ．A ∩ B B ．A ∪B C ．B ∩?U A D ．A ∩?U B 7．设集合U ＝{1,2,3,4,5}，M ＝{1,2,3}，N ＝{2,5}，则M ∩(?U N )等于( ) A ．{2} B ．{2,3} C ．{3} D ．{1,3} 8．集合A ＝{0,2，a }，B ＝{1，a 2}．若A ∪B ＝{0,1,2,4,16}，则a 的值为( ) A ．0 B ．1 C ．2 D ．4 9．设集合S ＝{x |x >5或x <－1}，T ＝{x |a －1 10．定义集合运算：A *B ＝{z |z ＝xy ，x ∈A ，y ∈B }．设A ＝{1,2}，B ＝{0,2}，则集合A *B 的所有元素之和为( ) A ．0 B ．2 C ．3 D ．6 11．已知集合M ＝??????x ??? x ＝k 2＋14，k ∈Z ，N ＝???? ??x ??? x ＝k 4＋1 2，k ∈Z ， x 0∈M ，则x 0与N 的关系是( ) A ．x 0∈N B ．x 0?N

(完整word版)人教版九年级物理第十九章生活用电单元检测(含答案),推荐文档

人教版九年级物理第十九章生活用电单元检测（含答案） 一、选择题(本题共10小题,每题4分,共40分) 1.一种试电笔的构造如图所示,下列关于它的作用和使用描述正确的是（-） A.试电笔可用来测试物体是带正电还是带负电 B.试电笔通常也用来检查电气设备的外壳是否带电 C.使用时手指不能碰到金属笔卡 D.使用时人不会触电是因为试电笔氖管中氖气不会导电 2.图甲是小明家的插线板,他发现开关控制着指示灯和插孔,同时他又发现即使指示灯坏了,只要开关是闭合的插孔仍然有电。他据此画出了开关、指示灯(带保护电阻)、插孔与火线、零线的连接电路原理图(如图乙)。以下说法正确的是（-） A.图乙中的指示灯和保护电阻是并联关系 B.指示灯(带保护电阻)与插孔是并联关系 C.指示灯(带保护电阻)与开关是并联关系 D.图甲中插孔之间是串联关系 3.如图所示,是家庭电路的部分电路连接示意图,其中接线错误的是（-） A.三孔插座 B.两孔插座 C.开关 D.电灯 4.图是用电热水壶烧水的情景,下列说法正确的是（-）

A.乙图中标有“PE”的导线插头应该接甲图中标有“2”的插孔 B.使用了标有“PE"的导线,即使壶壳带电,人接触它也无触电危险 C.如果熔断器中的保险丝熔断,可以用铜丝或铁丝替代 D.在“高山”上烧水时,96℃就沸腾了,说明水的沸点随气压的升高而降低 5. 图 中 连 接 或 做 法符合安全用电原则的（-） 6.关于家庭电路和安全用电,下列说法正确的是（-） A所有家用电器的外壳都需要接地 B.家庭电路中各个用电器都是串联的 C.使用试电笔判断哪条导线是火线时,手要按住笔尾金属体 D.若空气开关“跳闸”,一定是电路中出现了短路 7.家里一盏电灯突然熄灭,用试电笔(又名“测电笔”)分别测试电路中的a、b、c、d四点如图只有测a点时氖管发光。若电路中只有一处故障,则故障可能是（-） A.进户零线断路 B.灯泡L断路 C开关S接触不良 D导线cd断路 8.如图所示,在接线柱A、B图间接入导线(其材料为普通铜丝),在接线柱C、D间接入熔丝,接通电源,灯泡正常发光,四熔丝不熔断;断开电源,在B、D间连上一根导线,再次接通电源时,灯不亮,熔丝熔断。以下判断错误的是（-） A导致熔丝熔断的原因是电路中电流过大 B.熔丝熔断时,熔丝中的电流大于AB间导线中的电流 C.熔丝熔断,但灯泡依然完好 D.用铜丝代替熔丝不符合安全用电的原则 9.如图是正常家庭电路的一部分。下列说法正确的是（-） A.导线B与大地之间的电压为220V B.试电笔先后插入插座的左右插孔,氖管都发光 C.电冰箱的插头插入三孔插座能使电冰箱的金属外壳接地 D.断开开关S后,站在地上的人接触a点或b点定不会触电

2020年人教版物理九年级全一册导第19单元《生活用电》单元测试卷带答案

2020年人教版物理九年级上学期第19单元《生活用电》单元测试卷带答案 一．选择题（共30小题） 1．现在一般标准住宅户内配电系统都使用了空气开关、漏电保护器、三线插座等设备，有一配电系统如图所示，以下各个设备的特征叙述正确的是（） A．电能表上可以直接读出应该交的电费 B．所选空气开关的断路电流应等于或略小于该电路允许通过的最大电流 C．漏电保护器用于当灯泡的灯丝烧断时，将电流导入大地 D．漏电保护器跳闸可能因为其安装的位置湿度过大 2．欢欢家的电路简化后如图所示，由该电路可知（） A．a 线是零线，b 线是火线 B．电能表是测量用电器总功率的 C．电路中的用电器都是并联在电路中的 D．三孔插座中上边的那个孔可以不接地

3．关于家庭电路，下列说法正确的是（） A．工作的用电器越多，电路的总电阻越大 B．使用测电笔时，手必须接触测电笔的笔尾金属体 C．家庭中的电能表是测量总电功率的仪表 D．洗衣机、电冰箱等家用电器使用三角插头是为了节约用电4．如图所示的家庭电路，连接方式正确的是（） A． B． C．

D． 5．如图所示是某同学设计的家庭电路，电灯开关已断开，下列说法正确的是（） A．灯泡和两孔插座是串联的 B．开关和三孔插座的连接都是错误的 C．试电笔接触M点，氖管不发光 D．试电笔插入两孔插座的左孔，氖管发光 6．下图所示的四个家庭电路，符合家庭电路连接要求的是（） A． B．

C． D． 7．某同学家有一盏正在发光的电灯，断开开关后电灯熄灭，但用试电笔去测试灯头上的两根电线时，氖管都发光，其原因可能是（） A．开关接在了火线上B．开关接在了零线上 C．灯头中有短路现象D．开关中有短路现象 8．电工师傅常用一只额定电压为220V的灯泡L0（检验灯泡）取代保险丝来检查新安装的照明电路中每个支路的情况，如图所示。当S闭合后，再分别闭合S1、S2、S3（每次只能闭合其中之一）时，下列说法错误的是（） A．只闭合S、S1时，L0不亮，说明该支路断路 B．只闭合S、S2时，L0正常发光，说明该支路短路 C．只闭合S，S3时，L0发光呈暗红色，说明该支路正常 D．只闭合S、S1时，若L0正常发光，用试电笔检测A点氖管发光

9B.Unit1单元测试

五河县九年级英语下册单元清 Unit 1测试题 学校_____ 班级______ 姓名______ 考号______ 第一部分听力（共五大题，满分30分） I. 关键词语选择（共5小题；每小题1分，满分5分） 你将听到五个句子。请在每小题所给的A、B、C三个选项中选出一个你所听到的单词或短语。每个句子读两遍。 ( )1. A. skirt B. snake C. smoke ( )2. A. regret B. repeat C. report ( )3. A. weak B. wet C. west ( )4. A. deaf B. dead C. deep ( )5. A. give away B. give out C. give up II. 短对话理解（共10小题；每小题1分，满分10分） 你将听到十段对话，每段对话后有一个小题。请在每小题所给的A、B、C三个选项中选出一个最佳选项。每段对话读两遍。 ( )6. Which is mentioned in the conversation? A. B. C. ( )7. What’s the boy’s favorite sport? A. B. C. ( )8. What’s the season when they talk? A. B. C. ( )9. How did Mary go to school yesterday?

A. B. C. ( )10. W hat does Tony usually do at the weekends? A. B. C. ( ) 11. What’s the date today? A. May 1st B. May 3rd C. May 5th ( )12. What does the man order? A.Some hamburgers and coffee B. Some fish and chips C. Some bread and chips ( )13. What’s the relationship between the two speakers? A. Husband and wife B. Student and teacher C. Manager and worker ( )14. Where are the two speakers? A. In a library B. In a cloth shop C. In a bookstore ( )15. What does the woman mean? A. She will help the man. B. She won’t help the man. C. She will do it by herself III. 长对话理解（共5小题；每小题1分，满分5分） 你将听到两段对话，每段对话后有几个小题。请在每小题所给的A、B、C三个选项中选出一个最佳选项。每段对话读两遍。 听下面一段对话，回答第16 至17小题。 ( )16. Who did Simon go to the Animal Center with last weekend? A. His parents B. His friends C. His classmates ( )17. What did Simon do there? A. He fed the animals. B. He took photos C. He visited the workers. 听下面一段对话，回答第18至20小题。 ( )18. When are they going to see the movie? A. This afternoon B. Tomorrow morning C. Tomorrow afternoon ( )19. How long will the movie be on? A. For three days. B. For a week C. For two weeks. ( )20. How much will they pay for two tickets online? A. 30 yuan B. 60 yuan C. 120 yuan IV. 短文理解（共5小题；每小题1分，满分5分） 你将听到一篇短文，短文后有五个问题。请根据短文内容，在每小题所给的A、B、C三个选项中选出一个最佳选项。短文读两遍。 ( )21. What did the old gentleman think of modern education?

第一章集合单元测试题

2009秋学期高一数学独立作业 班级______________ 姓名___________________ 一、填空题： 1. 已知全集U ={0，2，4，6，8，10}，集合A ={2，4，6}，B ＝{1}，则 U A ∪B ＝____________ 2. 下列关系中正确的有________________________ ①0∈{0}，② Φ {0}，③{0，1}?{（0，1）}，④{（a ，b ）}＝{（b ，a ）} 3．方程组? ??=-=+3242y x y x 的解集为 _________________________ （A ） {2，1} （B ） {1，2} （C ）{（2，1）} （D ）（2，1） 4．函数y =|x 2-6x |的单调增区间为__________________，单调减区间为__________________ 5．某学生从家里去学校上学，骑自行车一段时间，因自行车爆胎，后来推车步行，下图中横轴表示出发后的时间，纵轴表示该生离学校的距离，则较符合该学生走法的图是 6．已知f （x ）=?? ???<=π >+)0x (0)0x ()0x (1x ，则f [f （－2）]＝________________. 7．已知M={x| -2≤x ≤5}, N={x| a+1≤x ≤2a -1}，若M ?N ，则a ∈________________, 若M ?N ，则a ∈________________ 8．函数y=|x+1|+|x-2|的最小值为__________ 9．若函数y=2x 2 -ax-1在区间(-∞,1]上单调递减，则a 的取值范围是________________ 10． 二、解答题： 11、已知A ={1，2，x 2－5x ＋9}，B ={3，x 2＋ax ＋a }，如果A ={1，2，3}，2 ∈B ，求实数a 的值.

人教版九年级物理 全册 第十九章 生活用电 单元综合测试题(含答案)

第十九章生活用电单元综合测试题（含答案） 一．选择题（4*10=40分） 1.关于家庭电路中电器安装的说法错误的是( ) A. 开关应接在火线上 B. 螺丝口灯泡的螺旋套一定要接在零线上 C. 开关应和灯泡并联 D. 保险盒应接在火线上 2.某家庭电路的部分情况如图所示，下列说法正确的是 ( ) A．进户线分为火线和地线 B．电能表的标定电流为20 A C．空气开关有保险丝的功能 D．电能表与空气开关是并联的 3.下列关于家庭电路的说法正确的是() A.家庭电路中各用电器都是串联在电路中的 B.发现触电事故时,应首先切断电源再想办法 C.控制用电器的开关应接在该用电器和零线之间 D.当干路中电流过大时,漏电保护器就会自动切断电路 4.某家庭电路的部分电路如图所示,其中甲、乙两处分别装用电器和开关。对此电路,下列说法正确的是( ) A. 火线上的保险丝应该改装到零线上 B. 甲处应装用电器,乙处应装开关 C. 当用电器功率增大时,通过保险丝的电流就增大 D. 当保险丝熔断后,可以用铜丝代替 5.某家庭电路中的保险丝熔断后，换上新的保险丝又立即熔断， 则下列因素中不可能造成故障的是 ( ) A．电路中某处发生断路 B．电路中某处发生短路 C．电路中的用电器总功率过大 D．保险丝的额定电流过小 6.家庭电路中有时出现这样的现象,原来各用电器都在正常工作,当把手机充电器的插头插入插座时,家中所有的用电器都停止了工作,其原因可能是() A.这个插座的火线和零线原来就相接触形成了短路 B.插头插入这个插座时,导致火线和零线相接触形成了短路 C.插头与这个插座接触不良形成了断路 D.同时工作的用电器过多,导致干路电流过大,保险开关跳闸 7.下列关于安全用电的说法中正确的是() A. 有金属外壳的家用电器一般都使用两脚插头 B. 使用试电笔时,手必须接触笔尾的金属体 C. 照明电路中开关接在火线或零线上都可以 D. 增加大功率的用电器时,只需换上足够粗的保险丝即可 8.如图所示，以下操作不会发生触电事故的是 ( ) A．甲站在绝缘凳上同时接触火线和零线 B．乙站在绝缘凳上仅接触火线 C．丙站在地上仅接触火线 D．丁站在地上同时接触火线和零线 9.下列做法不符合安全用电原则的是() A.遇到有人触电,先切断电源 B.将洗衣机的金属外壳接地 C.及时更换破损的导线 D.用湿手插拔用电器插头 10.下列防止发生事故或处理事故的措施正确的是() A.发现高压线断头落地时,应立即将它捡起 B.当电器设备失火时,应选用泡沫灭火器 C.家庭电路中的熔丝熔断时,可换用不易熔断的铜丝或铁丝 D.若家中使用燃料天然气,燃气报警器应安装在燃气灶的上方 二．填空题（4*5=20分） 11. 家庭电路中的电冰箱、电视机、电灯等用电器的连接方式是联;用测电笔来辨别家庭电路的火线和零线时,手必须接触,当笔尖接触导线 时,若氖管发光,则该导线是线。 12.如图所示,是(填“高压”或“低压”)触电的两种形 式。其中甲图所示的是触电,乙图 是触电。 13.家庭电路中,开关和它所控制的电灯是联,为了防止因漏电而发生触电事故,有金属外壳的家用电器外壳一定要。 14.右图是常用的一个插线板。小华在使用中发现:插线板上的指示灯在开关断开时不发光,插孔不能提供工作电压;而在开关闭合时指示灯发光,插孔可以提 供电压。根据上述现象可知指示灯和开关是(选填 “串联”或“并联”)的。使用三脚插头和三孔插座,目的是将用 电器的金属外壳与相连,防止触电。

集合与函数概念单元测试题含答案

第一章集合与函数概念测试题 一：选择题 1、下列集合中与集合{21,}x x k k N +=+∈不相等的是（ ） A ．{23,}x x k k N =+∈ B ．{41,}x x k k N +=±∈ C ．{21,}x x k k N =+∈ D ．{23,3,}x x k k k Z =-≥∈ 2、图中阴影部分所表示的集合是（ ） ∩［C U (A ∪C)］ B.(A ∪B) ∪(B ∪C) C.(A ∪C)∩(C U B) D.［C U (A ∩C)］∪B 3、已知集合2{1}A y y x ==+，集合2{26}B x y x ==-+，则A B =（ ） A ．{(,)1,2}x y x y == B ．{13}x x ≤≤ C ．{13}x x -≤≤ D ．? 4、已知集合2{40}A x x =-=，集合{1}B x ax ==，若B A ?，则实数a 的值是（ ） A ．0 B ．12± C ．0或1 2 ± D ．0或12 5、已知集合{1,2,3,}A a =，2 {3,}B a =，则使得Φ=B A C U )(成立的a 的值的个数为（ ） A ．2 B ．3 C ．4 D ．5 6、设A 、B 为两个非空集合，定义{(,),}A B a b a A b B ⊕=∈∈，若{1,2,3}A =，{2,3,4}B =，则A B ⊕中的元素个数为 A ．3 B ．7 C ．9 D ．12 7、已知A 、B 两地相距150千米，某人开汽车以60千米/小时的速度从A 地到达B 地，在B 地停留1小时后再以50千米/小时的速度返回A 地，把汽车离开A 地的距离x 表示为时间t （小时）的函数表达式是 （ ） A ．x =60t B ．x =60t +5 C ．x =???>-≤≤)5.3(,50150)5.20(,60t t t t D ．x =? ????≤<--≤<≤≤) 5.65.3(),5.3(50150) 5.35.2(,150) 5.20(,60t t t t t 8、已知g (x )=1-2x, f [g (x )]=)0(12 2≠-x x x ,则f (21)等于 （ ） A ．1 B ．3 C ．15 D ．30 9、函数y=x x ++ -19 12 是（ ） A ．奇函数 B ．偶函数 C ．既是奇函数又是偶函数 D ．非奇非偶数