七年级下U6 Electricity
（B卷·提升能力）
【牛津（广州，深圳，沈阳）版】
学校：__________班级：__________姓名：_________ 考号：___________
温馨提示：
本试卷共分第Ⅰ卷和第Ⅱ卷两部分，第Ⅰ卷为选择题；第Ⅱ卷为非选择题；满分为100分，考试时间为100分钟。
第Ⅰ卷 选择题
1、 语法选择(共15小题，每小题1分，满分15分)
In the early 1800s, the first electric light was made. But there was no good way to get electricity into homes. Two men began working to develop ___1____ electric generator（发电机）. One was the famous Thomas Edison. _____2____was a young man ____3_____ Nikola Testa.
Testa was born in Croatia in 1856 and moved to America in 1884. He_____4____ Thomas Edison and worked with him in Edison’s company. Edison had developed a generator that made direct current-DC（直流电）. His generator already ____5_____light a small area of New York City. Testa helped Edison ___6____ his DC generator better. But he did not stay with Edison very long. Testa thought there was a better way of ____7_____electricity.
Nikola Testa knew more about electricity than almost anyone. Testa did not invent the AC generator. ___8___ he believed alternating current-AC（交流电）, was _____9____ way to power homes.
He went to work _____10____ a large electric company. He developed AC generators to power homes and businesses. Tesla was on his way to great_____11____.
Edison fought against Tesla’s AC generators because he was not happy. He told everyone that AC would kill people. It was true that AC was ____12______than DC. But DC had ___13_____own problems. It could not be sent far from the generator. AC, on the other hand, could be sent very far. Finally Nikola Tesla was a great ___14____, and _____15_____his inventions, now the whole world has electricity.
1. A. a B. an C. the D.\
2. A. others B. the other C. other D. another
3. A. name B. named C. names D. naming
4. A. join B. joins C. joined D. joining
5. A. may B. must C. should D. could
6. A. makes B. made C. make D. making
7. A. producing B. produce C. produced D. produces
8. A. and B. but C. or D. so
9. A. good B. better C. best D. the best
10. A. at B. on C. for D. to
11. A. success B. succeed C. successful D. successfully
12. A. dangerous B. much dangerous C. more dangerous D. the most dangerous
13. A. it B. it’s C. its D. its’
14. A. invent B. invention C. inventer D. inventor
15. A. because B. because of C. because for D. because to
【答案】BBBCD CABDC ACCDB
【解析】短文讲了在19世纪早期，第一个电灯被制造出来。详细地介绍了托马斯 爱迪生和尼古拉 泰斯塔对电的研究，及其尼古拉 泰斯塔的发明使全世界都有了电。
1.考查冠词语法。句意：两个人开始研制发电机。这里表示一类人或物用不定冠词。元音前面用an。答案选B
2.考查不定代词语法。句意：其中一位是著名的托马斯·爱迪生。另一个是一个名叫尼古拉·特斯塔的年轻人。一个。。。另一个。One。。。the other。答案选B
3.考查动词用法。句意：其中一位是著名的托马斯·爱迪生。另一个是一个名叫尼古拉·特斯塔的年轻人。Named名叫过去分词做定语。答案选B
4.考查时态用法。句意：他加入了托马斯爱迪生，并在爱迪生的公司里与他一起工作。叙述过去发生的事情用一般过去时态。答案选C
5.考查情态动词用法。句意：他的发电机已经可以照亮纽约市的一小部分地区。这里表示“能会”用情态动词could。答案选D
6.考查动词用法。句意：埃斯塔帮助爱迪生更好地开发了他的直流发电机。Help。。。do（to do）答案选C
7.考查动词用法。句意：泰斯塔认为有更好的发电方式。Of介词后面用动词Ving形式。答案选A
8.考查连词用法。句意：泰斯塔并没有发明交流发电机。但他相信交流电是给家庭供电的最好方式。前后句子是转折关系。答案选B
9.考查形容词用法。句意：但他相信交流电是给家庭供电的最好方式。Way是可数名词。A good/better way才正确。故答案选D
10.考查介词用法。句意：他去了一家大型电力公司工作.for表示“为”。答案选C
11.考查词语辨异用法。句意：特斯拉正在走向巨大的成功。Success名词。Succeed 动词 successful形容词。Successfully副词。这里用名词。答案选A
12.考查词形容词用法。句意：的确，交流比直流危险。这里用than用比较级。答案选C
13.考查代词用法。句意：但直流电也有自己的问题。Its它的。修饰名词。答案选C
14.考查词性辨异。句意：最后，尼古拉·特斯拉成为一位伟大的发明家。Inventor发明家。答案选D
15.考查词性辨异。句意：因为他的发明，现在全世界都有了电。Because of固定搭配。后面接短语。答案选B
二、完形填空 阅读短文，掌握大意，选出最佳选项。（共10小题，每小题1分，共10分。）
The Warrens are a common family. However, this common family has done something ___16___. A few years ago, they moved to the countryside and built a house which was powered (提供动力) by the wind and the sun!
Mr. Warren wanted his family to play a role in ___17___ the planet, so he read a lot about the electrical system. Then, he ___18___ to create electricity to power everything they needed for their daily lives.
The kids were ___19___ at first. “Will we still be able to watch TV What about the computer ” they asked. “Don’t worry at all,” said their father. “Just because we are going to create our own electricity doesn’t mean we have to live in the ___20___.”
“We are going to set up a wind generator (发电机),” explained Mrs. Warren. “Wind is a great way to __21___ electricity. It’s not only free but also clean. The wind doesn’t blow all the time, though. That’s ___22___ we need to store (储存) our power. Then, when there is no wind, we will still have power to run everything in our house.”
Mr. Warren added, “We are also going to collect ___23___ from the sun and turn it into electricity. So, when the wind blows, we have power. When the __24___ shines, we have power, too.”
It’s easy to see that the family really __25___ renewable energy. Now, they are living happily in their self-powered countryside home.
16．A．normal B．special C．similar D．private
17．A．saving B．breaking C．greeting D．examining
18．A．failed B．agreed C．decided D．refused
19．A．angry B．worried C．happy D．interested
20．A．spring B．moment C．past D．dark
21．A．shoot B．waste C．reduce D．produce
22．A．how B．why C．which D．where
23．A．scenes B．energy C．rubbish D．objects
24．A．star B．light C．sun D．moon
25．A．trusts in B．calls in C．shuts off D．cuts down
【答案】BACBD DBBCA
【解析】短文大意：本文是记叙文，讲述了沃伦一家自己动手利用风力和阳光发电，以实际行动拯救地球的故事。
16．句意：然而，这个普通的家庭做了一些特别的事情。
normal正常的；special特别的；similar相似的；private私有的。however然而，表语义转折；根据上文“The Warrens are a common family沃伦一家是一个普通的家庭”，可知这个普通的家庭做了一些不普通的事情，ACD三项不合句意，故选B。
17．句意：沃伦先生想让他的家人在拯救地球的行动中发挥作用，所以他读了很多关于电力系统的书。
saving拯救；breaking打破；greeting问候；examining检查。根据下文“so he read a lot about the electrical system所以他读了很多关于电力系统的书”，可知原因是他想让家人在拯救地球的行动中发挥作用，故选A。
18．句意：然后，他决定创造电力来供应他们日常生活所需的一切。
failed失败；agreed同意；decided决定；refused拒绝。then然后，表顺承；根据上下文可知，他做了“创造电力来供应他们日常生活所需的”决定，故选C。
19．句意：孩子们一开始很担心。
angry生气的；worried担心的；happy高兴的；interested有趣的。根据下文孩子的话“Will we still be able to watch TV What about the computer 我们还能看电视吗？那电脑呢”，可知孩子们很担心能不能继续看电视和用电脑，故选B。
20．句意：仅仅因为我们要自己发电，并不意味着我们必须生活在黑暗中。
spring春天；moment时刻；past过去/昔日；dark黑暗。本句是否定句，mean意味着；根据“doesn’t mean”和语境，可知ABC三项不合句意，故选D。
21．句意：风力发电是一种很好的发电方式。
shoot射击；waste浪费；reduce减少；produce生产。根据前文“he decided to create electricity to power everything they needed for their daily lives他决定创造电力来满足他们日常生活所需的一切”，结合本句，可知风力发电是一种很好的发电方式，produce符合句意，故选D。
22．句意：这就是为什么我们需要储存能量（的原因）。
how怎样，表方式；why为什么，表原因；which哪一个，表事物；where在哪里，表地点。根据句意结构，可知本句解释原因，和前句是因果关系，故选B。
23．句意：我们还将从太阳能中收集能量，并将其转化为电能。
scenes场景；energy能量；rubbish垃圾；objects物品。根据下文“turn it into electricity将其转化为电能”，可知是从太阳能中收集能量，故选B。
24．句意：当太阳照耀的时候，我们也有能量。
star星星；light光线；sun太阳；moon月亮。shine照耀；根据上文“We are also going to collect energy from the sun and turn it into electricity我们还将从太阳能中收集能量，并将其转化为电能”，可知当太阳照耀的时候，我们也有能量，故选C。
25．句意：容易看出，这家人真的相信可再生能源。
trusts in信任；calls in顺道走访；shuts off关闭；cuts down削减。根据最后“they are living happily in their self-powered countryside home他们幸福地生活在他们的自供电的乡村家庭”，结合前一段沃伦先生关于风能和太阳能的介绍，可知他们相信可再生能源，故选A。
三、阅读 （共分两节，满分45分）
第一节 阅读理解（共20小题；每小题2分，满分40分）
阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑
A
Let me tell you something very important: Never have water near you when you have something electric not far away! Last month, my family experienced a terrible thing.
My brother Tom had just received a new train set. We decided to build a little “world” for it with mountains, streetlights and even a lake. We found a large board that was big enough to hold the train. We spent over a week building the things with paper and cardboard.
When we finished all the things, we showed everyone our new train set. It was very wonderful. Now, it was time to turn it on. I flipped the switch and the train began to move. Everyone was excited.
I turned to look at Tom, and he looked strange. He was shaking. “Tom!” I shouted. He didn’t move, looking straight ahead. Suddenly, my dad realized what was happening. He reached quickly for the switch and turned off the train.
The water had leaked(漏) from the bag under the board and arrived where Tom was standing. One of our wires had fallen under the table and was touching it. We sent Tom to the hospital. And luckily Tom was fine. He told us that when the electricity was on, he could not move at all.
We learned a lesson that day. Keep water away from electricity! It’s too dangerous.
26．How long did it take them to build the little “world”
A．A month B．Over a month. C．More than a week. D．Less than a week.
27．The underlined word “flipped” in Paragraph 3 most probably means “________”.
A．起飞 B．按下（开关） C．计时 D．发电
28．The underlined word “it” in Paragraph 5 refers to ________
A．the board B．the water C．the bag D．the table
29．Which of the following is TRUE according to the passage
A．After finishing the train set, my dad turned it on.
B．There were mountains, bridges and a lake on the large board.
C．Tom couldn’t move at all when the electricity was on.
D．I found Tom was strange and then I turned off the switch quickly.
30．According to the passage, we should remember to ________
A．stay away from water B．have something electric near us
C．take good care of the young D．keep water away from electricity
【答案】CBBCD
【解析】文章主要讲述了作者的弟弟曾遭受的漏电经历，主要告诉我们：谨防漏电危险，让水远离电。
26．细节理解题。根据“We decided to build a little “world” for it with mountains…We spent over a week building the things with paper and cardboard.”可知，作者和弟弟花了一周多的时间去建造“小世界”。故选C。
27．词义猜测题。根据“Now, it was time to turn it on. I flipped the switch and the train began to move.”可知，该到打开的时候了，我……开关，火车开始移动了，所以这里应该指的是“按下开关”，单词“flipped”指的是“按下开关”，故选B。
28．词义猜测题。根据“The water had leaked(漏) from the bag under the board and arrived where Tom was standing. One of our wires had fallen under the table and was touching it.”可知，水从袋子里漏了出来并流到了汤姆站着的地方，一根电线掉在桌子底下，碰到了水，故划线部分it指代的是前文中的“流到汤姆脚下的水”。故选B。
29．推理判断题。根据“He told us that when the electricity was on, he could not move at all.”可知，当通电时汤姆无法动弹。故选C。
30．主旨大意题。根据第中“Never have water near you when you have something electric not far away!”及最后一段“We learned a lesson that day. Never mix electricity and water! It’s too dangerous.”可知，通过作者一家遭受的经历，我们应该记住要让水远离电。故选D。
B
Cars make our lives more convenient. But they can also be a problem, especially fossil fuel (化石燃料) cars, which are a major cause of air pollution.
To improve the environment, many countries are developing electric vehicles (EVs, 电动车). Among them, China is taking a leading role and has created the world’s largest EV market, according to the Wall Street Journal.
Last year, over 40 percent of the 753,000 EVs sold worldwide were sold in China, more than twice as many as the number sold in the United States, according to the International Energy Agency.
Chinese drivers are already big fans of EVs. Chinese auto companies, including BYD and BAIC (北汽集团), rank among the top in the world in EV sales.
“Charging (充电) an electric car is cheaper than filling up a fossil fuel car with gas,” said Wu Hao, who bought an electric car from BAIC this year.
However, there are still some problems. It can be hard to find charging stations (充电桩) and the cars can’t go far before needing to be recharged.
Some of these problems are being solved. In 2014, China had 31,000 charging stations, according to Xinhua. Now China has the world’s largest EV charging network, with more than 167,000 charging stations in total, according to the Economic Daily.
Developing EVs is one of many efforts China has made to reduce pressure on its environment after the government promised to stop increases in carbon dioxide emissions (二氧化碳排放量) by 2030. “As China goes, so will the world’s auto industry,” the Wall Street Journal said.
31. What do we know about electric vehicles
A. They are sold more than fossil fuel cars.
B. They are more convenient than fossil fuel cars.
C. They cause less pollution than fossil fuel cars.
D. They are safer than fossil fuel cars.
32. How many EVs were sold in China last year
A. More than 301,000.
B. More than 753,000.
C. More than 31,000.
D. more than 450,800.
33. What do we know about charging EVs
A. It is convenient to charge EVs.
B. People need to charge them near their home.
C. It costs less money than filling up a fossil fuel car.
D. Charging EVs takes too much time.
34. What do we know from the story
A. EVs can go far after they are charged.
B. More countries will encourage people to use EVs.
C. Fossil fuel cars will disappear in the future.
D. China should build a larger EV charging network.
35. The passage is mainly about
A. how to deal with air pollution
B. why EVs are so popular
C. the development of EVs in China
D. why China needs electric cars
【答案】CACBC
【解析】本文讲述中国电动汽车的发展。
31.C 推理判断题。电动汽车的发展其一目的是为了减少污染。But they can also be a problem, especially fossil fuel (化石燃料) cars, which are a major cause of air pollution. To improve the environment, many countries are developing electric vehicles (EVs, 电动车).可以推断C。
32.A细节理解题。 Last year, over 40 percent of the 753,000 EVs sold worldwide were sold in China。753,000*40%=301.2.可知答案A。
33. C细节理解题。“Charging (充电) an electric car is cheaper than filling up a fossil fuel car with gas,”故答案选C
34.B 推理判断题。“As China goes, so will the world’s auto industry,”可知电动汽车会鼓励在世界发展，像中国一样。
35.C 通读全文可知本文主要讲了 "中国电动汽车的发展"。
C
Until the late 1800s, most people went to bed soon after sunset. They used candles and oil for light. Amer ican inventor Thomas Edison changed the way people lived when he invented the first light club .The light bulb was just one of the more than 1000 inventions of this great inventor.
Thomas Alva Edison was born in 1847. He attended school for only three months, His mother taught him reading and writing at home.
In 1862 .Edison saved a boy from being run over by a train. The boy’s father operated a telegraph machine. In order to thank him, the father taught Edison how to operate the telegraph. Edison then made improvements to the telegraph. He earned money from his inventions.
In 1876 , Edison started the first research laboratory in New Jersey. He worked very hard. He lived in his laboratory and became rich because of his inventions. He married twice and had six children. But he worked so hard that he spent little time with his families.
Edison's greatest inventions included an improved telephone, photograph and electric battery. He is best remembered for inventing the long-lasting light bulb.
In the 1870s. many inventors were trying to make a light bulb. Edison tried hundreds of times, Finally he found a filament（灯丝） made of carbon. Edison's lamp was a great success. It burned for more than 40 hours.
36. When did Edison learn to operate the telegraph
A. In 1847. B. In 1862. C. In 1876. D. In 1867.
37.Edison started the first research laboratory in New Jersey______ .
A. at the age of 27 B. when he was 29 C. in his thirties D. after 1876
38.Where did Thomas Edison learn reading and writing
A. At school. B. At home. C. At the laboratory. D. In a factory.
39.Why did people like Edison
A. Because he made a lot of money. B. Because he improved the telegraph.
C. Because he invented the light bulb. D. Because he was a hard-working man.
40. According to the sixth paragraph, we know that________.
A. nobody else's bulb could burn for more than 40 hours except Edison’s
B. Edison succeeded in making a light bulb easily
C. the filament made of carbon was the worst
D. Edison was the only one who wanted to invent a light bulb
【答案】BBBCA
【解析】本文介绍爱迪生及他重要的发明电灯泡。
36.B细节理解题。从文中的三段In 1862 .Edison saved a boy from being run over by a train. The boy’s father operated a telegraph machine. In order to thank him, the father taught Edison how to operate the telegraph。可知答案选B。
37.B细节理解题。In 1876 , Edison started the first research laboratory in New Jersey.和Thomas Alva Edison was born in 1847.知答案选B。
38. B细节理解题。His mother taught him reading and writing at home.答案选B
39.C推断判断题。从He is best remembered for inventing the long-lasting light bulb.可知答案选C。
40. A推断判断题。最后一段。有很多人都想发明灯泡，故D选项正确，爱迪生发明碳灯丝并取得成功。故C错误。经过无数次实验才发明碳灯丝。故B错误。A正确。Edison's lamp was a great success. It burned for more than 40 hours.可以推理判断A正确。
D
Energy is everywhere. We use energy every day.
Electricity is a form of energy and this is what powers the TV, hairdryer, phone, fridge, electric toothbrush and more! Our growing need for energy is one of the problems facing the world today, because producing electricity also produces pollution.
Here are some simple ways to make a big difference when using electricity.
On or off Leaving televisions and computers on with the little red light showing still uses electricity, even though they might look like they’re turned off. To stop this you can turn them off.
Lights out! Turning lights off when you’re not in the room can save a lot of energy.
Fridge door closed. The fridge is an important part of the kitchen, because it keeps food fresh, cool and healthy! But it takes a lot of energy to keep cool, so try not to leave the fridge door open or put hot things inside.
Use the sun's energy. An increasing number of people are fitting solar panels（太阳能电池板） to their houses. They create electricity from sun-light, which can then be used to power our homes. Solar heating panels make hot water, reducing the need for electricity or gas.
41．The underlined word “powers” means “ ” in Chinese.
A．动力 B．权利 C．驱动 D．散发
42．What can save energy according to the passage
A．Turn the lights off when you’re not in the room.
B．Use gas to create electricity.
C．Leave the fridge door open or put hot things inside.
D．Leave televisions and computers on.
43．There are ways to save electricity in the passage.
A．three B．four C．five D．six
44．Which is NOT true according to the passage
A．We don't have any energy problem today.
B．The fridge can keep food fresh, cool and healthy.
C．When we produce electricity, we produce pollution, too.
D．Electricity from sunlight can be used to power our homes.
45．The passage mainly tells us .
A．electricity is a form of energy
B．how to create electricity from sunlight
C．how to use the fridge correctly
D．the different ways to save electricity
【答案】CABAD
【解析】本文叙述了电是我们的必需品，我们离不了电，但是我们今天仍然面临着能源问题，因此我们要节约用电，短文给出了四条节约用电的建议。
41．词义猜测题。根据the TV, hairdryer, phone, fridge, electric toothbrush and more后面的这些词都是名词，所以划线的应该是动词。理解上下文可知句意：电是一种能源，可以使电视、吹风机、手机、冰箱、电动牙刷以及更多的东西运转。因此power的意思是"使……运转"，驱动。根据Electricity is a form of energy可以推测这里划线的是“驱动”。故选C。
42．细节理解题。根据Turning lights off when you’re not in the room can save a lot of energy.可知，当不在房间里的时候请把灯关掉，这样省电，故选A。
43．细节理解题。根据On or off Lights out! Fridge door closed. Use the sun's energy.可知，提出了四个省电的建议。故选B。
44．细节理解题。根据Our growing need for energy is one of the problems facing the world today,可知，对能源的需要我们仍然是一个问题，A 项表述为"如今我们没有任何的能源问题"是错误的。故选A。
45．主旨大意题。根据短文的内容主要提出的四个省电的方法。故选D。
点睛：主旨大意题型旨在考察考生通过快速阅读获取语篇的中心思想的能力，以及辨别主要信息和次要信息的能力。要求考生运用逻辑概括能力，从文章的字里行间获取文章中的代表性观点和中心论点。主旨大意题是考生容易出错的题型之一，错误主要表现为：概括文章中心时以偏概全（只见树木不见森林），概括性不够，或者概括过度，超出了文本的内容，缺乏针对性。45题选项ABC概括性不够。
第二节 阅读填空（共5小题；每小题1分，满分5分）
根据短文内容，将下面A---E五个句子分别填入文中空缺处，使得补全后的短文意思通顺，结构完整。
Electricity is an important part in our life. We can't see or touch it, but it is all around us. 46 But some people don't know that everyone should save electricity. When it is not completely dark, many street lamps (路灯) light up early in some streets of places. 47 Some people are sleeping with the lights on. They are all wrong. Here I make some suggestions about stopping these things.
1. 48 We light them from 7:00 p.m.-5:30 a.m. in summer, and from 5:30 p.m.-6:00 a.m. in winter.
2.If some small areas are very dark, just turn on a few lights.
3.The distance (距离) between street lamps can be 50-60 meters. 49
4.If there are some activities, we can make the lights bright, if there is no activity, lights needn't be too bright.
5. Ask people to save electricity through TV shows, newspapers, and so on.
Electricity is a valuable resource (资源). It helps us live well and conveniently. 50
A. Our life will be terrible without electricity.B. It can save electricity and money.C. Turn on the street lamps on time.D. Some people don't turn off the lights when they leave the room.E. We should take action to save it at once!
【答案】ADCBE
第2卷 非选择题（共30分）
第一节、短文填空(5分)
Battery is used in families and machines. The chemicals inside it can 1.p________ electricity. It’s quite convenient for humans’ 1 lives . Now an old battery is getting a makeover（改造）and can give electric cars more energy to run. The nickel-Iron （镍铁）battery was 2.i________ over 100 years ago and now scientists in Harvard University have improved it to work in minutes and give off energy quickly. This can help electric cars run faster. What’s more, this kind of battery is less 3. h_________ than the common（平常）ones. This new kind of battery hasn’t been used in daily lives, but people are all 4. i__________ in it. Scientists say they are working hard to make it into market as soon as possible. They believe that the battery will make another great 5.c________ for people’s lives.
【答案】1.produce 2.invented 3.harmful 4.interested 5.change
第二节 完成句子。（共7小题，每题2分，满分14分）
1.用英语写日记是个好习惯。
_________ a good habit to _________ ___________ ________ in English.
2. 在某种程度上，水和电都很危险。
___________and water are both dangerous _________ ________ __________.
3. 当你离开家，须确保电灯都关闭了。
When you leave home, you must __________ ________ you _________ _________ the lights.
4. 这些电线连接着电脑。
These wires _______ ______ ________ the computer.
5. 爸爸告诉我客厅必须收拾干净。
My father told me that the living room.________ _______ ________.
【答案】1.keep a diary 2. Electricity in a way 3.make sure turn off 4.are connected to 5.must be tidied
第三节：书面表达 (15分)
电在人类社会中发挥着很重要的作用。请你写一篇题为“The importance of electricity”的短文，介绍电的重要性。
要点：1. 电可以用在生活的多方面。
2. 无法想象没有电的生活。
3. 应该节约用电。
4.如何节约用电，列1-2条。
提示词：由于 because of; 节约 save
要求：1. 60个词左右。标题已给出，不计入总词数内。
2. 必须包括以上全部要点，可以适当发挥。
3. 条理清楚，语句通顺，意义连贯，书写规范。
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Electricity is widely used in our daily lives. When you go to work in the morning and find that traffic lights don’t work, the traffic jam will certainly happen. A patient needs to be operated on at once. What will happen if the operation cannot be made because of the electricity
Without electricity, we can neither watch TV, listen to the tape, nor chat on line. Electricity is closely related to our daily lives.
How terrible it would be if there were no electricity! Electricity is very important to us. We should try our best to save electricity. Then how can we save electricity
First, we must turn off the lights and other Electrical appliances when we don’t use them, second, we can use saving-energy electrical appliances. Most importantly, we should treat it as our duty and call on everyone to act it out.
1 / 13七年级下U6 Electricity
（B卷·提升能力）
【牛津（广州，深圳，沈阳）版】
学校：__________班级：__________姓名：_________ 考号：___________
温馨提示：
本试卷共分第Ⅰ卷和第Ⅱ卷两部分，第Ⅰ卷为选择题；第Ⅱ卷为非选择题；满分为100分，考试时间为100分钟。
第Ⅰ卷 选择题
1、 语法选择(共15小题，每小题1分，满分15分)
In the early 1800s, the first electric light was made. But there was no good way to get electricity into homes. Two men began working to develop ___1____ electric generator（发电机）. One was the famous Thomas Edison. _____2____was a young man ____3_____ Nikola Testa.
Testa was born in Croatia in 1856 and moved to America in 1884. He_____4____ Thomas Edison and worked with him in Edison’s company. Edison had developed a generator that made direct current-DC（直流电）. His generator already ____5_____light a small area of New York City. Testa helped Edison ___6____ his DC generator better. But he did not stay with Edison very long. Testa thought there was a better way of ____7_____electricity.
Nikola Testa knew more about electricity than almost anyone. Testa did not invent the AC generator. ___8___ he believed alternating current-AC（交流电）, was _____9____ way to power homes.
He went to work _____10____ a large electric company. He developed AC generators to power homes and businesses. Tesla was on his way to great_____11____.
Edison fought against Tesla’s AC generators because he was not happy. He told everyone that AC would kill people. It was true that AC was ____12______than DC. But DC had ___13_____own problems. It could not be sent far from the generator. AC, on the other hand, could be sent very far. Finally Nikola Tesla was a great ___14____, and _____15_____his inventions, now the whole world has electricity.
1. A. a B. an C. the D.\
2. A. others B. the other C. other D. another
3. A. name B. named C. names D. naming
4. A. join B. joins C. joined D. joining
5. A. may B. must C. should D. could
6. A. makes B. made C. make D. making
7. A. producing B. produce C. produced D. produces
8. A. and B. but C. or D. so
9. A. good B. better C. best D. the best
10. A. at B. on C. for D. to
11. A. success B. succeed C. successful D. successfully
12. A. dangerous B. much dangerous C. more dangerous D. the most dangerous
13. A. it B. it’s C. its D. its’
14. A. invent B. invention C. inventer D. inventor
15. A. because B. because of C. because for D. because to
二、完形填空 阅读短文，掌握大意，选出最佳选项。（共10小题，每小题1分，共10分。）
The Warrens are a common family. However, this common family has done something ___16___. A few years ago, they moved to the countryside and built a house which was powered (提供动力) by the wind and the sun!
Mr. Warren wanted his family to play a role in ___17___ the planet, so he read a lot about the electrical system. Then, he ___18___ to create electricity to power everything they needed for their daily lives.
The kids were ___19___ at first. “Will we still be able to watch TV What about the computer ” they asked. “Don’t worry at all,” said their father. “Just because we are going to create our own electricity doesn’t mean we have to live in the ___20___.”
“We are going to set up a wind generator (发电机),” explained Mrs. Warren. “Wind is a great way to __21___ electricity. It’s not only free but also clean. The wind doesn’t blow all the time, though. That’s ___22___ we need to store (储存) our power. Then, when there is no wind, we will still have power to run everything in our house.”
Mr. Warren added, “We are also going to collect ___23___ from the sun and turn it into electricity. So, when the wind blows, we have power. When the __24___ shines, we have power, too.”
It’s easy to see that the family really __25___ renewable energy. Now, they are living happily in their self-powered countryside home.
16．A．normal B．special C．similar D．private
17．A．saving B．breaking C．greeting D．examining
18．A．failed B．agreed C．decided D．refused
19．A．angry B．worried C．happy D．interested
20．A．spring B．moment C．past D．dark
21．A．shoot B．waste C．reduce D．produce
22．A．how B．why C．which D．where
23．A．scenes B．energy C．rubbish D．objects
24．A．star B．light C．sun D．moon
25．A．trusts in B．calls in C．shuts off D．cuts down
三、阅读 （共分两节，满分45分）
第一节 阅读理解（共20小题；每小题2分，满分40分）
阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑
A
Let me tell you something very important: Never have water near you when you have something electric not far away! Last month, my family experienced a terrible thing.
My brother Tom had just received a new train set. We decided to build a little “world” for it with mountains, streetlights and even a lake. We found a large board that was big enough to hold the train. We spent over a week building the things with paper and cardboard.
When we finished all the things, we showed everyone our new train set. It was very wonderful. Now, it was time to turn it on. I flipped the switch and the train began to move. Everyone was excited.
I turned to look at Tom, and he looked strange. He was shaking. “Tom!” I shouted. He didn’t move, looking straight ahead. Suddenly, my dad realized what was happening. He reached quickly for the switch and turned off the train.
The water had leaked(漏) from the bag under the board and arrived where Tom was standing. One of our wires had fallen under the table and was touching it. We sent Tom to the hospital. And luckily Tom was fine. He told us that when the electricity was on, he could not move at all.
We learned a lesson that day. Keep water away from electricity! It’s too dangerous.
26．How long did it take them to build the little “world”
A．A month B．Over a month. C．More than a week. D．Less than a week.
27．The underlined word “flipped” in Paragraph 3 most probably means “________”.
A．起飞 B．按下（开关） C．计时 D．发电
28．The underlined word “it” in Paragraph 5 refers to ________
A．the board B．the water C．the bag D．the table
29．Which of the following is TRUE according to the passage
A．After finishing the train set, my dad turned it on.
B．There were mountains, bridges and a lake on the large board.
C．Tom couldn’t move at all when the electricity was on.
D．I found Tom was strange and then I turned off the switch quickly.
30．According to the passage, we should remember to ________
A．stay away from water B．have something electric near us
C．take good care of the young D．keep water away from electricity
B
Cars make our lives more convenient. But they can also be a problem, especially fossil fuel (化石燃料) cars, which are a major cause of air pollution.
To improve the environment, many countries are developing electric vehicles (EVs, 电动车). Among them, China is taking a leading role and has created the world’s largest EV market, according to the Wall Street Journal.
Last year, over 40 percent of the 753,000 EVs sold worldwide were sold in China, more than twice as many as the number sold in the United States, according to the International Energy Agency.
Chinese drivers are already big fans of EVs. Chinese auto companies, including BYD and BAIC (北汽集团), rank among the top in the world in EV sales.
“Charging (充电) an electric car is cheaper than filling up a fossil fuel car with gas,” said Wu Hao, who bought an electric car from BAIC this year.
However, there are still some problems. It can be hard to find charging stations (充电桩) and the cars can’t go far before needing to be recharged.
Some of these problems are being solved. In 2014, China had 31,000 charging stations, according to Xinhua. Now China has the world’s largest EV charging network, with more than 167,000 charging stations in total, according to the Economic Daily.
Developing EVs is one of many efforts China has made to reduce pressure on its environment after the government promised to stop increases in carbon dioxide emissions (二氧化碳排放量) by 2030. “As China goes, so will the world’s auto industry,” the Wall Street Journal said.
31. What do we know about electric vehicles
A. They are sold more than fossil fuel cars.
B. They are more convenient than fossil fuel cars.
C. They cause less pollution than fossil fuel cars.
D. They are safer than fossil fuel cars.
32. How many EVs were sold in China last year
A. More than 301,000.
B. More than 753,000.
C. More than 31,000.
D. more than 450,800.
33. What do we know about charging EVs
A. It is convenient to charge EVs.
B. People need to charge them near their home.
C. It costs less money than filling up a fossil fuel car.
D. Charging EVs takes too much time.
34. What do we know from the story
A. EVs can go far after they are charged.
B. More countries will encourage people to use EVs.
C. Fossil fuel cars will disappear in the future.
D. China should build a larger EV charging network.
35. The passage is mainly about
A. how to deal with air pollution
B. why EVs are so popular
C. the development of EVs in China
D. why China needs electric cars
C
Until the late 1800s, most people went to bed soon after sunset. They used candles and oil for light. Amer ican inventor Thomas Edison changed the way people lived when he invented the first light club .The light bulb was just one of the more than 1000 inventions of this great inventor.
Thomas Alva Edison was born in 1847. He attended school for only three months, His mother taught him reading and writing at home.
In 1862 .Edison saved a boy from being run over by a train. The boy’s father operated a telegraph machine. In order to thank him, the father taught Edison how to operate the telegraph. Edison then made improvements to the telegraph. He earned money from his inventions.
In 1876 , Edison started the first research laboratory in New Jersey. He worked very hard. He lived in his laboratory and became rich because of his inventions. He married twice and had six children. But he worked so hard that he spent little time with his families.
Edison's greatest inventions included an improved telephone, photograph and electric battery. He is best remembered for inventing the long-lasting light bulb.
In the 1870s. many inventors were trying to make a light bulb. Edison tried hundreds of times, Finally he found a filament（灯丝） made of carbon. Edison's lamp was a great success. It burned for more than 40 hours.
36. When did Edison learn to operate the telegraph
A. In 1847. B. In 1862. C. In 1876. D. In 1867.
37.Edison started the first research laboratory in New Jersey______ .
A. at the age of 27 B. when he was 29 C. in his thirties D. after 1876
38.Where did Thomas Edison learn reading and writing
A. At school. B. At home. C. At the laboratory. D. In a factory.
39.Why did people like Edison
A. Because he made a lot of money. B. Because he improved the telegraph.
C. Because he invented the light bulb. D. Because he was a hard-working man.
40. According to the sixth paragraph, we know that________.
A. nobody else's bulb could burn for more than 40 hours except Edison’s
B. Edison succeeded in making a light bulb easily
C. the filament made of carbon was the worst
D. Edison was the only one who wanted to invent a light bulb
D
Energy is everywhere. We use energy every day.
Electricity is a form of energy and this is what powers the TV, hairdryer, phone, fridge, electric toothbrush and more! Our growing need for energy is one of the problems facing the world today, because producing electricity also produces pollution.
Here are some simple ways to make a big difference when using electricity.
On or off Leaving televisions and computers on with the little red light showing still uses electricity, even though they might look like they’re turned off. To stop this you can turn them off.
Lights out! Turning lights off when you’re not in the room can save a lot of energy.
Fridge door closed. The fridge is an important part of the kitchen, because it keeps food fresh, cool and healthy! But it takes a lot of energy to keep cool, so try not to leave the fridge door open or put hot things inside.
Use the sun's energy. An increasing number of people are fitting solar panels（太阳能电池板） to their houses. They create electricity from sun-light, which can then be used to power our homes. Solar heating panels make hot water, reducing the need for electricity or gas.
41．The underlined word “powers” means “ ” in Chinese.
A．动力 B．权利 C．驱动 D．散发
42．What can save energy according to the passage
A．Turn the lights off when you’re not in the room.
B．Use gas to create electricity.
C．Leave the fridge door open or put hot things inside.
D．Leave televisions and computers on.
43．There are ways to save electricity in the passage.
A．three B．four C．five D．six
44．Which is NOT true according to the passage
A．We don't have any energy problem today.
B．The fridge can keep food fresh, cool and healthy.
C．When we produce electricity, we produce pollution, too.
D．Electricity from sunlight can be used to power our homes.
45．The passage mainly tells us .
A．electricity is a form of energy
B．how to create electricity from sunlight
C．how to use the fridge correctly
D．the different ways to save electricity
第二节 阅读填空（共5小题；每小题1分，满分5分）
根据短文内容，将下面A---E五个句子分别填入文中空缺处，使得补全后的短文意思通顺，结构完整。
Electricity is an important part in our life. We can't see or touch it, but it is all around us. 46 But some people don't know that everyone should save electricity. When it is not completely dark, many street lamps (路灯) light up early in some streets of places. 47 Some people are sleeping with the lights on. They are all wrong. Here I make some suggestions about stopping these things.
1. 48 We light them from 7:00 p.m.-5:30 a.m. in summer, and from 5:30 p.m.-6:00 a.m. in winter.
2.If some small areas are very dark, just turn on a few lights.
3.The distance (距离) between street lamps can be 50-60 meters. 49
4.If there are some activities, we can make the lights bright, if there is no activity, lights needn't be too bright.
5. Ask people to save electricity through TV shows, newspapers, and so on.
Electricity is a valuable resource (资源). It helps us live well and conveniently. 50
A. Our life will be terrible without electricity.B. It can save electricity and money.C. Turn on the street lamps on time.D. Some people don't turn off the lights when they leave the room.E. We should take action to save it at once!
第2卷 非选择题（共30分）
第一节、短文填空(5分)
Battery is used in families and machines. The chemicals inside it can 1.p________ electricity. It’s quite convenient for humans’ 1 lives . Now an old battery is getting a makeover（改造）and can give electric cars more energy to run. The nickel-Iron （镍铁）battery was 2.i________ over 100 years ago and now scientists in Harvard University have improved it to work in minutes and give off energy quickly. This can help electric cars run faster. What’s more, this kind of battery is less 3. h_________ than the common（平常）ones. This new kind of battery hasn’t been used in daily lives, but people are all 4. i__________ in it. Scientists say they are working hard to make it into market as soon as possible. They believe that the battery will make another great 5.c________ for people’s lives.
第二节 完成句子。（共7小题，每题2分，满分14分）
1.用英语写日记是个好习惯。
_________ a good habit to _________ ___________ ________ in English.
2. 在某种程度上，水和电都很危险。
___________and water are both dangerous _________ ________ __________.
3. 当你离开家，须确保电灯都关闭了。
When you leave home, you must __________ ________ you _________ _________ the lights.
4. 这些电线连接着电脑。
These wires _______ ______ ________ the computer.
5. 爸爸告诉我客厅必须收拾干净。
My father told me that the living room.________ _______ ________.
第三节：书面表达 (15分)
电在人类社会中发挥着很重要的作用。请你写一篇题为“The importance of electricity”的短文，介绍电的重要性。
要点：1. 电可以用在生活的多方面。
2. 无法想象没有电的生活。
3. 应该节约用电。
4.如何节约用电，列1-2条。
提示词：由于 because of; 节约 save
要求：1. 60个词左右。标题已给出，不计入总词数内。
2. 必须包括以上全部要点，可以适当发挥。
3. 条理清楚，语句通顺，意义连贯，书写规范。
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
1 / 13
