Today an electric light is the most commonly used device in our daily lives.We need them to provide light for houses，buildings，and streets.We also have handheld lights that have a backup （后備） time of more than 12 hours.The technology that we use today may be different from the past，but what we have today can be traced all the way back to the invention of the electric light.
Efforts to create a working electric light go back to 1800 when an Italian scientist named Alessandro Volta，during his experiments on the development of electric batteries，observed that when a copper（銅）wire connected the two ends of the battery，it starts to glow due to the passage of electricity.The electric battery he invented then became the source of many electric experiments.
Researches and developments on the electric light were continued by many inventors.It is said that the electric light was invented by 20 inventors before Thomas Edison.
The main problem in the developments of the electric light was the filament（燈絲）inside it；it didn't last very long and melted very quickly.In this regard，Thomas Edison was very important in the development of the electric light.
Edison started developing and testing new filaments that could last longer.He tested many materials and finally developed a filament that could last for 13.5 hours，which proved that he was moving in the right direction.He tried more than 3，000 electric light designs and 6，000 different filament materials.Finally，he found a filament that could last for more than 1，200 hours.
Edison became successful not just because he developed a long-lasting filament.He also developed the entire electric lighting system，including the sockets（插孔）and switcjye.ais.He also made the first steam-generating power station in 1882.
（1）Who created the first electric battery？ CC
A．Thomas Edison.
B．Twenty inventors.
C．Alessandro Volta.
D．Some historians.
（2）What was the biggest difficulty in the development of the electric light？ DD
A．There were only a few materials to make filaments.
B．The designs for the electric light were not good enough.
C．The electric light melted in a short time.
D．The filaments could not last for a long time.
（3）Which of the following is NOT Thomas Edison's contribution？ AA
A．He developed 3，000 light bulb designs.
B．He developed the first power generating station.
C．He found a long-lasting filament.
D．He created an electric lighting system.
（4）What do you think could be the best title of this passage？ BB
A．The Advanced Technology of Electricity
B．The Development of the Electric Light
C．How Electric Lights Work
D．The Life of Thomas Edison
【考點(diǎn)】說明文．
【答案】C；D；A；B
【解答】
【點(diǎn)評(píng)】
聲明：本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有，未經(jīng)書面同意，不得復(fù)制發(fā)布。
發(fā)布：2024/5/27 14:0:0組卷：2引用：1難度：0.5
相似題
-
1．In the world of digital health，Silicon Valley-based Mindstrong stands out．It has a remarkable team and tens of millions of funding．It also has a fascinating idea- its app，based on mental functioning research，can help detect troubling mental health patterns by collecting data on a person's smartphone usage-how quickly they type，for instance．
The company's app collects information about how people are typing and runs it through a machine learning algorithm（計(jì)算程序） to determine which data can predict their emotional state．The idea is to use that data to establish a "normal pattern-so it can be compared with someone 's typing habits on any given day．If the habits change，slower or more anxious than normal，the app can warn a health care provider．
The promise of this technology has made Mindstrong incredibly popular since it was launched last year；already more than a dozen counties in California have agreed to apply the company's app to patients．Does the app live up to its promise？There's no way to tell．Almost no one outside the company has any idea whether it works，leading some experts to wonder if the technology is ready for the real world． "I wouldn't waste all that time and money in the wild until they get sure that some of those things are as specific as they hope they are，" said Rosalind Picard，a researcher at MIT Media Lab，who is familiar with Mindstrong's work．
"It has passed the gold-standard clinical tests for depression and anxiety， " said Dr．Paul Dagum，the company' s founder． "We're confident，and we' re already seeing some really exciting results． " Mindstrong officials said that among their most encouraging results is that its app can even predict how a person will feel next week，kind of like a weather app for your mood． "For a clinician or someone looking after a patient，they know that it could be very，very powerful．" Dagum said．
（1）What can Mindstrong s app do？
A．Improve its users' mental health
B．Get its users to type more quickly．
C．Discover its users' mental state．
D．Work out the causes of its user' trouble
（2）What is the second paragraph mainly about？
A．The ways of collecting data．
B．The app 's working principle．
C．The analysis of typing habits
D．The development of the app
（3）What is Rosalind Picard's attitude towards the app？
A．Skeptical
B．Positive
C．Uncaring
D．Defensive
（4）What can we infer about Dagum's opinion on the app？
A．The app has a powerful effect on anxiety．
B．The app can also predict weather conditions．
C．Care providers could be advocates of the app．
D．Doctors benefit more from the app than their patients．發(fā)布：2025/1/1 13:30:1組卷：10引用：3難度：0.5 -
2．In recent days，I have watched a TV series named The Awakening Age.It narrates the story of how the Communist Party of China（1）
（found） in 1921 by the generation of Chen Duxiu.The story is so inspirational and（2）（touch） that I can't help feeling fired up about it.
This "red" TV drama reminded me（3）all of the things I had seen and experienced regarding the Communist Party.To some extent，I really feel a deep（4）（connect） with the Party.There is no doubt in my mind that the Party has helped to support both an improvement in the quality of my life（5）my educational development.I believe it will continue to provide me with the support in the process of my growing up in the future.
Having visited some of the most sacred places（6）（involve） in China's revolutionary history，I began to grow much（7）（close） to my country's political identity.My memories from these unforgettable experiences have become（8）important part of the person I am today.
Now I can proudly say that I have come to understand the whole history and am familiar with almost all of the stories of our Communist Party.To tell the（9）（true），I really admire all of the Party members，each of（10）has made contributions over the years in order to realize the great rejuvenation of our motherland.發(fā)布：2025/1/1 13:30:1組卷：3引用：3難度：0.5 -
3．Since ancient times，people have enjoyed themselves at the theatre.Here are two historical theatres，one in the East and one in the West.
The Deheyuan Grand Theatre，located in the Summer Palace in Beijing，was built in the Qing Dynasty.It is regarded as the place （1）Peking Opera developed into its current form.The theatre has three floors — the Fu stage，the Lu stage and the Shou stage，symbolizing （2）（happy），prosperity and longevity.The stages have special doors for actors （3）（jump） out of the floor，and equipment to help them fly through the air.A well and five ponds under the Shou stage （4）（use） in water scenes and also to increase sound effects.Today，visitors （5）the Deheyuan theatre are still amazed by its structure （6）beautiful paintings.
The first Globe Theatre was created by a group of actors，one of whom was William Shakespeare.It opened in London in 1599 and became （7）huge success until it burnt down in a fire in 1613. （8）（stand） by the River Thames，the Globe Theatre we see today has three main elements：a blue roof painted with stars，the stage itself and a（9）（hide） door in the floor.
If you are a fan of William Shakespeare，you must come to the Globe to see a play.As Shakespeare （10）（he） said， "All the world's a stage."發(fā)布：2025/1/1 13:30:1組卷：10引用：3難度：0.5
把好題分享給你的好友吧~~