题型:阅读选择 题类: 难易度:普通
(初中必刷题)沪教版七年级下册 Unit 6 Electricity everywhere 单元限时检测
Energy is everywhere.We use energy every day.
Electricity is a form of energy and this is what powers the TV, hair dryer, phone, fridge, electric toothbrush and more! Our growing need for energy is one of the problems that the world is facing today, because producing electricity also produces pollution.
Here are some simple ways to make a big difference when we are using electricity.
On or off? Leaving televisions and computers off with the little red lights on 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 doors 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 solar energy.An increasing number of people are fitting solar panels to their houses.They create electricity from sunlight, which can then be used to power their homes.Solar heating panels make hot water, reducing the need for electricity or gas.
Dublin is the capital and largest city of the Republic of Ireland. It is also the political(政治的, economic, cultural, tourism(旅游)and transportation center of Ireland. For tourists, they like taking the bus tour to go city sightseeing because it's very convenient(方便的)and relaxing.
City Sightseeing Bus Tour in Dublin Do you want to have fun in Dublin? Take a bus tour! Timetable Stop Name First Tour Last Tour Tallaght Village 09:30 18:00 Walkinstown Shopping Center 09:35 18:05 Crumlin Hospital 09:50 18:20 St. Patrick's Cathedral 09:55 18:25 College Green 10:00 18:30 Tour Prices 24 Valid ticket Adult(16+)£15. 5 Student£13 Child (5- 15) £10 48 Valid ticket Adult(16+)£19 Student£15 Child (5- 15) £11 A valid ticket: it can be used for a certain period of time. |
You can see… St. Patrick's Cathedral It is the largest church in Ireland. The National Gallery There are lots of paintings from masters like Picasso. Guinness Storehouse You can get everything you want about Guinness black-beer. Trinity College Dublin The library of the college is used in the Harry Potter films. |
I lost my schoolbag. A pencil box, a jacket and some books are in it. I must find it. Please help me. My name is Frank, and my phone number is 908-2817. Thanks. | |
Lost: My notebook I lost my notebook in the school library. Mark Phone: 392-9281 Email: mark521@gmail.com. | Nick I think this is your English book. It's white and yellow. Your name is on it. Please email me at keven129@gmail.com. Keven |
Found: A set of keys and a school ID card. Are the keys and the school ID card yours? Please call Tina at 231-2937. |
Most of us think the telephone was invented by Alexander Graham Beil. {#blank#}1{#/blank#}
In fact, an Italian named Antonio Meucci was officially recognized(认定)as me inventor a few years ago. Who is Meucci and why wasn't he known for his invention at the time?
Antonio Meucci was born in Italy in 1808. He studied engineering and drawing. During his studies, Meucci started to experiment with electricity. {#blank#}2{#/blank#}When two places were connected with wire, people in those places could hear each other talk.
In 1850, Meucci and his wife, Ester, moved to New York. Meucci was worried about his wife, because she had become very ill. {#blank#}3{#/blank#}To solve this problem, he connected metal cables between his home and his workshop. This way, they could talk to each other conveniently.
Meucci invited a group of people to see his new invention. They listened in amazement as the voice of a singer was heard through the wires.
{#blank#}4{#/blank#} Even worse. Meucci never applied for a patent(专利)on his invention. Meanwhile, Alexander Graham Bell was working on the same idea and in 1876 the patent for the telephone was given to him.
In 2002, more than a century after Meucci's death, his work was finally recognized by the government. {#blank#}5{#/blank#}
A. He discovered that sound could travel through metal cables. B. However, he wasn't the first person to think of the idea. C. Unluckily, only a few people attended this talk. D. He will now be known all over the world as the telephone's inventor. E. He needed to keep in touch with her at all times. |
As we all know, with the development of technology, smartphones have influenced the old people in our family a lot. A TV programme interviewed three teenagers on how smartphones influence their family.
My grandfather asked me to teach him how to play the popular video game King of Glory(王者荣耀). I was surprised that he was interested in this! He chats with family members on Wechat every day. He tries to learn other new things as well. For example, he watches courses on learning apps. Although he is old, he still cares about technology and sports. So, as we can see, the Internet can help elderly people. —Xing Yuxi, 12, Chongqing |
I live in Hangzhou, a city of technology. People enjoy the convenience(便利) brought by the Internet. However, I often worry about the elderly. Take my grandma as an example. On one hand, she would like to get discounts by using mobile phones. On the other hand, she's afraid of getting cheated online. I think it takes time for elderly people to get used to these things. We should help them keep up with the times. — Sun Run, 14, Zhejiang |
Smartphones have made a big difference in my grandma's life. In the past, newspaper and TV programs were her only ways to get information. However, it was not good for her eyes, as she has severe cataracts(严重白内障). But now, she can listen to the news through all kinds of apps on her mobile phone. She doesn't have to look at the screen all the time. Sometimes, she even plays mobile games for fun. Thanks to the Internet, my grandma now has a more colorful life. —Wen Jiayi, 13, Sichuan |
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