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If you’re DIY-minded, you can build your own solar power system. In some you can even build your own solar panels, although the amount that you can effectively DIY home solar depends on how much you want to power. Making your own solar panel is a time-consuming process and requires some electrical skills. However, it can also be very regarding—leaning to build your own panel is a great way to understand how electricity in generated.
Before you can build your own solar panels, you first need to understand how solar cells generate electricity. Once you’ve bought individual solar cells (they can be purchased online), the basic process for building your own solar panel goes like this: Prepare the backing for your panel. Many DIY solar panel builders prefer to use a wooden board as the base for their solar cells.
You’ll need to drill holes m the board so that the wires for each cell can pass through. Wire your solar cells together. This requires some experience for electrical work. Use a soldering iron (烙铁) to attach wire to the solar cells and then link each of the cells together. Attach cells to your backing. If possible, attach each solar cell to the backing individually. This makes it easier to replace a single cell in the event that becomes damaged or is not operating properly.
At this point you have a functional solar panel that can produce electricity when the sun shines. However, a solar panel by itself is not useful. If you are trying to generate electricity to power devices in your home, you need to pair your panel with inverter (转换器) that will turn direct current (DC) power from the sun into alternating current (AC) power used in most electronic devices.
1.What does the author think of building DIY solar panel in paragraph 1?
A. It is easy. B. It is necessary.
C. It is common. D. It is worthwhile.
2.What’s the first step of building your own solar panel?
A. Master the advanced knowledge of science.
B. Buy individual solar cells.
C. Prepare the backing for your panel.
D. Drill holes in the wooden board.
3.Why are solar cells connected to the wooden board separately?
A. To produce more power.
B. To pass through the wooden board easily.
C. To attach cells to the backing tightly.
D. To substitute damaged cells easily.
4.What can be inferred from the text?
A. People with electrical skills have advantages over those without in DIY solar panels.
B. A functional solar panel can give power to your home devices directly.
C. How to pair an inverter depends on how much power you want to power.
D. A wooden board is a must for your own solar panels.
高二英语阅读理解中等难度题查看答案及解析
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If you’re DIY-minded, you can build your own solar power system. In some cases, you can even build your own solar panels (电池板), although the amount that you can effectively DIY home solar depends on how much you want to power. Making your own solar panel is a time-consuming process and requires some electrical skills. However, it can also be very rewarding-learning to build your own panel is a great way to understand how solarelectricity is generated.
Before you can build your own solar panels, you first need to understand how solar cells generate electricity. Once you’ve bought individual solar cells (they can be purchased online), the basic process for building your own solar panel goes like this: Prepare the backing for your panel. Many DIY solar panel builders prefer to use a wooden board as the base for their solar cell. You’ll need to drill holes in the board so that the wires for each cell can pass through. Wire your solar cells together. This requires some experience with electrical work. Use a soldering iron (烙铁) to attach wire to the solar cells and then link each of the cells together. Attach cells to your backing. If possible, attach each solar cell to the backing individually. This makes it easier to replace a single cell in the event that becomes damaged or is not operating properly.
At this point you have a functional solar panel that can produce electricity when the sun shines. However, a solar panel by itself is not useful. If you are trying to generate electricity to power devices in your home, you need to pair your panel with an inverter (换流器) that will turn direct current (DC) power from the sun into the alternating current (AC) power used in most modern electronic devices.
1.What does the author think of building DIY solar panel in the first paragraph?
A.It is easy. B.It is necessary. C.It is common D.It is worthwhile
2.What’s the first step of building your own solar panels?
A.Master the advanced knowledge- of management.
B.Buy individual solar cells.
C.Prepare the backing for your panel.
D.Drill holes in the wooden board.
3.Why are solar cells connected to the wooden board separately?
A.To produce more power.
B.To substitute damaged cells easily.
C.To attach cells to the backing tightly.
D.To pass through the wooden board easily.
4.What can be inferred from the text?
A.People with electrical skills have advantages over those without in DIY solar panels.
B.A functional solar panel can give power to your home devices directly.
C.How to pair an inverter depends on how much you want to power.
D.a wooden board is a must for your own solar panels.
高二英语阅读理解中等难度题查看答案及解析
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Believe it or not, the ability to choose is the power to change. If you can choose to live your life differently, will you be the same person?
Well, choosing to do the following few “simple” things will help to change your life.
Review your life. Take time to go through your life and ask yourself, “If I do the same thing I do every day, will there be a change? If I want to change, where will my first step be?”
Make careful choices. Choose exactly what you wish to get to live your life; describe and think what you really want.
Keep up with chances. Find out about the possibilities and ways that can make you move toward your goals, write them down and see which one suits you most.
Get down to business. Start working on your goals. People may bring you down; you may have difficulties; you will fail and want to give up. But the most important thing is never to give up.
If you try these “simple” things, you will find that success is something for everyone, and you will finally become what you want to be. Remember, success is more than what you hold in your hands; it is something from the heart.
1. Once you get down to business, the most important thing is to _____.
A. set goals B. see possibilities
C. keep on trying D. ask for help
2.The underlined word “it” in the last paragraph refers to ____.
A. change B. choice C. life D. success
3.This passage mainly discussed the relationship between ______.
A. power and life
B. choice and change
C. power and success
D. choice and difficulty
高二英语阅读理解中等难度题查看答案及解析
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Believe it or not, the ability to choose is the power to change. If you can choose to live your life differently, will you be the same person?
Well, choosing to do the following few “simple” things will help to change your life.
Review your life. Take time to go through your life and ask yourself, “If I do the same thing I do every day, will there be a change? If I want to change, where will my first step be?”
Make careful choices. Choose exactly what you wish to get to live your life; describe and think what you really want.
Keep up with chances. Find out about the possibilities and ways that can make you move toward your goals, write them down and see which one suits you most.
Get down to business. Start working on your goals. People may bring you down; you may have difficulties; you will fail and want to give up. But the most important thing is never to give up.
If you try these “simple” things, you will find that success is something for everyone, and you will finally become what you want to be. Remember, success is more than what you hold in your hands; it is something from the heart.
1.How many pieces of advice does the writer give on changing one’s life?
A．Three B．Four C．Five D．Six
2.Once you get down to business, the most important thing is to _____.
A．set goals B．see possibilities
C．keep on trying D．ask for help
3.The underlined word “it” in the last paragraph refers to ____.
A．change B．choice C．life D．success
4.This passage mainly discussed the relationship between ______.
A．power and life B．choice and change
C．power and success D．choice and difficulty
高二英语阅读理解中等难度题查看答案及解析
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1.One of the best things you can possibly do is to start your own club. It’s great fun especially if you are the sort of person who feels there’s never anything to do during the school holidays.
The first thing you need to come up with is an idea for your club. 2. Pets, clothes, pop music or dancing groups, sports, making things? The list is endless.
Next you need some friends to be in your club with you. 3.All you need is three or four other people who are interested in the same thing as you.
4.You should all sit down somewhere together with lots of pieces of paper and write down every name you can think up. That’ll keep you busy for ages.
At your first meeting you should make up a rule book. And the first rule should be no grown-ups or little/big brothers or sisters! The best clubs are always secret!
Now you have just about everything you need, except membership cards. These are very important and again you can speed a lot of time making them. 5.Why not leave some space for a photo of yourself? That will make the membership card really look like it.
So there you are, get clubbing! Once you get started you’ll think of loads of more interesting things to do!
A. That’s easy.
B. Enjoy your own club!
C. What are you interest in?
D. Invite a designer to join you.
E. Some vacation is just around the corner.
F. Then you need to pick a name for your club.
G. Use a bright thick pen to make a special design.
高二英语其他题简单题查看答案及解析
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If you don’t express your anger, it can _________ inside you.
A. build up B. cut up
C. break up D. bring up
高二英语单项填空中等难度题查看答案及解析
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Only if he gets a job ______ have enough money to build his own house.
A. he can B. can he C. he will D. did he
高二英语单项填空中等难度题查看答案及解析
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Have you dreamed of building your own machine? Do you wish you could invent something new? Here we look at a few British inventions of recent times.
Adaptable Glasses
Do you wear glasses? If so, can you imagine life without them? In 1985, Joshua Silver, a professor at Oxford University, asked himself, “Can I invent a pair of glasses that could be changed by the wearer?” He designed two plastic lenses(透镜) that are filled with a special liquid. The liquid can be changed between the lenses until you can see clearly. The glasses are not beautiful but they are easy to use and cheap to make.
The Wind-up Radio
When you switch your TV on tonight, think about all those people without electricity. Thinking about this, Trevor Baylis came up with the idea of designing a radio that could be powered by hand. In common with Joshua Silver he wanted his invention to be cheap and easy to use. The radio has a generator (发电机) which is powered by turning a handle. In 1996 it won a BBC Design Award for Best Protect and Best Design.
The Dyson Cleaner
In many homes around the world you can see a cleaner that looks like a spaceship. This is the Dyson vacuum (真空) cleaner which uses something called “cyclonic separation” to separate the dirt. You do not need a bag for your cleaner and it does not get blocked so it is very practical. The idea came to Sir James Dyson after he kept having problems with his vacuum cleaner. He decided he could design a better one and in 1993 he opened his own factory. The Dyson is now one of the best-selling cleaners in the UK and Dyson is believed to have earned over a billion pounds.
The Zapata Fly-board
Ever dreamed of rising through the water and jumping high in the air like a dolphin? Now you can try a fly-board, built by water sports fan Frank Zapata. With it you can dive back in the water and out again. It’s possible to jump to unbelievable heights out of the water—over 30 feet. The basic fly-board model comes in at ￡4,200.
So keep dreaming and inventing. One day you might get it right.
1.Who invented Adaptable Glasses?
A. Joshua Silver. B. Trevor Baylis.
C. James Dyson. D. Frank Zapata.
2.Which invention won an award?
A. Adaptable Glasses. B. The Wind-up Radio.
C. The Dyson Cleaner. D. The Zapata Fly-board.
3.Who might be interested in the invention of the Dyson cleaner?
A. Those who need radios.
B. Those who have eye problems.
C. Those who are fond of diving.
D. Those who want to use cleaners more easily.
4.What might be the best title for the passage?
A. Kind Inventors. B. Cheap Inventions.
C. Creative Minds. D. Future Dreams.
高二英语阅读理解中等难度题查看答案及解析
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What will power your house in the future？Nuclear，wind，or solar power？According to scientists at the Massachusetts Institute of Technology (MIT) in the US，it might be leaves — but artificial (人造的) ones.
Natural leaves are able to change sunlight and water into energy. It is known as photosynthesis (光合作用)．Now researchers have found a way to imitate this seemingly simple process.
The artificial leaf developed by Daniel Nocera and his colleagues at MIT can be seen as a special silicon chip with catalysts (催化剂)．Similar to natural leaves，it can split water into hydrogen and oxygen when put into a bucket of water. The hydrogen and oxygen gases are then stored in a fuel cell，which uses those two materials to produce electricity，located either on top of a house or beside the house.
Though the leaf is only about the shape of a poker card，scientists claimed that it is promising to be an inexpensive source of electricity in developing countries. “One can imagine villages in India and Africa not long from now purchasing an affordable basic power system based on this technology,” said Nocera at a conference of the American Chemical Society.
The artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but was too expensive and unstable for practical use. The new leaf，by contrast，is made of cheap materials，easy to use and highly stable. In laboratory studies，Nocera showed that an artificial leaf prototype (原型) could operate continuously for at least 45 hours without a drop in activity.
The wonderful improvements come from Nocera's recent discovery of several powerful，new and inexpensive catalysts. These catalysts make the energy transformation inside the leaf more efficient with water and sunlight. Right now，the new leaf is about 10 times more efficient at carrying out photosynthesis than a natural one. Besides，the device can run in whatever water is available；that is，it doesn't need pure water. This is important for some countries that don't have access to pure water.
With the goal to “make each home its own power station” and “give energy to the poor”，scientists believe that the new technology could be widely used in developing countries，especially in India and rural China.
1.Which of the following orders correctly shows how the artificial leaf is used to produce electricity?
a．artificial leaves split water into hydrogen and oxygen
b．the hydrogen and oxygen gases are stored in a fuel cell
c．the artificial leaves are put in water
d．the fuel cell uses hydrogen and oxygen to produce electricity
A．c，a，b，d B．c，b，a，d
C．b，c，a，d D．c，a，d，b
2.The purpose of the scientists at MIT in developing the new artificial leaf is to________.
A．build up more power stations in the world
B．provide cheaper energy for developing countries
C．offer people in developing countries access to pure water
D．gain a deeper understanding of the photosynthesis process
3.The main idea of this passage is ________.
A．an introduction to the history of artificial leaves
B．a mixture of water power and solar energy
C．giving energy to the poor
D．an invention copying photosynthesis
高二英语阅读理解中等难度题查看答案及解析
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请根据以下提示，结合事例，写一篇英语短文。
If your life feels like it is lacking the power you want and the motivation you need, sometimes all you have to do is change your point of view.
注意：
无须写标题，不得照抄英语提示语；
除诗歌外，文体不限；
文中不得透露个人姓名和学校名称
词数120词左右。
高二英语书面表达中等难度题查看答案及解析