Everyone knows that chickens lay eggs(产卵). Most people know that all the other b - 初中英语试题 - 超级试练试题库

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Everyone knows that chickens lay eggs(产卵). Most people know that all the other birds do as well. But have you ever thought about other animals that lay eggs? They include bees, snakes and some sea animals. When a mother lays eggs, many more babies can be born at once, or in a few days, because there is very little development inside the parent. Animals that do not lay eggs often have fewer babies. Animals lay many eggs because other animals may eat the babies. However, even though some of their babies are eaten, they will still have some more to continue their family.
Some animals that lay eggs do not take care of their young. Turtles come onto the beach and dig holes. Then they put their eggs in the sand and leave. A turtle mother can lay as many as 150 eggs. When the babies come out of the eggs, they must find their own way to the ocean. They must learn how to live on their own. Many young turtles get eaten by other animals.
Most eggs have an outside shell that keeps the growing animal inside safe. The egg shell also keeps the young animal from drying out. After the animal is fully developed, it comes out of the egg.
The animal grows bigger and bigger. Then it can have its own young.
小题1:Why do animals lay many eggs?

A．Because other animals may eat their babies.

B．Because they use their eggs for food.

C．Because they want to have fewer babies.

D．Because they want to eat their babies.

小题2:What do we know about turtles?

A．They don’t look after their babies.

B．Baby turtles hate their mother.

C．Other animals can’t eat turtle babies

D．Turtle babies can’t take care of themselves.

小题3:Egg shells can be used to______.

A．make eggs more beautiful

B．make eggs more tasty

C．let the young animals dry

D．protect the young animals

小题4:The passage is probably from___________.

A．a newspaper	B．a science book
C．a sports magazine	D．a story book

答案

小题1:A
小题2:A
小题3:D
小题4:B

解析

试题分析：这篇短文讲述一些产蛋动物产卵的方式及原因，以及卵宝宝的生长方式，和这些蛋壳的作用。特别介绍了乌龟产下卵宝宝后是不照顾他们的，这些宝宝要靠自己的能力生存。
小题1:细节理解题。根据第一段第五行Animals lay many eggs because other animals may eat the babies.“动物产下许多的蛋是因为其他的动物可能会吃掉这些宝宝。”可知答案，故选A。
小题2:细节理解题。根据第二段第三行When the babies come out of the eggs, they must find their own way to the ocean.“当龟宝宝破壳而出时，他们必须自己找到去海洋的路。”可知乌龟产下蛋时不去照顾它的宝宝，故选A。
小题3:细节理解题。根据第三段第一句话Most eggs have an outside shell that keeps the growing animal inside safe.“大多数卵都有卵壳，是为了保护里面的动物安全生长。”故选D。
小题4:推理判断题。这篇短文主要描述产蛋动物产蛋的原因，和这些卵的生长方式等。因此可以推断这是和科学有关的，故选B。

核心考点

试题【Everyone knows that chickens lay eggs(产卵). Most people know that all the other b】；主要考察你对科普环保类等知识点的理解。[详细]

举一反三

Character, courage and confidence are words you might use to describe your heroes. These words can describe you! Take action as follows and you’ll be a hero, too!
Part 1: Character
Character is something that makes you the person you are like being honest, friendly, and helpful. See the chart below. On the left is our standard of good character. Write down your promise for each line on the right. Then, get a witness（证人）to sign it. Put it up where you’ll see it every day and do your best to keep it.

To build your character	Your promise
I will do my best to…
be honest and fair.	eg. I’ll tell the truth when mom asks if I have finished my homework.
be friendly and helpful.	eg. I’ll help my friend with lessons.
be polite and kind.	eg. I’ll show good manners in class.
be courageous and strong.	eg. I’ll take part in the English singing contest.

Part 2: Courage
Of course it’s going to take a lot of courage t keep your promise. Courage is challenging yourself to do something even though you think it might be hard. For each promise, find out two or three ways to help you keep it. For example, if you think that Being Honest is the hardest promise for you to keep, one of the ways might be “Tell people about my promise so that I won’t break it”.
Part 3: Confidence
Confidence is believing that you have the skills to do something. Do you have a beautiful singing voice? Are you a good painter? There are all talents that can make you feel good, as well as the people around you. Once you’ve decided what your special skill is, think about how you can use your skill to make your corner of the world a better place. If you’re good at art, try painting a picture on an old wall in your school (of course, make sure you’re allowed).
小题1:According to the writer, a hero should be           .
A. beautiful                  B. confident              C. good-looking
小题2:If your promise is “I’ll show good manners in class,” you’re trying to be           .
A. useful                   B. polite                 C. brave
小题3:What is the most important thing to build your character?
A. Do your best to keep your promise.
B. Write down your promise.
C. Look at your promise every day.
小题4:If someone asks you for help, you will be               .
A. honest                   B. strong                 C. helpful
小题5:What can we learn from the passage?
A. A good painter can have confidence.
B. It’s hard to make your promise.
C. You can build your character with the help of others.

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We have always been interested in the moon.2000 years ago, people already knew that the moon moves around the earth and where it would be in the sky at different times of the year. At that time, everything about the moon was learned by watching it carefully in the sky.
When scientists could use telescopes to study the moon more closely, their ideas began to change. They could see the moon was made of rocks. Most scientists thought moon rocks would be different from those on the earth. This was because they believed the moon had once been a planet that had been caught in the earth’s gravity millions of years earlier.
In 1969, moon rocks werefinally brought to the earth and studied. Much to their surprise, scientists found that, except for water, the moon and the earth were made of the same things. Once again new ideas were needed for this new information.
After years of study, most scientists now think that the moon was once part of the earth. They believe very early in its history, maybe 4 billion years ago, something about the size of Mars hit the earth. This sent billions of rocks into space around our planet. These rocks slowly joined together and after many years became the moon.
In the future, even thought our ideas about the moon may change again, we will still be interested in it.
小题1:2000 years ago, people already knew_____.

A．the earth moved around the moon

B．the moon and the earth were made of the same things

C．the moon was made of rocks

D．the moon moves around the earth

小题2:Before 1969, most scientists thought the moon was_____.

A．part of the earth billions of years earlier

B．older than the earth

C．a planet caught by the earth’s gravity

D．made of the same things as the earth

小题3:After years of study, most scientists now think_____.

A．the earth was once part of the moon

B．the moon was once part of the earth

C．something about the size of Mars will hit earth in the near future

D．a lot of rocks will slowly join together to become the other moon

小题4:From this passage we can learn that_____.

A．scientists in the past were not clever

B．scientists are so clever that they know everything

C．new information brings new ideas

D．we now everything about the moon

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New Energy in the Twenty-first Century Energy from the wind.
All over the world, people use the power of the wind. It is a clean source of energy, and there is lots of it. But if the wind does not blow, there is no wind energy.
Energy from the water
When water moves from a high place to a lower place it has the power to make electricity. In Britain, waterpower produces enough energy to power a town with 40000 people. Waterpower gives energy without pollution, but people have to build dams(大坝) to use this kind of power, and building dams is very expensive.
Energy from the earth
There is heat in the rocks under the earth. Scientists use the heat to make geothermal(地热的) San Francisco gets half of the energy it needs from geothermal power. This kind of energy is cheap, but it is only possible in a few places in the world.
Energy from the sun
Solar panels(镶板) on the roofs of houses and buildings can turn energy from the sun into electricity. These panels can create enough energy to heat the whole house during winter. Solar power is clean and plentiful, but when the weather is bad, it can’t produce power.
阅读上面信息，完成下列表格。

	Advantages	Disadvantages
Wind power	Clean energy. There is a lot of it.	小题1:__________________________
Waterpower	小题2:_________________	It is expensive.
Geothermal Power	小题3:___________________	It is only possible in a few places in the world.
Solar power	Clean and plentiful.	小题4:___________________________

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AN ice ball shoots across the night sky, lighting up its path along the way, like a flying sun.
Ancient humans were afraid of the sight of comets(彗星). Many cultures believed that comets were messages sent by gods, and people thought these messages were warning signs for bad behavior. But today science and technology give us a better understanding of comets.
Last week, comet Ison ended its million-year-long journey as it flew straight toward the sun, melting most of the comet. It was hoped that comet Ison would survive this trip around the sun. Because once it got near Earth, it would have produced a great show of lights for us.
In ancient times, the coming of comet Ison might have scared people. However, now we can track a comet’s journey in our solar system. We can also study what they’re made of. There is even a project to launch a spacecraft onto a comet to study them further.
Although from the sky they look like great giant fireballs, comets are a collection of gas, ice, dust and small rocks. As a comet goes into our solar system, the sun’s solar winds blow some of the dust and gas away, giving the comet a tail. The average size of comets is about 10 kilometers in diameter(直径). But amazingly, their tails can be 150 kilometers long! Comet Ison’s diameter was about 5 kilometers.
Today, people don’t fear comets as much as they did before. Western countries have even developed and old tradition. When people see a comet or meteoroid(流星) shooting across the sky, they call it a shooting star, People who get the chance to see one get to make a wish. It is a tradition that lives on today.
小题1:In ancient times, people thought comets were _____.

A．warning signs sent by gods

B．lucky signs for good behavior

C．great shows of lights

D．flying suns

小题2:We can tell from the third paragraph that comet Ison ___.

A．finished its long journey to Mars

B．survived its trip around the sun

C．has reached the Earth

D．was melted by the sun

小题3:When a comet travels near the sun, some of the __ will be blown away by the solar winds.

A．gas and dust	B．ice and rocks
C．dust and rocks	D．rocks and tail

小题4:According to the last paragraph, what tradition lives on today?

A．Being scared by comets and meteoroids.

B．Making a wish when seeing a shooting star

C．Launching spacecrafts onto comets to study them further.

D．Having a better understanding of comets

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Cities and towns in 35 countries took part. The year 2012 saw 6,950 towns and cities in more than 152 countries took part in Earth Hour movement. Last year 7,000 towns and cities in more than 154 countries took part in Earth Hour. This year, WWF is calling for people across the world to take part in Earth Hour 2014 – the biggest switch-off in history.
For the eighth year, people are being asked to turn off their lights for one hour to call attention to the issue of climate change. The WWF’s organizers say climate change is one of the greatest threats(威胁) facing wildlife and nature. They also say when it comes to save energy and money, big changes start with small steps like turning out the lights.
Earth Hour supporter Jamie Oliver has some great ideas of his own for helping the environment: “We can all make simple changes to help, like always choosinghigher-welfare(规模化养殖的) meat, and even trying to have a couple of meat-free days a week. More little steps, such as taking a shower instead of a bath, leaving the car behind and walking to work, not leaving electrical appliances on standby（备用的） and so on are the beginning of a low carbon lifestyle and a healthier world.
This year, Earth Hour is asking people to take the movement “beyond the hour”. Earth Hour is a call to stand up and get involved. We hope everyone will join us in turning off for a brighter future.
小题1:What’s the main idea of Paragraph 1?

A．The first Earth Hour movement

B．History of Earth Hour and its tasks.

C．Earth Hour has changed our lives.

D．Everyone can make a difference.

小题2:Which of the following is Wrong?

A．The first Earth Hour started in 2007 in Australia.

B．This year people are expected to turn off their lights for over one hour.

C．For seven years , Earth Hour calls for action on climate change.

D．7,000 towns and cities in over 154 countries took part in Earth Hour 2013.

小题3: According to the passage, all the following are small steps we can take Except_____.

A．Turning off our lights in Earth Hour.

B．Taking a bath instead of a shower

C．Going to work on foot instead of by car

D．Choosing higher-welfare meat

小题4:The best title of the passage is_________________.

A．Climate Change: the greatest threat

B．WWF: a global charity

C．Earth Hour: small steps big difference.

D．Climate Action: a global call

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