The machine can absorb the energy ______ the ...

The machine can absorb the energy ______ the sun.

A. of　　 B. from　　 C. in　　 D. about

九年级英语单选题困难题查看答案及解析

The sun gives energy and the earth receives the sun’s energy. The way the earth interacts with the sun’s energy can be displayed in a picture called the earth’s energy budget（预算）. It displays the sun’s energy that reaches us and how much of that energy is taken in and how much is thrown back by the earth and its air. Once the energy reaches the earth, some of it is taken by land and oceans. The amount of energy that is taken in influences the temperatures. The energy that is not taken in is thrown back to space.

Generally, the amount of energy coming in is equal to the amount of energy going out. So, we say the earth’s energy budget is balanced. If more energy was coming in than was going out, the earth’s temperature would increase. On the other hand, if too much energy is thrown back, and not taken in, we would see the earth’s temperature dropping.

Of all of the sun’s energy that hits the earth, about 67% is taken in by the land, oceans, air and clouds and about 33% is thrown back into space.

1.The picture above shows us how ________ hits the earth.

A. the high temperature            B. the heavy rain                C. the sun’s energy

2.In the 2nd paragraph, the underlined phrase “equal to ” means “______”.

A. less than                    B. the same as                 C. more than

3.Picture ______ shows us the main idea of the last paragraph.

　　　 A.     　　 B.         C.

4.If too much energy is thrown back, we will feel ______on the earth.

A. cold                        B. hot                        C. warm

5.The amount of energy that is _______ influences the temperatures.

A. well balanced

B. thrown back

C. taken in

九年级英语阅读理解极难题查看答案及解析

The energy from the sun and wind is very cheap and it will never 　　　　 .

A. come out　　　　　　　　 B. put out

C. carry out　　　　　　　　 D. run out

九年级英语单项填空中等难度题查看答案及解析

The ________ from the sun and wind is very cheap and it will never run out.

A. energy　　 B. noise　　 C. heat　　 D. light

九年级英语单选题简单题查看答案及解析

The energy from the sun and wind is very cheap and it will never ____________.

A. come out 　　　　 　 B. put out

C. carry out　　　　　　 D. run out

九年级英语单项填空中等难度题查看答案及解析

The energy from the sun and wind is very cheap and it will never ____________.

A. come out　　　　 B. put out　　　　　　 C. carry out　　　　　　 D. run out

九年级英语单项填空中等难度题查看答案及解析

The human body is a living machine, and, like all machines, it needs “fuel” to supply it with energy. This is provided by the food we eat. But how much do we need to stay healthy?

The energy value of food is usually measured in calories(卡). A calorie is the amount of heat required to raise the temperature of 1 kg of water by 1℃. The number of calories people need per day is different, as the picture shows. Also, the number of calories you use at any one moment normally depends on the activity you are in. For example, you need more calories for standing than for sitting, more for running than for walking, and so on.

The energy in food is in the form of three kinds of chemical materials—carbohydrate（碳水化合物）, protein（蛋白质） and fat. Carbohydrate provides 3.8 Cal /gm of the energy, protein 4.0 Cal/gm, and fat 8.8 Cal/gm. Each food contains different amounts of these materials, as the round pictures show.

(P= protein      C= carbohydrate    F=fat)

1.How many calories are needed to raise the temperature of 5kg of water from 35℃ to 90℃?

2.Which of the following contains the most amount of calories?

3.Who needs the most amount of calories each day?

4.Which of following is True?　　

5.This passage mainly tells us ______.

九年级英语阅读理解中等难度题查看答案及解析

（2016江苏盐城）All living things need energy to live and grow. This energy comes first from the sun. Plants use water and sunlight to make their own food. Animals can not make their own food, and they eat plants. Other animals then eat the plant eaters.

A food chain shows what eats what. It might show that zebras eat grass and then lions eat zebras.

Lions also eat other animals. Zebras eat other kinds of plants. So it takes more than one food chain to show how lions and zebras get their energy.

A food web shows how food chains work together. From it we can see how energy moves from plants to animals.

Plants and animals that live in hot, dry deserts depend on water as well as food. Creosote bushes have small leaves that hold water. Their seeds provide food and water for kangaroo rats. Kangaroo rats don’t need to drink water. They get all the water they need from the plants they eat. Kangaroo rats keep cool by coming out only at night to look for food. Ringtail cats also come out only at night. Ringtail cats hunt and eat kangaroo rats. Coyotes eat both the kangaroo rats and the ringtail cats.

Nothing is wasted in a food wed. Vultures eat dead animals. Vultures are scavengers. Scavengers do not hunt and kill other animals to get food. They eat animals that are already dead. When a ringtail cat or a coyote dies, it makes a meal for the vultures. Scavengers do an important job in keeping the environment clean.

1.Where does the energy that living things need first come from?

A. Animals.　　 B. Plants.　　 C. The sun.　　 D. Plant eaters.

2.Why do ringtail cats come out only at night?

A. Because they are afraid of coyotes.　　 B. Because they are shy animals.

C. Because it is very hot in the daytime.　　 D. Because they can eat kangaroo rats.

3.What kind of animal can be placed in the empty box of the picture?

A. Kangaroo.　　 B. Vulture.　　 C. Cat.　　 D. Zebra.

4.Which of the following is NOT TRUE according to the passage?

A. Lions eat different kinds of animals.　　 B. Plants are on the top of the food chain.

C. Scavengers can keep the environment clean.　　 D. Some animals get water from the plants they eat.

5.What’s the best title of the passage?

A. Web of life　　 B. Things that we eat

C. Food in the desert　　 D. The place where food is from

九年级英语阅读单选中等难度题查看答案及解析

In the modern age, human society runs on energy. Most machines need electricity to operate. Humans cannot live without electricity even a single day in their daily life and work. They have many different ways to create electricity. But some ways are harmful to the environment.

For example, fossil fuels (化石燃料) are the most common kind of energy.They include coal, oil, and natural gas. First, people have to dig them from the ground. This can sometimes harm the environment. However, scientists are creating cleaner and better ways to do that these days. So the environment is not harmed as much as before. But when people burn these fossil fuels, they can give off a lot of harmful gases, which is considered to be one of the greatest causes of global warning. This might harm the environment.

Tidal (潮汐) energy is another way to make electricity. This uses the ocean tides to make electricity. But some kinds of tidal energy can kill many fish and other sea animals. Also dams (大坝) can create lots of clean energy. But dams create lakes and change the way that rivers run. So they can do great harm to the balance of nature around the lakes and along the rivers.

Nuclear (核) energy is a very powerful form of energy. It is cheap. It is also very clean. But many people are afraid of it because it uses radioactive materials. Also, there have been some very serious accidents in the past which caused great harm to human and nature. But the technology is much better these days. so many countries are starting to use nuclear energy more.

1.In Paragraph I the underlined part “human society runs on energy” means “______”.

A.humans in the society waste much energy B.people use energy to make the world work

C.our society is full of varied kinds of energy D.humans cannot run fast without energy

2.According to the passage, which of the following is TRUE about fossil fuels?

A.They are dug from the ground. B.They are considered expensive.

C.They hardly harm the environment. D.They are not widely used in the world

3.From the passage, we know that tidal energy can ______.

A.cause serious accidents B.change the way that rivers run

C.give off a lot of harmful gases D.kill many living things in the ocean

4.Many countries start to use nuclear energy more because ______.

A.it’s a common kind of energy B.people are not afraid of it now

C.it’s cheap, clean and safer than before D.people can’t live without it

5.The passage is probably in the part of ______ in a newspaper.

A.health B.science C.culture D.sports

九年级英语阅读单选困难题查看答案及解析

Our sun is a star. Like all stars, it is a mass of （ 一大团）very hot gases. The sun’s energy doesn’t come from burning fuels（ 燃料 ）. The sun’s energy comes from its nuclear fusion.( 核聚变 )

How big is the sun? Its diameter, the distance across its center, is quiet huge. That’s more than 100 times the diameter of Earth. The sun’s volume is more than a million times the volume of the Earth. Another way to say this is that the sun could hold one million Earths inside it.

The sun has different layers of gases. Each layer mixes into the next, like the layers of Earth’s atmosphere.（ 大气 ） Most of the sun’s mass is in its center. It is also very hot. Almost all fusion takes place in the center.

The sun creates energy in the form of heat and light. Even though the sun is a ball of gases, it is made up of several layers. The main layers are the center. There are also other layers. The sun produces hug energy. Its energy mainly comes from its center. The sun is the source of most of the energy on Earth. Without the sun, there will be no living things on earth, including human beings.

1.What are the gases of the sun like?

A. Very hot

B. Very bright

C. All of the above

2.The sun’s energy comes from 　　　　 .

A. X—rays

B. nuclear fusion

C. layers of gases

3.The diameter of the earth is about 6300 km. How about that of the sun?

A. About 6300km

B. About 63000km

C. About 630000km

4.What’s the meaning of the underlined word “ volume” according to the passage?

A. 形状　　　　　　　　　　 B. 面积　　　　　　　　　　 C. 体积

5.What’s the last two paragraphs about?

A. The sun has many layer.

B. Where the sun energy is from.

C. How the sun energy is made.

九年级英语阅读理解困难题查看答案及解析