水是由氢原子和氧原子组成的。Water _______________________ h...

水是由氢原子和氧原子组成的。

Water _______________________ hydrogen and oxygen atoms.

九年级英语完成句子中等难度题查看答案及解析

The third preparatory（预备的） meeting for the Shenzhen First Session International Hydrogen and Fuel Cell（燃料电池） Leaders Summit was held on November 28 in Shenzhen, Guangdong Province. Nearly 100 experts attended it. The theme of the meeting was “Energy revolution（革命）, hydrogen (氢) changes the world”.

The meeting focused on the use and safety of hydrogen. In the meeting, experts discussed the direction of developing the hydrogen industry in China, the basic research of hydrogen, the development of hydrogen fuel cell technology, the new way to develop hydrogen and fuel cells in Shenzhen and so on.

Hydrogen is secondly energy. And it’s produced by primary energy (一次能源). For example, if we use some energy to produce electricity, then we can use the electricity to produce hydrogen. Hydrogen fuel cells have a few advantages. Firstly, they take only a few minutes to recharge(充电）. Secondly, they aren’t affected by temperature. Thirdly, hydrogen is very safe, safer than gasoline. At present, because of climate change, the world is developing this energy. It doesn’t contain carbon. Many countries have made a plan for hydrogen. Japan, Germany and the US are the leading ones. China has used different policies to encourage the development of hydrogen since 2016. It will become a kind of very important energy like electricity in the future.

Yu Yiping, chairman of the board of directors at Scientific Valley Group, said, “In order to prepare the summit, we’ve done lots of work. We went to other countries, such as Germany, France and the US, to learn experience. We also went to California, the US to learn about the hydrogen production, storage and transportation, and the construction of hydrogen refueling(补给燃料） stations.” Du Zheng, vice director of the Nanshan District Science, Technology and Innovation Bureau, said, “We are pushing forward the development of hydrogen in three ways: the planning of the hydrogen industry, the policy guidance and the building of some basic facilities, such as hydrogen refueling stations.”

1.What does Paragraph 2 mainly show us?

A.Who attended the meeting. B.How long the meeting lasted.

C.The topics discussed in the meeting. D.The decisions made in the meeting.

2.Why is hydrogen secondary energy?

A.Because it is very safe.

B.Because it is clean energy.

C.Because it was developed not long ago.

D.Because it can be made from primary energy.

3.How many advantages of hydrogen fuel cells are mentioned in Paragraph 3?

A.Two. B.Three. C.Four. D.Five.

4.Which of the following is TRUE?

A.Hydrogen has been widely used in people’s life in China.

B.The members of Scientific Valley Group once went to England for study.

C.The development of hydrogen will be pushed in four ways.

D.The Chinese government strongly supports the development of hydrogen.

九年级英语阅读单选中等难度题查看答案及解析

Everybody needs water. Everything16water，too. We use water17the bowls, the clothes, and18.We use water to plant trees, flowers and crops.19does all water come from? It20from clouds. Some of rain21into the ground. Many people get22from under the ground. Some rain water goes23the hills. It runs24lakes and rivers. Many people get it25.

8.A. on         B. into         C. going      D to go

九年级英语完型填空简单题查看答案及解析

1.On average，maybe we each have________fresh water in the world．

2.When we use telescopes or the weather is fine，we can see________stars from Earth．

3.According to the table above，we each can only have________because of pollution．

4.We are losing___________football fields every day because people cut down too many trees.

5.Which of the following is true according to the passage?

九年级英语阅读理解困难题查看答案及解析

Put a frog in the water and start heating the water. As the

temperature of the water rises, the frog is able to adjust its body

temperature. The frog keeps on adjusting with the increase in

temperature.

Just when the water is about to reach the boiling point, the frog is not able to adjust anymore.

At that point the frog decides to jump out.

The frog tries to jump but is unable to do so. because it loses all its strength in

adjusting to the water temperature.

Very soon the frog dies. What kills the frog?

Many of us would say the boiling water.

But in fact, what kills the frog is its own inability to decide when it has to jump out.

We all need to adjust to people and situations, but we need to be sure when we need

to adjust and when we need to face.

There are times when we need to face the situation and take the proper action.

If we allow people to exploit us in body, mind, emotion or money, they will continue

to do so. We have to decide when to jump. Let us jump while we still have the strength! So, we must think of danger in times of safety and always be prepared for the worst.

1.What does the underlined word “adjust” in the first paragraph mean in Chinese?

A. 整理　　 B. 调整　　 C. 整顿

2.What kills the frog?

A. The boiling water.

B. Its own ability to adjust its body temperature.

C. Its own inability to decide when it has to jump out.

3.What does the writer really want to tell us?

A. We must think of danger in times of safety.

B. We should not put the frog in the boiling water.

C. The frog is too stupid to know how to protect itself.

九年级英语阅读单选中等难度题查看答案及解析

（题文）

A. I will water the plants.

B. Tina will water the plants.

C. Both Tina and I will water the plants.

九年级英语听句子或对话判断中等难度题查看答案及解析

We all know that we need water to live. Up to 75% of our bodies is water and we need to drink water every day to be healthy! So what will happen to the Earth’s water if global warming （全球变暖）gets worse?

About 71% of the Earth’s surface is covered with water. When the temperature of the Earth rises, the temperature of the water rises, too. Higher water temperatures will kill the underwater plants and tiny fish. But it’s not just the fish! Higher temperatures also have an influence on animals on land. Some scientists think that because of global warming, two thirds of the world’s polar bears will never be seen on our planet by 2050.

Global warming makes the weather change, too. In some places, there will be less rain. This will cause deserts to be larger. In other places, the rain will become very strong and heavy, so we will have less farmland and not enough food for humans.

Global warming is a big problem. But we can help by making small changes like turning off the water, lights, and TV when we aren’t using them!

1.How much of the Earth’s surface is covered with water?（不超过5个词）

________________________________________________________________________

2.What will happen to the underwater plants and tiny fish when water temperatures get higher?（不超过10个词）

________________________________________________________________________

3.What small changes can we make to help solve the problem of global warming?（不超过15个词）

________________________________________________________________________

九年级英语回答问题简单题查看答案及解析

Hawaii is famous for its beaches. Every year water sports, especially surfing and water skiing attract many tourists to the island.

Hawaii has been a magical name to people who like to travel for many years. People on both sides of the Pacific Ocean（太平洋） in Japan and in America, dream of seeing these beautiful islands in the middle of the ocean. In the tropical（热带的） lands, the sun drops like a ball of golden glow(落日余晖) that light the sky in the quiet water.

People often have a quiet, enjoyable time walking along the water. The scenery here is not very different from the exciting beauty that greeted the first tourists to these islands centuries ago. They came in canoes not much bigger than small boats.

They found the beautiful white sand beaches and the waving palm trees（棕榈树）, but there were no grand hotels like the ones we see today. The first people came to Hawaii nearly two thousand years ago, but skyscraper（摩天大楼） hotels were only built in the last 25 years. Now planes make it possible to fly to Hawaii for a weekend from Tokyo or San Francisco.

No matter where people come from, they really want to see the earliest beauty of Hawaii. They want to see the lovely beaches and the mountains which are almost hidden by the tall hotels.

1. What’s Hawaii famous for?

A. The beautiful beaches.　　 B. the tourists to the island.

C. The waving palm trees.　　 D. Surfing and water skiing.

2.What does the sun drop like in the tropical lands?

A. The sea.　 B. A ball of golden fire.

C. A glow.　　 D. The quiet water.

3.When did the first people come to Hawaii?

A. In 1987　　　　 B. About twenty-five years ago.

C. In 1012.　　　　 D. About two thousand years ago.

4.The beauty of the islands _______ for centuries.

A. has changed

B. has greeted the first tourists

C. has remained nearly unchanged

D. has been the same

5. Which is true according to the passage?

A. People really want to see the earliest beauty of Hawaii.

B. People often have a quiet, unhappy time walking along the water. C

C. People only in Japan dream of seeing the beautiful islands.

D. People found the beautiful red sand beaches in Hawaii.

九年级英语阅读理解中等难度题查看答案及解析

Saving water is an important part of going green. As water becomes less and polluted more, conservation(保护)becomes more and more important. The less water you use, the less wastewater will end up in our rivers and lakes. Wasting water means that more water needs to be treated and cleaned, a process that requires quite a lot of energy.

As it is said above, cutting down on water usage is one of the most important things you can do for your local environment and the planet as a whole. That is why more green households are going blue: cutting down their water footprint by conserving and harvesting(收获)water.

It may seem like a big concept, but going blue starts with small changes that everyone can make. Something as simple as turning off the tap while you brush your teeth can save a lot of water. Wash your fruit and vegetables in a bowl rather than under a tap to save even more. Make sure that the taps are fully turned off every time you step away from the sink or the shower - all those little drips can add up to a lot of water waste.

Another way of reducing your water footprint is reducing your dependence on the main water supply. Rainwater harvesting can meet a lot of your home's water needs. Many of us already practice rainwater harvesting in a small way. Collecting water from your gutters(檐沟)is a great way to keep your garden green without running the sprinkler(洒水器).

1.The underlined word "green" means 　　 in this passage.

A.未成熟的　　　　 B.环保　　　　　　 　 C.嫉妒　　　　　　 D.健康的

2.According to the passage, which is NOT the reason that people should save water?

A. Treating wastewater needs much energy.

B. The water on the Earth is becoming less and less.

C. The water on the Earth is becoming polluted more.

D. Rainwater harvesting can meet a lot of your home's water needs.

3.According to the passage, all of these can be used to save water except　 　　　 .

A. washing fruit and vegetables under a tap

B. using a bowl to wash your fruit and vegetables

C. making sure taps are fully turned off all the time

D. turning off the tap every time while brushing your teeth

4.From the passage. we can know that 　　 .

A. we can get enough water by harvesting

B. most people pay no attention to saving water

C. we can practice rainwater harvesting in a small way

D. harvesting water is more necessary than conserving it

九年级英语阅读理解中等难度题查看答案及解析

Saving water is an important part of going green. As water becomes less and polluted more, conservation (保护) becomes more and more important. The less water you use, the less wastewater will end up in our rivers and lakes. Wasting water means that more water needs to be treated and cleaned, a process that requires quite a lot of energy.

As it is said above, cutting down on water usage is one of the most important things you can do for your local environment and the planet as a whole. That is why more green households are going blue: cutting down their water footprint by conserving and harvesting (收获) water.

It may seem like a big concept, but going blue starts with small changes that everyone can make. Something as simple as turning off the tap while you brush your teeth can save a lot of water. Wash your fruits and vegetables in a bowl rather than under a tap to save even more. Make sure that the taps are fully turned off every time you step away from the sink or the shower — all those little drips can add up to a lot of water waste.

Another way of reducing your water footprint is reducing your dependence on the main water supply. Rainwater harvesting can meet a lot of your home’s water needs. Many of us already practice rainwater harvesting in a small way. Collecting water from your gutters (檐沟) is a great way to keep your garden green without running the sprinkler (洒水器).

1.The underlined word “green” means ______ in this passage.

A．嫉妒             B．环保             C．未成熟的         D．健康的

2.According to the passage, which is NOT the reason that people should save water?

A．Treating wastewater needs much energy.

B．The water on the earth is becoming less and less.

C．The water on the earth is becoming polluted more.

D．Rainwater harvesting can meet a lot of your home’s water needs.

3.According to the passage, all of these can be used to save water except ______.

A．washing fruit and vegetables under a tap

B．using a bowl to wash your fruit and vegetables

C．making sure taps are fully turned off all the time

D．turning off the tap every time after brushing your teeth

4.Which of the following is the best title of this passage?

A．Save Water by Turning off the Tap

B．How to Treat and Clean Wastewater

C．Keep Your Garden Green with Rainwater

D．Save Water Starting with Small Changes

5.From the passage, we can know that_____.

A．we can get enough water by harvesting

B．most people pay no attention to saving water

C．we can practice rainwater harvesting in a small way

D．harvesting water is more necessary than conserving it

九年级英语阅读理解中等难度题查看答案及解析