Clouds are made of small drops of water or ti...

Clouds are made of small drops of water or tiny pieces of ice. The water and ice in clouds come from the Earth ’s surface，especially from lakes，rivers，and oceans. Water on the surface is heated. It changes into a gas called water vapor(水蒸气). Water vapor goes up into the air.

The higher up you go，the colder the air gets. When water vapor gets cold，it changes back into drops of water. If it gets cold enough，the water changes to ice. When the drops of water and bits of ice are so small，you see the water and ice in the sky as clouds. Scientists who study weather divide clouds into three families. Three families are called high clouds，middle clouds，and low clouds.

High clouds are made of bits of ice. High clouds can be 5 miles or more above the Earth’s surface. Rain and snow do not fall from these clouds.

Middle clouds are made of drops of water. They form about 2 to 4 miles up in the sky. You can see through them，but you can’ t see the Sun and the Moon clearly because of them.

Low clouds are made of drops of water. Most low clouds are less than a mile high. Rain or snow usually falls from these clouds.

1.Where do the water and ice in clouds come from?

The water and ice in clouds come from____________.

2.When does the water vapor change back into drops of water?

When water vapor____________，it changes back into drops of water.

3.Why can’ t you see the sun and the moon clearly?

You can’t see the sun and the moon clearly because of _____________.

4.What does “It” refer to in the first paragraph?

It refers to______________.

5.Where does the rain or snow usually fall from?

Rain or snow usually falls from________________.

九年级英语填空困难题查看答案及解析

Many people keep small fish as pets. They keep them in a tank (水槽) of water. The tank is made of clear glass. People can look through it. They can see inside the tank and watch the fish.

The fish need room. They must not be crowded. Fish need oxygen to breathe. Fish get it from water in the tank. There must be enough water for all fish. So the size of the tank is important. In the tank many people put small plants that are good for fish. They give oxygen to the water. Plants help in other ways, too. Fish can nibble (轻咬) on the plants. They hide among the plants and sleep, lay eggs there. The plants need light. Most fish need light, too. The tank may be put near a window. It will get light there. Another place might be better, though. A window may let cold air in. The water in the tank may get too cold. The fish may die because cold water can kill them. So can hot water. The temperature must be just right. The fish must be kept in water all the time. Some fish can jump high. They may jump out of the tank. The tank should be covered. This keeps the fish from jumping out.

The fish need food and they should be fed every day. Giving them too much food is bad. The extra (额外的) food will fall to the bottom and make the water dirty. However, the fish should get just enough food. They should finish the food in 10 minutes. Nothing should be left. When this pens. the amount (数量) of food is right.

根据短文内容选择最佳答案。

1.The underlined word “oxygen” means in the passage “________” in Chinese.

A.烟雾 B.二氧化碳 C.氧气

2.A tank near the window may not be good for pet fish because ________.

A.no air can get in through the window

B.pet fish will jump out of the window

C.cold air may make the water too cold

3.The tank should be covered because ________.

A.some fish may jump out of the tank

B.the water may be dirty

C.it can keep the light away

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

A.A lot of water in the tank may cause pet fish to die.

B.The size of the tank is important to fish.

C.When people feed the fish, the food should be eaten in 10 minutes.

5.Which is the main idea of this passage ________.

A.It tells us why fish must be put in a glass tank

B.It tells us how people should keep their pet fish

C.It tells us what kind of plants is good for pet fish

九年级英语阅读单选中等难度题查看答案及解析

Many people keep small fish as pets. They keep them in a tank of water. The tank is made of clear glass. People can look through it. They can see inside the tank and watch the fish.

The fish need room. They must not be crowded. Fish need oxygen(O2) to breathe. Fish get it from water in the tank. There must be enough water for all fish. So the size of the tank is important.

In the tank many people put small plants that are good for fish. They give oxygen to the water. Plants help in other ways, too. Fish can nibble（轻咬）on the plants. They hide among the plants and sleep, lay eggs there.

The plants need light. Most fish need light too. The tank may be put near a window. It will get light there. Another place might be better, though. A window may let cold air in. The water in the tank may get too cold. The fish may die because cold water can kill them. So can hot water. The temperature must be just right.

The fish must be kept in water all the time. Some fish can jump high. They may jump out of the tank. The tank should be covered. This keeps the fish from jumping out.

The fish need food and they should be fed every day. Giving them too much food is bad. The extra（额外的）food will fall to the bottom and make the water dirty. However, the fish should get just enough food.

They should finish the food in 10 minutes. Nothing should be left. When this happens, the amount（数量）of food is right.

1.A tank near the window may NOT be good for pet fish because __________.

A. no air can get in through the window B. pet fish will jump out of the window

C. plants in the tank will grow too big D. cold air may make the water too cold

2.__________ is the least important to pet fish.

A. Water temperature B. Sunlight

C. The amount of food D. The size of the tank

3.Which of the following may cause pet fish to die?

A. Too little room for fish. B. The plants in the tank.

C. The light through the window. D. A lot of water in the tank.

4.The word “this” in the last paragraph refers to（指的是）___________.

A. giving pet fish too much food B. giving pet fish too little food

C. giving pet fish the right amount of food D. giving pet fish neither too cold nor too hot water

5.This passage mainly talks about _________.

A. why fish must be put in a glass tank B. how people should keep their pet fish

C. what kind of plants is good for pet fish D. how much food should be given to pet fish

九年级英语阅读单选中等难度题查看答案及解析

All of the following are traffic signs except ______.

A. SAVE WATER　　　　             B. STOP

C. NO PARKING　　　　　             D. DANGER ICE ON ROAD

九年级英语单项填空简单题查看答案及解析

As we all know, people couldn’t live without water. Some parts of our bodies are made of water. We depend on clean water to live every day.

However, we human beings are polluting water seriously. In some areas of China, people are still in great need of clean water. Dirty water is one of the world’s biggest health problems. It’s harmful to our health. When water from the rain and melting(融化) snow runs through roads, it picks up some dangerous chemicals and other things along the way. Many of the rivers are short of protections, so they are easy to be polluted by factories or animals’ waste.

World Water Day has grown to become one of the important dates since 1993. In 2013, World Water Day shares the topic of Water Cooperation(合作). If everyone tries their best to save and protect the clean water, our living conditions will be much better.

1.we know that people couldn’t live without _________ according to the first paragraph.

A. fire　　　　　 B. water　　　　 C. books D. language

2.Many of the rivers are easy to be polluted by __________.

A. animals 　　　　　　　　　　　　 B. human beings’ waste

C. fish　　　　　　　　　　　　　　　 D. factories or animals’ waste

3.he underlined phrases “pikes up ”in paragraph 2 means“______”.

A. 毁坏　　　　　 B.接送　　　　　　 C.带走　　　　　　 D.拾起

4.When　 has World Water Day become one of the most important dates?

A. since 1993. B. in 1993　　　 C. in 2013.　　 D. since 2013

5.Which of the following is　 NOT right?

A. Dirty water does harm to humans’health.

B. Human beings aren’t　 short of clean water.

C. The topic of 2013 World Water Day is Water Cooperation.

D. We should try our best to protect the clean water.

九年级英语阅读理解中等难度题查看答案及解析

As we all know, people couldn’t live without water. Some parts of our bodies are made of water. We depend on clean water to live every day.

However, we human beings are polluting water seriously. In some areas of China, people are still in great need of clean water. Dirty water is one of the world’s biggest healthy problems. It’s harmful to our health. When water from the rain and melting(融化) snow runs through roads, it picks up some dangerous chemicals and other things along the way. Many of the rivers are short of protections, so they are easy to be polluted by factories or animals’ waste.

World Water Day has grown to become one of the important dates since 1993. In 2013, World Water Day shares the topic of Water Cooperation. If everyone tries their best to save and protect the clean water, our living conditions will be much better.

根据短文内容，选择正确答案。

1.From the first paragraph, we know that people couldn’t live without _________.

A. fire　　　　　　　　　 B. water　　　　　　　　　 C. books　　　　　　　　　 D. language

2.Dirty water is ________ to our heath.

A. useful　　　　　　　　　 B. kind　　　　　　　　　 C. harmful　　　　　　　　　 D. cruel

3.Many of the rivers are easy to be polluted by __________.

A. schools　　　　　　　　　 B. factories or animals’ waste

C. fish　　　　　　　　　 D. human beings’ waste

4.What’s the topic of 2013 World Water Day?

A. Water and Food.　　　　　　　　　 B. City Water Protection.

C. Water Quality.　　　　　　　　　 D. Water Cooperation.

5.Which of the following is TRUE(对的)?

A. The clean water is enough in China.　　　　

B. We needn’t any clean water.

C. World Water Day started in 2013.　　　　　　

D. We should try our best to protect the clean water.

九年级英语阅读理解中等难度题查看答案及解析

What are your clothes made of? Are they made of cotton or wool? Some students in Shandong wear different things. Their clothes are made of discs(光盘) or old paper!

On October 7th, 36 students in Linyi, Shandong Province, wore beautiful clothes in a show. Their clothes were made of all kinds of things.

The show gave the students a chance to make things with their own hands. It also helped them learn to make good use of(利用) waste and not to throw everything away.

Students had lots of good ideas. Some found used things, like old clothes, to make the dresses.

“We hope to save energy. Our world is short of energy. So I don’t want to just throw old things away,” said Xie Jing at Linyi Art School.

Xie had more than 20 discs on her nice blue dress, she got them from her family and friends.

“Though the discs are old, I look very cool in them!” she said.

Song Dandan, a student from the school , looked like a farmer in her straw(稻草) coat and hat. She picked the straw from the fields and put them all together.

“I want to show what people wore in the past.” she said.

Du Yue made clothes for astronauts! She had white cloth all over her.

“I hope to wear it in space ( 太空) some day. I wish that I could walk on the moon!” she said.

1.The passage mainly talks about _______.

A.how to make clothes B.energy saving

C.how to look cool D.a special fashion show

2.The underlined word “short” in the sentence “Our world is short of energy.”　 has the same meaning as “short” in the sentence”______”

A.It’s only a short way from here.

B.The man is short.

C.I’m short of money. Can you lend me some?

D.She was here a short time ago.

3.The three students used all these things except(除了) ______ to made clothes.

A.discs B.straw C.old paper D.cloth

4.The show tells people ______ .

A.we should save energy B.they are clever

C.how to make use of old things D.A, B and C

九年级英语阅读单选简单题查看答案及解析

—Where are the ___? I want to drink water.

-- On the table that is made of ____.

A. glass, glasses　　　　 B. glasses, glasses

C. glass, glass　　　　 　 D. glasses, glass

九年级英语单项填空中等难度题查看答案及解析

Tiny plants and animals live all around us. We cannot see them because they are so small, but they are everywhere.

They live in the soil, the air, and in rivers and oceans. They grow on mountains and in caves. Some live in the ice at the north and south poles; some live where it is very hot. They are found throughout cities and in the country. They grow on other plants and animals. Some are even living on you, on your skin, hair, and inside your body, in your mouth, nose, and all through your intestines (肠).

These tiny plants and animals are called microbes. The word microbe is made from two other words: micro, meaning small, and bios, meaning life. So, microbe means small life.

Microbes have been on earth for a very long time. They may have been the first forms of life to be alive. Today there are more microbes in the world than all other living things.

People did not know microbes had existed (存在) long. They were too small for them to see.

But people did see many changes in their world—important changes. And they did not know what caused them. They saw food that they kept too long change color and begin to smell bad. They saw cuts and wounds grow red and painful and become infected. They saw old plants and leaves and trees crumble apart on the forest floor and disappear into the soil. Such changes were a natural part of the world, but people did not understand them. They did not know these changes were evidence (证据) of tiny plants and animals growing all around them.

1.Where do microbes live?

A. Only in the forest.,　　 B. Almost everywhere.

C. Most in very hot areas.,　　 D. Most in rivers and oceans.

2.The underlined phrase “crumble apart” in the last paragraph means “________”.

A. 开花结果,　　 B. 化为春泥,　　 C. 破裂腐烂,　　 D. 芳香四溢

3.According to the passage, which is the most suitable to complete the web below?

A. Microbes are very small,　　 B. Microbes are all around us

C. People can’t see microbes,　　 D. Food begins to smell bad

4.The best title of the passage could be ________.

A. The smallest life around us,　　 B. The origin (起源) of microbes

C. The place of microbes growing,　　 D. The evidence of microbes growing

九年级英语阅读单选简单题查看答案及解析

Tiny plants and animals live all around us. We cannot see them because they are so small, but they are everywhere.

They live in the soil, the air, and in rivers and oceans. They grow on mountains and in caves. Some live in the ice at the north and south poles; some live where it is very hot. They are found throughout cities and in the country. They grow on other plants and animals. Some are even living on you, on your skin, hair, and inside your body, in your mouth, nose, and all through your intestines (肠).

These tiny plants and animals are called microbes. The word microbe is made from two other words: micro, meaning small, and bios, meaning life. So, microbe means small life.

Microbes have been on earth for a very long time. They may have been the first forms of life to be alive. Today there are more microbes in the world than all other living things.

People did not know microbes had existed (存在) long. They were too small for them to see.

But people did see many changes in their world—important changes. And they did not know what caused them. They saw food that they kept too long change color and begin to smell bad. They saw cuts and wounds grow red and painful and become infected. They saw old plants and leaves and trees crumble apart on the forest floor and disappear into the soil. Such changes were a natural part of the world, but people did not understand them. They did not know these changes were evidence (证据) of tiny plants and animals growing all around them.

1.Where do microbes live?

A. Only in the forest.　　 B. Almost everywhere.

C. Most in very hot areas.　　 D. Most in rivers and oceans.

2.The underlined phrase “crumble apart” in the last paragraph means “________”.

A. 开花结果　　 B. 化为春泥　　 C. 破裂腐烂　　 D. 芳香四溢

3.According to the passage, which is the most suitable to complete the web below?

A. Microbes are very small　　 B. Microbes are all around us

C. People can’t see microbes　　 D. Food begins to smell bad

4.The best title of the passage could be ________.

A. The smallest life around us　　 B. The origin (起源) of microbes

C. The place of microbes growing　　 D. The evidence of microbes growing

九年级英语阅读单选简单题查看答案及解析