Why do plants grow in some places and not in ...

Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all? To grow, plants need several things. One is warmth. In very cold places almost nothing grows. That’s why dry deserts everywhere are almost not covered by trees or grass.

Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The paints here have only the soil found between thecracksof the stones to grow in.

Another thing plants must have before they can grow is food.

What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won’t. Even if the weather is warm enough and we water the plants each day, many of them will die because the sand on this beach has almost no food for plants.

1.

A. two　　 B. three　　 C. four　　 D. five

2.

A. 缝隙　　 B. 表面　　 C. 夹层　　 D. 底部

3.

A. easy　　 B. difficult

C. impossible　　 D. important

4.

A. there isn’t enough sunlight

B. there is too much water

C. it is too crowed there

D. it has little food for plants

5.

A. science　　 B. history　　 C. travel　　 D. math

九年级英语阅读理解中等难度题查看答案及解析

Why do plants grow in some places and not in others? Why does some land have so much growing on it， while other land has almost no plants growing on it at all?

To grow， plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the Earth only a few unusual plants can grow. That's why dry deserts(沙漠) everywhere are almost not covered by trees or grass.

Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here have only the soil(土壤) found between the cracks of the stones to grow in.

Another thing plants must have before they can grow is food.

What will happen if we try to make things grow on the sandy beach? A few plants， such as beach grass， will grow in sand， but most plants won't. Even if the weather is warm enough and we water the plants each day， many of them will die because the sand on this beach has almost no plant food.

1.The passage can most probably be found in 　　　　　　 .

A. a science book　 B. a newspaper

C. a magazine　 　　 D. a report

2.Plants need 　　　　　 things to grow well according to the passage.

A. two　　　　　 B. three　　 C. four　　 D. five

3.The reason why most plants can’t grow on the sandy beach is that　　　　　 .

A. there isn’t enough sunlight

B. there is too much water

C. it is too crowded there

D. it has little food for plants

4.Which of the following is true?

A. Beach grass can hardly grow in sand.

B. Plants need food to help them grow.

C. Plants want a place where their flowers can come out.

D. Dry deserts everywhere are almost covered by trees or grass.

九年级英语阅读理解中等难度题查看答案及解析

Do you know why so many animals do not stay in one place? Birds, fish and other animals move from one place to another place at a certain time. They move for different reasons: most of them move to find food more easily, but others move to get away from places that are too crowded.

When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration is probably the migration of fish, which is called “salmon”(鲑鱼). This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is old, it will return to its birthplace in fresh water. Then it gives birth and dies. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea.

Recently, scientists have studied the migration of a kind of lobster(龙虾). Every year, when the season of the bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where they go. So, sometimes we know why humans and animals move from one place to another place, but at other times we don’t. Maybe living things just like to travel.

1.The reason for most of the animals to move is ________.

A. to get away from un-crowded places　　　 　　　 B. to find their own parents

C. to want to kill themselves　　　　　　　 　　　 　 D. to find food more easily

2.Where does young salmon(鲑鱼) spend its life?

A. In fresh water.　　　 　　 B. In salt water.　　

C. In mountain homes.　　 D. In its birthplace.

3. When do the lobsters(龙虾) begin to move another place?

A. When their homes become too crowded.　　

B. When the season of the bad weather arrives.

C. When they want to give birth.　　　　　　　　

D. When their food is eaten up.

4. The underlined word migration in the passage means ________.

A. 迁徙　　　　　　　　 B. 习性　　　　　　　

C. 运动　　　　　　　　 D. 寻觅

九年级英语阅读理解极难题查看答案及解析

—Why do you want to settle down in Shenzhen?

—Because the city is beautiful. Trees and plants grow everywhere.

A.here B.here and there C.over there

九年级英语单选题中等难度题查看答案及解析

The best known vegetable in the world is the potato. It grows in many places and does not need rich soil like many other crops. But until four hundred years ago the potato was not known to the Europeans. But today it’s one of the main foods in Europe. About half of the world’s potatoes are grown in Europe.

In France the potato was not grown for a long time. Here is a story about Louis. In 1778 he saw some potato flowers for the first time. He liked them so much that he picked one and put it in his buttonhole. He was interested in the flowers not the potatoes themesleves.

根据短文内容判断对错。

1.Potatoes are grown and eaten in Europe.

2.The potatoes are grown only in the rich soil.

3.Louis was the first man to eat the potato.

4.At first the Europeans grew potatoes to eat.

5.Louis liked the potato flowers better than the potatoes.

九年级英语阅读判断中等难度题查看答案及解析

We know that many animals do not stay in one place. Birds,fish and other animals move from one place  to another at a certain time. They move for different reasons: most of them move to find food more easily,but others move to get away from places that are too crowded.

When cold weather comes,many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration（迁移）is probably the migration of the fish which is called “salmon”.This fish is born in fresh water but it travels many miles to salt water.There it spends its life. When it is old,it returns to its birthplace in fresh water. Then it gives birth and dies. In northern Europe, there is a kind of mouse. They leave their mountain homes when they bccome too crowded. They move down to the low land. Sometimes they move all the way the seadide,and many of them are killed when they fall into the sea.

Recently, scientists have studied the migration of kind of lobster（龙虾）.Every year, when the season of the bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody know where they go.

So,sometimes we know why humans and animals move from one place to another,but at other times we don’t. Maybe living things just like to travel.

1..Most animals move from one place to another at a certain time to _____

A.give birth        B.enjoy warmer weather   C.find food more easily

2.The fish called “salmon”spends a long time in____

A.salt water        B.rivers                 C.fresh water

3.The mice in northern Europe move when_____

A.they give birth   B.the place gets too crowded

C.they haven’t enough food

4. The lobsters move_______.

A.to the fresh water   B.at a certain time  C.to find more food

5.What is the main idea of the passage?

A.Animals move to find food more easily.

B.The migration of the fish called“salmon”is the most famous migration.

C.Sometimes we know why and how living things move from one place to another,but sometimes we don’t.

九年级英语选择题困难题查看答案及解析

We know that many animals do not stay in one place . Birds, fish and other animals move from one place to another at a certain time. They move for different reasons: most of them move to find food easily, but others move to get away from places that are too crowed.

When cold weather comes, many birds move to warmer places to find food. Some fish give birth in warm water and move to cold water to feed. The most famous migration(迁移) of the fish, which is called “salmon(大马哈)”. This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is old, it returns to its birthplace in fresh water. Then it gives birth and dies there. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowed. They move down to the low land. Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea.

Recently, scientists have studied the migration of a kind of lobster(龙虾). Every year, when the season of bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where they go.

So, sometimes we know why humans and animals move from one place to another, but at others times we don’t. Maybe living things just like to travel.

九年级英语其他题中等难度题查看答案及解析

We know that many animals do not stay in one place. Birds, fish and other animals move from one place to another at a certain time. They move for different reasons: most of them move to find food more easily, but others move to get away from places that are too crowded.

When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration (迁徙) is probably the migration of fish, which is called “salmon”(蛙鱼). This fish is born in fresh(淡的) water but it travels many miles to salt water. There it spends its life. When it is old, it returns to its birthplace in fresh water. Then it gives birth and dies. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea.

Recently, scientists have studied the migration of a kind of lobster (龙虾). Every year, when the season of the bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where they go. So, sometimes we know why humans and animals move from one place to another, but at other times we don’t. Maybe living things just like to travel.

1. Most animals move from one place to another at a certain time to _______.

A. enjoy warmer weather

B. find food more easily

C. find beautiful places

D. get away from crowded places

2. The underlined word “There” in the second passage means “___________”.

A. in cold water                B. in warm water

C. in salty water               D. in fresh water

3. Why do the lobsters get into a long line to move?

A .It’s a safe traveling way.

B. The weather is bad.

C. It is still unknown to us.

D. They just don’t want not to be too crowded.

4. The passage is mainly about ________________.”

A. the migration of animals

B. the migration of fish

C. the travel of animals

D. the secret of nature

九年级英语阅读理解困难题查看答案及解析

You’re not interested in this place. Why not ____________ other places?

A. consider visiting

B. consider to visit

C. considering visiting

九年级英语单项填空中等难度题查看答案及解析

Young people may grow quickly in some ways and slowly in 　　　 .

A. the other　　 B. some other　　 C. others　　 D. these others

九年级英语单选题中等难度题查看答案及解析