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 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 there.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 bad weather arrives,the lobsters get into a long time 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.

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

A.give birth                                              B.enjoy warmer water

C.find food more easily                             D.find beautiful places

The mice in northern Europe move when _________.

A.they give birth                                       B.the weather is bad

C.the place gets too crowded                      D.they haven’t enough food

The lobsters move _________.

A.to the fresh water                                          B.to the deeper sea

C.at a certain time                                     D.to find more food

The ocean contains many strange and surprising creatures. One such creature is the puffer fish. This very strange fish is probably the most poisonous creature in the ocean. The poison that this fish produces is 275 times more poisonous than the chemical which is usually used to kill rats.

The puffer fish gets its name from the way the fish protects itself from enemies. Whenever it is attacked, the fish blows up its body to three times bigger than its normal size!

Another strange thing about this fish is the fact that it can swim like other fish. Because it does not have bones like other fish, the puffer fish can only move slowly through the water as it is carried by waves.

The puffer fish also has funny teeth. These teeth stick out of the fish’s mouth and are used by the fish to open the shells of the creatures that live on the ocean floor.

This strange, ugly, and very poisonous fish is actually a very expensive kind of food in Japan. The Japanese call this fish “fugu”, and people have been known to pay $150 per person to eat a fugu meal (usually eight servings)!

Very brave people want to eat the most poisonous part of the fugu fish on purpose. They think that this part of the fish tastes the best! Strict laws have been passed to control restaurants which serve fugu; however, quite a few people have still died from eating fugu. Almost 200 people have died over the past 25 years.

When people eat fugu poison, they do not die on the spot. First, they feel a strange tickle on their lips and in their mouth. Then they can not feel anything with their fingers. Finally, they cannot move or speak. Death follows when they can no longer breathe. The poison may take only a few minutes or up to six hours to kill a person. There is no known cure for fugu poisoning.

According to the passage, the puffer fish       .

       A. is probably the most poisonous creature in the world

       B. is generally considered to be the strangest fish in the ocean

       C. is slightly more poisonous than the chemical used to kill rats

       D. is without doubt a deadly creature if it is not eaten properly

Why do people think that the puffer fish is strange when it is attacked by an enemy?

   A. It becomes bigger.         B. It has funny teeth.

C. It gives off poison.         D. It can swim swiftly.

The underlined expression “on the spot” in the last paragraph is closest in meaning to      .

       A. now and then                                 B. once in a while          

C. then and there                             D. sooner or later

Who is allowed to serve fugu according to the passage?

   A. The Japanese government.              B. Licensed restaurants.

   C. Strict lawyers in Japan .                D. Very brave people

Which is NOT a symptom of fugu poisoning?

    A. Having difficulty breathing.                    B. Having no sense of touch.

C. Having no sense of taste.                       D. Having trouble speaking.

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 the “salmon”. This fish is born in fresh water but it travels many miles to salt water. There it spends most of 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 mice that 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 by falling into the sea.
Recently, scientists have studied the migration of a kind of lobsters(龙虾). Every year, when the season of bad weather arrives, 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 give birth            B enjoy a warm climate
C find food more easily  D find beautiful places
2. The fish called “salmon” spends most of its time in ____.
A salt water  B rivers  C fresh water  D its birthplace
3. A kind of mice in northern Europe move when ____.
A they give birth               B the weather becomes bad 
C there are too many of them in one place  D they haven’t enough food
4. What is the main idea of the passage?
A Animals move in order to find food more easily
B The migration of the fish called “salmon” is the most famous migration
C Living things move from one place to another because they like to travel
D Sometimes we know why and how living things move from one place to another, but sometimes we don’t.

The ocean contains many strange and surprising creatures. One such creature is the puffer fish. This very strange fish is probably the most poisonous creature in the ocean. The poison that this fish produces is 275 times more poisonous than the chemical which is usually used to kill rats.
The puffer fish gets its name from the way the fish protects itself from enemies. Whenever it is attacked, the fish blows up its body to three times bigger than its normal size!
Another strange thing about this fish is the fact that it can swim like other fish. Because it does not have bones like other fish, the puffer fish can only move slowly through the water as it is carried by waves.
The puffer fish also has funny teeth. These teeth stick out of the fish’s mouth and are used by the fish to open the shells of the creatures that live on the ocean floor.
This strange, ugly, and very poisonous fish is actually a very expensive kind of food in Japan. The Japanese call this fish “fugu”, and people have been known to pay $150 per person to eat a fugu meal (usually eight servings)!
Very brave people want to eat the most poisonous part of the fugu fish on purpose. They think that this part of the fish tastes the best! Strict laws have been passed to control restaurants which serve fugu; however, quite a few people have still died from eating fugu.Almost 200 people have died over the past 25 years.
When people eat fugu poison, they do not die on the spot. First, they feel a strange tickle on their lips and in their mouth. Then they can not feel anything with their fingers. Finally, they cannot move or speak. Death follows when they can no longer breathe. The poison may take only a few minutes or up to six hours to kill a person. There is no known cure for fugu poisoning.
【小题1】According to the passage, the puffer fish       .

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 there. In northern Europe, there is a kind of mice. 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 lobsters（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 other times we don’t. Maybe living things just like to travel.    

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     D. find beautiful places

The fish called “salmon” spends a long life in __________ .

A. salt water         B. rivers          C. fresh water       D. its birthplace

The mice in northern Europe move when __________ .

   A. they give birth                   B. the weather is bad

   C. the place gets too crowded         D. they haven’t enough food

The lobsters move __________ .

   A. to the fresh water              B. to the sea floor

   C. at a certain time               D. to find more food

What is the main idea of the passage?

   A. Animals move in order to find food more easily.

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

   C. Living things move from one place to another because they like to travel.

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