Frogs are animals that can live both in water...

Frogs are animals that can live both in water and on land. There are more than 5,000 kinds of frogs on the earth. The earliest known frogs lived about 190 million years ago and the frogs today still look the same. Here are some fun things that you might not know about frogs. Enjoy!

The Biggest and the Smallest Frogs

Some frogs can be very big. The biggest kind of frog is the Goliath Frog in West Africa. Its body can be nearly 30cm long, about the size of a large cat. The Gold Frog and the Poison Frog are the smallest frogs in the world. They are less than 1cm long. Though the Poison Frog is very small, it is not weak at all. It is dangerous. Any animal that eats it will die very soon.

The Best Jumpers

Frogs are very good at jumping. They developed jumping legs so that they would not be eaten by other large animals. Using their big strong legs, more frogs can jump over 20 times their own length. The Australian Rocket Frog can even jump over 2m, which is 50 times its body length (5.5 cm). That might be the reason why frogs are called the best jumpers on the earth.

The Cryogenic Animal

Some frogs like the Common Wood Frog have a special ability to live in very cold places. When the temperature goes down, they become ice frogs. 2/3of their body water freezes. Their hearts stop, and their breathing stops too. You may think they are dead, but in fact they are not. Maybe we humans can learn the way that the frogs do for medical purpose.

1.The earliest frogs lived about ________ million years ago.

A．20

B．30

C．50

D．190

2.________ can jump over 2m.

A．The Goliath Frog

B．The Common Wood Frog

C．The Poison Frog

D．The Australian Rocket Frog

3.What will happen to a Common Wood Frog at very low temperature?

A．It will die very soon.

B．It will be an ice frog.

C．It will become dangerous.

D．It will become very small.

九年级英语阅读理解中等难度题查看答案及解析

Cats are animals that live on land. They can be divided into two groups: big cats and small cats. Big cats are the larger animal species. Here are some materials about big cats.

1.When do tigers mainly hunt?

A.In the morning.　　　 　 　 B.At noon.

C.In the afternoon.　　　　 D.At night.

2.Lions live mostly in .

A.Asia　　 B.Russia　　 C.Africa　　 D.India

3.What do leopards often do in the daytime?

A.Rest in trees.　　

B.Sleep in caves.

C.Look after their babies.　

D.Hunt small animals.

九年级英语阅读理解中等难度题查看答案及解析

　　 human beings 　　 animals can live without air.

A. Both; and　　 B. Either; or　　 C. So; that　　 D. Neither; nor

九年级英语单选题简单题查看答案及解析

A fish that lives in America can live out of water for months at a time, similar to how animals got used to land millions of years ago, a new study shows.

The Mangrove Rivulets, a kind of little fish, lives in small pools of water. When their living place dries up, they live on the land, said Scott Taylor, a researcher in Florida.　　　　　　　　　　　　　　　　

The fish can grow as large as three inches. They group together and breathe air through their skin before they can find water again.

The new scientific discovery came during a trip.

“We were travelling for fun. and one day I kicked over a log (圆木) and the fish came out.” Taylor told reporters by telephone. He said he would make his study on the fish known to the public in an American magazine early next year.

In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.

Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at a time, while lungfish (肺鱼) found in Australia, Africa and South America can live out of water, but only in a not active (活波的) way. But no other known fish can be out of water as long as the Mangrove Rivulets and keep active, according to Patricia Wright, a biologist at a Canadian University.

More studies of the fish may tell how animals changed over time.

“These animals live in conditions similar to those millions of years ago, when animals began to move from water onto land.” Wright said.

1.. The Mangrove Rivulets is a type of fish that_________.

A. lives on land in Africa　　　

B. can stay alive for months out of water

C. prefers living in dry places　　　

D. is the longest living fish on earth

2.. Who will write a report on Mangrove Rivulets?

A. Scott Taylor.　　 B. Some reporters. C. Patricia Wright.　　　　 D. Scientists from Europe.

3.. According to the passage, lungfish can___________.

A. breathe through its skin　　　　　　     B. be found in Asia

C. keep alive out of water　　　　　　     D. keep alive and walk on land

4.. Which one of the sentences below is not true?

A. The Mangrove Rivulets fish can live out of water as long as other animals if it has something to eat.

B. Millions of years ago, animals began to live onto land from water.

C. Lungfish found in Australia, Africa and South America can live out of water in a not active way.

D. The walking catfish found in Southeast Asia can stay on land for hours at a time.

5.. What can we say about the discovery of Mangrove Rivulets?

A. ft was made by Scott Taylor, a researcher in New York.

B. It was helped by an American magazine.

C. It was helped by Patricia Wright.

D. It was made by a researcher while travelling.　

九年级英语阅读理解困难题查看答案及解析

Most animals on land are known to us, but many living things underwater are not. Now let’s get to know some of them.

Sea Cucumber

Sea cucumbers are strange animals sticks up. When summer comes, they stay deep to sleep because they are afraid of heat. And when it is autumn, they move to shallow(浅的) water and get their food.

Pike

The pike is a kind of freshwater fish. They are good swimmers and like swimming near boats, waiting to be fed. They have sharp teeth to catch fishes. When they are young, they live in groups. However, when they grow up, they prefer to live alone.

Cuttlefish

A cuttlefish can swim quite fast, so it is also called rocket(火箭) fish. It has eight arms and two feelers on its head, just around its mouth. It ejects ink(喷墨) when it is in danger. Its meat is delicious, and it is often the first choice for many people.

Octopus

An octopus has long arms, with which to catch food and protect itself. When it is sleeping, one or two of its arms are still on duty, keeping moving. Once it feels something dangerous, it can wake up at once to take action.

1.Sea cucumbers stay deep to sleep in summer because they　　　　　 .

A.are afraid of high temperature B.want to get strong and fat.

C.are afraid of their enemy D.want to live alone

2.According to the passage,　　　　　 likes to swim near boats.

A.the sea cucumber B.the pike C.the cuttlefish D.the octopus

3.What happens if a cuttlefish meets its enemy?

A.It rushes at the enemy at once. B.It cuts off one of its arms.

C.It bites with its sharp teeth D.It ejects ink to the enemy.

4.The________of an octopus can help protect it when in danger.

A.colour B.arms C.sound D.smells

九年级英语阅读单选简单题查看答案及解析

Water, air and sunshine are __________great importance ____living things．

A．in; on            B．in; to             C．of; on            D．of; to

九年级英语单项填空中等难度题查看答案及解析

Elephants are the largest land animals alive today.African elephants live in family groups called herds(群).All of the elephants in the herd take care of each other.The leader of the herd is an old mother elephant.She is the matriarch (族长).A herd may have as few as eight or as many as 100elephants.The other elephants follow the matriarch because she knows how to keep them safe from coming danger.

Elephants learn by watching and copying other elephants， and also learn from life.Baby elephants stay with their mothers until they are fully grown at about ten years old.Elephants live to be 50or 60years old.Elephants are smart animals with long memories.In the dry season， a matriarch can remember where water was found in the past.The herd will follow her there.She can also remember the safest place for baby elephants to cross a fast—moving river.

Elephants talk to each other with rumbling sounds.Some rumbling sounds are so low and deep that people are unable to hear them.Elephants hear sounds not only with their ears， but also with their feet， and even trunks (long noses of the elephants).They also greet each other by touching with their trunks and feet.If danger appears， mothers beat their ears to call their babies to them.

Other animals don’t usually attack(攻击) elephants.However， a lion might try to attack a sick elephant or a baby.If this happens， the adult elephants circle around the baby elephants.The adults make louder sounds and hit the ground with their trunks.The matriarch puts herself between the lion and the herd.She beats her ears out to make herself look even larger.Then she lowers her herd and attacks the enemy(敌人) in a big cloud of dust(灰尘).

1.According to Paragraph(段落) One， an elephant herd 　　　　 .

A. has a father elephant as the leader

B. owns a matriarch who keeps it away from danger

C. always has several leaders and hundreds of elephants

2.Long memories help elephants to 　　　　 .

A. choose their matriarch　　 B. communicate with each other　　 C. find water and cross the river

3.What does the underlined word "rumbling" mean？

A. 低沉的　　 B. 尖细的　　 C. 高亢的

4.Why do the adult elephants circle around their babies？

A. To keep their babies safe.　　 B. To welcome their friends.　　 C. To attack their enemies.

5.The passage mainly tells us about 　　　　 .

A. why the elephants live in herds

B. what the elephants’ living habits are

C. how the elephants avoid being attacked

九年级英语阅读单选困难题查看答案及解析

阅读理解。

Arog and Brog are two frogs. They had lived in a village all their lives. They thought they would like to go and see the big city that was about ten miles away.

They talked about it for a long time, and at last they set off to see the city.

It was a hot day, and they soon began to feel tired. They had only gone a little way when Arog said to Brog, "We must be nearly there. Can you see the city?"

"No," said Brog, "but if I climb up on your back I might be able to see it."

So Brog climbed up on Arog's back to see the city.

Now when Brog put up his head, his eyes could only see what was behind, and not what was in front. So he saw the village they had just left.

"Can you see the city?" asked the frog who was below.

"Yes," answered Brog. "I can see it. It looks just like our village."

Then the frogs thought that it was not worthwhile going any farther. They went back and told the frogs round the village that they had seen the city, and it was just like theirs.

1.Why did the two frogs talk a long time before they set off?

A．Because it was far from their village to the city.

B．Because they were afraid of the hot weather.

C．Because they were not interested in the city.

D．Because they didn't want to go there at all.

2.Brog climbed up on Arog's back to .

A．relax himself　　　　　　　　　 B．see how strong Arog was

C．see the city　　　　　　　　　　 D．play a joke on Arog

3.What did Brog see on Arog's back?

A．A beautiful city in the front.

B．The village they had just left.

C．Another village looked like theirs.

D．A city that looked like their village.

4.The two frogs stop walking because .

A．there was no city at all

B．they were too tired to walk

C．it was dangerous to go ahead

D．they thought it was not worthwhile going any farther

5.What does the writer want to tell us?

A．If you want to make it, you should keep on doing it.

B．In fact, life in the village is as good as that in the city.

C．If you want to do something, you should think it over.

D．Sometimes your eyes can tell a lie, so you must think with your heart.

九年级英语阅读理解中等难度题查看答案及解析

_______ human beings ________ animals can live without air.

A.Both, and B.Either, or C.Neither, nor D.Not only, but also

九年级英语单选题中等难度题查看答案及解析

___________ human beings ______________ animals can live without air.

A. Both; and　　 B. Either; or　　 C. Not only; but also　　 D. Neither; nor

九年级英语单项填空困难题查看答案及解析