Blue whales are the largest animals in the wo...

Blue whales are the largest animals in the world. But they are amazing _______ because of their huge size, but their slow heartbeat.

For the first time , scientists have researched the _______ of a blue whale. They found _______ when blue whales dive (潜水) for food, their heart rates (心率) are as _______ as 2 beats per (每) minute (bpm). Scientists used to _______ that their diving heart rate was 15 bpm. When the whales go to the ocean’s _______ to breathe, their heart rate is between 25 and 37 bpm.

Usually, the larger an animal is, _______ its heart beats, since it takes more time to pump (输送) blood around _______ body. Shrews, the smallest mammals (哺乳动物), have a heart rate of up to 1,000 bpm. Humans usually stay between 60 and 100 bpm.

_______ slowing their heart rate, blue whales can send more blood to the muscles (肌肉) that they use ________. These muscles become stronger, allowing the whales to dive for longer periods of time.

1.A.neither B.either C.not only D.although

2.A.heartbeat B.body size C.diving D.food

3.A.it B.that C.once D.if

4.A.many B.little C.fast D.slow

5.A.regard B.expect C.think D.doubt

6.A.bottom B.surface C.center D.side

7.A.the slower B.slower C.the faster D.faster

8.A.it’s B.its C.his D.her

9.A.By B.In C.On D.At

10.A.to pump blood B.to eat C.to breathe D.to dive

九年级英语完型填空中等难度题查看答案及解析

Camels are amazing animals. They aren’t the most beautiful animals in the world. But they are certainly the most useful animals in the hot areas such as North Africa and the Middle East. They usually help people carry things. Now let’s learn more about camels.

There are two kinds of camels on the Earth. They are Arabian (阿拉伯的) camels and Asian camels. Arabian camels are dromedaries (单峰骆驼), but Asian camels are bactrianus (双峰骆驼). An adult camel is about 2 meters tall and weighs about 500 kilograms. Its legs are long. And its feet are big and soft. Most of the camels can live for about 40 years, but they usually stop working when they are about 25.

Camels live alone in the desert (沙漠). They aren’t afraid of the hot and cold weather. They mainly eat grass, leaves and bushes. They can walk for more than 600 kilometers without drinking. They only need to drink water every six or eight days. But when there is water, they can drink up to 90 liters (升). Camels walk slowly. They don’t like running because it’s too hot. But if they need, they can run at 20 kilometers an hour.

九年级英语填空困难题查看答案及解析

任务型阅读

Camels(骆驼) are amazing animals. They aren’t the most beautiful animals in the world. But they are certainly the most useful animals in the hot areas such as North Africa and the Middle East. They usually help people carry things. Now let’s learn more about camels.

There are two kinds of camels on the Earth. They are Arabian (阿拉伯的) camels and Asian camels. Arabian camels are dromedaries (单峰骆驼), but Asian camels are bactrians (双峰骆驼). An adult camel is about 2 meters tall and weighs about 500 kilograms. Its legs are long. And its feet are big and soft. Most of the camels can live for about 40 years, but they usually stop working when they are about 25.

Camels live alone in the desert (沙漠). They aren’t afraid of the hot and cold weather. They mainly eat grass, leaves and bushes. They can walk for more than 600 kilometers without drinking. They only need to drink water every six or eight days. But when there is water, they can drink up to 90 liters ( 升). Camels walk slowly. They don’t like running because it’s too hot. But if they need, they can run at 20 kilometers an hour.

九年级英语填空中等难度题查看答案及解析

Is the whale the world’s largest fish? No. It looks like a fish, but it is really a mammal. （哺乳动物）Then what’s the world’s largest fish? It’s the whale shark.

Although the whale shark is our biggest fish and lives in many oceans around the world, few people have ever heard of it. Scientists have not been studying whale sharks for very long. Much more needs to be learned about them.

A whale shark is sometimes called a “gentle giant”. It likes to be alone and doesn’t care a bit about divers or humans. The biggest whale shark weighed 24,250 pounds and was nearly 40 feet long. This makes it heavier and longer than a school bus.

Inside its huge mouth are great numbers of very small teeth. To count all of them, you’ll need to do some maths. The whale shark’s teeth are arranged in rows. There are between eleven and thirteen rows on each jaw (颚) and around three hundred teeth in each row.

However, the whale shark rarely uses its teeth. It does not chew or bite its food. Large amounts of water are pulled into its mouth and then pushed out through its gills (鳃).

For a few months every year, a group of whale sharks comes to Ningaloo Reef, off Western Australia. This gives scientists a wonderful chance to study the large fish. Whale sharks do live in other oceans of the world, but no one knows their population. It is possible that our biggest fish may need protecting. It is one of the reasons why scientists continue to learn all they can about these gentle giants.

根据短文内容选择最佳答案

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

A. 过多地　　　　　　 B.稀有地　　　　　　　　　 C. 很少地

2.Picture 　　　　　　 shows the head bone of the whale shark.

3.Which sentence can tell us that whale sharks are gentle?

A. They have large mouths.

B. They leave divers alone.

C. They live in many oceans.

4.Which of the following is TRUE according to the passage?

A. Little is known about whale sharks because scientists have studied them for a long time

B. The fifth paragraph is mainly about how a whale shark eats.its food.

C. The writer helps us know what the whale shark’s mouth looks like by comparing sizes.

5.The best title for the article should be ___________.

A. Gentle Giants

B. The Diary of a Sailor

C. The Largest Animal

九年级英语阅读理解中等难度题查看答案及解析

Is the whale the world’s largest fish? No. It looks like a fish, but it is really a mammal. （哺乳动物）Then what’s the world’s largest fish? It’s the whale shark.

Although the whale shark is our biggest fish and lives in many oceans around the world, few people have ever heard of it. Scientists have not been studying whale sharks for very long. Much more needs to be learned about them.

A whale shark is sometimes called a “gentle giant”. It likes to be alone and doesn’t care a bit about divers or humans. The biggest whale shark weighed 24,250 pounds and was nearly 40 feet long. This makes it heavier and longer than a school bus.

Inside its huge mouth are great numbers of very small teeth. To count all of them, you’ll need to do some maths. The whale shark’s teeth are arranged in rows. There are between eleven and thirteen rows on each jaw (颚) and around three hundred teeth in each row.

However, the whale shark rarely uses its teeth. It does not chew or bite its food. Large amounts of water are pulled into its mouth and then pushed out through its gills (鳃).

For a few months every year, a group of whale sharks comes to Ningaloo Reef, off Western Australia. This gives scientists a wonderful chance to study the large fish. Whale sharks do live in other oceans of the world, but no one knows their population. It is possible that our biggest fish may need protecting. It is one of the reasons why scientists continue to learn all they can about these gentle giants.

根据短文内容选择最佳答案

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

A. 过多地　　　　　　 B.稀有地　　　　　　　　　 C. 很少地

2.Picture 　　　　　　 shows the head bone of the whale shark.

3.Which sentence can tell us that whale sharks are gentle?

A. They have large mouths.

B. They leave divers alone.

C. They live in many oceans.

4.Which of the following is TRUE according to the passage?

A. Little is known about whale sharks because scientists have studied them for a long time

B. The fifth paragraph is mainly about how a whale shark eats.its food.

C. The writer helps us know what the whale shark’s mouth looks like by comparing sizes.

5.The best title for the article should be ___________.

A. Gentle Giants

B. The Diary of a Sailor

C. The Largest Animal

九年级英语阅读理解中等难度题查看答案及解析

It’s sad to learn that a whale has died in the ocean. However, that is not the end for the whale. It gives a lot to other sea animals after death.

When a whale dies, it quickly drops to the bottom of the ocean floor. There the whale’s dead body provides food and nutrients(营养) for deep-sea animals. The remains(残骸) can last(持续) for ten years and build an ecosystem called a whale fall — an “oasis(绿洲)” of life in the deep sea.

Chinese scientists found a whale fall for the first time in the South China Sea this year. The whale fall ecosystem can stay in the deep ocean because of great pressure and cold temperature there. They can stop the body from decomposing(分解) too quickly. The depth(深度) makes it hard for scientists to find the whale fall. There are less than 50 known whale falls in the world.

The whale fall in the South China Sea is about three meters long. Scientists have found several species(物种) near the whale fall. Some fish have started to eat the whale’s tail. A scientist named Xie Wei says the whale fall might be quite recent and needs long-term observation(观察). By studying the whale fall, scientists can better understand how sea ecosystems support life.

1.What does the whale’s dead body provide for deep-sea animals?

____________________________________

2.Where did Chinese scientists find a whale fall for the first time?

____________________________________

3.Why can the whale fall ecosystem stay in the deep ocean?

____________________________________

4.Are there any species near the whale fall in the South China Sea?

____________________________________

5.What does the passage mainly talk about?

____________________________________

九年级英语回答问题中等难度题查看答案及解析

Wild animals are our friends, but many of them are getting fewer and fewer. We should try to protect them. The four animals below are now in danger.

Tibetan Antelopes

Tibetan antelopes（藏羚羊）mainly feed on grass. They are usually found in groups of about 20. They are killed for their wool, which is warm, soft and fine and can be made into expensive clothes. The number of them is dropping year by year. There are less than 75, 000 Tibetan antelopes left in the world.

Golden Monkeys

Golden monkeys are mainly found in Sichuan, Gansu, and Shaanxi provinces. Golden monkeys have golden-orange fur（皮毛）. They move around in the daytime. They feed on fruits and young leaves of bamboos. But people are destroying the environment where they live. Trees and bamboos are disappearing, so golden monkeys have less and less to eat.

Elephants

Elephants are very big and strong. They are bigger than any other animals on land. They have poor eyesight, but very good hearing and smell. They can lift heavy things and break down branches with their trunk（象鼻）. Now, there are very few elephants in the world. The number of them is becoming smaller and smaller because their living areas are used for farming. Also, people hunt them for their tusks.

Wolves

Wolves are not very big. They have grey fur. Wolves have very good eyesight, hearing and smell. They eat animals, insects and snails. They are friendly to each other and never attack（攻击）people. Wolves are in danger, too. They are losing their living areas because people cut down forests. Soon they will have no home or food.

1.________

2.________

3.________

4.________

5.________

九年级英语信息归纳中等难度题查看答案及解析

There are many animals in the world. Some are dangerous, but some are not. Some live in the forest(森林). 1. We can often see tigers, elephants. Monkeys, bears, snakes and many other animals in the zoos. Among them pandas only live in China.

Pandas are lovely animals. Most of them live in the deep forests of Sichuan Province in China. 2. Their shoulders, legs , ears and eyes are black. Pandas are usually very heavy. 3. However, pandas are very agile(敏捷的). They can climb trees as easily as some other animals do.

Pandas live mainly on bamboo leaves. They have big and sharp teeth . Every day each grown-up panda eats about 15-30 kilos of bamboo leaves. 　　 4.　 　 .

Pandas also have spare time hobbies. Two of their hobbies are climbing trees and sleeping.

Sadly, there are not many pandas left in the world. 5. This is why the Chinese government is doing its best to protect pandas against being hurt and killed.

A.Their fur is white .

B.Some live in the zoos.

C.And they usually spend 10-20 hours　 eating.

D.That’s because some bad hunters are trying to kill them for money.

E.Some of them can be about 1.5meters tall and weigh about 100kilos.

九年级英语阅读理解困难题查看答案及解析

There are many animals in the world. Some are dangerous, but some are not. Some live in the forest(森林). 1. We can often see tigers, elephants. Monkeys, bears, snakes and many other animals in the zoos. Among them pandas only live in China.

Pandas are lovely animals. Most of them live in the deep forests of Sichuan Province in China. 2. Their shoulders, legs , ears and eyes are black. Pandas are usually very heavy. 3. However, pandas are very agile(敏捷的). They can climb trees as easily as some other animals do.

Pandas live mainly on bamboo leaves. They have big and sharp teeth . Every day each grown-up panda eats about 15-30 kilos of bamboo leaves. 　　 4.　 　 .

Pandas also have spare time hobbies. Two of their hobbies are climbing trees and sleeping.

Sadly, there are not many pandas left in the world. 5. This is why the Chinese government is doing its best to protect pandas against being hurt and killed.

A：Their fur is white .

B:　 Some live in the zoos.

C:　 And they usually spend 10-20 hours　 eating.

D: That’s because some bad hunters are trying to kill them for money.

E: Some of them can be about 1.5meters tall and weigh about 100kilos.

九年级英语单词拼写中等难度题查看答案及解析

Many of us enjoy watching animals in the world. But do you know they can teach us?

Geese (雁)，for example, teach a very good lesson about _______. In the fall, Canada geese fly to the warm south to ______ Canada’s cold winter. They lift off in no order. Yet _____ they form a V shape, with one bird leading the group.

This V shape allows geese to ______ energy. When the front bird moves its wings up and down, the resulting force of the air lifts the next one. This continues down the line. The bird _______ has the hardest job. When it gets _______, it moves behind, and another bird moves into the lead. By sharing the role, the group can travel great distances. Geese flying in a V shape can fly 70 percent farther without ______ than birds flying alone.

During the long flying journey, geese communicate with one another. They honk (鸣叫）to ______ the birds up front to keep up the speed. They also cheer each other up ______ working toward a common goal.

What have we learned from the lovely geese’s experience and skills?

______ together! Whether it is our personal lives or our jobs, we need other people. We need the spirit of teamwork!

1.A. experience　　 B. success　　 C. friendship　　 D. teamwork

2.A. look for　　 B. get away from　　 C. wait for　　 D. walk away from

3.A. busily　　 B. quickly　　 C. bravely　　 D. suddenly

4.A. save　　 B. waste　　 C. create　　 D. lose

5.A. in front　　 B. at the back　　 C. in the middle　　 D. on the left

6.A. bored　　 B. tired　　 C. hungry　　 D. thirsty

7.A. rest　　 B. sleep　　 C. excuse　　 D. result

8.A. lead　　 B. lift　　 C. teach　　 D. encourage

9.A. until　　 B. after　　 C. while　　 D. before

10.A. Play　　 B. Travel　　 C. Live　　 D. Work

九年级英语完形填空困难题查看答案及解析