What does blood do for us? It brings food to ...

What does blood do for us? It brings food to all parts of our bodies and takes waste away from them. All parts of our bodies are made of cells. These cells are very small. They all need all the time. No one could make pictures of cells because no one could see them.

What makes the blood move round the body? The heart is a pump. It pumps the blood and sends it round the body. The heart has rooms with doors between them. It pumps blood in and out through these doors by changing the size of the rooms so that the doors are opened and shut. The heart keeps a stream of blood going all around the body and back again to itself. The heart is a very important part of one's body. When it stops beating, one will die.

1.Blood is important to our body because it can ________

2.What does the underline word "microscope" mean in Chinese?

3.According to the passage, a pump is used to ________

九年级英语阅读理解简单题查看答案及解析

---Thank you so much for what you have done for all of us!

---____________.

A. It does’t matter.　　 B. Never mind.　　 C. Don’t mention it.　　 D. Of course ont.

九年级英语单选题中等难度题查看答案及解析

— It’s very kind of Lucy to prepare all the things for the picnic.

— Do you mean we 　 bring anything?

A. can’t　　 B. shouldn’t　　 C. needn’t　　 D. mustn’t

九年级英语单选题中等难度题查看答案及解析

We all do it. We all need it. Most of us need to do it for seven to nine hours a night. It is　　 of course sleep. Many scientists believe the truth. An adult should get eight hours sleep every night. However, some people can live without feeling sleepy after as little as six hours of sleep. But other people need about ten hours a night. Babies usually sleep between 14 to 17 hours a day. Usually they only stay awake for one to three hours.

Do you take a nap (打盹) in the day? Some adults and children need to nap. This just depends on the person. One thing scientists have learned is that man is the only mammal (哺乳动 物 ) that stops himself from going to sleep. This can be bad for our bodies in many ways. Scientists believe not sleeping enough can make us eat more. And not sleeping enough can make us put on weight. Hopefully you are a good sleeper and get a good night’s rest tonight!

阅读短文，根据英文释义及首字母提示拼写单词。

1.h___________________ yet

2.a___________________ a fully grown person

3.阅读短文(B)，完成同义句转换，每空一词。

One thing scientists have learned is that man is the only mammal (哺乳动物) that stops himself from going to sleep.

One thing scientists have learned is that man is the only mammal (哺乳动物) that________himself ________to sleep.

任务4： 根据短文(B)内容回答问题。

4.How many hours sleep should an adult get every night?

____________________________________________________.

5.Who usually sleep between 14 to 17 hours a day?

__________________________________________________________________________________.

6.What are the results of not sleeping enough according to scientists?

__________________________________________________________________________________.

九年级英语多任务混合问题简单题查看答案及解析

Each year quite a lot of food __ around the world. It’s really time for us to do something.

A. was wasted　　 B. is wasted

C. wasted　　 D. will be wasted

九年级英语单选题困难题查看答案及解析

Each year quite a lot of food __ around the world. It’s really time for us to do something.

A.was wasted　　　 B.is wasted　

C.wasted　　　　　　 D.will be wasted

九年级英语单项填空简单题查看答案及解析

Each year quite a lot of food ______ around the world. It’s really time for us to do something.

A. was wasted　　　　 B. is wasted　　　　

C. wasted　　　　 D. will be wasted

九年级英语单项填空中等难度题查看答案及解析

Each year quite a lot of food ______ around the world. It’s really time for us to do something.

A. was wasted      B. is wasted    C. wasted          C. will be wasted

九年级英语单项填空困难题查看答案及解析

阅读理解。

Do you like listening to music? Does all of the music bring happiness to you? Do you know some music is noise? What is noise? Noise is a loud or unwanted sound. It is also called noise pollution.

Where is noise from? Noise can be caused by many kinds of machines, such as motorcycles, planes, farm tractors and TVs. And, to some people, rock bands are also noise.

What happens to people who live near noisy machines or use them over a period of time? Doctors find that noise pollution can influence both our health and behavior. It can cause high stress levels, hearing loss, sleep problems, and other harmful effects.

Scientists use a unit(单位) of measure(测量) called a decibel to measure the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talk measures between 40 to 65 decibels. Sounds from traffic and from some rock bands can measure over 120 decibels. Noise at this high level causes the greatest hearing loss.

How do we reduce noise damage? Turn down your music player or wear ear muffs(耳罩) when you are working in a noisy environment. Ear muffs for human can protect against noise pollution.

1.According to the passage, noise is .

A．terrible sound

B．any kind of sound

C．all sounds that you can hear

D．loud sound that people don't want

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

A．A decibel is a unit that measures sound.

B．In fact, a decibel is also a kind of noise.

C．A person who hates sound belongs to decibels.

D．Machines that make loud noise are called decibels.

3.According to the passage, loud noises can .

A．stop machines　　　　　　　　　　　　　 B．cause a loss of hearing

C．improve people's hearing　　　　　　 D．help people to sleep better

4.We can infer from the passage that .

A．noise is only from traffic

B．any sound can hurt people

C．noise is a serious problem

D．rock music doesn't belong to noise

5.Study this diagram below. Which of the room is suitable for you to do your homework?

A．Room A.　　　　 B．Room B.

C．Room C.　　　　　　　 D．Room D.

九年级英语阅读理解中等难度题查看答案及解析

- What do you think of your school, Linda?　　

- It's a good place for us to ________ ourselves for the future.

A. promise                B. prove                    C. prepare            D. present

九年级英语单项填空简单题查看答案及解析