Humans have four basic blood types: A, B , AB...

Humans have four basic blood types: A, B , AB and O. Before doing blood transfusions(输血), we have to check a person’s blood type and find out which kind it is. That is the most important step before a blood transfusion. But do you know that just like humans, animals also have blood types?

Dogs have eight basic blood types, though as many an twelve may exist. And a dog can receive any other dog’s blood for a transfusion if it is the first time. After the first time, it becomes important to check the blood type to prevent any risks.

Cats have three basic blood types, named A , B and AB. Of these three types, the A blood type is the most common. Almost 94 percent of the cats in theU.S.A have that blood type. And AB is a rare blood type.

Horse blood types are divided into eight major blood systems, namely A, C, D, K, P, Q, U and T. Cattle have eleven blood types and sheep have seven.

And surprisingly, plants seem to have blood types as well. A Japanese policeman accidently discovered this when he found an extra blood type at a crime scene. Certain proteins in plants are similar to those in human blood. Therefore, plants can also be divided into different groups according to their sap（汁液）. But scientists’ understanding of the blood types in plants is still at an early stage.

1.How many animals are mentioned in the article?

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2.What do we have to do before a blood transfusion?

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3.Can a dog receive any other dog’s blood transfusion after the first time?

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4.Among all the animal mentioned in the article, what has the greatest number of basic blood types?

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5.How many cats in theU.S.A have the A blood type?

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九年级英语回答问题中等难度题查看答案及解析

Karl Landsteiner first thought of naming blood types in 1900. He put blood into four types. These four blood types were named A, B, AB, and O. Blood type O is the most common around the world. Blood type A is the second most common. and type AB is the least common.

Doctors try to give blood to a person according to the person’s blood type. Blood type O can be given to a person with any other blood type, but doctors also need to make sure that the “RH factor (因子)” in patients’ blood matches the blood they are given. If people have one kind of protein (蛋白质) in their blood, they are RH positive (Rh+). If people do not have the protein, they are Rh negative (Rh-). Most people are Rh+.

If a mother has an Rh- blood type, she may have trouble when she has a baby. If her baby is Rh+, the baby’s blood may mix with the mother’s blood before the baby is born. The mother’s blood will change. If the mother has another Rh+ baby, the mother’s blood will attack the baby’s blood. The baby may die or become sick. Doctors have to watch the mother and baby carefully in these cases.

1.Who named the blood type?

A. Albert Einstein.    B. Thomas Edison.　　　　

C. Albert Schweitzer.    D. Karl Landsteiner.

2.Which blood type is the second most common in the world?

A. Blood type A.    B. Blood type B.　　

C. Blood type AB.    D. Blood type O .

3.What must be in a person’s blood if the person is Rh+?

A. Special water.    B. A special protein.     C. Baby’s blood.    D. Electricity.

4.Which of the following might be dangerous for the baby?

A. Mother (Rh+) / baby (Rh+).　     B. Mother (Rh+) / baby (Rh-).

C. Mother (Rh-) / baby (Rh+).　　     D. Mother (Rh+) / baby (Rh-).

5.Where is this article most probably taken from?

A. A story book.　　　　 B. A news report.　　　　 C. A science magazine.     D. An ad

九年级英语阅读理解中等难度题查看答案及解析

Many hospitals have blood banks. In these banks, blood of all types is stored. When blood is needed, it is taken from the bank. Healthy people then give blood to the bank to replace (取代) the blood that is used. Blood can be kept in the fridge for about three weeks with a kind of chemical.

When people lose much of their blood because of operations or accidents, they may need transfusions(输血). Some people may need transfusions because of illness. Sometimes only a part of the blood is used for transfusions. Plasma(血浆), the liquid part of the blood , may be given alone. Transfusions of plasma are often given when people have been badly burned.

When a person gets a transfusion, he gets blood of the same type as his. Or there may be a bad reaction(反应). To make it safer, before a transfusion is given, the blood to be used must be tested with the blood of the person who is to receive it. This testing is called cross matching of the blood.

Oswald Robertson, an American doctor, was the first one to give transfusions. He used blood that had been stored for some time to help wounded soldiers in 1918 in World War One.

1.Blood banks usually have ______.

A. only one type of blood

B. one or two types of blood

C. two or three types of blood

D. all types of blood

2.Blood banks get blood from ______.

A. healthy people　　　　　　　　　　　 B. operations

C. accidents　　　　　　　　　　　　　　 D. transfusions

3.Before a transfusion, it is important to make sure that ______.

A. the blood is cold

B. the blood has been stored long enough

C. the blood is from people who have accidents

D. the type of blood to be used is the same as the patient’s

4.This passage wants to tell us ______.

A. who Oswald Robertson was

B. the first transfusions

C. how blood banks works

D. what blood banks are like

九年级英语阅读理解中等难度题查看答案及解析

Smile is a very basic sense but humans have lost much of the ability to use it ________(恰当地).

九年级英语根据中/英文提示填空中等难度题查看答案及解析

Typing（打字）is one of the most important and basic work skills of the 21st century. 1. Thumbing means using one or more thumbs（拇指）to press the keys.

Most people can type between 20 and 35 words a minute. Some typists, however, can work very quickly, at more than 110 words a minute. And people’s left hand usually does 56 percent of the typing.

The most common international English keyboard is QWERTY.2. It is more than 140 years old. Other keyboards include QWERTZ (in Central Europe) and AZERTY (used by most French speakers in Europe). Languages with non-Roman alphabets（字母系统），for example, Arabic, Russian or Japanese, have their own keyboards.

The sentence “The quick brown fox jumps over the lazy dog” is often used to practice typing.3.

Thumbing and typing can hurt you. RSI (repetitive strain injury) is the name of a medical condition you get if you type too much. 4.Anyone who uses a computer a lot is at risk and should know about RSI.　

A.It gets the name from the first six letters on the top left side of the keyboard.

B.However, most people do not understand what . RSI is or how serious it can be.

C.Because mobile phones are now so popular, there is a new kind of typing - thumbing.

D.It seems that thumbing is much harder for us to learn.

E.That’s because it uses every letter of the English alphabet.

九年级英语补全短文5选4中等难度题查看答案及解析

根据所给提示或句意写出单词

1.Doctor, I have a pain in my_______（胸部）．

2.It is said that blood type Os are_______（好奇的）and generous but stubborn.

3.CZ 12，or Chinese Zodiac（《十二生肖》），is Jackie Chan's last big_______(动作)film.

4.Young people usually like popular __________(a long written story).

5.----You'd better wear_______ to protect your eyes when you go out.

---I will, thank you. The sun is shining so brightly.

九年级英语单词拼写中等难度题查看答案及解析

There are four basic skills in English learning — listening, speaking, reading and writing. Ms. Li suggests that students should spend 2.5 hours improving the four basic skills after class every week. According to Ms. Li’s form, Charles has spent ________ minutes in all (总计) practicing writing during the past three weeks.

A. 1.5                  B. 30              C. 90

九年级英语单项填空中等难度题查看答案及解析

There are four basic periods for human beings to pass through when entering and living in another country. This long process helps you deal with culture shock(文化冲击).

Culture shock begins with the "honeymoon period?”. This is the time when you first arrive in a place where everything about the new culture is strange and exciting. You see new things, hear new sounds and language, eat new kinds of food. This period can last for quite a long time because you feel very happy.

Unluckily, the second period can be more difficult. After you have got used to your new life, you can become very uncomfortable and begin to miss your motherland, your family, your friends, your pets and so on. All the small problems in life seem to be much bigger and more worrying when you face them in a foreign country. This period can be very difficult and lead to moving backwards quickly.

The third period is called the “adjustment (调整)period”. You begin to realize that things are not so bad in the new country. Your sense of humor usually becomes stronger and you realize you are becoming stronger by learning to take care of yourself in the new place. Things are still difficult, but you are now a survivor.

The fourth period can be called "at ease at last". Now you feel quite comfortable in the new place. You can deal with most problems that you have. You may still have problems, but you know you are strong enough to deal with them. At this time, you may feel a little uncomfortable if you go back to your motherland.

根据短文内容选择最佳答案,并在答题卡上将该项涂黑。

1.Culture shock usually happens when you_________.

A.get married to a foreigner B.live in a big city

C.go to live in a foreign country D.meet foreigners in your motherland

2.During the first period of the process, you feel_________

A.sad and lonely B.happy and excited

C.angry but strong D.easy but uncomfortable

3.The fourth period can be regarded as a period of being_________.

A.tiring B.worrying C.disturbing D.relaxing

4.We can learn from the text that_________.

A.living abroad is always fun

B.it is boring to live in another country

C.living in a new country is hard at the beginning

D.dealing with culture shock is a long process

5.What is the text mainly about?

A.The advantages of culture shock. B.Four basic periods of culture shock.

C.How to live a better life abroad. D.How to make friend in a foreign country.

九年级英语阅读单选困难题查看答案及解析

We may know that there are four basic stages (阶段) that human beings pass through when they enter and live in a new culture. This process is the way our brain and our personality react to(对……做出反应) the strange new things we meet with when we move from one culture to another.

Culture begins with the “honeymoon (蜜月) stage”. This is the time when we first arrive in which everything about the new culture is strange and exciting. This stage can last for quite a long time because we feel we are very excited.

Unluckily, the second stage can be more difficult. After we have got used to our new life, we can become very tired and begin to miss our homeland and our family, friends, pets.

The third stage is called the “adjustment(调整) stage”. This is when you begin to realize that things are not so bad in the host culture. You realize that you are becoming stronger by learning to take care of yourself in the new place.

The fourth stage can be called “at ease at last”. Now you feel quite comfortable in your new place. You can deal with most problems that you have.

There is a fifth stage of culture shock which many people don’t know about. This is called “reverse(逆向) culture shock（冲击）” . When you go back to your own culture, you find you have changed and things there have changed. Now you feel a little uncomfortable back home.

1.Culture shock usually happens when you ______.

A. are married　　 B. move to a big city

C. go to live in a foreign culture　　 D. meet foreign people in your country

2.How do you feel during the first stage of culture shock?

A. Lonely and sad.　　 B. Bored and homesick.

C. Angry and impatient.　　 D. Happy and excited.

3.How could the third stage be described?

A. Adjustment.　　 B. Pulling away.　　 C. Shock.　　 D. Anger

4.Where can you probably find this passage?

A. In a novel.　　 B. In a magazine.　　 C. In a picture.　　 D. In an ad.

5.What’s the main idea of the passage?

A. Man would pass through four basic stages when living in a new culture.

B. Entering and living in a new culture is challenging.

C. It is much fun to live in a new culture.

D. Life in a new culture is a struggle.

九年级英语阅读理解中等难度题查看答案及解析

We may know that there are four basic stages that human beings pass through when they enter and live in a new culture. This process, which helps us to deal with culture shock(文化冲击), is the way our head and our personality react to(对…做出反应) the strange new things we meet with when we move from one culture to another.

Culture begins with the “honeymoon stage”. This is the time when we first arrive in which everything about the new culture is strange and exciting. We see new things, hear new sounds and language, eat new kinds of food. This stage can last for quite a long time because we feel we are very excited.

Unluckily, the second stage can be more difficult. After we have got used to our new life, we can become very tired and begin to miss our homeland and our family, friends, pets. All the little problems in life seem to be much bigger and more disturbing when you face them in a foreign culture. This time of cultural adjustment(调整) can be very difficult and lead to pulling away from the new culture.

The third stage is called the “adjustment stage”. This is when you begin to realize that things are not so bad in the host culture. Your sense of humor usually becomes stronger and you realize that you are becoming stronger by learning to take care of yourself in the new place. Things are still difficult, but you are now a survivor!

The fourth stage can be called “at ease at last”. Now you feel quite comfortable in your new place. You can deal with most problems that you have. You may still have problems with the language, but you know you are strong enough to deal with them.

There is a fifth stage of culture shock which many people don’t know about. This is called

“reverse culture shock”. Surprisingly, this happens when you go back to your own culture and find

that you have changed and that things there have changed while you have been away. Now you feel a little uncomfortable back home. Life is a struggle!

1.How do you feel during the first stage of culture shock?

A. Lonely and sad. 　　　 B. Bored and homesick.

C. Angry and impatient. D. Happy and excited.

2.How could the third stage be described?

A. Adjustment.　 B. Pulling away　 C. Shock.　　 D. Anger.

3.What’s the main idea of the passage?

A. Human beings would pass through four stages when they begin to live in a new culture.

B. Entering and living in a new culture is challenging(挑战).

C. It is much fun to live in a new culture.

D. Life in a new culture is a struggle.

九年级英语阅读理解中等难度题查看答案及解析