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Is human blood all the same? “Yes,” you may say.“It's all red.”
Well,it's not as simple as you might think.
Blood is made up of different parts,such as red blood cells,white blood cells,and platelets(血小板).
Two chemical molecules(分子)on the red blood cells make people's blood different.Scientists mark one molecule "A" and the other molecule "B".
According to which and how many molecules are on the red cell, scientists divide blood into four types: A, B, AB and O.
Your blood type will stay the same your whole life.
Scientists have been wondering if there are some links between people's blood type and their personalities but they don't know for sure yet.
But some say that people with the same blood type may have things in common.
What's your blood type? Do you have family members or friends who are the same type as you? Read the following. Are you like this?
People with type A: They look peaceful from the outside. But they ask too much of themselves that they may be very nervous inside. They get happy or sad easily. Sometimes they are shy but always very careful. They can easily win people's trust.
People with type B: They have strong minds. Once they start a task, they don't give up easily. They'll try their best to finish it and do it well. Type B people always try to make themselves different from others. They want to do things in their own way in life.
People with type AB: They are maybe the strangest among all blood types. They can be both open and shy, noisy and quiet at the same time! They are responsible (负责的) and always ready to help others.
People with type O: They're open and good at making friends. They always start tasks but don't always finish them. They have lots of new ideas and love to be the centre of attention. They always strongly believe in themselves.
1. What's the main subject of this passage?
A.blood types B.blood types and personalities
C.personalities D.scientific research on blood
2. The blood types are decided by ____________.
A.the amount of white blood cells
B.the amount of platelets
C.the kind and amount of molecules on the red cell
D.the kind and amount of molecules on the white cell
3. Scientists are ________ about the relation between blood types and personalities.
A.not sure B.quite sure C.excited D.worried
4. If a person always tries to be different from others, he/she might have _________ blood.
A.A type B.B type C.AB type D.O type
5. Which of the following is NOT true according to the passage?
A.A person's blood type will never change throughout his life.
B.A person's blood type might have something to do with his/her personality.
C.A person with type O blood is usually confident.
D.A person with type A blood has the strangest personality.
查看习题详情和答案>>About 900 years ago two green children arrived in a small village in south England. Their eyes and skin were green and they spoke a strange language. They were very tired and weak, so the people of the village looked after them. The boy died a year later, but the girl grew strong and lived the rest of her life there. And her skin colour turned back to normal day by day. Scientists say that sometimes of people don’t have enough food to eat for a long time, their skin goes very pale and can even turn green.
Loch Ness is the largest lake in Scotland. It’s a very deep and cold lake. For hundreds of years, people have talked about a monster(怪物) called Nessie which lives in the lake. About seventy years ago, two people saw something moving in the lake. They said that the animal was playing and rolling around in the water. Since then many people say they have seen the monster. Their descriptions are always the same. It looks like a dinosaur, with a very long neck and a small head. It has a big bump(包,肿块)on its back. People have tried to photograph the animal, but the pictures have not been very clear. Scientists don’t know whether there is a monster or not. Some say it may be a whale or a very large fish. Some think it’s a snake. Others say there’s nothing at all— nothing but people’s imagination. Maybe we’ll never know what’s in Loch Ness.
小题1:What kind of story is talked about in this programme?
A.Romantic stories. | B.Mysteries. | C.Horror stories. | D.Comedies. |
A.They both enjoyed a long and happy life. |
B.The girl’s eyes and skin were green all her life. |
C.At first they spoke the same language as people in the small village did. |
D.Maybe they hadn’t eaten enough for long before they reached the village. |
小题4:What can we learn from the second story?
A.Scientists are still not sure whether there is a monster or not in Loch Ness. |
B.Loch Ness is very deep and warm lake in Scotland. |
C.People have taken very clear pictures of Nessie. |
D.In fact Nessie is a whale or a snake. |
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David hated spending money. When he had to buy something in a shop, he always tried his best to knock down the price, even for the cheapest things. If he wanted to buy a bottle of orange, for example, and the shopkeeper asked for $2, David would say, “Make it $1.90 and I’ll buy it.” Sometimes the shopkeepers agreed to reduce their prices a little. “What’s ten cents?” they asked themselves. “If it makes this man happy, it won’t hurt me very much.” In this way David saved a few cents here and a few cents there, and by the end of the year he had saved several hundred dollars.
One day he had a very bad toothache and had to go to the dentist. The dentist looked at the tooth and said, “This tooth will have to come out. It’s too serious to save.” “How much must I pay you to take out a tooth?” David asked. “Forty dollars,” the dentist said. “How long will it take you to pull out the tooth?” he asked. “About two minutes,” the dentist answered. “Forty dollars for two minutes’ work!” he shouted, “That’s robbery (抢劫).” The dentist smiled. “You’re right,” she said. “Thank you for telling me. I’ll pull your tooth out very slowly. How about if I take half an hour?”
【小题1】In the passage the underlined word “reduce” means “____________”
A.feel worried about | B.be interested in |
C.get higher | D.make less |
A.The doctor want to make more money. |
B.The tooth itself was serious . |
C.The tooth wanted to come out . |
D.Daniel wanted to save some money. |
A.angry | B.sad | C.afraid | D.worried |
A.too little time to pull out a tooth |
B.too little time to pay the dentist $40 |
C.too long to pull out a tooth |
D.too short for the dentist to finish the operation |
A.He was very strict with others. | B.He was very clever. |
C.He was very generous. | D.He was very stingy(吝啬). |