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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>>- _______boy he is!
- Yes, Mrs Lu was very grateful _______his help.
A. What a kind; for B. How kind; for C. What a helpful; to D. How a nice; with
查看习题详情和答案>>Forests help to keep water from running away，so drought（干旱）doesn’t often happen．Chinese people have built a“Great Wall”of trees，millions of trees across the northern part of the country．
The Great Green Wall 1 ________ （be）7,000 kilometres long，and it will stop the wind from 2 ________（blow）the earth away．It 3 ________already ________（save）a lot of land．
Wang Feng is a worker at Yulin in Shanxi Province．He 4 ________ （work）on the Great Green Wall with many other people．We 5 ________ （visit）him at his workplace and when we saw him he 6 ________ （work）among the trees．He told us something about his work“We must 7 ________ （plant）many thousands of trees every year，”he said“You see all those small trees over there on that hill? That was sand five years ago．Now it's a young forest! In a few years’ time，we 8 ________（cover）those mountains with trees，too!”He pointed to the high mountains far away．
Was it difficult 9 ________ （work）on the Great Green Wall?
Yes，It’s hard work．but it's very important．The only problem is we have to 10 ________（grow）our own food．But thanks to the Great Green Wall，the land produces more crops．So the more trees there are，the better harvest we have．”
查看习题详情和答案>>So his mother took her child to the hospital. The doctor looked up his nose. She put a tiny steel rod（钢棒）into his nose and felt the paper. She said she would have to cut his nose to get the paper out.
The child’s mother came home looking sad. She didn’t want her child to have his nose cut. He was a handsome boy and the cut would make him ugly.
Next day, the child’s mother took him to her friend Sidney. Sidney lived in a house with an old woman called May. She asked to see the child, so the child let her look up his nose. He closed his eyes.
“Yes, I can see it,” May said, “It will be out soon!”
As she spoke, she shook black pepper（胡椒粉） on the child’s nose. He gave a mightly（有力的）sneeze and the paper flew out. His mother was surprised. May told her to take the boy to the sea for a swim. She said the salt water would go up his nose and stop the bad smell.
So the child didn’t have to go to the hospital and gave his nose out.
小题1: How did the silver ball go into the boy’s nose?
| A．His mother put it into his nose. |
| B．The boy himself pushed the ball up his nose. |
| C．The silver ball rolled into his nose itself. |
| D．The passage didn’t tell us. |
| A．The ball stayed in his nose for too long. |
| B．The boy didn’t like to wash his nose. |
| C．His nose is cut and gave a bad smell. |
| D．Because he had a running nose. |
| A．Some medicine | B．Some black pepper |
| C．Fresh air | D．The salt water |
| A．The boy himself | B．The doctor |
| C．Sidney | D．May |
| A．Old medicine | B．Some good doctors |
| C．A poor boy | D．A silver ball |
Time is very important in our life．However，I had never realized it until I received a beautiful gold watch from my father one day when I was 19 years old．This 1 always tells me the importance of time in my life．
It was a cold rainy day．My father asked me to go to the 2 to pick up my uncle and take him home，I should have arrived there 3 4：30 p．m．We had a basketball match at school that afternoon 4 the match was too exciting．When the match was nearly over，I suddenly remembered my uncle and 5 to the airport．It was too late．He had left the airport and taken a taxi to our house．
I was very worried that my father would be 6 with me．As soon as I entered the living room，I saw my uncle in the sofa looking very tired．I dared not 7 my uncle and my father．I said hello to them in a very low voice．My father didn't say 8 ．Instead，he asked me to sit next to him．"Peter，did you have a good time today?" He 9 very disappointed，but his voice was still calm．I felt so sorry and answered in an even 10 voice．"Yes，Dad，but I'm really sorry about not 11 my uncle．This will 12 happen again．I promise．"My father handed me a box with a beautiful gold watch inside．It was a gift my uncle bought．for him．He gave it to __13 and said，"I hope you have learned something important today，and this watch will help you remember the importance of time．"
The watch has been with me for twelve years．I wear it not because of its price，but because of 14 I learned from it．It tells me to respect 15 and never be late to do what I have promised to．
1．A．watch B．clock C．bell D．time
2．A．hotel B．station C．bus stop D．airport
3．A．before B．from C．after D．to
4．A．though B．because C．and D．so
5．A．moved B．turned C．hurried D．flew
6．A．happy B．angry C．sorry D．lucky
7．A．look up B．look for C．look at D．look after
8．A．anything B．something C．nothing D．everything
9．A．is B．was C．does D．did
10．A．funnier ．louder C．happier D．lower
11．A．waking up B．giving up C．picking up D．putting up
12．A．always B．never C．often D．usually
13．A．you B．him C．them D．me
14．A．what B．that C．which D．who
15．A．culture B．friendship C．time D．family
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