When we donate blood, a small amount is usually taken in advance for at least ABO and Ph systems typing. If you are O+, the O is your ABO type and the + is your Rh type. It is possible to be A, B, AB, or O as well as Rh + or Rh-.
The ABO system was discovered by Karl Landsteiner in the early 1900s. He was awarded the Nobel Prize for his achievements. There are four basic types of blood in the ABO system: A, B, AB and O. Everybody is born with one of these four types of blood. We get blood type, just like hair color and height from parents. Because of the substances(物质) contained in each type, the four groups must be transfused carefully, If two different blood types are mixed together, it may put a person into an extremely dangerous situation. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. In an emergency, type O blood can be given because it is most likely to be accepted by all blood types, so it is often called the universal donor. However, there is still a risk. For the opposite reason, AB is sometimes called the universal receiver. However, because there can be so many reactions in the blood bank of the hospital.
There is a relationship between your blood type and your nationality. Among the Europeans, about 45 percent have type O while 42 percent have type A. The rarest is type AB. Other races have different percentage. For example, some American Indian groups have nearly 100 percent type O out of 100 donors in the world…

A.I. (人工智能) is just starting to become part of our lives, and books and movies have been talking about A.I. and robots for years. Mostly, in these books and movies,  the computers and robots turn out to be the enemies of  the human race. Here is a selection of some famous A.I.  movies..
2001: A Space Odyssey
In the movie 2001: A Space Odyssey, HAL is one of the first computers to talk like a human.  HAL is very frightening because it speaks in a calm voice as it goes on a killing spree (疯狂杀戮). When the astronauts attempt to hide in a smaller spaceship and switch off the microphones,  HAL uses a camera to read their lips and understand what the astronauts are saying.
The Terminator
In The Terminator, a computer thinks that its deadly enemies are human beings.  As a result,  the computer launches missiles (导弹) to start international wars and then builds killer robots to destroy the human race.
The Matr/x
In The Matrix,  a computer takes over the world and uses human beings for energy.   The computer keeps people alive by making them think that they are still living normal lives. A few brave rebels (叛逆者) decide to fight against the computer.
Star War movies
In the Star War movies,  computerised robots are used as servants and soldiers. R2-D2, a small cylindrical (圆柱形的) robot, and C-3PO, a tall talking robot, help some humans defeat the evil ruler,  Darth Vader,  in a dangerous battle between the forces of good and evil.
1, In the movie 2001: A Space Odyssey, the astronauts switch off the microphones to
A. prevent HAL hearing whom they axe calling
B. prevent HAL hearing what they are saying
C. force HAL to use a camera
D. force HAL to speak loudly
2. If you want to know how an intelligent computer uses human beings for energy, you should watch __
A. The Terminator.
B. 2001: A Space Odyssey'
C. Star War movies
D. The Matrix
3. R2-D2 and C-3PO stand for
A. the scientific forces
B. the natural forces
C. the good forces
D. the evil forces
4. What do the four movies have in common?
A. They all have the same ending.
B. They are about a similar theme.
C. They are all based on science fiction books.
D. They started heated discussions about A.I.

请根据下面需要志愿帮助的信息，找出能够为他们提供帮助的援助者。
A. Suppose World Cup will be held in Bejing and many people from other countries will come to visit China. The taxi drivers in Dongfeng Taxi Company think the way to show kindness is to be able to greet the foreigners in their languages. They need someone who can teach them languages and the best time is at night when they are not so busy.
B. Tim is so addicted to on-line games that he cannot concentrate on his study like before. Now he often misses school in order to play games, thus telling lies to his teachers and parents again and again, though he realizes what he does is wrong, he just can’t stop it. How badly he needs someone’s help.
C. Marie, a 44-year-old single mother of three, has to walk two miles to the nearest supermarket twice a week because she doesn’t know which bus to take. What’s worse, since she does not know words, she can not write out a shopping list. Also, she can only recognize items by sight, so if the product has a different label, she will not recognize it as the product she wants.
D. “ Help hand” organization will hold an event to help the starving children in Africa. The even starts in August and those taking part in will go without food for 30 hours. In this way, it is expected that money will be raised for the poor children.
E. “ Green Earth” cares a lot for the animals in danger. Still many people in the world don’t know much about the importance of animal protecting. This summer vacation a lot of events will be organized to call on people to live in harmony with our earth.
F. A group of young children in a remote village in southwest China are in great need of teachers. Because of the low salary, any teachers came and then went. The villagers hope to have a teacher who can stay for at least a year, because they know knowledge can make a different to the children’s future.
请阅读下列五个援助者的基本情况， 然后匹配相关信息：
【小题1】 Stephen: Last summer I went through a training program and became a literacy volunteer. When I began to discover what other people’s lives were like because they could not read, I realized the true importance of reading.
【小题2】 Ben: After graduation, I don’t want to apply a job at once. I plan to spare one year to help those who need help most and try my best to improve their lives.
【小题3】 Susan: I am a girl from England and has studied French for years. I am here in Beijing University studying Chinese. I hope the voluntary work will help me to get in touch with Chinese people and get to know about China. Although my study is busy, I can be free at night and at the weekends.
【小题4】 Tom: Since I myself have overcome a lot of difficulties in my life, I understand young people’s problems and I know how to listen patiently to others and offer some advice. I am working now in the daytime so I can only spend two to three hours a day at night to help others.
【小题5】Liza: I burst into tears when I saw the programme. What a bad sight! They are only bone and skin left. They are dying. I realized how lucky I am with enough food and a good chance to get education. The summer vacation is coming and I hope I can do something for them.
提供援助者                        接受援助者
1. Stephen                            A
2. Ben                               B
3. Susan                              C
4. Tom                               D
5. Liza                               E
Choose the most suitable heading from A – F for each paragraph.

根据所给的首写字母和上下文进行课文内容填空

Daisy had always l1.to help endangered species of wildlife. One day, she was taken to a d2.land where he met an antelope. When she heard w3. the animal told her, she b4. into tears. Then she wanted to go to a place where there was some wildlife protection. This time, she saw an elephant. At last, she came to a thick rainforest. Daisy was a5. to see a monkey rubbing itself with a millipede insect. The monkey said: “It c6.a powerful drug which a7.mosquitoes. You should pay more a8. to the rainforest where I live and a9. how the animals live together. No rainforest, no animals, no d 10..”