Please finish task 2 and task 4 of Unit 2, and upload the photos of your answers . Please analyze the organization of the script of task 6 in Unit 1, and we will check the answers in class. The script is as follow: Every year about 17 million animals are used in Laboratory experiments. But in many countries today, a difficult question is being asked: Do we have the right to use animals in this way? People who are for using animals in research argue that the use of animals in medical research has many practical benefits. Animal research has enabled researchers to develop treatments for many diseases, such as heart disease and depression. It would not have been possible to develop vaccines for diseases like smallpox and polio without animal research. Every drug anyone takes today was tried first on animals. Future medical research is dependent on the use of animals. Which is more important: the life of a rat or that of a three-year-old child? Medical research is also an excellent way of using unwanted animals. Last year, over 12 million animals had to be killed in animal shelters because no one wanted them as pets. However those who are against it point out that the fact that humans benefit cannot be used to justify using animals in research any more than it can be used to justify experimenting on other humans. Animals suffer a lot during these experiments. They are forced to live in small cages, and they may be unable to move. Much of the research that is carried out is unnecessary anyway. Animals have the same rights as humans do — to be able to move freely and not to have pain or fear forced on them. Researchers must find other ways of doing their research, using cell culture and computer modeling. There should be no animals in research laboratories at all.