教师解析

Diseases are the things that people want to get away from. A healthy body is the guest-chamber of the soul; a sick, its prison.

Who are “disease detectives”? What do they do?

What are the ways of “detecting” that some disease detectives employ to find out the cause for an epidemic in a certain region?

What progress has been made in organ transplants? How does the knowledge of genes and DNA help the doctors in a case of organ transplant?

Now look at the first passage. Read it through quickly and mark out words you are not familiar.