第一部分 阅读理解（共两节，满分40分）
第一节（共15小题；每小题2分，满分30分）
阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
A
Have you ever been ill? When you are ill, you must be unhappy because your body becomes hot, and there are pains all over your body. You don’t want to work and you have to stay in bed, and you will feel very sad.
What makes us ill? They are germs. Germs（细菌）are everywhere. They are very small and you can’t find them with your eyes, but you can see them with a microscope(显微镜), we will see a lot of them in it. So your father and mother will not let you drink dirty water.
