45．A．look at                B．think of               C．talk about               D．play with

A

Do you know cold is not a serious illness，but it spreads（传播）very fast．Colds are caused by viruses（病毒）．A sneeze（喷嚏）or a cough may take viruses from one person to another．Cold viruses can also be spread by objects，such as telephones and cups．When you have a cold，you will have a headache，a sore throat，a fever and so on．Here are some tips to stop colds from spreading．

●Wash you hands a lot．

●Don't sneeze or cough in front of others．

●Have a rest if you don't feel well．Don't study late at night-colds are always worse then．

●Drink lots of water or juice．

●Don't play sports or games for a while it's really hard to run around with a running nose．

●Don't have your friends come to visit you or visit someone who is sick．

44．A．helps                   B．makes                  C．stops                      D．asks