What do you think is the most common illness? Do you get ill sometimes? We are lucky to live now because there are lots of medicines to make people better．

     The most common illness in the world is the cold．It often begins with a sore throat．Then you sneeze and your nose runs．You usually have a headache，too．Often you cough later．It's not a very bad illness but you can feel quite ill．   

     There isn't a cure(治愈)for a cold but you can take medicines to make you feel better．For instance aspirin(阿司匹林)can stop your headache．It is good to rest and to drink a lot of water，too．A doctor once said to me，“With the proper medicine a cold will last for seven，days．With no medicine it will go on for a whole week!”

     Where does our medicine come from? A long time ago people knew that some plants made them feel better．They ate the leaves，the roots，the I fruit or the seeds of those plants．For instance the juice of lemons makes a sore throat feel better．

     In modern times scientists have looked at these plants and found out which chemicals(化学物质)are in them．Many of our medicines today are made from those chemicals．   

     There are some illnesses which we can't cure yet．And nobody has found a cure for old age．But because of modern medicines most people now live longer than their grandparents．   

    Travel can teach kids more than a textbook. Travelling with kids is good for them. They can find new interests. Travel makes information alive for kids, and makes it much more exciting than studying textbooks or doing experiments in the laboratory. While travelling, they learn how to deal with new situations, and communicate with other people. They learn patience, because sometimes it takes a long time to get to some exciting or interesting places.

    I've been travelling since I was seven years old. For me, to stop travelling would be like taking something away from my soul（灵魂）. I can't live without travelling. Some people think it's hard to travel after having kids. But in my opinion, when people become parents, it doesn't mean they can't travel any more. My children have been travelling since they were three weeks old.

    Bringing a new life into the world comes with many responsibilities（责任）and I'd love to be a good mother. One of my duties is to educate my children. I'm so thankful that my parents took me on family trips when I was young. I've learned that the outside world is more colorful than the little one I was living in. Of course, I want to pass these travel experiences on to my children.

    I value the memories I have travelling with my children. I'm sure they will always remember them in their lives.

B

    It is important for each child to get enough sleep every day．Here．we'll learn more about that．{#blank#}1{#/blank#}

    It usually depends on their age．Newborns (新生儿)of 0 to 3 months should sleep for about 18 hours a day．Babies of 4 to 11 months should start to sleep through the night，for 9 to 12 hours at a time．{#blank#}2{#/blank#}Children of 3 to 5 years should get 11 to 13 hours a day．Children of 6 to 13 need 9 to 11 hours of sleep．Teenagers of 14 and up need 8 to 10 hours of sleep．{#blank#}3{#/blank#}

    Set a strict nap timetable(小睡时间表)．Younger children should take a short sleep during the day．Even older children can benefit(得益于)from late—afternoon naps if they don't get enough steep at night．{#blank#}4{#/blank#}

    Pay attention to(注意)screen time．Remember to ask children to tum off the television and the computer an hour before they go to bed．If possible，get them out of their bedrooms since the light(光)from the screens can make sleep a difficult job．

Get children movin9．{#blank#}5{#/blank#}Running around and playing sports are great, but children can move in other ways．too．They can take a dog for a walk or go to the park—just get them out of the house and get them moving．