3.
Complete the passage with proper words according to the Chinese or the words given. And answer the question.
It is a cold and dry winter morning. When you wake up, you feel that your (喉咙) hurts. You begin to sneeze and later you may (咳嗽). You must have a cold! Wait a moment. Could it just be a common cold or the flu(流感) that's been going around?
A cold gives you a runny nose. But it's usually easy to deal with. Some take the (药) while others drink herbal tea or chicken soup.Usually you feel better after a week.
On the other hand, the flu can be much (dangerous).It usually gives you a (发烧). Sometimes it can cause (死亡). Don't worry. If you get a flu vaccine(疫苗), it can stop you from (get) the virus(病毒). Flu vaccines work by giving the body a small amount of flu viruses. This causes your body to develop antibodies(抗体). So next time you get the flu, the antibodies should help you.The flu virus (change) every few years. Therefore, there are so many types of flu, such as H1N1 and H5N1. The antibodies for one type of flu can't help us against all types of flu. That's why we need to get the vaccine every year.
However, good health habits may also help stop you from developing a cold or flu. Washing your hands often (help) stop you from getting viruses. It's also important (get) regular exercise and eat healthy food.
How can we protect ourselves from getting a cold or flu?