【推荐1】Stomach flu is a common disease. It spreads easily, which makes it hard to avoid. That’s e    1     true if someone in your family has it. Stomach flu is caused by a virus, but not the same one that causes regular flu. Because it’s caused by a virus, there’s no medicine to make it go away. But there are some things you can do to avoid catching it.

You can p    2     stomach flu by washing your hands often. Use hot water and soap, and spend time scrubbing. Using hand sanitizer is better than nothing, but it is not very effective against stomach flu. That’s because hand sanitizer mostly kills bacteria, not viruses.

The virus that causes stomach flu is hard to kill. Normal cleaners won’t always work. But cleaning your house can stop you from catching it. So put bleach (消毒水) and water together, and use that to clean surfaces. If someone in your family is sick, r    3     to clean things that person has touched.

Dishwashers are better at killing viruses than washing dishes by hand. That’s because they keep dishes hotter for longer. Many viruses can stay a    4     in your washing machine. So do laundry with hot water and use bleach, if possible. You may even want to run the washing machine with no clothes just hot water and bleach. This will kill any germs in it.

If you do get the stomach flu, drink as much water as possible. Other clear l    5     are good, too. You probably won’t want to eat much. But when you do feel ready to eat, try bananas, rice, apple sauce or toast.

Once you’re feeling better, don’t return to work or school right away. You can s    6     spread the disease for a few days after you feel better. If you have a fever, wait at least 24 hours after it ends before going out. This will help protect other people from getting sick.

Stomach flu is awful, but by f    7     these tips, you can help stop it from spreading.

The Earth is a wonderful place. About 70% of the Earth     1     (be) covered (覆盖) by water. Under the water, it’s     2     amazing world. You can see a lot of sea animals     3     whales, dolphins and sharks. Whales are the largest animals on Earth. Dolphins are one of the cleverest animals. Sharks are very     4     (danger).

The ocean gives us wonderful     5     (plant) and animals to enjoy. It gives us food     6     (eat) and oil to burn. The ocean is very important to all animals     7     Earth,     8     we human beings are doing something bad to it. We put our rubbish into the sea. This     9     (pollute) water. We must do something to keep sea water clean and stop     10     (throw) a lot of rubbish into it. It’s our duty to make a better sea world.

I have lived in this beach city for more than sixteen years. Over the past sixteen years, great     1     have taken place.

First of all, the city has become much     2     than before. There used to be rubbish nearly everywhere in the city. The rivers that run through the city used to be dirty and smelly. There was     3     but rubbish in the black water. Thanks to the “civilized city” campaign (运动), the quality of the residents (居民) has     4    , so has the sense of protecting the environment. Now, you can     5     see people litter about. From morning till night, you can see cleaners are busy working to keep the city clean.

Secondly, the whole city has taken on a new look. The city government set up the Shell Theater in the year of 2016 and now it has become a symbol of this city. Hong Kong-Zhuhai-Macao Bridge was open to traffic on Oct. 25th of 2018 and it     6     with three cities. It is much more     7     for the local residents and tourists to travel by land instead of by sea. All the roads in this city have been rebuilt and widened. Besides,     8     old town has been repainted and decorated so that it doesn’t look shabby (破旧的) any more.

Last but not least, the economy of this city has increased excitingly.     9     the help of the high-speed trains, this beach city has greatly improved its ability to attract more investment (投资). Without doubt, the     10     of this city will be brighter.