Do you often grab（抓起） something to eat after you get a phone call？Do you often brush your teeth as soon as you pick the brush up？Do you ever touch your food or drink after paying money？If so，you may need to think twice.
    Mobile phones are a great way to talk with friends，but they are also great places for bacteria （細菌） to live on.A study shows that there are as many bacteria on your mobile phone as on your toilet（坐便器） seat.People find about 2，700 to 4，200 units of bacteria on each one of the phones.This means it is very important to clean your phone.
    Toothbrushes can also be dirty when you leave them near the toilet.Studies show that every time you flush（抽水沖洗） the toilet，bacteria can stay in the air for at least two hours.These bacteria may make your toothbrush dirty.It is better to put your toothbrush far from the toilet.It is also important to buy a new toothbrush every three months.
    Everyone loves money，but no one loves the bacteria that live on the notes（鈔票）.Scientists found there are over 135，000 bacteria on a note.The way to solve the problem is to try to wash your hands as often as possible.
    Although bacteria can be everywhere，most of them are harmless（無害的）.Don't worry too much about them.

Dirty things around us	Findings	（1） Ways Ways
Mobile phones	The bacteria on each mobile phone are（2） as many as as many as those on a toilet seat. There are about 2，700 to 4，200 units of bacteria on every phone.	Clean your phone.
Toothbrushes in the bathroom	Flushing the toilet can （3） keep keep bacteria in the air fr at least two hours. These bacteria can make your toothbrush dirty.	Don't put your toothbrush（4） near near the toilet. Get a new toothbrush every three months.
Notes/Bills	（5） More More than 135，000 bacteria live on every note or bill.	Try to wash your hands as often as possible.