题目内容
and even in the air !
Like people,germs move around the world. They fly with us on planes. When food, clothes, and
other things travel around the world,germs travel,too. Some germs are safe,but some are dangerous.
Germs cause illnesses like colds and the flu.
Warmer Weather Brings Germs
The world's weather is changing. Cooler countries are getting warmer, so insects from hot countries
can move there. Some of these insects,like mosquitoes,carry dangerous germs. These germs cause
headaches, fever, and can even kill people.
Under Your Skin
Your skin protects you from germs. It stops some germs,but not all. They can enter your body when
you eat,or when you have a cut. Germs are on your hands, too. They enter your body when you touch
your eyes, nose , or mouth.
Fighting Germs
Your immune system(兔疫系统) protects you, too. When germs get inside your body,your immune
system finds and kills them. Special cells (细胞) move around your body and fight germs. They help you
stay healthy. Other cells make antibodies. Antibodies help your body
find and stop germs.
What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away.
B. carry germs
C. protect germs
D.love germs
B. hot countries
C. everywhere
D. the world
B. There are more germs in cold places.
C. Soap can kill all germs.
D. Germs can get into your body.
B. They find and develop germs.
C. They help protect us from germs.
D. They carry dangerous germs.
B. Weather Is Changing
C. Skin Stops Germs
D. Germs Are Developed
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