The world of out-of-doors is full of secrets. And they are so interesting that quite a lot of people are busy studying them. All around us are birds, animals, trees and flowers. The facts about how they  1  and grow are as interesting as anything could be. Do you know that one of the greatest presidents of the USA spent hours and hours  2  birds? A businessman who lives near New York city became so  3  in insects that he began to collect them. He now has more than one thousand different kinds carefully  4  in glass boxes. Come then with me, and I will help you find some of nature’s secrets. Let us go  5  through the woods and fields. Here we shall find how a rabbit tells the other rabbits that there is danger. We shall  6  a mother bear and her young ones as they look for  7  and get ready for winter sleep. We shall watch bees dancing in the air to let other bees know  8  they can find food. I will show you many other interesting things, but the thing that I can  9  you is to keep your eyes and ears  10  when you go out of doors. Nature tells her secrets only to people who look and listen carefully.

1.

A.bear

B.live

C.speak

D.fly

 

2.

A.studying

B.eating

C.learning

D.finding

 

3.

A.friendly

B.carefully

C.busy

D.interested

 

4.

A.locked

B.kept

C.put

D.filled

 

5.

A.near

B.quickly

C.quietly

D.politely

 

6.

A.hear

B.follow

C.catch

D.help

 

7.

A.food

B.fruit

C.vegetables

D.water

 

8.

A.how

B.why

C.where

D.when

 

9.

A.make

B.pass

C.give

D.teach

 

10.

A.closed

B.open

C.safe

D.clean

 

Germs(细菌) are everywhere. You can’t see them, but they are on your desk, on your computer, 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(蚊子), carry dangerous germs. These germs cause headaches(头疼), 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(进入) your body when you touch your eyes, nose, or mouse.

Fighting Germs

Your immune system(免疫系统) 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(肥皂) and water. Soap kills many germs, and water washes them away.

1.According to the text, insects ___________.

A.kill germs

B.carry germs

C.protect germs

D.love germs

2.The underlined word “there” refers to _______.

A.cooler countries

B.hot countries

C.everywhere

D.the world

3.What do antibodies do?   

A.They kill germs and wash them away.

B.They find and develop germs.

C.They help protect us from germs.

D.They carry dangerous germs.

4.Which can be the best title for this text?  

A.Germs Are Everywhere

B.Weather Is Changing

C.Skin Stops Germs

D.Germs Are Developed

 

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