题目内容：

阅读理解。

Your body is special – no two people in the world are alike , Although you are different from everyone else , you have exactly the same body parts as the people around you , doing different jobs that keep all of us alive .

What is inside my head ?

Your head houses the most valuable part of your body – your brain . As you are reading , your eyes send pictures to your brain which makes meaning from what you see . Your brain helps you to remember and think , and makes sure your body is doing what it should .

What is my skin(皮肤) for ?

Your skin covers your body . In most parts of your body , the skin is just as thick as half a centimeter . If you have your skin cut , it will have a quick cure and stop viruses from getting into your body . Your skin also helps you feel the heat and coldness of the environment around you . Hair grows from inside the skin . When you feel hot , extra heat comes out through your skin . As a result , your body temperature drops .

How do I move ?

Muscles(肌肉) are found in most parts of your body . They work with your bones to help you move – whenever you cry or smile , eat or speak , walk or dance , etc .

Why do I breathe ?

Your body needs to take in oxygen from the air and give out the unwanted carbon dioxide in the body . When you breathe , air comes through your nose and mouth into your lungs(肺) where oxygen flows to different parts of your body .

What makes me sneeze ?

When dust or a strong smell gets into your nose , you sneeze . This is the way your body cleans up the dust in your nose . Your lungs push out the air and try to clear your nose .

What does my heart do ?

Your heart is a very special muscle . It is slightly bigger than your fist (拳头) and grows bigger as you do . If you place your hand on your heart , you will feel your heart beating which forces blood to move around your body .

1.The underlined word “houses” in the passage probably means          .

A. stores                B. locks

C. creates               D. builds

2.If you have no skin covering your body , what would happen ?

A. Extra heat can only stay inside our body .

B. Viruses can’t get into our body easily .

C. We can’t feel the changes in temperature .

D. Our body can be guarded by our hair .

3.What is the true fact about your body ?

A. Our heart is the same size from birth .

B. We take in carbon dioxide to stay alive .

C. Our muscles stop working when we nod .

D. Sneezing is a way to clear our nose .

4.Which is the best title for this passage ?

A. What Your Body Needs       B. How Your Body Works

C. Why Your Body Grows        D. When Your Body Moves