题型:任务型阅读 题类:常考题 难易度:普通
山西省大同市2017-2018学年度高一下学期英语期末统考试卷
Do you know that you have “body amour(防弹衣)”? Yes, you do. Here are three protective body parts and how they work.
Skin
Your skin might not feel much like the outside of an armoured tank, but it really gives you a lot of protection. Skin also protects our bones, muscles and insides by covering them up. Our skin may not be that tough when we touch it, but it can be very tough when it counts. The skin may get scraped(擦伤)and become bruised(青肿的), but it helps to keep our bones safe so that they don't break easily.
Eyelashes(眼睫毛)and Eyelids
The little soft eyelashes attached to our eyelids are constantly working to blink(眨眼)away dust that would hurt our eyes. Our eyelashes and eyelids use reflex actions to close when danger comes near. Actually if we had to tell our eyelids to close, we could not do it fast enough to offer any real protection for our eyes. When our eyes and brain notice something that might be dangerous, they use lightening fast reflexes to close..
Hair
This is a kind of body amour that is very useful, since the sun shines down on our heads all day. Without this covering of hair it would be easy for us to get sunburnt on the top of our heads. We lose about 50 individual hairs from our scalp every day. But most of us have lots of new ones that are replacing them.
A. Think about what happens when we fall.
B. This protection keeps our eyes safe and sound.
C. But you might not know how the armour works.
D. Some of your personal armour might affect you.
E. The hair on our heads protects our soft scalps(头皮).
F. By closing eyes, your eyelashes block out light closer to you.
G. Our skin is the biggest organ in our entire body and it helps to keep us safe.
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