[单项选择]Passage OneA. It keeps blood vessels from being blocked.
B. It speeds up their recovery after surgery.
C. It increases the blood flow to the heart.
D. It adjusts their blood pressure.

[填空题]Neither rain nor snow keeps the postman from delivering our letters which we so much look forward to receive. A. keeps B. which C. so much D. to receive

[单项选择]
It keeps your insides from falling out. It helps you warm up when you are cold, and it can cool you off when you are hot. It lets you feel things by touch.
What is this Your skin, of course! What does your skin ask for in return for all the wonderful things it does Just a little care! So let’s learn how to take good care of our skin.
Like the heart and stomach, your skin is an organ(器官). In fact, it is the largest organ in your body. Unless there’s a problem, you may not think about your skin very much. But skin has an important job to do.
Your skin is protecting you. Your skin keeps you from getting sick. When you take care of your skin, you are helping your skin do its job. Taking care of your skin today will help you have no problems in the future.
Clean skin is happy skin! One simple way to take care of your skin is to keep it clean. Keeping your hands clean is very important. When washing your hands, use warm wa
A. people don’t often care much about their skin
B. skin is an organ
C. there would be nothing wrong with your skin
D. skin is not important at all

[单项选择]　　About nine men in every hundred 61 from color blindness in some way; women are luckier—only about one in two hundred is affected in this manner. Perhaps, after all, it is safer to be driven by a woman. There are different forms of color blindness. In some cases, a man may not be able to see deep red. He may think that red, orange and yellow are shades of green. Sometimes a person cannot 62 the difference between blue and green. In 63 cases, an unlucky man may see everything in shades of green--a 64 world indeed. Sometimes color blindness can be dangerous. For example, when in the forest 65 soldiers use 66 to signal to 67. A green light may mean" 68 "and a 69 light may mean "Danger, keep back." You can seen what will 70 if somebody thinks that is green.
A. fall ill
B. suffer
C. get
D. lose

[单项选择]The parents of a child being discharged from the day surgery center after insertion of tympanostomy tubes ask the nurse. "What will happen to the tubes in my child’s ears" Which of the following would be the nurse’s best response
A. "The tubes usually dissolve on their own in about 1 year. "
B. "The tubes must remain permanently in place. "
C. "You’ll probably see them fall out in about 6 months. "
D. "Call for an appointment to have them removed in about 6 months. "

[简答题]S1. Being different from a concert , "Snow Wolf Lake" is ______.