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(10分)据报道:2011年12月31日深圳宝安沙井39岁患者陈某某,被诊断为人感染高致病性禽流感(H5N1)而引发的多脏器衰竭而死亡。禽流感再一次又引起了人们的高度关注。右图是高致病性禽流感病毒H5N1侵入人体后发生免疫反应的图解,图中A、B、C为有关的物质或结构。请据图回答问题:

(1)物质B的化学本质是 ______________。
(2)物质A为____________,是由效应T细胞分泌,又能诱导生成更多的效应_________ 细胞,这是一种____________调节机制。  
(3)效应T细胞与靶细胞密切接触,激活靶细胞内的_____________,并使其通透性、渗透压发生改变,最终___________,释放出病毒与抗体结合,使病毒失去_________________________宿主细胞的能力。
(4)T细胞由__________分化而来,成熟于______________,并随血液和淋巴在体内流动。T细胞在人体免疫应答中除具有图示增殖分化的功能外,还能 ______________。

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B)根据短文内容及首字母提示,填写所缺单词。

It happens to most of us at times as we try to get through our workday. When sitting at work, we suddenly f  1   a bit headache. But don’t worry; there are some simple things that you can do to ease(减轻) a headache at work w  2   medicine.
Drink a bottle of warm water. Many people do not r  3   that the dry air in their working place can be a danger because of the lack(缺少) of water.
Eat a h  4   snack. During a busy day, it is easy to f  5   to eat, have a snack with much protein(蛋白质) which will improve your e  6   and quickly get rid of the hunger that is c  7   the headache. A cup of coffee or a piece of chocolate can be just the thing that you n  8   to ease your headache fast and get back on your way to a great day at work.
Step away from what you are working on for five to ten m  9  . Often, your headache is from your too much a  10   paid to one thing. This can be a computer screen or even one project. The best thing would be to go outside for your eyes to get some natural light.  

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B)根据短文内容及首字母提示,填写所缺单词。
Be a potato, but be the best
A young college student thought that he chose the wrong major (专业) at a common college, so he drank every day and didn’t study at all. He b  1   more and more discouraged.
But he was never a  2   from Professor Yang’s biology (生物) class. He liked the course. Besides, Yang’s class was so i  3   that he always listened carefully, never caring about w  4   the other students were paying attention or not in class.
Once he put a note in the homework he handed in, saying: “Professor, it is said that today’s college students are c  5   than potatoes. Do you agree?”
That day Professor Yang sent for him after class. When he came, he f  6  the professor at a table with food on it. They drank happily over their meal.
When they became half drunk, the professor took out a small potato that was sprouting (发芽的). “Do you know how much this c  7 ?” he asked the young man. “It’s soft but poisonous. N  8  will take it even if it’s free. ” He then threw the potato away.
The professor then showed him another potato. It was half the s  9  of a football and perfectly round. “This potato is organic (有机的). It is not only large and fresh but also free of pollution. People are in need of such k  10   of potatoes and they’re quite expensive.”
The young man was impressed by what he’d heard. “Be such a potato,” said the professor.

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B) 根据短文内容及首字母提示,填写所缺单词。
One cold midnight after the birthday party of Tom’s, my husband Jack and I were driving home w  【小题1】   suddenly our car stopped. “We’ve covered half the way.” I said. “There must be something wrong with the car. I can’t start it again,” said Jack.
What a car! We got out to look around f  【小题2】   help, but could there be any person at s【小题3】   an hour? It was dark and nothing could be done to make it go. We h  【小题4】  to walk home. We knew it would take us 2 hours to get home on foot, and we were so tired. But what else could take us home? It was so c  【小题5】   in the car. At once we began to walk home.
We were at the door at about 2:30 when I r  【小题6】   that I had left the key in the car! How  s   【小题7】   it is! “Break the window and climb in.” said Jack. He picked up a stone, broke the window and was ready to climb when someone from behind caught Jack by the a  【小题8】  . It was a policeman!
“What are you going to do, man?” he asked. “Come with me to the police s 【小题9】  , you two!”
I told him the whole story. At last he understood what I had said and I was a  【小题10】  to get in.
It was three o’clock in the morning!

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B.根据短文内容及首字母提示完成短文(每空一词)
Recently a lot of people have been punished for speaking on their mobile phones while driving. S  1  on the phone requires concentration(集中,专心) and takes a driver’s  a   2  from the road.If you drive after you have consumed alcoholic(含酒精的) drinks, you are a   3  the law and risking your own life as well as the lives of o  4  . If you are with someone else who has been drinking alcohol, even i  5 they had just a glass of beer, do not a  6  them to drive.
There is a fact that driving too fast through city streets is very irresponsible and d  7   . Our city streets are always b  8  with people, cars and bicycles. Drivers have to take the responsibility(责任) to be c   9  _ for people crossing the road, especially older people who may walks   10  and young children who may not look before stepping into the road.

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