(Q).
The immune system is the body's defender. It identifies, tracks down, and destroys troublemakers before they can hurt the body. Those troublemakers may be, for example, bacteria from a cut or splinter, a measles germ, a cold bug, or even a cancer cell.  These invaders try to take over our tissues and feed off our bodies' nutrients. If they succeed, we become sick or, sometimes, even die. It's the job of our immune systems to destroy these invaders before they destroy us. Say you picked up a flu virus last week. Perhaps it entered your body through a cut, from a drinking glass, or from the air you breathe. Of course, you didn't feel it, but the virus made its way into your bloodstream. As soon as it entered your body, it began to reproduce. Viruses have only one goal: to take over your cells. Once inside your body, viruses try to enter cells and disrupt their normal work. If left alone, these viruses would hurt so many cells that you would weaken, or worse, get a serious illness.  But this flu virus should not be so complacent as it seems to be. As it reproduces in your bloodstream, the virus is met by a certain kind of white blood cell, the lymphocytes. The  _ are the foot soldiers that keep you alive.  The number of lymphocytes in your body is hard to imagine. Thousands of them could fit in the period at the end of this sentence. Your body holds about a trillion --that's 1,000,000,000,000 of them, or about 3,000 in every drop of blood.  _   Some of these lymphocytes pass through a small walnut-sized organ called the thymus. The thymus is the base of the neck. Here, special hormones turn lymphocytes into fighting cells, called T cells. T cells have one terrific talent: They can tell the difference between friend and foe; what should be in our bodies and what shouldn't. They do not affect the body 's healthy cells. Yet they attack everything that is foreign to our bodies, such as germs, transplants, and even our own cells which have become abnormal, as in the case of cancer. The last sentence in para 5 "since you began reading this sentence,over 800,000 of them have been created and destroyed" implies that   _  . A) because you read this sentence,a large number of lymphocytes have been consumed B) .this sentence contributes to the increase of the number of lymphocytes in your body C) the number of lymphocytes in your body is extremely large D) you would not realize that lymphocytes reproduce themselves rapidly but for this sentence
(A).
C


(Q).
One day in Australia I decided to try hang gliding  . I went up with an instructor, floated and flew above the waves for about 20 minutes, then landed on the sand. His wife was there to meet us so she could drive us back. Their son, about 8 years old, was with her. As the four of us were standing there a woman named Sue came up with a big smile. She gave a warm hello to the couple, and then asked the boy, "How's school, mate ?"With a troubled look on his young face, the boy quietly said, "Not good." In response Sue exclaimed  ,sounding surprised , "Not good ?I bet it is fun." Then she turned her attention back to the boy's parents. They started talking about some of their friends, smiling and laughing . Meanwhile, all three of them completely ignored the boy . But I watched his head drop.I watched him turn away from the group, take a few steps ,and just stand there ,alone. I still find it hard to believe that anyone could miss a child's reaction that completely. I wondered how the three adults could stand there and laugh while that boy stood there alone, troubled not only about school but also that no one was interested in his troubles.  Maybe his father tried to distract  his son with risky sports. As long as you are active, you can't feel your emotional  pain. But what if his son is not interested in sports? These were what most people would say are "good parents" . But I say that what they did was child abuse. It was total emotional neglect at that moment . And that is why I am writing this story. To remind everyone that it is little interactions  with children that make a difference in their lives and in society. Why does the author write the text? A) To accuse the mindless adults. B) . To show his sympathy for a boy. C) To describe an interesting scene. D) To ask parents to communicate with children.
(A).
D


(Q).
Attention to detail is something everyone can and should do-especially in tight job market. Bob Crossley,a human-resources expert notices this in the job applications that come across his desk every day."It's amazing how many candidates eliminate   themselves,"he says."Resumes   arrive with faults.Some candidates don't bother to spell the company's name correctly.Once I see a mistake,I refuse the candidates,"Crossley concludes,"If they cannot take care of these details,why should we trust them with a job?" Can we pay too much attention to details?Absolutely not. Perfectionists  struggle over little things instead of something larger they work toward."To keep from losing the forest for the trees,"says Charles Garfield,the professor at the University of California,San Francisco,"We must constantly ask ourselves how the details we're working will influence the larger picture.If they don't,we should drop them and move to something else." Garfield compares this process to his work as a computer scientist at NASA."The Apollo II moon launch was slightly off-course 90percent of the time,"says Garfield."But a successful landing was still likely because we knew the exact position of our goal.This allowed us to make adjustments as necessary."Knowing where to go helps us judge the importance of every task we undertake. Again and again,we see that by doing little things within our grasp well,large rewards follow. From the passage,we can infer that a perfectionist will  . A) change their goals as the situations change B) lose their jobs by paying too much attention to details C) pay attention to details as much as to their major goals D) pay attention to details more than their major goals
(A).

D