题目内容
下面文章中有5处(第61～65题)需要添加小标题。请从以下选项(A、B、C、D、E和F)中选出符合各段意思的小标题。选项中有一项是多余选项。
A. Attention must be paid to environmental factors.
B. Principles of curing cancers.
C. It will take long to find perfect cures.
D. An important discovery in the research.
E. The causative factor of cancer is very clear.
F. The survival rate differs among patients with various cancers.
61. ____________
“I have great confidence that by the end of the decade we’ll know in vast detail how cancer cells arise,” says microbiologist Robert Weinberg, an expert on cancer. “But,” he cautions, “some people have the idea that once one understands the causes, the cure will rapidly follow. Consider Pasteur. He discovered the causes of many kinds of infections, but it was fifty or sixty years before cures were available. ”
62. ____________
This year, 50 percent of the 910,000 people who suffer from cancer will survive at least five years. In the year 2020, the National Cancer Institute estimates, that figure will be 75 percent. For some skin cancers, the five-year survival rate is as high as 90 percent. But other survival statistics are still discouraging—13 percent for lung cancer, and 2 percent for cancer of the pancreas (胰腺) .
63. ____________
With as many as 120 varieties in existence, discovering how cancer works is not easy. The researchers made great progress in the early 1970s, when they discovered that oncogenes, which are cancer-causing genes, are inactive in normal cells. Anything from universe rays to radiation to diet may activate an inactive gene, but how remains unknown. If several oncogenes are driven into action, the cell, unable to turn them off, becomes cancerous.
64. ____________
The exact process involved is still mysterious, but the likelihood that many cancers are initiated at the level of genes suggests that we will never prevent all cancers. “Changes are a normal part of the evolutionary process,” says oncologist William Hayward. Environmental factors can never be totally eliminated; as Hayward points out, “We can’t prepare a medicine against universe rays.”
65. ____________
The prospects for cure, though still distant, are brighter. “First, we need to understand how the normal cell controls itself. Second, we have to determine whether there are a limited number of genes in cells, which are always responsible for at least part of the trouble. If we can understand how cancer works, we can reduce its action. ”
CFDAB
请阅读下列应用文及相关信息，按照要求匹配信息，并把答案填涂在答题卡的相应位置上。填涂选项中有一项为多余项。
下面文章中有5处（第71~75题）需要添加小标题，请从以下选项中选出符合各段意思的小标题，并在答题卡上将该项涂黑,选项中一项为多余选项．
| A．Slow Down Your Life |
| B．Escape Now and Then |
| C．Separate Your Actions |
| D．Allow Yourself to Be Weak |
F． Stop Expecting Everything to Be Perfect
How to Simplify Your Life
Less is more．This is why we say: reduce things by half instead of doubling them, get rid of junk instead of piling it up, relax instead of stressing, slow down instead of speeding up．Apply these principles in your everyday life in a conscious way．You will then find yourself well along on your journey to simplification．
1．___ _______．
When you concentrate on one task, you find you have energy that you didn't even know you had．Just imagine: you are at a fair and you have to carry two heavy pigs over 100 yards．If you keep grabbing one and then the other, it will take forever, because one of them will keep slipping out from under your arm and running off．But if you tie one pig in a place, pick up the other, gather all your strength and make a dash for the finish line, pause for a moment, run back and get the other one, and with great determination, carry the second pig to the finish line, then you can be sure of success．
2．__________．
The pressure at work is on the increase in all occupations．In the modern nuclear family, the expectations that formerly would have been shared among all the relatives are now concentrated on the individual partner．
If you have the feeling that 24 hours per day are not enough for all the things you need to do, then it’s not because the day has too few hours, but because you have too many activities．A simple fact that overloaded people often tend to forget．The solution is equally simple: refuse to accept so many work assignments in your private life or your working life．
3． ______．
“I can handle stress” is regarded as a positive statement in the world of work．People who can handle stress are given more and more to cope with — until one day they break．
Pay careful attention to the signs that tell you that you are under more stress than you can cope with．These signals came from various areas of life．You become ill, or your work efficiency decreases．
If you have any of these symptoms, change your life goals and decrease your tolerance of stress．Say quite openly, "I can't manage that．"
4． _____．
"If only I were slimmer, more beautiful, richer, cleverer, then I would be happier．" This is a dream that makes a lot of people ill, depressed, and unhappy．Life has its flaws, defects, comets, and edges．Only those who accept this reality can lead a really full life．
Of course there are activities in which errors are dangerous; driving a car, crossing the road．But life doesn't consist entirely of these things．In among them there is a lot of room for small and large mistakes．
5．___________．
Successful people all have their own places where they can withdraw in order to work．Find out which places improve your creativity．For me it's the train．When I know that I'm going to be traveling for four hours without phone calls and people knocking on my door, I find my mind is free and I can read or write complex articles．There can be problems working on the train, of course: if the person sitting opposite you keeps talking away, or if train trips make you tired (some people fall asleep after a few miles)．