D
The advantages and disadvantages of a large population have long been a subject of
discussion among economists. It has been argued that the supply of good land is limited. To feed a large population, poor land must be cultivated and good land made full use of. Thus, each person produces less and this means a lower average income than could be obtained with a smaller population. Other economists have argued that a large population gives more opportunities for specialization such as ports, roads, and railways, which are not likely to be built unless there is a big demand to justify them.
One of the difficulties in carrying out a world-wide birth control program lies in the fact that official attitudes to population growth vary from country to country depending on the level of industrial development and the availability of food and raw materials. In a developing country where a vast expanding population is pressing hard upon the limits of food, space and natural resources, it will be the first concern of the government to place a limit on the birthrate, whatever the consequences may be. In a highly industrialized society the problem may be more complex. A decreasing birthrate may lead to unemployment because it results in a declining market for products. When the pressure of the population on housing declines, prices also decline and the building industry is weakened. Faced with considerations such as these, the government of a developed country may well prefer to see a slowly increasing population, rather than one which is stable or in decline.
54．According to the first paragraph, a smaller population may mean______ if land is limited.
A．lower productivity, and a lower average income
B．lower productivity, but a higher average income
C．higher productivity, and a higher average income
D．higher productivity, but a lower average income
55．In a developed country, people will perhaps go out of work if the birthrate_______.
A．goes up B．goes down C．remains stable D．is limited
56．It is not easy to carry out a worldwide birth-control program because______.
A．there are too many underdeveloped countries in the world
B．developing countries are short of food and raw materials
C．even developed countries may have some complex problems of population
D．different governments show quite opposite views to the population
Researchers have announced the result of two studies on the health effects of the drug aspirin．One study shows aspirin can sharply reduce the chance that a healthy, older man will suffer from a heart attack．
The study offered two new results from earlier findings, It said taking one aspirin pili every other day helped only healthy men over the age of fifty．It also said aspirin gave the greatest protection against heart attacks to men with low blood cholesterol（胆固醇）levels．
Earlier in the United States began a major aspirin study in the early 1980s．It included 22,000 healthy men doctors．Ail were between the ages of forty and eighty-four．More than 11,000 of the doctors took a harmless pill that contained no drug．The men did not know which kind of pill they were taking．
The doctors who took aspirin suffered 44% fewer heart attacks than those taking the harmless pill．139 men who took aspirin suffered from heart attacks．Ten of them died．239 men who did not take aspirin suffered from heart attacks．Twenty-six of them died．
The researchers said the doctors' study provides clear proof that taking aspirin can prevent a first heart attack in healthy, older men．They said, however, the result does not mean every man over the mage of fifty should take aspirin．They said aspirin couldn't help men who do not eat healthy foods, who smoke cigarettes and who are fat．The researchers said men who think they wou3d be helped by taking aspirin should talk with their doctors first．We may learn that the new use of aspirin is ______．
| A．to treat heart disease |
| B．to reduce the chance of a heart attack in old men |
| C．to protect old men |
| D．to reduce the blood cholesterol levels |
Aspirin can help those who ______．
| A．are older and healthy |
| B．know how to keep fit |
| C．are fat and smoke cigarettes |
| D．are suffering from heart attack |
At last the researchers advised us to take aspirin _____.
| A．as we like | B．with care | C．every day | D．if we are over fifty |
From the experiment we can conclude that about ______ of people who suffered from heart attacks without aspirin died．
| A．7% | B．19% | C．11% | D．44% |
China has a growing love affair with the cars．This is clear at the Beijing Asian Games Village Automobile Exchange, where more and more people come to look and increasingly to buy．
Alice Wu is an editor at a Chinese Internet publication．She takes the subway to work, but she is certain she can cut her commute time if she drives herself．Wu says it takes her three hours to get to work now．If she had a car, she says, the same trip would only take her two hours．
The Asian Games Village Automobile Exchange is the biggest car dealership in Beijing．General manager Guo Yong says the business sells more than two thousand cars each week．Guo says it is much easier for Chinese consumers to buy a car now．In the past, it would take them several years to earn enough money to buy a new car．Now, he says, many people only need to save for one year．Also, the emergence of less expensive domestic brands like Chery and BYD means more Chinese can afford cars．
For decades, most Chinese city residents got about by bicycle or public buses and trains．Now, in many areas, the number of new cars is growing faster than the road system, leaving city streets jammed with traffic．Guo Liang has wanted to buy a car for a decade, and he will be the first in his family to own one．He is not deterred by Beijing's traffic jams．Guo says if the traffic is too bad, he will use the car for leisure or holidays with his family．Another customer, Zhang Menxin, works in Beijing, but is from Xi'an, more than 900 kilometers away．Zhang says it is very difficult to get a train ticket to return home for Chinese New Year．She adds that train is not convenient．If she had her own car, she says, she could go anytime she wanted to．
World Bank transportation specialist Shomik Mendhiratta says, “Getting a car makes people feel like they have arrived to the middle class, and it's got a huge status associated with it．It's a fantastic thing to have．”The underlined word "deterred" in the 4th paragraph probably means.
| A．encouraged | B．attracted | C．astonished | D．discouraged |
The reason why Zhang Menxin wants to buy a car is that.
| A．it is hard and inconvenient for her to go home in Xi'an by train． |
| B． she doesn't like to go to work by subway． |
| C．she wants to use the car for leisure or holidays with her family |
| D．the place where she works is far from her house |
The best title for the passage should be " "
| A．Cars made China a country on wheels |
| B．More Chinese Hitting the road in their own cars． |
| C．More cars sold by the Beijing Asian Games Village Automobile Exchange |
| D．China is developing rapidly in the past few years． |
According to what Shomik Mendhiratta in the last paragraph, the car is ____ for the person who owns it．
| A．of little value | B．a means of transportation |
| C．a status symbol | D．a heavy burden |
If you live in a city where everyone rushes, realize that you don't have to be like everyone else．You can be different．
I can't give you a step-by-step guide to moving slower, but here are some things to consider and perhaps adopt, if they work for your life．
1．Do less
Cut back on your projects, on your task list, on how much you try to do each day．Focus not on quantity but on quality．Pick 2 or 3 important things-or even just one important thing- and work on those first．
2．Have fewer meetings
Meetings are usually a big waste of time and make you rush．Try to have blocks of time with no interruptions, so you don't have to rush from one meeting to another．
3．Give yourself time to get ready and get there
If you're constantly rushing to appointments or other places you have to be, it's because you don't allot（分配） enough time in your schedule for preparing and for traveling．Pad your schedule to allow time for this stuff．If you think it only takes you 10 minutes to get ready for work or a date, perhaps give yourself 30 to 45 minutes so you don't have to shave in a rush or put on makeup in the car．
4．Practice being comfortable with sitting doing nothing
When people have to wait, they become impatient or uncomfortable．Try standing in a line and just watching and listening w people around you．It takes practice, but after a while, you’ll do it with a smile．
5．Realize that if it doesn't get done, that's Ok．
There's always tomorrow．And yes, I know that's a frustrating attitude for some of you who don't like laziness or living without firm deadlines, but it's also reality．The world likely won't end if you don't get that task done today．Your boss might get mad, but the company won't collapse and the life will inevitably go on．
Try these things out．Life is better when unrushed．
Remember the quote: If nature can get everything done without rushing, so can you．Which can be the best title of the passage?
| A．How not to hurry in our life? |
| B． How to give out our life? |
| C．What to do with our life? |
| D．How to change our life? |
If you think you need 10 minutes to get ready for the date with your boyfriend, ______．
| A．you don't have to put on makeup |
| B．you'd better squeeze about 35 minutes out for it |
| C．you should arrange 10 minutes for it |
| D．you should rush there |
According to the passage, we can know_______．
| A．even if we do as we're told by the author, we can't change anything |
| B．if we follow the author's advice, our life will be better |
| C．we should try to do all the things better on our task list |
| D．there's always tomorrow, so we can put off the thing that must be done today till tomorrow |
The underlined word "collapse" has the similar meaning to "______"．
| A．develop rapidly | B．pay enough |
| C．fail completely | D．drop suddenly |
Hair loss can be an emotionally troubling experience for some women. Luckily, experts do have suggestions on how to treat and prevent this condition.
According to Dr. Robert Jones of the Hair Transplant Center in Oakville, ON, hair loss in women is largely genetically determined—he estimates that nearly 80 to 90 percent of hair loss in both men and women is due to a family history of the condition. But some women can experience hair loss as the result of a thyroid dysfunction, pregnancy hormones or because of side effects of medicines such as antidepressants and birth control pills. Nick Dimakos, founder of SureThik International in Toronto, agrees stress and lower-than-normal levels of estrogen (雌性激素) are other contributing factors to hair loss in females. Low levels of iron and over-use of chemical hair products such as artificial dyes (染料) can also lead to thinning hair, which can be especially difficult for women, for whom hair loss is much less socially acceptable than it is for men. “Women lose about 25 percent of their hair before even noticing there’s a problem,” Dimakos says. “It can be devastating (毁灭性的) for them.”
There is no surefire (一定成功的) way to prevent hair loss, but there are steps you can take to reduce the amount of hair you lose. Dimakos recommends visiting your doctor because early discovery and treatment can prevent unnecessary hair loss. He also recommends using mild hair products, avoiding hair dyes or extensions, avoiding smoking and taking vitamin B12 if you suspect hair loss may be in your future. Wearing hair in a ponytail (马尾辫) or braid (辫子) regularly can also lead to weakened hair that is likely to fall out, so it may be best to avoid wearing these styles too often.
Of course, if your hair begins to lose, you’d better seek treatment.
• Hair transplants
Very few women turn to hair transplants because unlike men, women suffering from hair loss usually have thinning hair all over their heads rather than only in one area. If there is not enough hair somewhere else on the head that can be taken to fill in the gaps, a transplant cannot be performed.
• Minoxidil
Found in Rogaine, an over-the-counter (OTC) product, this is a medicine that lowers blood pressure. But it can also slow down or stop hair loss, says Dimakos. This option may work for some women, but it is important to consult your physician before taking any type of medication.
| The truth about hair loss in women |
||
| What (71) hair loss? |
(72)factor |
A large (73)of hair loss is due to a family history of the condition. |
| Health condition and stress |
A thyroid dysfunction, stress, pregnancy hormones and low levels of estrogen and iron all lead to hair loss. |
|
| Side effects of medicines |
Some medicines lead to hair loss. |
|
| Chemical hair products |
Over-use of such products may cause hair to (74). |
|
| Women’s ignorance |
About 25 percent of their hair is lost before women (75)there is a problem. |
|
How can you prevent hair loss? |
Visit the doctor. |
Doctors may help you (76)it early and treat hair loss in time. |
| Adopt a healthy (77). |
Avoid smoking and take vitamin B12. Avoid hair dyes or extensions. |
|
| Wear your hair properly. |
Avoid wearing hair in a ponytail or braid (78). |
|
| How can you (79)hair loss? |
Hair transplants |
A transplant can be performed if there is enough hair somewhere else on the head that can be taken to fill in the gaps. |
| Minoxidil |
The medicine can slow down or stop hair loss if (80)properly. |
Today just as technology changed the face of industry, farmers have undergone an "agricultural revolution". On the farm of today, machines provide all the power.
One of the most important benefits will be the farm computer. A few forward-looking farmers are already using computers to help them run their farms more efficiently. The computers help them keep more accurate records so they can make better decisions on what crops to plant, how much livestock to buy, when to sell their products, and how much profit they can expect. Many computer companies have been developing special computer programs just for farmers. Programs are being written for hog(猪) producers, grain farmers, potato farmers, and dairy farmers. In the future, farmers will be able to purchase computer programs made to their needs. Because of the growing importance of computers on the farm, students at agricultural colleges are required to take computer classes in addition to their normal agricultural courses. There can be no doubt that farmers will rely on computers even more in the future. While the old-time farm depended on horse power, and modern farms depend on machine power, farms of the future will depend on computer power.
Another technological advance which is still in the experimental stage is the robot, a real "mechanized hired hand" that will be able to move and, in some ways, think like a human being. Unlike farmers of the present, farmers of the future will find that many day-to-day tasks will be done for them. Scientists are now developing robots that will be able to shear(修剪) sheep, drive tractors, and harvest fruit. Even complex jobs will be done by robots. For example, in order to milk their cows, farmers must first drive them into the special barn(畜棚), then connect them to the milking machines, watch the machines, and disconnect them when they are finished. In the future, this will all be done by robots. In addition, when the milking is completed, the robots will automatically check to make sure that the milk is pure. The complete mobilization of the farm is far in the future, but engineers expect that some robots will be used before long.Which sentence carries the main idea of the whole passage?
| A．The first sentence of the first paragraph. |
| B．The first sentence of the second paragraph. |
| C．The first sentence of the third paragraph. |
| D．The last sentence of the second paragraph. |
Which of the following statements is true?
| A．Farmers in the future will depend totally on computers. |
| B．Both computers and robots have been in use on today's farms. |
| C．Farmers mainly use machines on their farms at present. |
| D．Farmers can do nothing without the help of computers on today's farms. |
According to the engineers,_____________ will be done by robots in the near future.
| A．all farm work | B．milking cows |
| C．most of the farm work | D．some house work |
What is the best title for the passage?
| A．Computer—Farmers' Best Friend | B．Farmers in the Future |
| C．Robots in the future | D．Revolution on the farm |