Board of trustees is composed chiefly of laymen because（）A、they are more likely to represent public interestsB、they have more commonsense and less professional biasC、their interests are affected by board decisionsD、None of the above

More families consist of one‐parent households or two working parents;（ ）,children are likely to have less supervision at home than was common in the traditional family structure.

A.contrarily
B.consequently
C.similarly
D.simultaneously

Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways. The simple reason for this is that there are more different ways of looking at things present in the first kind of society. There are more ideas, more disagreements in interest, and more groups and organizations with different beliefs. In addition, there is usually a greater worldly interest and greater tolerance in mixed societies. All these factors tend to protnote social change by opening more areas of life to decision.
In a society where people are quite similar in many ways, there are fewer occasions for people to see the need or the opportunity for change because everything seems to be the same. And although conditions may not be satisfactory, they are at least customary and undisputed.
Within a society, social changes is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been learned later in life rather than what was learned early; in the less basic and less emotional aspects of society than in their opposites; in the simple elements rather than in the complex ones; in form rather than in substance; and in elements that are acceptable to the culture rather than in strange elements.
Furthermore, social change is easier if it is gradual. For example, it comes more readily in human relations on a continuous scale rather than one with sharp difference. This is one reason why change has not come more quickly to Black Americans as compared to other American minorities,because of the sharp difference in appearance between them and their white counterparts.
?Social change is less likely to occur in a society where people are quite similar in many ways because__________.

A.people there have got so accustomed to their conditions that they seldom think it necessary to change
B.people there have identical needs that can be satisfied without much difficulty
C.people there are easy to please
D.people there are less disputed

共用题干
第一篇

U. S. Blacks Hard-hit by Cancer

Death rates for cancer are falling for all Americans,but black Americans are still more
likely to die of cancer than whites,the American Cancer Society said Monday.
In a special report on cancer and blacks,the organization said blacks are usually
diagnosed with cancer later than whites,and they are more likely to die of the disease.
This could be because of unequal（不平等的）access to medical care, because blacks
are more likely to have other diseases as well,and perhaps because of differences in the
biology（生物学）of the cancer itself, the report added.
"In general,black Americans have less hope of surviving five years after diagnosis
than whites for all cancer sites and all stages of diagnosis,"the report said,
"In describing cancer statistics for black Americans,this report recognizes that many of
the differences associated with race may be caused by unfair social and economic
differences and unequal access to medical care."
The cancer society said blacks should be encouraged to get check-ups（体格检查）
earlier,when cancer is more treatable,and it said more research is needed to see if
biological differences play a role.
"The new statistics emphasize the continuing importance of wiping out these unfair
social differences through public policy and education efforts,"the organization said in a
statement.
But it also noted a drop in cancer death rates.
"Cancer death rates in both sexes for all sites combined have dropped greatly among
black Americans since 1992,as have incidence rates（发生率）,"said the report.

Black Americans are more likely to die of cancer than
A:people in other countries.
B:white Americans.
C:all other Americans.
D:their ancestors.

Text 2 You would think that the young and digitally intellectual-the generation that grew up with computers at their fingertips-would be the least likely age group to fall victim of online fiaud.But the opposite is true."We've bought into stereotypes about fraud victims-they're usually seen as wlnerable and elderly,or gullible and poorly educated,"says Emma Fletcher,product manager at the BBB Institute."These stereotypes are strongly held-and they are wrong.We are all at risk,but younger and more educated individuals are actually the most likely to be deceived."Similarly,a 2016 report by Norton,the antivirus company,found that 44 per cent of millennials had been the victim of an online crime in the past year,compared with just 16 per cent ofbaby boomers.Research by Barclays this year backs this up.The Barclays Digital Safety Index highlights that almost two thirds of 18-24 year-olds had fallen prey to hackers or viruses.Yet when asked about actions taken to prevent future attacks,millennials were less likely than their older counterparts to take positive action,such as installing an anti-virus software following a computer system collapse.One reason is what is known as"optimism bias"-the idea that other people might be more One reason is what is known as"optimism bias"-the idea that other people might be more vulnerable than you and that you know better.Younger people are usually more knowledgeable about IT than those in the generations above them.But this makes them less likely to heed advice about staying safe,whereas,perhaps surprisingly,older people are more inclined to listen.But this is not the only reason.Younger people spend far more time online.They shop more there（meaning their card details are entered more ofien and stored in many more databases）and they share much more personal information online.According to Ofcom's 2016 Media Use and Attitudes Report,more than 90 pcr cent of those aged 16-34 have social-media accounts.For those aged between 55 and 64,this figure drops t0 51 per cent.For those 65 and over,it's 30 per cent.Interestingly,though,according the Office ofNational Statistics,older people are more likely to be victims ofrepeat fraud.This may be because they tend to be more trusting.Research at the University of California suggests that this isn't just because they grew up in more innocent times.Rather,age-related changes in the brain mean that as people get older,they tend to trust more and question less.27.According to Paragraph 3,the millennials tend to

A.neglect taking measures to protect themselves.
B.misuse anti-virus sofiware on their computer.
C.take positive actions to prevent computer viruses.
D.less likely have their computer system damaged.