题组内容描述:
Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A: , B: , C: and D: .

题组内容描述:
Directions: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A: , B: , C: and D: .

题组内容描述:
Directions: In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A: , B: , C: and D: .

题组内容描述:
Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. You may not use any of the words in the bank more than once.

题组内容描述:
Directions: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter.
Living with parents edges out other living arrangements for 18-to 34-year-olds
A) Broad demographic (人口的) shifts in marital status, educational attainment and employment have transformed the way young adults in the U.S. are living, and a new Pew Research Center analysis highlights the implications of these changes for the most basic element of their lives—where they call home. In 2014, for the first time in more than 130 years, adults aged 18 to 34 were slightly more likely to be living in their parents' home than they were to be living with a spouse or partner in their own household.
B) This turn of events is fueled primarily by the dramatic drop in the share of young Americans who are choosing to settle down romantically before age 35. Dating back to 1880, the most common living arrangement among young adults has been living with a romantic partner, whether a spouse or a significant other. This type of arrangement peaked around 1960, when 62% of the nation's 18-to 34-year-olds were living with a spouse or partner in their own household, and only one-in-five were living with their parents.
C) By 2014, 31.6% of young adults were living with a spouse or partner in their own household, below the share living in the home of their parent(s) (32.1%). Some 14% of young adults lived alone, were a single parent or lived with one or more roommates. The remaining 22% lived in the home of another family member (such as a grandparent, in-law or sibling (兄弟姐妹), a non-relative, or in group quarters like college dormitories.
D) It's worth noting that the overall share of young adults living with their parents was not at a record high in 2014. This arrangement peaked around 1940, when about 35% of the nation's 18-to 34-year-olds lived with mom and/or dad (compared with 32% in 2014). What has changed, instead, is the relative share adopting different ways of living in early adulthood, with the decline of romantic coupling pushing living at home to the top of a much less uniform list of living arrangements.
E) Among young adults, living arrangements differ significantly by gender. For men aged 18 to 34, living at home with mom and/or dad has been the dominant living arrangement since 2009. In 2014, 28% of young men were living with a spouse or partner in their own home, while 35% were living in the home of their parent(s). Young women, however, are still more likely to be living with a spouse or romantic partner (35%) than they are to be living with their parent(s) (29%).
F) In 2014, more young women (16%) than young men (13%) were heading up a household without a spouse or partner. This is mainly because women are more likely than men to be single parents living with their children. For their part, young men (25%) are more likely than young women (19%) to be living in the home of another family member, a non-relative or in some type of group quarters.
G) A variety of factors contribute to the long-run increase in the share of young adults living with their parents. The first is the postponement of, if not retreat from, marriage. The average age of first marriage has risen steadily for decades. In addition, a growing share of young adults may be avoiding marriage altogether. A previous Pew Research Center analysis projected that as many as one-in-four of today's young adults may never marry. While cohabitation（同居）has been on the rise, the overall share of young adults either married or living with an unmarried partner has substantially fallen since 1990.
H) In addition, trends in both employment status and wages have likely contributed to the growing share of young adults who are living in the home of their parent(s), and this is especially true of young men. Employed young men are much less likely to live at home than young men without a job, and employment among young men has fallen significantly in recent decades. The share of young men with jobs peaked around 1960 at 84%. In 2014, only 71% of 18-to 34-year-old men were employed. Similarly with earnings, young men's wages (after adjusting for inflation) have been on a downward trajectory (轨迹) since 1970 and fell significantly from 2000 to 2010. As wages have fallen, the share of young men living in the home of their parent(s) has risen.
I) Economic factors seem to explain less of why young adult women are increasingly likely to live at home. Generally, young women have had growing success in the paid labor market since 1960 and hence might increasingly be expected to be able to afford to live independently of their parents. For women, delayed marriage—which is related, in part, to labor market outcomes for men—may explain more of the increase in their living in the family home.
J) The Great Recession (and modest recovery) has also been associated with an increase in young adults living at home. Initially in the wake of the recession, college enrollments expanded, boosting the ranks of young adults living at home. And given the weak job opportunities facing young adults, living at home was part of the private safety net helping young adults to weather the economic storm.
K) Beyond gender, young adult's living arrangements differ considerably by education—which is tied to financial means. For young adults without a bachelor's degree, as of 2008 living at home with their parents was more prevalent than living with a romantic partner. By 2014, 36% of 18-to 34-year-olds who had not completed a bachelor's degree were living with their parent(s) while 27% were living with a spouse or partner. Among college graduates, in 2014 46% were married or living with a partner, and only 19% were living with their parent(s). Young adults with a college degree have fared much better in the labor market than their less-educated counterparts, which has in turn made it easier to establish their own households.

题组内容描述:
According to the majority of Americans, women are every bit as capable of being good political leaders as men. The same can be said of their ability to dominate the corporate boardroom. And according to a new Pew Research Center survey on women and leadership, most Americans find women indistinguishable from men on key leadership traits such as intelligence and capacity for innovation, with many saying they're stronger than men in terms of being passionate and organized leaders.
So why, then, are women in short supply at the top of government and business in the United States? According to the public, at least, it's not that they lack toughness, management talent or proper skill sets.
It's also not all about work-life balance. Although economic research and previous survey findings have shown that career interruptions related to motherhood may make it harder for women to advance in their careers and compete for top executive jobs, relatively few adults in the recent survey point to this as a key barrier for women seeking leadership roles. Only about one-in-five say women's family responsibilities are a major reason why there aren't more females in top leadership positions in business and politics.
Instead, topping the list of reasons, about four-in-ten Americans point to a double standard for women seeking to climb to the highest levels of either politics or business, where they have to do more than their male counterparts to prove themselves. Similar shares say the electorate(选民)and corporate America are just not ready to put more women in top leadership positions.
As a result, the public is divided about whether the imbalance in corporate America will change in the foreseeable future, even though women have made major advances in the workplace. While 53% believe men will continue to hold more top executive positions in business in the future, 44% say it's only a matter of time before as many women are in top executive positions as men. Americans are less doubtful when it comes to politics: 73% expect to see a female president in their lifetime.

题组内容描述:
People have grown taller over the last century, with South Korean women shooting up by more than 20cm on average, and Iranian men gaining 16.5cm. A global study looked at the average height of 18-year-olds in 200 countries between 1914 and 2014.
The results reveal that while Swedes were the tallest people in the world in 1914, Dutch men have risen from 12th place to claim top spot with an average height of 182.5cm. Latvian women， meanwhile, rose from 28th place in 1914 to become the tallest in the world a century later, with an average height of 169.8cm.
James Bentham, a co-author of the research from Imperial College, London, says the global trend is likely to be due primarily to improvements in nutrition and healthcare. "An individual's genetics has a big influence on their height, but once you average over whole populations, genetics plays a less key role," he added.
A little extra height brings a number of advantages, says Elio Riboli of Imperial College. "Being taller is associated with longer life expectancy," he said. "This is largely due to a lower risk of dying of cardiovascular（心血管的）disease among taller people."
But while height has increased around the world, the trend in many countries of north and sub-Saharan Africa causes concern, says Riboli. While height increased in Uganda and Niger during the early 20th century, the trend has reversed in recent years, with height decreasing among 18-year-olds.
"One reason for these decreases in height is the economic situation in the 1980s," said Alexander Moradi of the University of Sussex. The nutritional and health crises that followed the policy of structural adjustment, he says, led to many children and teenagers failing to reach their full potential in terms of height.
Bentham believes the global trend of increasing height has important implications. "How tall we are now is strongly influenced by the environment we grew up in," he said. "If we give children the best possible start in life now, they will be healthier and more productive for decades to come."