72. What can we learn from paragraph 2 and 3?

A. There were more teens volunteer than adult volunteers in supporting charitable causes.

B. Only 39 percent teens volunteer preferred to support charitable causes.

C. 82 percent of parents and guardians have supported charitable causes.

D. The adults surveyed want to be praised for their volunteering in charity.

71. How will Australian scientists solve the problem of global warming?

A. Eating more kangaroos.　 B. Killing more cattle and sheep.

C. Letting cattle and sheep pass less wind.

D. Transferring the special bacteria in kangaroos’ stomachs to cattle and sheep.

E

American teens are setting an example for their parents through their volunteer work, according to a new poll by Harris Interactive.

The random national telephone survey released this week by the Federal Way-based charity World Vision found that more teens volunteer to support a charitable cause - 56 percent - than have a part-time job - 39 percent.

Parents and guardians said 82 percent of the teens in their lives do something to support charitable causes, including volunteering, recruiting others to a cause, wearing a button or T-shirt or donating money. Forty-six percent of the adults surveyed said they volunteer their time, but they are also praised for inspiring their children to volunteer.

The Harris Interactive poll was conducted in the United States between Jan 29 and Feb 2 among 2,003 adults.

Sara Johnson, a teacher who advises students at a private school in a Chicago suburb, says she's seen the interests of teen involvement in social causes since President Barack Obama was elected in November, 2008.

The Harris Interactive survey found a quarter of teens have become more involved in charitable causes or organizations as a result of the economic downturn, but the economy has also led to cuts in allowances, and has teens working more hours at a paying job.

Unlike many public high schools across the nation, Ileana Christian does not require its students to clock public service hours. Senior Melissa Martin said some kids are too busy with other activities like sports and music, but most of her classmates do volunteer.

Alynn Woodson, director of volunteer engagement at Habitat for Humanity International, said she has noticed a new enthusiasm among teen volunteers for the organization.

Habitat for Humanity celebrates the 20th anniversary of its alternative spring break program this year and is expecting more than 12,000 young people to help build homes for low-income people around the nation.

70. Some Australians begin to eat kangaroos because _____.

A. The kangaroos’ farts(放屁)contain no methane　 B. The kangaroos have a special bacteria

C. The kangaroos are the national symbol in Australia

D. The kangaroos are low in fat and high in protein

69. What does the underlined phrase “the idea”(paragraph 9)refer to?

A. Australians should give kangaroo-style stomachs to cattle and sheep.

B. The bacteria could make the digestive process much more efficient.

C. Australians should farm fewer cattle and sheep and just eat more kangaroos.

D. The bacteria could potentially save millions of dollars in feed costs for farmers.

68. According to the passage, global warming is now mainly caused by _____ .

A. methane　 B. carbon dioxide　 C. livestock passing wind　 D. not mention in this passage

67. We may probably see the passage in the section _____________ of the Website.

A. Entertainment　 B. Lifestyle　 C. Consumers　 D. Science and technology

D

Australian scientists are trying to give kangaroo-style stomachs to cattle and sheep in a bid to cut the emission of greenhouse gases blamed for global warming.

Thanks to special bacteria in their stomachs, kangaroo farts contain no methane(甲烷)and scientists want to transfer that bacteria to cattle and sheep who emit large quantities of the harmful gas.

While the usual image of greenhouse gas pollution is a billowing smokestack pushing out carbon dioxide, livestock passing wind contribute a surprisingly high percentage of total emissions in some countries.

"Fourteen percent of emissions from all sources in Australia is from enteric methane from cattle and sheep," said Athol Klieve, a senior research scientist with the Queensland state government.

"And if you look at another country such as New Zealand, which has got a much higher agricultural base, they're actually up around 50 percent," he said.

Researchers say the bacteria also makes the digestive process much more efficient and could potentially save millions of dollars in feed costs for farmers.

But it will take researchers at least three years to isolate the bacteria, before they can even start to develop a way of transferring it to cattle and sheep.

Another group of scientists, meanwhile, has suggested Australians should farm fewer cattle and sheep and just eat more kangaroos.

The idea is controversial(争议), but about 20 percent of health conscious Australians are believed to eat the national symbol already.

"It's low in fat, it's got high protein levels and it's very clean in the sense that basically it's the ultimate free range animal(散养动物)," said Peter Ampt of the University of New South Wales's institute of environmental studies.

66. The attitude of Wilfred Martis, director of Intel’s digital home group, is____________ according to the article.

A. Negative.　 B. Subjective.　 C. Optimistic.　 D. Neutral.

65. Which of the following statement is TRUE according to the passage?

A. Yahoo Company has succeeded in reaching consumers.

B. The widgets offer a complete Web interaction on purpose.

C. Yahoo Company doesn’t offer consumers Web search at present.

D. Ads contribute to consumers giving up Yahoo’s Web TV.

64. The best title of the passage will probably be_____________.

A. Yahoo's Web TV with free of charge　　　 B. Yahoo's Web TV faces uphill battle

C. An important start with Yahoo's Web TV.　 D. Yahoo's Web TV without ads

63. How many family members are mentioned EXCEPT Witherspoon altogether in the passage?

A. 3.　 B. 4.　 C. 5.　 D. 6.

C

LAS VEGAS(Reuters)-Yahoo Inc wants viewers to “fall in love” with its effort to bring the Web to the TV, but questions remain about how the service will operate and how successful it will be in reaching consumers.

Yahoo's Web TV offering, which the company said will be free of charge, is centered on so-called “widgets”-- or small Internet applications -- that are lined up along the bottom of the screen.

By design, the widgets offer only a slice of the online experience and not a complete Web interaction. For example, there is no standard Web browser, and a conscious effort was made to avoid applications that involve typing.

Moreover, perhaps the most common online activity, Web search, is not offered for now. Whether consumers will find such a limited online service attractive remains to be seen.

“We want users to fall in love with the service before we gave them much information with ads,” said Patrick Barry, vice president of connected TV at Yahoo.

NORMAL ONLINE ACTIVITIES

Barry emphasized that the Internet experience is designed to never overshadow the TV's content. Users will be able to stream videos from YouTube, check news, share photos, and do many other normal online activities.

Yahoo formally showed the service publicly at the Consumer Electronics Show in Las Vegas this week.

The company managed to convince a number of consumer electronics heavyweights to include the widget service in their future products, announcing partnerships with companies including Samsung Electronics Co, LG Electronics Inc and Sony Corp.

The service will be included in TVs being shipped in North America and to 10 countries in Europe, Yahoo said.

The Web TV initiative(主动性)was originally jointly announced last summer by Yahoo and Intel Corp. But Intel's CE 3100 chip will be used only in Internet-enabled TVs and devices offered by Toshiba, and a set-top box from Samsung, the company said.

Wilfred Martis, director of Intel’s digital home group, emphasized that the partnerships announced at CES were only the start of the initiative.

“This is the beginning of this huge sea change in the consumer electronics space .... There have been a lot of false starts in this industry but I think we now have critical mass between content providers, service providers, OEMs(original equipment manufacturers), silicon providers. Everybody is working together.”