In what may be the most terrified shower news since Alfred Hitchcock’s “Psycho,” a study says shower heads can hide tiny bacteria that come spraying into your face when you wash. People with normal immune systems have little to fear, but these bacteria could be a concern for those with AIDS, people who are undergoing cancer treatment or those who have had a recent organ transplant.

Researchers at the University of Colorado tested 45 showers in five states as part of a larger study of the microbiology of air and water in homes, schools and public buildings. They report their showers findings in Tuesday’s edition of Proceedings of the National Academy of Sciences.

In general, is it dangerous to take showers? “Probably not, if your immune system is not compromised in some way,” lead author Norman R. Pace says. “But it’s like anything else---there is a risk associated with it.”

The researchers offer suggestions for caution, such as getting all-mental shower heads, which microbes have a harder time clinging to.

 Still, it is hard to clean the shower heads, the researchers note, and the bacteria come back even after cleaning. People who have filtered(过滤的) shower heads could replace the filter weekly, added co-author Laura K. Baumgartner. And, she said, baths don’t splash bacteria into the air as much as showers.

Indeed, studies by the National Jewish Hospital in Denver suggest increases in infections in the lungs in the Untied States in recent decades from species like M.
    Symptoms of infection can include tiredness, a persistent, dry cough, shortness of breath, weakness and “generally feeling bad,” he said.

Shower heads were sampled at houses, apartment buildings and public places in New York, Illinois, Colorado, Tennessee and North Dakota.

 The researchers sampled water flowing from the shower heads, then removed them, wiped the interiors of the devices and separately sampled water flowing from the pipes without the shower heads.

 By studying the DNA of the samples they were able to determine which bacteria were present.

66. Which group of persons of the following don’t have to fear the bacteria in the shower head?

A. Those who suffer from AIDS

B. Those with normal immune system

C. Those undergoing cancer treatment

D. Those that have had organ transplanted recently

67. In Para 3, what does Norman R. Pace suggest?

A. People with abnormal immune system will die from taking showers.

B. People shouldn’t take shower for there is always a risk there.

C. Bacteria in shower heads may harm those with abnormal immune system 

D. Abnormal immune system is associated with taking showers.

68. What does the underlined word “cling to” mean in Para. 4?

A. Holding onto tightly                                   B. Spreading widely

C. Breaking out                                               D. Cleaning up

69. What suggestions do NOT the researchers offer for caution?

A. Using all-metal shower heads.                 B. Replacing the filter weekly.

C. Stopping splashing microbes                   D. Taking baths instead of showers 

70. What is the best title of this passage?

A. Microbes hidden in shower heads            B. An important research on showers

C. Taking baths instead of showers              D. Terrible murder in the showers

—What does this sentence mean ?

  --- It seems to me that it ________.

A. doesn’t make sense B. doesn’t have sense  C. doesn’t make meaning D. doesn’t be meaningful

After more than a year of bitter political debate, President Obama sat down in the White House East Room on March 23 and signed the 2010 Patient Protection and Affordable Care Act into law with a pen，and then another pen，and another. Obama used 22 pens to sign the $938 billion health care bill.

The practice of using different pens to sign important legislation（法规）dates at least as far back as Franklin Roosevelt. The reason is fairly simple. The pen used to sign historic legislation itself becomes a historical artifact. The more pens a President uses, the more thank-you gifts he can offer to those who helped create that piece of history. The White House often give pens to supporters of the newly signed legislation. When Lyndon Johnson signed the Civil Rights Act in 1964, he reportedly used more than 75 pens and gave one of the first ones to Martin Luther King Jr. And in 1996, President Clinton gave the four pens he used to sign the Line-Item Veto bill to those most likely to appreciate the bill's consequence.

    Once they're given away, some pens end up in museums; others are displayed proudly in recipients'(接受者) offices or homes. But they sometimes appear again, like in the 2008 presidential campaign（竞选活动）, when John Macain promised to use the same pen given to him by President Reagan to cut pork from the federal budget.

Not every President goes for the multipen signature, however. President George W. Bush preferred signing bills with only one pen and then offering several unused "gift" pens as souvenirs.

1..We can learn from paragraph 1 that the 2010 Patient Protection and Affordable Care Act        .

A. has been passed easily

B. was put forward one year ago

C. becomes law in the USA

D. is unimportant

2.How are the pens dealt with after being used by President Obama?

A. Supporters of the newly signed legislation are likely to get some of them.

B. Obama will keep them.

C. They will be just set aside

D. They will be sold to the public at a high price.

3.What can we learn about John Macain?

A. He was ever President in the USA.

B. He took part in the 2008 presidential campaign.

C. He never used the pen given by Reagan.

D. He was only concerned about his own business.    

4.What does this passage mainly tell us ?[来源:学。科。网]

A. Obama signed the 2010 Patient Protection and Affordable Care Act.

B. It is a practice to use multiple pens to sign important legislation in the USA.

C. Pens are necessary in the signature.

D. All the presidents like the multipen signature.

Coffee experts are willing to pay large sums of money for high-quality coffee beans. The high-end beans, such as Kona or Blue Mountain, are known to cost extraordinary sums of money. Then there is Kopi Lowak (translated as “Civet Coffee”), the world’s most expensive coffee, which sells for as much as US $50 per quarter-pound.
This isn’t particularly surprising, because approximately 500 pounds a year of Kopi Lowak make up the entire world supply. What is surprising is why this particular coffee is so rare. In fact, it’s not the plants that are rare. It’s the civet droppings. That’s right, the civet droppings—the body waste of the palm civet. Coffee beans aren’t Kopi Lowak until they’ve been digested(消化) and come out in the body waste of the palm civet.
Palm civets are tree-dwelling, raccoon-like little animals, native to Southeast Asia and the Indonesian islands. They also have a love for coffee cherries. According to Kopi Lowak suppliers, palm civets eat the fruit whole, but only digest the outer fruit, leaving the beans intact(完好无损). While the beans are not destroyed, they undergo a transformation in the animal’s body. A chemical substance in the digestive system of the palm civet causes some changes to the beans to give them a unique flavor(味道). However, this is not the only explanation why coffee beans retrieved from civet droppings have a special flavor all their own. Another possible reason is that palm civets have an unfailing instinct for picking the coffee cherries at the peak of their ripeness.
Kopi Lowak is reported to have a character in taste unlike any other coffee, complex with caramel undertones and an earthy flavor. Currently, most of the world’s supply of Kopi Lowak is sold in Japan, though a few US markets are also starting to stock up on Kopi Lowak.
【小题1】What does “This” in the second paragraph refer to?

Thousands of people living in the Chinese capital will celebrate the start of the Chinese  New year by heading for the ski resorts (滑雪场). Never mind that Beijing's dry weather seldom produces snow. It is cold enough in winter for snow-making machines to make a covering for the hills north to the capital. And the rapid growth of a pleasure-seeking middle class has formed the basis for this new craze(热潮）     
Since Beijing's first ski resort was opened ten years ago, the sport has enjoyed astonishing increase. There are now more than a dozen resorts. Clothes markets in the city have added bright colored ski suits to their winter collections. Mr. Wei, a manager of a newly-opened ski resort in Beijing, sees the growth of an industry that could soon lead Chinese to head for the ski resorts of Europe, In recent years ski resorts offering natural snow have opened in China. But many are in faraway areas of the country and can't really match the equipment and services of some ski resorts in Europe.
Beijing's skiing craze is partly a result of the recent increase in private (私有的) cars. This has led to the growth of a leisure industry in the capital's suburbs (郊区), which until the late-1990s were unreachable to ordinary people, According to Mr. Wei, about 40% of the visitors to his resort come in their own cars. The rest are bused in by schools, businesses or government offices.  
The problem is making money. Starting ski resorts requires quite a lot of money; hiring land from the local government, preparing the hills, buying snow machines, making sure there are enough water and electricity to run them, and buying ski equipment for hiring out to customers.
The ski resort where Mr. Wei works cost nearly $4 million to set up. And. as so often in China when someone comes up with a good idea, many others rush in and price wars break out. Beijing now offers some of the cheapest ski training classes in the world, though with most people rather new to the sport, expecting a few more doing the same job.
【小题1】What does this text mainly talk about?