63. How did the researchers do the two studies?

  A. By practising.         B. By comparing.  C. By questioning. D. By reasoning.

答案:60-63 DACB

Passage 7

(江西重点中学盟校2010届高三第二次联考D篇)

Cellphone users in the United States have contributed more than $11 million to Haitian earthquake relief through text messages in what is being called as an unexpected mobile response to a natural disaster.

The Mobile Giving Foundation called it a “mobile-giving record” for funds raised for a single cause. Donations are rising swiftly, as former President Bill Clinton and other politicians urge the American people to give.

Jim Manis, chief officer of the organization helping to manage cellphone donations, said it was receiving up to 10,000 text messages per second. The foundation said more than $11 million has been donated.

Cellphone users can donate $5 to Haiti-born hip-hop musician Wyclef Jean’s Yele Haiti Earthquake Fund by texting the word “Yele” to 501501, or they can donate $10 to other nonprofit organizations, such as the American Red Cross, by texting the word “Haiti” to a specified number, like 90999.

The donation is charged to a user’s cellphone bill.

The American Red Cross said it has received more than $ 9 million in donations from more than 900,000 mobile phone users.

“It’s beyond our imagination that we’ve received this amount,” said spokeswoman Nadia Pontif.

Jean’s fund had raised $2 million via text messages, according to Give on the Go, Yele’s mobile application service provider.

The giving is also being fueled by the popularity of websites like Facebook and Twitter, where users are urging one another to make donations using cellphones.

Wireless carriers(无线运营商) Verizon Wireless, AT&T Inc., Sprint and T-Mobile USA, a unit of Deutsche Telekom AG, have waived(免收) fees for customers wishing to send mobile donations. Carriers are also letting users know they are not taking a cut of the donations.

“There are no text messaging fees and 100% of the $10 donation goes to the American Red Cross, and every carrier is working through a solution to push those funds out faster.” Verizon said in a statement.

43.D. 主旨大意题。根据文章第一段可知。

Passage 6

(江西重点中学盟校2010届高三第二次联考B篇)

Two new studies suggest that modern running shoes could increase the risk of injuries to runners.

One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine. Sometimes they wore running shoes. Other times they ran barefoot.

Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.

They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.

The study appeared in the official scientific journal of the American Academy of Physical Medicine.

The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.

They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.

Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.

Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.

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