stand for   concern with    bound up with     on the edge of   short of      end up     ignorant of   in memory of    comply with   focus on     a host of    give off

Don’t______yourself_______matters that are not your business.

    All the latest footwear engineering in your running sneakers might not mean a thing when it comes to preventing injuries. The latest barefoot running study in the journal Nature deployed 3-D infrared tracking to gauge the difference in foot strike between shod and shoeless runners. Scientific American reports.

   Runners who wore sneakers ended up landing heel-first 75 to 80 percent of the time. By contrast, barefoot runners usually land toward the middle or front of the foot—a dramatic difference that recalls the more natural foot strike of early Homo sapiens. Needless to say, early humans certainly were not bom to run wearing Nike or Reebok.

   “Most people today think barefoot running is dangerous and hurts.” said Daniel Lieberman, a professor of human evolutionary biology at Harvard University and lead author on the study. “But actually you can run barefoot on the world’s hardest surfaces without the slightest discomfort and pain.”

    More bad news for sneakers came last December, when the American Academy of Physical Medicine and Rehabilitation found that running shoes can increase joint torques at the hip, knee and ankle. Their study suggested that even going for a run in high heels was better for preventing joint injuries than tennis shoes.

My View on Low-carbon Economy

accessible

perceive

beyond one’ comprehension

elucidate

take...for granted

41、经济危机之后，人们认为他们的房价不会再继续升高。

42、虽然他是我们大学的校长，但他对学生总是平易近人。

43、我不懂，你得解释一下。

44、我认为他肯定认识我。

45、我不明白她怎么能在一天内做那么多事情。

The urban poor gained from the lower prices and greater supplies of food but the rural poor, especially the landless, have sometimes been disadvantaged. However, new agricultural technology should not be expected to stand proxy for social reform, and Lipton concludes that the technology per se (本身)was not to blame for the inequalities of impact; it met the criteria he would have specified for a technology to help the rural poor. As Frankel commented: ‘It is precisely the social blindness of modem technology that is encouraging the most disadvantaged scciion of the agricultural community’.

television   because    first    movies   keep   owned    hardly   middle  program    American

    Television has certainly changed American life, but not the way the first critics predicted. The (31) televisions were enormously expensive, so most families (32) only one. By 1975, however, 60% of (33) families owned two televisions or more; some (34)class families had as many as five (35) sets under one roof. Such multi-set families may (36) family members in the same house, but that (37) brings them “together.” In fact, family outings—hiking, going to the (38), going out to dinner—are often limited by TV (39) one or more family members don’t want to go: “I’ll miss my (40),” is the common complaint.

Tonight’s TV program________health care reform.

Her husband________her wishes that he stop drinking.

The congress opened with a minute’s silence________those who died in the earthquake.

The future of the island is_______the fortunes of the local government.

________problems may delay the opening of the conference.