Four experts, who held master's or doctor’s degrees in consulting and psychology, assessed the bloggers' social and emotional condition via their blog posts. Students were assessed as having a poor social and emotional state if they wrote a lot about personal problems or bad relationships or showed evidence of low self-esteem.
Self-esteem, social anxiety, emotional stress and the number of positive social behaviors improved significantly for the bloggers when compared to the teens who did nothing and those who wrote private diaries. Bloggers who were instructed to write specifically about their difficulties and whose blogs were open to comments improved the most. All of these results agreed with the two- month follow-up.
The authors admitted that the skewed(有偏向的) sex rate was a limitation to the study. However, the researchers analyzed the results separately by gender and found that boys and girls reacted similarly to the experiment and there were no major differences. However, they said future research should attempt to control the subjects sex.
46. The selection of students for the experiment was largely based on____.
A. their social relationships B. their self-esteem
C. their problems in social life D. their willingness to fill out a questionnaire
47. What’s the function of “controls” (Paragraph 4) in the experiment?
A. To write down some social problems in a private diary.
B. To post messages to the blog and respond to comments.
C. To help evaluate the number and content of blog comments.
D. To offer a comparison for checking the experimental result.
48. From the experiment we can know that____.
A. writing private diaries makes no difference to the relief of one’s emotional stress.
B. teenagers opening their blogs up to comments have more psychological benefits.
C. the positive effects of expressing one’s emotions by blogging don’t last very long.
D. those describing bad relationships on blogs tend to develop more mental problems.
49. What can be inferred from the last paragraph?
A. The authors insisted that all the research findings were accurate.
B. Sex rate had been taken into account before the survey was conducted.
C. The authors were intended to improve the experiment in the future.
D. Similar reactions of boys and girls indicated the failure of the experiment.
B
Tiangong-1 (or Heavenly Palace) space module(舱) is the first step toward China's plan to build a space station around 2020. Its launch by China has upset some countries, which are asking why China did not add on to the International Space Station that has been in place since 1998. After all, the Americans, Russians, Europeans and Japanese are using one platform to experiment in space.
Questions have also been asked about China's ultimate purpose in space and suggestions made that there is something as unpleasant as the theme in a James Bond movie, in which Chinese-looking enemies were at the root of some evil plot to control the world.
Chinese don't see themselves that way, and never in history have they been flag-planting colonialists. Most Westerners are schooled in the exploits of the great European explorers, headed by Christopher Columbus and James Cook, and followed closely by the groups of culture egotists(自大者) with a mix of guns, gold and the Bible in their hands.
In contrast, Zheng He, the great Chinese navigator, took fleets to Africa and the Middle East to promote goodwill, with gifts of chinaware and art. No flags claiming possession of distant colonies. But this is strange to Western society.
In this century, it is clear that space cannot be claimed by one nation. Yet advantage of technology in space does seem to be on some minds. Former US president Ronald Reagan caused shocks and worries with his ambitious Star Wars program. So when China shot down its own satellite as a test in January 2010 there were anxieties in the West about Star Wars-like scenario(剧本) becoming reality in the near future.
50. The launch of Tiangong-1____.
A. is appreciated by countries like the USA and Japan
B. will bring trouble to the western countries in space
C. is part of China’s plan to set up a station in space
D. will help China be a member of the Space Station
51. It is most probable that the US, Russia, Europe and Japan____.
A. are competing against one another in space wars
B. feel anxious about China’s setting up a space station
C. are cooperating to compete against China in space
D. have warned the world of China’s final purpose
52. The author of the passage mentions Zheng He____.
A. to tell people China will never be enemies of world peace
B. to compare him to the great European explorers like Columbus
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