Exploring Beyond
Following the call of our restless genes has not ended well for all explorers. The British explorer Captain James Cook died in a fight with Hawaiians ten years after he received the precious map from Tupaia. His death, some say, brought to a close
NASA's Michael Barratt—a doctor, diver, and jet pilot; a sailor for 40 years; an astronaut for 12—is among those
Not all of us
1. 中等强度的活动
2. bang for your buck.
1. 多用途和顽强的植物
2. 食用油
3. 沙拉酱
4. antistatic sprays
5. 最普遍认可的产品
6. the versatility and hardiness
7. 受欢迎
1. 报名读类似课程
2. 每天记录他们的经历
3. cope with living in a new culture
4. 提高他们的语言技能
5. a new objectivity about their own culture
6. a foreign educational institution
7. 获得更好的跨文化视角
1. a new front-of-book column
2. the brainchild of our staff writer
3. 抵制这种趋势
4. a collective defense mechanism
5. 你难以启齿的秘密
6. 符合标准
7. cut brilliant writers loose
1. bring to a close
2. 保持热情
3. 把自己视作探索者
4. develop an enabling technology
5. 发射火箭
6. 获得更大的领土
9 . When antibiotics(抗生素)first became available, farmers used them freely. Now scientists know that the overuse of antibiotics can cultivate drug-resistant bacteria that are dangerous to human health. Among debates over what kinds of restrictions should be put in place, figuring out how antibiotic-resistant bacteria evolve and make their way to humans remains an area of intense interest.
Jo Handelsman is tracing one such pathway that, as she puts it, travels from "farm to table."Handelsman, a microbiologist who is now associate director for science at the White House Office of Science and Technology Policy, looked into dairy cows, which are often treated with antibiotics and produce manure(排泄物)that farmers use on their crops. In addition to nutrients, that fertilizer may harbor antibiotic-resistant bacteria—a problem because the bacteria can come into contact with plants that are finally shipped to supermarkets and sometimes eaten raw.
To find out how those antibiotic-resistant bacteria come to exist, Handelsman and her colleagues at Yale University added manure from a nearby Connecticut farm to raised beds of soil in 2013. In this case, the manure specifically came from cows that were not treated with antibiotics. The researchers unexpectedly found that there were more soil bacteria carrying antibiotic-resistant genes when they were grown with the manure than when they were grown with synthetic nitrogen-based fertilizer—even though the cows were drug-free.
Previous research has found that manure from pigs treated with antibiotics contains resistant bacteria, but the cow-pie results suggest there are more factors promoting resistance besides antibiotic use. Something about manure itself may encourage naturally resistant bacteria to increase.
The findings should not, however, give the impression that resistance is everywhere, notes Lance Price, a microbiologist at George Washington University(who was not involved in the study). "We can control this. There's very clear evidence that when we turn off the antibiotic tap, we bring down drug-resistant bacteria," says Lance.
Next on the farm-to-table schedule, Handelsman will test whether radishes grown in soil treated with cow manure are capable of taking up resistant genes from bacteria through their vascular system(循环系统). "They have veins(血管)just like us," she says. "We don't have any evidence yet that they're taking up the bacteria, but it's a really interesting possibility."
1. What does Jo Handelsman's research focus on?A.How antibiotics makes its way onto our table. |
B.What restrictions should be put to antibiotics use. |
C.How antibiotics-resistant bacteria reach human beings. |
D.What damage the overuse of antibiotics does to humans. |
A.Drug-free cows produced manure with antibiotic-resistant bacteria. |
B.Synthetic nitrogen-based fertilizer did more good to the environment. |
C.Soil bacteria carrying antibiotic-resistant genes were increasing with time. |
D.Manure from pigs treated with antibiotics contained fewer resistant bacteria. |
A.provide more evidence that drug-resistance bacteria are dangerous |
B.suggest another possible explanation to the antibiotics problems |
C.emphasize the importance of feeding cows with no antibiotics |
D.show that the research findings may not be that worrisome |
A.It is very likely that widespread resistance to antibiotics is not inevitable. |
B.Plants grown in soil fertilized with cow manure may contain drug-resistant genes. |
C.There is possibility that radishes take up resistant genes wherever they are planted. |
D.The vascular system plays a key role in guarding radishes against bacteria. |
10 . Lily
Studying abroad is an area that is becoming increasingly interesting for researchers, as more students are choosing to do a semester, a year or even a degree in another country. In my research, I set out to establish whether young people attending a course abroad acquire more global awareness than students enrolled on similar courses in their home country, Using a comparative study of 50 Canadian undergraduates, half of whom studied abroad for varying lengths of time, there were shown to be considering gains in global awareness and these were not only noted by the students themselves but also their tutors.
Thomas
My research project asked ten students starting a year of study abroad to keep a daily record of their experiences. Having begun the diary a month before leaving home they continued it for a month after they returned. The primary reason for studying abroad in all cases was to polish their language skill. The students were allowed to write as freely as they wished by were asked to include comments on their language learning experience as well as on the strategies they used to cope with living in a new culture. Analysing the diaries, we found remarkably similar patterns. All the participants demonstrate a gradual recognition and acceptance of difference in other cultures and a new objectivity about their own culture as a result of their experience.
Jasmine
This paper reports on some research carried out last year into why students choose a period of study abroad, their reasons for selecting a specific destination, their behaviour when abroad and the extent to which the experience matches their expectations. Having administered a questionnaire to 1,000 international students studying at a number of universities in Australia, we got 696 responses. An initial analysis of the responses has revealed some interesting data suggesting that the key factor affecting all the areas we were investigating was the individual's personality and study interests. Country of origin and 'gender proved less significant than expected.
Jimmy
This research looked at the career paths of 35 young business people who had spent part of their university course at a foreign educational institution in order to ascertain whether those people had acquired greater cross-cultural perspectives through their experience of study abroad. Concerned about the lack of cultural awareness of their staff, a group of US business corporations proposed the research. The results are less conclusive than expected, but they do suggest that a period of study in a foreign country may help students to develop the cross-cultural awareness that US employers currently seek.
1. The passage is mainly about four researchers' findings on ________.A.the reasons for young students to study abroad |
B.the impact and effects of studying in another country |
C.the trend of more students furthering their study abroad |
D.the interest of students who once studied in another country |
A.Lily | B.Thomas | C.Jasmine | D.Jimmy |
A.Most of the researchers found the students global awareness increased. |
B.All of the researchers took a reserved attitude towards studying abroad. |
C.None of the researchers thought gender played a role in students' choice. |
D.Only one of the researchers did research on the subjects' career development. |