W: Prof Schneider, you and three colleagues just published new research in the Proceedings of the National (US) Academy of Sciences. Could you explain what this tells us
M: Many current investigations into climate change rely on statistical or physical models--and all models rely on assumptions.
We thought why not ask plants and animals directly if they have felt any climate changes lately We wanted to find out if nature had more credible answers than models alone the animals and plants in nature can give us independent evidence of human induced global warming.
So we looked at more than 130 different plant and bird species in the northern hemisphere--mainly in Northern America and Europe--to see how flowering and migration times have changed. And we compared our findings with a state-of-the-art climate model driven by natural forces like volcanic eruptions, human pressures like greenhouse gas emissions and the combination.
Normally, such model-driv
A. Establishing physical models
B. Establishing statistical models.
C. Making assumptions about climate change.
D. Finding evidence in animal and plant species.
W: Prof Schneider, you and three colleagues just published new research in the Proceedings of the National (US) Academy of Sciences. Could you explain what this tells us
M: Many current investigations into climate change rely on statistical or physical models--and all models rely on assumptions.
We thought why not ask plants and animals directly if they have felt any climate changes lately We wanted to find out if nature had more credible answers than models alone the animals and plants in nature can give us independent evidence of human induced global warming.
So we looked at more than 130 different plant and bird species in the northern hemisphere--mainly in Northern America and Europe--to see how flowering and migration times have changed. And we compared our findings with a state-of-the-art climate model driven by natural forces like volcanic eruptions, human pressures like greenhouse gas emissions and the combination.
Normally, such model-driv
A. Flowering and migration.
B. Volcanic eruption.
C. Greenhouse gas emissions.
D. Human activities.
Passage Three
It began as just another research project, in this case to examine the effects of various drugs on patients with a severe mood disorder. Using an advanced brain scanning technology--the clumsily named echo-planar magnetic resonance spectroscopic imaging (磁共振光谱成像 ) procedure, or EP-MRSI--researchers at Boston’s McLean Hospital scanned the medicated and un-medicated brains of 30 people with bipolar disorder in order to detect possible new treatments for the more than 2 million American adults who suffer from the disease.
But something unexpected happened. A patient who had been so depressed that she could barely speak became ebullient after the 45-minute brain scan. Then a second patient, who seemed incapable of even a smile, emerged actually telling jokes. Then another and another. Was this some coincidence Aimee Parow, the technician who made these observations didn’t think so. She mentioned the pa
A. who has bipolar disorder
B. what improves people’s moods
C. whether magnetic scanning is a treatment
D. how some patients respond to some drugs
Directions:
You have made an appointment with Prof. Li, but failed to keep it. Write a letter to your teacher to
1) apologize for your failure to keep the appointment;
2) explain your reason to your teacher;
3) express your wish to make another appointment.
You should write about 100 words on ANSWER SHEET 2.
Do not sign your own name at the end of the letter. Use "Li Ming" instead.
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