SpeakerB: it’s a present from my girlfriend.
SpeakerA: She certainly has the taste.
A want to know how come? B I like it so much
C Thank you for saying it D you may take it
13、Smith : Mary, I hate to say goodbye, but I have to.
Mary: , Smith . I hope to see you again.
A Be careful B Nice to meet you C as you like D Take care
14、Customer : This suit looks nice. ?
Assistant: yes, of course. The fitting room is over there .
A How much is it B Can I try it C How can I buy it D Can I try it on
15、Paula: Seems colder , today, ?
Peter: it is colder. It was on the weather forecast.
Paula: Was it ? I ‘m sure it’s not normally this cold at this time of year.
A or is it just me B or is it just for me C or only I felt it D or just I ‘m feeling it
二、阅读理解,4篇文章 20 道问题,每题 2分,共 40 分。
Passage 1
Spending 50 minutes with a cell phone close to your ear is enough to change brain
cell activity in the part of the brain closest to the antenna(天线). But whether that causes
any harm is not clear, scientists at the National Institute of Health said at a conference
last month, adding that the study will not likely settle concerns of a link between cell
phones and brain cancer. “What we showed is glucose (葡萄糖) metabolism(代谢)(a sign
of brain activity) increases in the brain in people who were exposed to a cell phone in the
area closest to the antenna,” said Dr. Nora Volkow of the NIH, whose study was
published in the Journal of the American Medical Association. The study was meant to
examine how the brain reacts to electromagnetic fields caused by wireless phone
signals.
Volkow said she was surprised that the weak electromagnetic radiation( 电磁辐射)
from cell phones could affect brain activity, but she said the findings do not shed any light
on whether cell phones cause cancer. “This study does not in any way indicate that.
What the study does is to show the human brain is sensitive to electromagnetic radiation
from cell phone exposures”Use of the devices has increased dramatically since they
were introduced in the early 1980s, with about 5 billion cell phones now in use worldwide.
Some studies have linked cell phone exposure to an increased risk of brain cancers,
but a large study bu the World Health Organization did not offer a clear answer to this.
Volkow’s team studied 47 people who had their brain examined while a cell phone was
turned on for 50 minutes and another while the phone was turned off. While there was no
complete change in brain metabolism, they found a 7 percent increase in brain
metabolism in the region closest to the cell phone antenna when the phone was on.
Experts said the results were interesting, but urged that they be understood with
great care. “Although the biological significance, if any, of increased glucose metabolism
from too much cell phone exposure is unknown, the results require further
investigation,”Henry Lai of the University of Washington in the U.S. and Dr. Lennart
Hardell of University Hospital in Sweden, wrote in an article in JAMA. “Much has to be
done to further investigate and understand these effects”They wrote.