infection.A study done by University of Michigan, has shown information that seems to be true for
the general population.Babies are the most cold infected group, generally more than six colds in their
first year.Boys have more colds than girls up to the age of three.After three, girls are easier to get
infected with cold than boys, and teenage girls get three colds a year to boys" two.The general cold
infections continue to get less into adults.Elderly people who are in good health have as few as one
or two colds every year.One interesting thing is found among people in their twenties, especially
women, who show a rise in cold infection, because people in this age group are most likely to have
young children.
The study has also found that economy plays an important role as well.With more and more
income, the frequency at which colds are reported in the family is getting lower and lower.Families
with the lowest income usually sufferabout a third ally forces people to live in rooms more crowded
than rooms owned by richer people, and the crowding usually leads to more chances for the cold
virus to travel from person to person.Low income may also have an effect on our diet.Many scientists
believe that a poorer diet usually leads into more possibilities of cold infection.
1. Which of the age groups has the highest frequency of cold infection?
A. Small babies.
B. Teenage boys.
C. Adult women.
D. Elderly people.
2. The purpose of writing this passage is to________.
A. give the readers some tips to avoid cold infection
B. show a carefullmade study on cold infection
C. report the major reasons leading to cold infection
D. describe all the possible dangers of cold infection
3. How does economy play an important role in cold infection?
A. Families with lower income suffer less from cold infection.
B. People who have lower income enjoy living in crowded rooms.
C. Rich families can have better nutrition and never get infected.
D. People with higher income have fewer chances of infection.
4. From the passage we can infer that________.
A. age is the only important factor that connects with colds
B. families with the highest income will more easily get infected
C. people have lower frequency of infection as they grow older
D. a better diet may help people to fight against cold infection
dance and who I was taking. Although college was talked about, it was the least of my worries.
When I was graduating eighth grade and starting high school, my older brother was graduating
twelfth grade and going onto college. For my graduation, he gave me a card in which he wrote, "Enjoy
your four years. . . They go by fast." I remember not believing him then, but looking back. . . He was
right. Those four years shaped who I was as a person, pushed me to my limit and encouraged me to
become an adult.
However, I was so completely absorbed in my junior and senior years of high school, that when
someone spoke of college I brushed it off. I wasn"t ready to leave my comfort zone of having all of my
closest friends together and knowing what every single day was going to be like. Studying was something
I did only AFTER I nailed my halftime dance performance. I knew my parents wanted me to go to
college, so I told them I would go to community college (社区学院) and I didn"t worry about my SAT
(美国大学入学考试) scores.
When my senior year passed and everyone graduated and went off to their own colleges, I started to
wish I had done the same. My friends were living away, meeting new people, and discovering new
places, while I was living at home and driving to and from class every day. It seemed exactly like high
school. I hated it!I thought college was supposed to be different!Why didn"t I take more time to
research colleges and do the same?I ended up loving college and wishing I had four years to enjoy the
campus (大学校园) atmosphere instead of two.
My advice to anyone thinking about attending college is to think about it very seriously and look into
all of your choices well ahead of time. Now I have graduated and I am working fulltime and I would do
anything to go back to my high school days for a second chance!
B. He had been admitted for his gift in dance.
C. He was well prepared for the exam.
D. He believed his brother would help him.
B. buried himself in his study all the time
C. enjoyed talking about future college life
D. lived in the school except on holidays
B. He advised the author to value the years.
C. He encouraged the author to leave his comfort zone.
D. He suggested the author aim at a community college.
B. lonely
C. angry
D. pleased
When a young man starts to earn his own living,he can no
longer expect others to pay _____ his food,
his clothes, or his room, but he has to work if he wants to live
_____(舒适).If he spends most of his time
p____about in the way that he used to when he
was a child,he will go h____, that is to say,he
has nothing to eat. And if he breaks the laws of
_____ (社会) like he used to break the laws
of his parents,he may go to _____. If, however,
he works hard, k_____ out of trouble and has
good health,he can have the great happiness of seeing
_____ (自己) make steady progress in his job
and of building _____ his own position in society.
Being responsible not only bring about happiness
_____ also confidence.
Today I am going to ask you to support Wikipedia with a donation.
Wikipedia is built differently from almost every other top 50 website.We have a small number of paid
staff,just twentythree.Wikipedia content is free to use by anyone for any purpose.Our annual expenses are less than six million dollars.Wikipedia is run by the nonprofit Wikimedia Foundation,which I founded in
2003.
Wikipedia is driven by a global community of more than 150,000 volunteers-all devoted to sharing
knowledge freely.Over almost eight years,these volunteers have contributed more than 11 million
articles in 265 languages.More than 275 million people come to our website every month to access
information,free of charge and free of advertising.
But Wikipedia is more than a website.We share a common cause:Imagine a world in which every
single person on the planet is given free access to the sum of all human knowledge.That"s our commitment.
Your donation helps us in several ways.Most importantly,you will help us cover the increasing cost of
managing global traffic to one of the most popular websites on the Internet.Funds also help us improve
the software that runs Wikipedia-making it easier to search,easier to read,and easier to write for.We are
committed to increasing the free knowledge movement worldwide,by taking on new volunteers,and
building strategic partnerships with institutions of culture and learning.
Wikipedia is different.It"s the largest encyclopedia (百科全书) in history,written by volunteers.Like a
national park or a school,we don"t believe advertising should have a place in Wikipedia.We want to keep
it free and strong,but we need the support of thousands of people like you.
Thank you,
Jimmy Wales
1. What do the second and third paragraphs mainly talk about?
A. Why you should donate to Wikipedia.
B. How much the workers are paid.
C. How Wikipedia is run.
D. How many people contribute to Wikipedia.
2. All the following are the reasons for the need of your donation EXCEPT________.
A. to keep Wikipedia free for people all over the world
B. to update the software that runs Wikipedia
C. to raise the salaries of the staff
D. to pay the cost of running the website
3. What does the underlined word "That" in Paragraph 4 refer to?
A. Free access to all human knowledge.
B. Human knowledge.
C. Every single person.
D. A common cause.
4. Which of the following is TRUE about Wikipedia?
A. It only has 23 workers at present.
B. It will run a national park or a school.
C. It has got much help from other people.
D. It may put some advertisements to earn money.
5. What"s the author"s purpose of writing this text?
A. To introduce the differences between Wikipedia and other websites.
B. To improve the software that runs Wikipedia.
C. To make Wikipedia more popular.
D. To call on people to donate to Wikipedia.
You"re out to dinner.The food is delicious and the service is fine.You decide to leave a big fat tip.Why?The answer may not be as simple as you think.
Tipping, psychologists have found, is not just about service.Instead, studies have shown that tipping can be affected by psychological reactions to a series of different factors from the waiter"s choice of words, to
how they carry themselves while taking orders, to the bill"s total.Even how much waiters remind customers of themselves can determine how much change they pocket by the end of the night.
"Studies before have shown that mimicry (模仿) brings into positive feelings for the mimicker, "wrote
Rick van Baaren, a social psychology professor."These studies show that people who are being mimicked become more generous toward the person who mimicks them."
So Rick van Baaren divided 59 waiters into two groups.He requested that half serve with a phrase such
as, "Coming up!"Those in the other half were instructed to repeat the orders and preferences back to the
customers.Rick van Baaren then compared their takehome pay.The results were clear-it pays to mimic
your customer.The copycat (模仿者) waiters earned almost double the amount of tips to the other group.
Leonard Green and Joel Myerson, psychologists at Washington University in St.Louis, found the
generosity of a tipper may be limited by his bill.After research on the 1,000 tips left for waiters, cabdrivers, hair stylists, they found tip percentages in these three areas dropped as customers" bills went up.In fact, tip
percentages appear to plateau (稳定期) when bills topped $100 and a bill for $200 made the worker gain no bigger percentage tip than a bill for $100.
"That"s also a point of tipping, " Green says."You have to give a little extra to the cabdriver for being there to pick you up and something to the waiter for being there to serve you.If they weren"t there, you"d
never get any service.So part of the idea of a tip is for just being there."
passage?
B. 2.
C. 3.
D. 4.
B. people who are being mimicked usually tip less to the person who mimics them
C. the mimic waiters can get almost twice as much money as those who don"t mimick others
D. mimicry makes the mimicker feel bad
percentages?
B. think part of Mr Green"s explanation is reasonable
C. give his generous tip to waiters very often
D. support the opinions of Mr Green and Rick van Baaren about tipping
weak.It doesn"t have to be this way.
Come home refreshed after an active trip! Don"t be too tired!
Active vacations are often the most relaxing of all.It"s all in defining (定义) what an active vacation is.We don"t expect you to run slowly, or go backpacking.Well, we ask the vacationers who are not active
not to sit too long but to spend two to four hours a day doing things, such as walking the city streets,
exploring a nature protect, going to a zoo or biking along the ocean.
These kinds of activities aren"t just good for your physical health.They improve your mental health, even your spiritual health.And they make vacations memorable and worthwhile.And after all, isn"t that what you want from your vacation? Here are some fresh ideas to make your vacations as pleasurable as they are
active and healthy.
A walk at dawn or dusk is necessary.Try to make this a daily routine of life away from home, and you will ensure yourself both physical and spiritual adding.
Don"t allow yourself to spend your entire time sitting in front of the water.Whether it is the ocean, a
swimming pool, or a treelined lake, make sure you get into the water for swimming or games or even
walking.Heck, merely standing in waisthigh water is a good exercise, thanks to the action of the water.And you will feel so much more alive!
Many of us spend a large piece of our vacations on the road, either getting to and from our destinations, or using the car for sightseeing.But no matter how beautiful the scenery is, great, memorable vacations don"t happen in a car seat.Don"t wait for tiredness or nature"s call to get you to pull over.Frequently get out
and stretch, walk, picnic, shop, visit, and have fun.It"s important for your health and energy, and it makes
traveling a lot more active and interesting.
B. tell us how to make our vacations relaxing
C. show us where we should go for our vacations
D. explain to us why we feel tired when traveling
B. Pleasant but fired.
C. Feeling less tired.
D. Feeling regretted.
B. They just can keep us feel excited and confident.
C. They can bring us more chances to get out.
D. They can save us much time and make the trip meaningful.
B. not to spend too much time on the road
C. make a trip on foot
D. get out of the car for sightseeing
- 1命题“若a>b,则a﹣5>b﹣5”的逆否命题是[ ]A.若a<b,则a﹣5<b﹣5 B.若a﹣5>b﹣5,则a
- 2东南亚面积最大,人口最多的国家是( )A.泰国B.缅甸C.越南D.印度尼西亚
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- 4某人从A地出发,先上山,再下山到B地共走0.4千米,再由B地顺原路返回,已知上山速度为m千米/时,下山速度为n千米/时,
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