It is generally believed that we are getting cleaned when we step under a shower. We are, but we’re also giving a home to lots of tiny little creatures we didn’t even know about. A showerhead carries thousands of bacteria called Mycobacterium．These can cause problems like coughs and tiredness, and a general feeling of poorliness (身体不舒服). When you turn on the water, the bacteria go from the showerhead onto and into your body.

??? This is a finding of Norman R. Pace and his team at the University of Colorado, in the US. The scientists investigated bacteria in all kinds of human environment, including showers．Pace's team looked at 45 showerheads in nine American cities. They discovered that 30 percent of them had large amounts of flying Mycobacterium.

But Pace said that they pose few threats to the health．Only those with a weak immune system might need to worry．He told the New York Times that the bacteria are not as unpleasant as might be thought．He said that having a shower is no more dangerous than anything else we do in the morning．

But for those who feel sick about the idea of all those microorganisms (微生物), he had some advice. Let the water run for 30 seconds before getting into the shower. Why? The number of bacteria is smaller than that when the water is just turned on. If that seems like a waste of water, he added that you could also change your showerhead every few months.

??? However, Pace had good news too. He has also been testing the air in US subways. Apart from iron particles (粒子), which are ground off the track by the wheels of trains, subway air is fresh. The reason is that a train’s movement pumps fresh outdoor air into the tunnels.

??? Pace explained that he wanted to understand the natural microbial environments of public places. This kind of knowledge might help discover the microbes to be used in a bioterrorist (生物恐怖分子) attack.

1.From the finding of Norman R. Pace, after taking a shower, we might cough or feel tired because?????? .

A. it’s easy to get a cold when taking a bath

B. the showerhead carries many bacteria causing illness

C. we don’t get cleaned while showering

D. we don’t get a weak immune system

2.According to the passage, which of the following is TRUE?

A. Hot water could kill most of bacteria in showerheads.

B. Of 45 showerheads surveyed in nine cities, 30 carried large amounts of Mycobacterium.

C. Changing showerheads is the only way to avoid microorganisms.

D. Shower water contains much less bacteria after being left to run for 30 seconds.

3.We can learn from the third paragraph that ????? .

A. having a shower in the morning is more dangerous than at other time

B. the bacteria always threat people’s health

C. there is no reason to fear microorganisms for people with strong immune system

D. it is better to do some exercise in the morning than have a shower

4.The underlined word “pose” in the third paragraph probably means “______”．

A. cause     ?????????? B. avoid       ????????? C. describe ????????? D. promise

5.What contributes to fresh air in US subways?

A. The train’s movement.         ???????????????? B. Iron particles．

C. Train wheels. ???????????????????????????? D. Air conditioners on the trains．

根据句意及首字母或汉语提示, 写出各句中所缺单词的正确形式。(每空一分, 共10分)

1.He has all the                （品质）of a successful businessman .

2. The company where my brother works                （运输） cars across the country.

3.We were             （营救）from the sinking ship by a passing boat .

4.It is well-known that all men are ___________ (平等的) in the eyes of the law.

5.What is your father’s _____________(态度) towards your plan?

6.Under our teacher’s g______________, we finished the work smoothly.

7.After repeated attempts they f____________ succeeded in this experiment.

8.After g_____________ from Qinghua University, she worked as an engineer.

9.The students who were t         in the burning building were crying for help .

10. Lucy is a r_____________ girl, and you can depend on her.

Below is a page adapted from an English dictionary.
Important words to learn:E Essential I improver A Advanced
Pump
noun [C] DEVICE 1 A a piece of equipment which is
used to cause liquid, air or gas to move from one place
gas pump SHOE2[USUALLY PLURAL]US (UK COURT SHOE)
8 type of plain shoe with a raised HEEL and no way of
fastening it to the foot which is worn by women
3 [USUALLY PLURAL]  type of flat shoe, like a BALIET dancer’s shoe when is worn by women 4 [USUALLY PLURAL]UK a flat·shoe made of heavy cloth, which is worn by children for doing sports.
verb LIQUID/GAS1 [T USUALLY·ADV/PREP] to force
liquid or gas to move somewhere:our latest machine can
pump a hundred gallors a minute , o The new wine is
pumped into stirage tanks.o The heart pumos blood
through the arteries/round the body. INFORMATION2[T]
INFORMAL to keep asking someone for information,
especially in a way that is not direce:She was pumping me
for details of the new projece.
Idioms pump sb’s hand to SHAKE someone’s hand
(="hold" their hand and move it up and down, espacially
In order to greet them)·pump lron INFORMAL to lift
Heavy weights for exercise: These days both men and
Women pump iron far fitnets.
Pharsal verbs pump sth into sth to spend    
Money trying to make something operate succesfully:
They had been pumpinh money into the business for some
Years without seeing any results.
Pump sth out(M)REMOVE1 to remove water or other
liquid from something using a pump:We took turns
pumping out the boat.PRODUCE2 INFORMAL DISAPPROVING
to produce words or loud music in a way that is repeated,
forceful and continuous: The government keeps pumping
out the same old propaganda.O The car radio was
pumping out music with a heacy beat.
Pump out sth someone’s stomach is pumped out, a
Poisonous substance is removed from it by being-sucked
Through a tube. She had to go to hospital    
Stomach pumped out.
Pump sth up [M] INFORMAL to make someone feel more
contident or excited: He was offering them advince and
trying to pump them up.O[R]The players were pumping
themselves up by singing the national anthem, before the
game.
Pump sth up[M]1 to fill something with air using a
pump: Have you pumped up the balloons yet?O I must
pump the tyres up on my bike.2 INFORMAL to increase
something by a large amount:The US was able to pump
up exports.O Let’s pump up the tolume a bit!
Pump-action /pamp ek/ n/adjective describes a device which operates by forcing song     especially air ,in or out of a closed space or container, a pump-action shotgun , a pump   action   
Pump priming noun specialized the activity of helping a business ,programm ,economy    etc   to  develop by  giving it money.  The government is carding small,pump-priming grants to single moter who are starting their own businesses.
Pun
noun a humorous use of a word or phrase which has several meanings or which sound like another word:she made a couple of dreadful puns.  This is a well-known joke based on a pun “What’s  black and white and red   all  over   A newspaper
Verb  to make a pun
Punch
Noun      (c)a forceful hit with a fist (="closed" hand) she gave him a punch lik on us in the nose effect
2 U the power to be interesting and have a strong effect on people ,I felt the performance speech presntation lacked punch DRnk  3  a cold or hot drink made by mixing fruit juices pieces of frut and often wine or other alcoholic drinks tool  4  a piece of equoce  which cuts boles in a maena by pushing a piece of met through it a ticket punch have you seen the hole puneh anywhere?
Verb(t) hit 1  to hit someone or something with your FIST (="closed" hand);He punched him in the stomach.2 MALY US to hit with your fingers the bugins on a telephone or the kdys on a keys on a keyboard USE TOCL make a hole in something with a special piece of equipment:I was just punching holes in some sheets of paper  .This belt’s too big .I’ll have to punch an extra hole in it.
Idioms punch sb’s lights out informal to hit someone repeatedly very hard punch the clock us to put a card into a special machine to record the times you amive at and leave work:After 17 years of punching the clock,he just disappeared one morning and was mever heard from again.
【小题1】
What does the word“pump”mean in “He ran in every five minutes to pump me about the case”?

Harvard University named historian Drew Gilpin Faust as its first female president on Sunday, ending a lengthy and secretive search to find a successor（接任者）to Lawrence Summers .
The seven-member Harvard Corporation elected Faust, a noted scholar on History of the American South and dean of Harvard’s Radcliffe Institute for Advanced Study, as the university’s 28th president.
“This is a great day, and a historic day for Harvard,” James R. Houghton, chairman of the presidential search committee, said in a statement. “Drew Faust is an inspiring and accomplished leader, a superb scholar, a dedicated  teacher, and a wonderful human being.”
Her selection is noteworthy given the heated debates over Summers’ comments that genetic differences between the sexes might help explain the lack of women in top science jobs.
Faust has been dean of Radcliffe since 2001, two years after the former women’s college was combined into the university as a research center with a mission to study gender issues.
Some professors have quietly groused that the 371-year-old university is appointing a fifth president who is not a scientist. No scientist has had the top job since James Bryant Conant retired in 1953; its last four have come from the fields of classics, law, literature and economics.

Harvard University named historian Drew Gilpin Faust as its first female president on Sunday, ending a lengthy and secretive search to find a successor to Lawrence Summers.
The seven-member Harvard Corporation elected Faust, a noted scholar on History of the American South and dean of Harvard’s Radcliffe Institute for Advanced Study, as the university’s 28th president.
“This is a great day, and a historic day, for Harvard,” James R. Houghton, chairman of the presidential search committee, said in a statement. “Drew Faust is an inspiring and accomplished leader, a superb scholar, a dedicated teacher, and a wonderful human being.”
Her selection is noteworthy given the heated debates over Summers’ comments that genetic differences between the sexes might help explain the lack of women in top science jobs.
Faust has been dean of Radcliffe since 2001, two years after the former women’s college was combined into the university as a research center with a mission to study gender issues.
Some professors have quietly groused that the 371-year-old university is appointing a fifth president who is not a scientist. No scientist has had the top job since James Bryant Conant retired in 1953; its last four have come from the fields of classics, law, literature and economics.
Faust is the first Harvard president who did not receive a degree from the university since Charles Chauncy, a graduate of Cambridge University, who died in office in 1762. She attended the University of Pennsylvania.
“Teaching staff turned to her constantly,” said Sheldon Hackney, a former president of the University of Pennsylvania and historian who worked closely with Faust. “She’s very clear. She has a sense of humor, but she’s very strong-minded. You come to trust in her because she’s so solid.”
【小题1】Which might be the best title for the passage?