In the passage we are told that zoologists came from Vienna University to______.

A．Draw lessons from past merger decisions. B．Trust those who share opinions with you. C．Stay far away from merger activities. D．Try to accept opposing views.

A．and B．unless C．because

Until a few years ago, the most doctors could do was to counsel patients with bad breath about oral cleanliness. Now they are finding new ways to treat the usually curable condition. Bad breath can happen whenever the normal flow of saliva (唾液) slows. Our mouths are full of bacteria feeding on protein in bits of food and shed tissue. The bacteria emit evil smelling gases, the worst of which is hydrogen sulfide (硫 化物). Mouth bacteria thrive in airless conditions. Oxygen rich saliva keeps their numbers down. When we sleep, for example, the saliva stream slows, and sulfur producing bacteria gain the upper hand, producing classic “morning breath”. Alcohol hunger, too much talking, breathing through the mouth during exercise anything that dries the mouth produces bad breath. So can stress, though it’s not understood why. Some people’s breath turns sour every time they go on a job interview. Saliva flow gradually slows with age, which explains why the elderly have more bad breath trouble than younger people do. Babies, however, who make plenty of saliva and whose mouths contain relatively few bacteria have characteristically sweet breath. For most of us, the simple, dry mouth variety of bad breath is easily cured. Eating or drinking starts saliva and sweeps away many of the bacteria. Breakfast often stops morning breath. Those with chronic dry mouth find that it helps to keep gum, hard candy, or a bottle of water or juice around. Brushing the teeth wipes out dry mouth bad breath because it clears away many of the offending bacteria. Surprisingly, one thing that rarely works is mouthwash. The liquid can mask bad breath odor with its own smell, but the effect lasts no more than an hour. Some mouthwashes claim to kill the bacteria responsible for bad breath. The trouble is, they don’t necessarily reach all offending germs. Most bacteria are well protected from mouthwash under thick layers of mucus (粘液). If the mouthwash contains alcohol-as most do-it can intensify the problem by drying out the mouth. 第31题：The phrase “emanate from” in Paragraph 1 most probably means “________”. A) thrive on B) account for C) originate from D) descend from

A．low employment B．personal choice C．tax revenue D．home countries

A．sound B．tune C．music D．tone

A.useful B.efficient C.practical D.effective

A．True B．False P C．Not mentioned

A. It continued its escalating trajectory. B. The median CEO pay was over $10 million. C. Many board members regarded CEO's pay moderate. D. Board members took some measures to deal with CEO's high pay.

A．are equally kind and optimistic as their bosses B．appreciate and feel encouraged by the benefits package C．can't escape the unpleasant competition for power in the office D．are far away from office competition thanks to the innovation in managing

A．not to use an electric underblanket or an electric overblanket B．to use an underblanket of the low voltage type C．to switch off an underblanket of the low voltage type D．not to use an electric underblanket over you

A．stand firm B．stay awake C．speak loud D．shut up

A．low temperatures are created by using a house B．the house is made green in order to keep heat C．heat is prevented from escaping outside D．everything is kept green in a house

A. controversial proposals Can be found only among the presidential nominees． B. using pupils’test scores to identify ineffective teachers has been widely accepted． C. both Democratic presidential nominees support the idea of accountability． D. neither the Republican ilor the Democratic presidential nominees favor NCLB．

Since clothes are such an important source of social information, we can use them to manipulate people’s impression of us. Our appearance assumes particular significance in the initial phases of interaction that is likely to occur. An elderly middle class man or woman may be alienated (疏远…) by a young adult who is dressed in an unconventional manner, regardless of the person’s education, background, or interests. People tend to agree on what certain types of clothes mean. Adolescent girls can easily agree on the lifestyles of girls who wear certain outfits (套装), including the number of boyfriends they likely have had and whether they smoke or drink. Newscasters, or the announcers who read the news on TV, are considered to be more convincing, honest, and competent when they are dressed conservatively. And collage students who view themselves as taking an active role in their inter-personal relationships say they are concerned about the costumes they must wear to play these roles successfully. Moreover, many of us can relate instances in which the clothing we wore changed the way we felt about ourselves and how we act ed. Perhaps you have used clothing to gain confidence when you anticipated a stressful situation, such as a job interview, or a court appearance. In the workplace, men have long had well defined precedents and role models for achieving success. It has been otherwise for women. A good many women in the business world are uncertain about the appropriate mixture of “masculine” and “feminine” attributes they should convey by their professional clothing. The variety of clothing alternatives to women has also been greater than that avail able for men. Male administrators tend to judge women more favorably for managerial positions when the women display less “feminine” grooming (打扮)-shorter hair, moderate use of make up, and plain tailored clothing. As one male administrator confessed, “An attractive woman is definitely going to get a longer interview, but she won’t get a job.” 第31题：According to the passage, the way we dress ________. A) provides clues for people who are critical of us B) indicates our likes and dislikes in choosing a career C) has a direct influence on the way people regard us D) is of particular importance when we get on in age

A．mostly painted indoor scenes B．painted a portrait of one of his daughter C．was very wealthy D．did not produce a large number of paintin