If all the team members sit together in a room, a team is naturally formed.

When a disease of epidemic proportions threatens the public, scientists immediately get to work, trying to locate the source of affliction and find ways to combat. Vaccination is one of the effective ways to protect the (1)_____ population of a region or country which may be (2)_____ grave risk. The process of vaccination allows the patient's body to (3)_____ immunity to the virus or disease so that, if it is encountered, one can fight it (4)_____ naturally. To accomplish this, a small weak or dead (5)_____ of the disease is actually injected into the patient in a controlled environment, (6)_____ his body's immune system can learn to fight the invader (7)_____. Information (8)_____ how to penetrate the disease's defenses is (9)_____ to all elements of the patient's immune system in a process that occurs naturally, in which genetic information is passed from cell to cell. This makes sure that (10)_____ the patient later come into contact with the real problem, his body is well equipped and trained to (11)_____ with it, having already done so before.

There are, however, dangers (12)_____ in the process. (13)_____, even the weakened version of the disease contained in the vaccine proves (14)_____ much for the body to handle, resulting in the immune system (15)_____, and, therefore, the patient's death. Such is the case of the smallpox vaccine, (16)_____ to eradicate the smallpox epidemic that nearly (17)_____ the whole Native American population and killed massive numbers of settlers. (18)_____ 1 in 10,000 people who receive the vaccine (19)_____ the smallpox disease from the vaccine itself and dies from it. Consequently, the process, which is truly a (20)_____, may indeed hide some hidden curses.

Notes:

proportions(pl.)规模；程度；大小。affliction(疾病)痛苦。vaccination n.接种疫苗。eradicate v.根除，消灭。

A．entire

B．total

C．complete

D．complex

53 One of your project team members has made a technological breakthrough on an R & D project. The result will be new business for the company, as well as a company patent. The team member received a company bonus. The motivational strategy used here is:

A. Job enrichment

B. Linking pay and performance

C. Behavior. modification

D. Freedom in the work place

E. All of the above

171 One of your project team members has made a technological breakthrough on an R & D project. The result will be new business for the company, as well as a company patent. The team member received a company bonus. The motivational strategy used here is:

A. Job enrichment

B. Linking pay and performance

C. Behavior. modification

D. Freedom in the work place

E. All of the above

The answer depends on what kind of system is ultimately adopted.(47)The first is a special-purpose lane system, in which certain lanes are reserved for automated vehicles. The second is a mixed traffic system: fully automated vehicles would share the road with partially automated or manual driven cars. A special-purpose lane system would require more extensive physical modifications to existing highways, but it promises the greatest gains in freeway(高速公路) capacity.

Under either scheme, the driver would specify the desired destination, furnishing this information to a computer in the car at the beginning of the trip or perhaps just before reaching the automated highway. If a mixed traffic system was in place, automated driving could begin whenever the driver was on suitably equipped roads. If special-purpose lanes were available, the car could enter them and join existing traffic in two different ways. (48)As the driver approached the point of entry for the highway, devices installed on the roadside would electronically check the vehicle to determine it destination and to ascertain that it had the proper automation equipment in good working order. Assuming it passed such tests, the driver would then be guided through a gate and toward an automated lane. In this case, the transition from manual to automated control would take place on the entrance ramp.(49)The driver would steer onto the highway and move in normal fashion to a "transition" lane. The vehicle would then shift under computer control onto a lane reserved for automated traffic. (The limitation of these lanes to automated traffic would, presumably, be well respected, because all trespassers(非法进入者) could be swiftly identified by authorities.

Either approach to joining a lane of automated traffic would harmonize the movement of newly entering vehicles with those already traveling. Automatic control here should allow for smooth merging, without the usual uncertainties and potential for accidents.(50).

A. An alternative technique could employ conventional lanes, which would be shared by automated and regular vehicles.

B. Vehicles traveling on it are assigned different lanes according to their destinations.

C. And once a vehicle had settled into automated travel, the driver would be free to release the wheel, open the morning paper or just relax.

D. What might driving on an automated highway be like?

E. One method would use a special onramp(入口引道).

F. Two distinct types are on the drawing board.

Charm is the ultimate weapon, the supreme seduction, against which there are few defenses. If you've got it, you need almost nothing else, neither money, looks, nor pedigree. 41. It is a gift, only given to give away, and the more used the more there is. It is also a climate of behavior. set for perpetual summer and controlled by taste and tact.

Real charm is dynamic, an enveloping spell which mysteriously enslaves the senses. It is an inner light, fed on reservoirs of benevolence which well up like a thermal spring. It is unconscious, often nothing but the wish to please, and cannot be turned on and off at will.

42. You recognize charm by the feeling you get in its presence. You know who has it. But can you get it, too? Probably, you can't, because it's a quickness of spirit, an originality of touch you have to be born with. Or it's something that grows naturally out of another quality, like the simple desire to make people happy. Certainly, charm is not a question of learning tricks, like wrinkling your nose, or having a laugh in your voice, or gaily tossing your hair out of your dancing eyes. 43. Such signs, to the nervous, are ominous warnings which may well send him streaking for cover. On the other hand, there is an antenna, a built-in awareness of others, which most people have, and which care can nourish.

But in a study of charm, what else does one look for? Apart from the ability to listen-rarest of all human virtues and most difficult to sustain without vagueness--apart from warmth, sensitivity, and the power to please, what else is there visible? 44. A generosity, I suppose, which makes no demands, a transaction which strikes no bargains which doesn't hold itself back till youv'e filled up a test-card making it clear that you're worth the trouble. Charm can't withhold, but spends itself willingly on young and old alike, on the poor, the ugly, the dim, the boring, on the last fat man in the corner. 45. It reveals also in a sense of ease, in casual but perfect manners, and often in a physical grace which springs less from an accident of youth than from a confident serenity of mind. Any person with this is more than just a popular fellow, he is also a social healer.

(41)