题型:填空题 题类:常考题 难易度:普通
Little-known facts about germs
Germs are everywhere and in so many forms. There are some steps you can take to help prevent the spread of germs in your personal space.
Computer keyboards can have more germs than a public toilet.Keys and spaces on a keyboard are main breeding grounds for bacterial and viral growth. Clean your keyboard regularly with specialized wipes for electronics,and remove dust with an air duster.
While it seems to make sense that covering your toothbrush would protect,the opposite is the case.With a cover on your brush,a more humid environment is created and more likely to encourage growth of germs.Wash your toothbrush when done,and allow it to air dry.Make sure you store it away from the toilet.
Hand sanitizer(洗手液) does not always replace soap and water washing.Hand sanitizer is great when you're not near a sink,and need to clean your hands.But given the choice of a spritz of sanitizer or good old soap and water,choose the soap and water route. Lather up and scrub hard for at least 20 seconds,and wash between your fingers and the back of your hands.Don't skimp with the hand sanitizer either—cover the same hand areas as for soap and water.
If you freeze foods that you suspect might be spoiled,freezing them will not kill the germs already in the food.Freezing prevents further bacterial growth,but when you thaw it out,the bacteria continue to increase and pollute your food.
A.Freezing food does not kill germs.
B.Try not to eat outside especially in summer.
C.Exposure to germs can lead to many illnesses.
D.Toothbrush covers do not protect your brushes from bacteria.
E.There are a lot of effective ways to get rid of germs in your house.
F.Soap and water are only a better germ fighter when done properly.
G.Some reports show five times more germs on a keyboard than on a public toilet.
A. It's not a simple matter to determine the nature of talent. B. Sports team owners spend millions of dollars attracting top talent C. The group interaction and its effect drew the researchers' attention. D. Stars apparently do not follow this basic principle of sportsmanship. E. Several recent studies examined the role of talent in the sports world. F. Building up a dream team is more complex than simply hiring the best talent. G. This task interdependence distinguishes baseball from football and basketball. |
Much of the work in today's world is accomplished (完成) in teams. Most people believe the best way to build a great team is to gather a group of the most talented individuals. {#blank#}1{#/blank#} Companies spend millions hiring top business people. Is their money well spent?
{#blank#}2{#/blank#} They focused on football, basketball and baseball. The results are mixed. For football and basketball, adding talented players to a team proves a good method, but only up to the point where 70% of the players are top talent; above that level, the team's performance begins to decline. Interestingly, this trend isn't evident in baseball, where additional individual talent keeps improving the team's performance.
To explain this phenomenon, the researchers explored the degree to which a good performance by a team requires its members to coordinate (协调) their actions. {#blank#}3{#/blank#} In baseball, the performance of individual players is less dependent on teammates. They conclude that when task interdependence is high, team performance will suffer when there is too much talent, while individual talent will have positive effects on team performance when task interdependence is lower. If a basketball star is, for example, trying to gain a high personal point total, he may take a shot himself when it would be better to pass the ball to a teammate, affecting the team's performance. Young children learning to play team sports are often told, "There is no I in TEAM." {#blank#}4{#/blank#}
Another possibility is that when there is a lot of talent on a team, some players may make less effort. Just as in a game of tug-of-war (拔河比赛), whenever a person is added, everyone else pulls the rope with less force.
{#blank#}5{#/blank#}. An A-team may require a balance-not just a players, but a few generous B players as well.
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