问题
选择题
国泰民安是中国人历来的社会理想，而要长治久安就必须居安思危，因为“思所以危则安矣”。居安思危、思所以危则安是因为[ ]
①安和危作为矛盾双方是不同质的事物 ②安和危作为矛盾双方是同质的事物 ③安和危作为矛盾双方可以互相包含 ④安和危作为矛盾双方可以互相转化
A．①②
B．②③
C．③④
D．①④
答案
答案：C
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国泰民安是中国人历来的社会理想，而要长治久安就必须居安思危，因为“思所以危则安矣”。居安思危、思所以危则安是因为[ ]
①安和危作为矛盾双方是不同质的事物 ②安和危作为矛盾双方是同质的事物 ③安和危作为矛盾双方可以互相包含 ④安和危作为矛盾双方可以互相转化
A．①②
B．②③
C．③④
D．①④
答案：C
| 完形填空 | ||||
| You have waited 45 minutes for the valuable 10 minutes' break between classes.But when the bell for the next class rings, you can't __1__ how quickly time has passed. If you are familiar with this __2__, you'll know how time flies when you are having fun and__3__ when you are bored.Now scientists have __4__ a reason why this is the case. Scans have shown that patterns of activity in the brain __5__ according to how we focus on a task. When we are __6__, we concentrate more on how time is passing.And this makes our brains __7__ the clock is ticking more slowly. In an experiment __8__ by a French laboratory,12 volunteers watched an image __9__ researchers monitored their brain activity. The volunteers were told to __10__ concentrate on how long an image appeared for, then __11__ the color of the image, and thirdly, study both duration and color.The results showed that__12__ was more active when the volunteers paid attention to__13__ subjects. It is thought that if the brain is __14__ focusing on many aspects of a task, it has to__15__its resources, and pays less attention to the clock.__16__, time passes without us really __17__ it, and seems to go quickly.If the brain is not so active, it concentrates its __18__ energies on monitoring the passing of time.__19__, time seems to drag. Next time you feel bored __20__, perhaps you should pay more attention to what the teacher is saying! | ||||
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