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- 2010-10-11
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- 1970-1-1
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1. 25’
Background: Weight prevents spacecraft to go to Mars. Even the lightest craft can afford the
weight of fuel for the whole journey.
Premise: A new device can help to produce fuel for the return, so the weight of the fuel carried can decline.
Conclusion: The spacecraft with new equipment can go to Mars.
Assumption: New equipment wont add more weight
2. 25’
Background: Filling a cavity in a tooth is not a harmless procedure:
Premise: Cavities are harmful only if the decay reaches the nerves inside the tooth, and many cavities, if left untreated, never progress to that point.
Conclusion: Dentists should not fill a cavity unless the nerves inside the tooth are in imminent danger from that cavity
Support: Cavity without imminent danger wont have other problems
3. 25’
Background: Claim: Horoscopes determine people's personalities.
Premise: Twins have similar personalities. But two persons born on the same day, one in NY,one in
Tokyo, have great differences in personalities.
Conclusion: This claim is false
Assumption: Gap: Born in NY and Toronto have the same horoscopes
4. 35s
Background: Media has played a significant role on the election outcome.
Premise:
Both of the two main parties have devoted much more money to the propaganda to win support every year.
No independent or third-party candidate has won any important election in recent years
Conclusion: The reports of the ends of the two parties are premature at best.
Support: Third party has no money to support that
5. 23’
Background: Psychologists conducted a series of experiments to test the effect upon schoolchildren of violence in films
Premise
2组孩子,一组看male model暴力的电影一组看female model暴力电影,第一组比第二组更容易产生暴力
Conclusion: Children are more likely to imitate violent behavior on film when a male model is shown than when a female model is shown.
Weaken: 1.开始参加的孩子不同
2. male model容易模仿
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