SECTION 2 Time——30minutes
25 Questions
25 Questions
Question 1——7
In a game，exactly six inverted cups stand side by side in a straight line， and each has exactly one ball hidden under it.The cups are numbered consecutively 1 through 6. Each of the balls is painted a single solid color.The colors of the balls are green， magenta，
orange， purple，red，and yellow.The balls have been hidden ynder the cups in a manner that conforms to the folowing conditions：
The purple ball must be hidden under a lower-numbered cup than the orange ball.
The red ball must be hidden under a cup immediately adjacent to the cup under
which the magenta ball is hidden.
The green ball must be hidden under cup 5.
1.Which of the following could be color of the balls under the cups，in order from 1 through 6？
（A） Green，yellow，magenta，red，purple，orange
（B） Magenta，green，purple，red，orange，yellow
（C） Magenta，red，purple，yellow，green，orange
（D） Red，Purple，magenta，yellow，green，orange
（E） Red，purple，magenta，yellow，green，orange
2.If the magenta ball is under cup 4， the red ball must be under cup
（A） 1
（B） 2
（C） 3
（D） 4
（E） 5
3.A ball of which of following colors could be under cup 6？
（A） Green
（B） Magenta
（C） Purple
（D） Red
（E） Yellow
4.If the purple ball is under cup 4，the orange ball must be under cup
（A）1
（B）2
（C）3
（D）5
（E）6
10.A worldwide banon the production of certain ozone-destroying chemicals would provide only an illusion of protection.Quantities of such chemicals，already produced，exist as coolants in millions of refrigerators.When they reach the ozone layer in the atmosphere，their action cannot be halted.So there is no way to prevent these chemicals from damaging the ozonelayer further.
Which of the following， if true，most seriously weakens the argument above？
（A）It is impossible to measure with accuracy the quantity of ozone-destroying chemicals that exist as coolants in refrigerators.
（B）In modern societies，refrigeration of food is necessary to prevent unhealthy and potentially life-threatening conditions.
（C）Replacement chemicals that will not destroy ozone have not yet been developed and would be more expensive than the chemicals now used as coolants in refrigerators.
（D）Even if people should give up the use of refrigeration，the coolants already in existing refrigerators are a threat to atmospheric ozone.
（E）The coolants in refrigerator can be fully recovered at the end of the useful life of the refrigerators and reused.
