请赐教 lsat-1-Iv-8，16

christinewxy

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请教 lsat-1-Iv-8，16
[face=Times New Roman]8. Dr. Sheila Porter plans to run an experiment using nursing students. Each student will be shown either a pleasant nature film or a disturbing horror film. Each student will be observed by someone who—looking only at the student’s facial expressions—must ascertain which film is being shown. Students shown the horror movie are told to hide their feelings in order to convince the observer that they are watching a pleasant film. Dr. Porter hypothesizes that all the students in the experiment who are convincing will be among the best at working with patients. The hypothesis will be tested by comparing the convincing students and unconvincing students in terms of their performance with patents.

Which one of the following incidents best illustrates Dr. Porter’s hypothesis?

(A) Niles, the most convincing student in the experiment, later went on to become a physician.

(B) After graduating, Yoshiro, a nursing student who was convincing in the experiment, helped care for Bram, a patient at a hospital. Bram recovered from his operation.

(C) After graduating, Kim, a nursing student in the experiment who watched the nature film, was removed from the staff of a hospital for unacceptable performance in patient care.

(D) Daria, a nursing student who was convincing in the experiment, later received “A’s” in those classes in which working with patients in a teaching hospital was the sole basis of her grades.

(E) Marite, a nursing student who was not convincing in the experiment, later quit nursing school.

答案： D，不知道该题的出题点，请指教。
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16. History textbooks frequently need to be revised. The reasons for this are clear new discoveries of documents and remains, the discovery of mistaken inferences in prior histories, the discovery of previously unnoticed relationships among data, and the application of hitherto undiscovered principles of natural science all may indicate inadequacies in current history texts. Any of these considerations any require that the past be reinterpreted in a manner that is new and more illuminating.

Which one of the following can be inferred from the argument in the passage?

(A) The interpretation of historical events is affected by natural science.

(B) The past is constantly renewed because of illuminating reinterpretations.

(C) History books are outdated as soon as they are written.

(D) Natural scientists also function as historians.

(E) Historians’ mistaken inferences are caused by unnoticed relationships among data.

答案：A，我觉得A仅仅是复述原文的一个原因，不足以“infer”.  请赐教
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mike1999

首先第一题要在阅读时注意提炼出要点：本题提干的假定是：convincing---〉 will be among “the best'' at" working with patients" .只有选项D同时体现了这两者。
第二题 infer 仅仅表示可以从文中的信息中得出的结论。只要结论符合文中的信息就可以，并不要求全部符合。类似于A,B,C-->D .我可以说从D可以推出A，你就不能说我没有同时推出B而否定A的准确性。这是一个充分性与必要性的问题。

christinewxy

谢谢MIKE，明白了！