阅读理解：独立选项测试及句子选择
GRE 普通考试 知识点 8 2:22 英语旁白 · 英中内嵌字幕
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文本转录
This unit evaluates each of three select-all options against the passage, locates the sentence that does the exact requested job, and distinguishes a supported inference from an attractive unsupported claim.
本单元对照文章逐一判断多选题的三个选项，找出恰好完成所要求作用的句子，并区分有依据的推论与诱人但无依据的说法。
Classify each option as supported or unsupported by the passage.
按文章把每个选项分为有依据或无依据。
An unsupported statement need not be disproved; lack of evidence is enough.
无依据的说法不必被证伪；缺乏证据就足以排除。
Keep the text's conditions: a study of volunteers at one site does not support every site.
保留文本的条件：对一个地点志愿者的研究不能推及所有地点。
Select-all items need every correct choice and no extras.
多选题要选全所有正确项，且不能多选。
Select-in-passage asks for a sentence doing a specified job: evidence, concession, explanation, challenge or conclusion.
选句题要求找出完成指定作用的句子：证据、让步、解释、质疑或结论。
Read complete sentences rather than hunting a keyword; a sentence repeating the topic may do a different job.
要读完整的句子，而不是找关键词；重复话题的句子可能起着不同的作用。
Keep a short evidence note for each answer.
为每个答案写一条简短的依据笔记。
In this passage sentence 1 sets the change, sentence 2 reports the confounding observation, sentence 3 explicitly states the limit, and sentence 4 proposes a test.
这段文章中，第 1 句交代变化，第 2 句报告混杂的观察，第 3 句明确说出局限，第 4 句提出检验。
Supported: attendance rose, and another event offers an alternative.
有依据的是：出勤增加了，另一事件提供了别的解释。
Unsupported: the longer hours had no effect.
无依据的是：延长时间毫无作用。
Not proved to cause the increase does not mean proved to have no effect.
“未被证明导致增长”不等于“被证明毫无作用”。
Match the requested sentence function exactly.
要准确匹配所要求的句子作用。
A restates sentence 2.
A 复述第 2 句。
B follows from the changed user count and the stated limitation.
B 由用户数量的变化和所述局限推出。
C turns a lack of decisive evidence into impossibility.
C 把缺乏决定性证据变成了不可能。
Sentence 3 reports the confounding change; sentence 4 states why the conclusion stays limited, so select sentence 4.
第 3 句报告混杂变化；第 4 句说明结论为何仍有局限，所以选第 4 句。
Sentence 5 proposes a test that addresses the limitation.
第 5 句提出一个针对该局限的检验。
A successful trial could support an effect in this laboratory, but not a universal policy: other labs differ in tasks, access and costs.
成功的试验可以支持在这个实验室有效，但不能支持普遍政策：其他实验室的任务、条件和成本不同。
A fact such as usability with limited internet access would inform the wider recommendation.
像“在网络条件有限时仍可使用”这样的事实，才能支持更广泛的建议。
Check yourself.
自我检测。
An unsupported option need not be disproved.
无依据的选项不必被证伪。
The workshop limitation is sentence 3.
工作坊文章的局限在第 3 句。
In the booking passage A and B are supported, and sentence 4 is the limitation.
预约文章中 A 和 B 有依据，局限在第 4 句。
One successful trial does not prove a universal policy.
一次成功的试验不能证明普遍政策。