2. 外语
  3. According to the passage, the chief purpose of explorers in going to unknown places in the past was ______. By saying "With Mar

According to the passage, the chief purpose of explorers in going to unknown places in the past was ______. By saying "With Mar

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问题 According to the passage, the chief purpose of explorers in going to unknown places in the past was ______.
By saying "With Mars the scientific stakes are arguably higher than they have ever been"(Line 1, Para. 4),the author means that ______.
选项 A、with Mars the risks involved are much greater than any previous space ventures
B、in the case of Mars, the rewards of scientific exploration can be very high
C、in the case of Mars, much more research funds are needed than ever before
D、with Mars, scientists argue, the fundamental interests of science are at issue
答案B
解析 句意推测题。本题考查的实际上是对该句中stake一词的理解。stake本身指的是“危险，冒险”，但它用于复数时一般指“赌注”。由于这一段后文谈论的都是火星探测的重要性，因此不难推知这一主题句的意思是对火星进行科学探索会有很高的回报，选[B]。
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