Inference Question の解き方ーーーTOEFL iBT
What does the author imply about changes in the African environment during this time period?という問いを見ると、imply が目に飛び込んできます。これで「この内容は本文中に明確には述べられていない」とわかるからです。「この期間中のアフリカの環境における変化について筆者が暗示しているものはどれか」という本設問。それでは本文を読んでいきましょう。There's evidence of agriculture in Africaprior to 3000 B.C. It may have developed independently, but many scholars believe that the spread of agriculture and iron throughout Africa linked it to the major centers of the Near East and Mediterranean world. The drying up of what is now the Sahara deserthad pushed many peoples to the south into sub-Saharan Africa. These peoples settled at firstin scattered hunting-and-gathering bands, although in some places near lakes and rivers,
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