Question

まりな

・どうして、moreが主語になれるのでしょうか？
・to be worried aboutは、どうしてmoreにかかると分かるのでしょうか？

52
→解答 本冊 130ページ)
(本 )
OFor more than 50 years, the health of American astronauts has
been a concern of * NASA- the National Aeronautics and Space
Administration. ®NASA does not let the risk of cancer for its
astronauts rise more than three percent during their lifetime.
®But there is more to be worried about than a possible increased
risk of cancer. s
* NASA(National Aeronautics and Space Administration) 「アメリカ航空宇宙局」
(東京経済大学)

問題 別冊 57 ページ
52
比較対象の把握④
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(For more than 50 years), sthe health of American astronauts
has been ca concern (of NASA - the National Aeronautics and
Space Administration). SNASA vdoes not let othe risk of cancer
2
(for its astronauts) (v)® rise (® more than three percent (during their
Point
lifetime)). But®there vis smore (to be worried about)(than a
possible increased risk of cancer).
To1
nbm