Anya Forger [834542] · MS 2018 · 쪽지

2022-09-13 16:33:09
조회수 6,773

개인적인 예열 지문 pick (230638)

게시글 주소: https://orbi.kr/00058378424

Simply maintaining yields at current levels often requires


new cultivars and management methods, since pests and


diseases continue to evolve, and aspects of the chemical,


physical, and social environment can change over several


decades. ( ① ) In the 1960s, many people considered


pesticides to be mainly beneficial to mankind. ( ② )


Developing new, broadly effective, and persistent


pesticides often was considered to be the best way to


control pests on crop plants. ( ③ ) Since that time, it has


become apparent that broadly effective pesticides can


have harmful effects on beneficial insects, which can


negate their effects in controlling pests, and that


persistent pesticides can damage non-target organisms


in the ecosystem, such as birds and people. ( ④ )


Also, it has become difficult for companies to develop


new pesticides, even those that can have major


beneficial effects and few negative effects.


Very high costs are involved in following all of the


procedures needed to gain government approval for


new pesticides. ( ⑤ )


Consequently, more consideration is being given to


other ways to manage pests, such as incorporating


greater resistance to pests into cultivars by


breeding and using other biological control methods.


* pesticide: 살충제  ** cultivar: 품종  *** breed: 개량하다


출처: 2023학년도 6월 모평 영어 38번 문항


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