{"id":9959,"date":"2026-08-20T12:28:30","date_gmt":"2026-08-20T03:28:30","guid":{"rendered":"https:\/\/dohokin.com\/?p=9959"},"modified":"2026-08-20T12:28:30","modified_gmt":"2026-08-20T03:28:30","slug":"topik-practice-topik-i-%ec%96%b4%ed%9c%98-topik-i-vocabulary-1-5-8-20-2026-gj-523b-mega-earth-exoplanet","status":"publish","type":"post","link":"https:\/\/dohokin.com\/?p=9959","title":{"rendered":"TOPIK Practice &#8211; TOPIK I \uc5b4\ud718 [TOPIK I Vocabulary] 1\u20135 (8\/20\/2026) &#8211; gj 523b mega earth exoplanet"},"content":{"rendered":"\n<style>\n.topik { font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Noto Sans KR',Arial,sans-serif; line-height:1.6; }\n.topik .q{ padding:16px; border:1px solid #e6e6e6; border-radius:8px; background:#fafafa; margin-bottom:16px; }\n.topik .meta{ color:#555; margin-bottom:10px; font-weight:600; }\n.topik .stem{ margin-bottom:10px; }\n.topik .options{ margin-top:8px; display:grid; gap:10px; }\n.topik .opt{ display:flex; align-items:flex-start; gap:8px; padding:10px 12px; border:1px solid #e0e0e0; border-radius:8px; background:#fff; cursor:pointer; }\n.topik .opt:hover{ border-color:#667eea; background:#f8f9ff; }\n.topik .opt input[type=radio]{ margin-top:3px; transform:scale(1.05); }\n.topik .key{ display:inline-block; min-width:22px; height:22px; border-radius:50%; background:#667eea; color:#fff; text-align:center; line-height:22px; font-weight:600; margin-right:4px; }\n.topik .answer{ display:none; margin-top:14px; padding:14px; background:#f8f9fa; border-left:4px solid #667eea; border-radius:8px; }\n.topik .btn{ display:inline-block; padding:8px 14px; border-radius:24px; background:linear-gradient(135deg,#667eea 0%,#764ba2 100%); color:#fff; text-decoration:none; cursor:pointer; margin-right:8px; }\n.topik .subtle{ color:#666; font-size:.93em; }\n.topik .q input[type=checkbox]:checked ~ .answer{ display:block; }\n.topik .q input[type=checkbox]:checked ~ .options .is-correct:has(input:checked){ background:#d4edda; border-color:#28a745; }\n.topik .q input[type=checkbox]:checked ~ .options .opt:has(input:checked):not(.is-correct){ background:#f8d7da; border-color:#dc3545; }\n.topik .q input[type=checkbox]:checked ~ .options .opt.is-correct{ outline:2px solid #28a745; }\n@media(max-width:768px){ .topik .opt{ padding:8px 10px; } }\n<\/style>\n<div class=\"topik\">\n<div class=\"q\">\n  <div class=\"meta\">[TOPIK I Vocabulary] 1<\/div>\n  <div class=\"stem\">GJ 523b\ub294 \uc6b0\ub9ac \ud0dc\uc591\uacc4 \ubc16\uc5d0 \uc788\ub294 ____\uc774\ub2e4.<\/div>\n  <input type=\"checkbox\" id=\"show_topikq_505182_0\" hidden>\n  <div class=\"options\">\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_505182_0\" value=\"A\">\n      <span class=\"key\">A<\/span><span class=\"txt\">\uc704\uc131<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_505182_0\" value=\"B\">\n      <span class=\"key\">B<\/span><span class=\"txt\">\ubcc4<\/span>\n    <\/label>\n    <label class=\"opt is-correct\">\n      <input type=\"radio\" name=\"topikq_505182_0\" value=\"C\">\n      <span class=\"key\">C<\/span><span class=\"txt\">\uc678\uacc4 \ud589\uc131<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_505182_0\" value=\"D\">\n      <span class=\"key\">D<\/span><span class=\"txt\">\uc6b0\uc8fc\uc120<\/span>\n    <\/label>\n  <\/div>\n  <div class=\"toggle\" style=\"margin-top:10px;\">\n    <label class=\"btn\" for=\"show_topikq_505182_0\">\uc815\ub2f5 \ud655\uc778\ud558\uae30<\/label>\n    <span class=\"subtle\">\ubcf4\uae30 \uc120\ud0dd \ud6c4 \ud074\ub9ad<\/span>\n  <\/div>\n  <div class=\"answer\">\n    <div><strong>\uc815\ub2f5:<\/strong> C. \uc678\uacc4 \ud589\uc131<\/div>\n    <div style=\"margin-top:6px;\"><strong>How to solve:<\/strong> The sentence describes GJ 523b as something located outside our solar system. The term for a planet outside our solar system is &#39;\uc678\uacc4 \ud589\uc131&#39; (exoplanet).<\/div>\n    <div style=\"margin-top:6px;\"><strong>Choice analysis (EN):<\/strong><\/div>\n    <div style=\"margin-left:10px;\">A \u2014 \uc704\uc131 (satellite) refers to a celestial body that orbits a planet.<\/div>\n    <div style=\"margin-left:10px;\">B \u2014 \ubcc4 (star) is a massive, luminous ball of plasma, like the Sun.<\/div>\n    <div style=\"margin-left:10px;\">C \u2014 \uc678\uacc4 \ud589\uc131 (exoplanet) is a planet that orbits a star other than the Sun, outside our solar system. This fits the context.<\/div>\n    <div style=\"margin-left:10px;\">D \u2014 \uc6b0\uc8fc\uc120 (spaceship) is a vehicle used for space travel.<\/div>\n  <\/div>\n<\/div>\n<div class=\"q\">\n  <div class=\"meta\">[TOPIK I Vocabulary] 2<\/div>\n  <div class=\"stem\">GJ 523b\ub294 2023\ub144\uc5d0 \ucc9c\ubb38\ud559\uc790\ub4e4\uc5d0 \uc758\ud574 \ubc1c\uacac\ub418\uc5c8\ub2e4. \ubc11\uc904 \uce5c \ub2e8\uc5b4\uc640 \ube44\uc2b7\ud55c \uc758\ubbf8\uc758 \ub2e8\uc5b4\ub294?<\/div>\n  <input type=\"checkbox\" id=\"show_topikq_564406_1\" hidden>\n  <div class=\"options\">\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_564406_1\" value=\"A\">\n      <span class=\"key\">A<\/span><span class=\"txt\">\uad00\ucc30\ub418\uc5c8\ub2e4<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_564406_1\" value=\"B\">\n      <span class=\"key\">B<\/span><span class=\"txt\">\ub9cc\ub4e4\uc5b4\uc84c\ub2e4<\/span>\n    <\/label>\n    <label class=\"opt is-correct\">\n      <input type=\"radio\" name=\"topikq_564406_1\" value=\"C\">\n      <span class=\"key\">C<\/span><span class=\"txt\">\ucc3e\uc544\uc84c\ub2e4<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_564406_1\" value=\"D\">\n      <span class=\"key\">D<\/span><span class=\"txt\">\uc5c6\uc5b4\uc84c\ub2e4<\/span>\n    <\/label>\n  <\/div>\n  <div class=\"toggle\" style=\"margin-top:10px;\">\n    <label class=\"btn\" for=\"show_topikq_564406_1\">\uc815\ub2f5 \ud655\uc778\ud558\uae30<\/label>\n    <span class=\"subtle\">\ubcf4\uae30 \uc120\ud0dd \ud6c4 \ud074\ub9ad<\/span>\n  <\/div>\n  <div class=\"answer\">\n    <div><strong>\uc815\ub2f5:<\/strong> C. \ucc3e\uc544\uc84c\ub2e4<\/div>\n    <div style=\"margin-top:6px;\"><strong>How to solve:<\/strong> The underlined word &#39;\ubc1c\uacac\ub418\uc5c8\ub2e4&#39; means &#39;was discovered&#39; or &#39;was found&#39;. We need to select the option that has a similar meaning.<\/div>\n    <div style=\"margin-top:6px;\"><strong>Choice analysis (EN):<\/strong><\/div>\n    <div style=\"margin-left:10px;\">A \u2014 \uad00\ucc30\ub418\uc5c8\ub2e4 (was observed) means to watch or monitor something.<\/div>\n    <div style=\"margin-left:10px;\">B \u2014 \ub9cc\ub4e4\uc5b4\uc84c\ub2e4 (was made\/created) means to produce or construct something.<\/div>\n    <div style=\"margin-left:10px;\">C \u2014 \ucc3e\uc544\uc84c\ub2e4 (was found) has a very similar meaning to &#39;\ubc1c\uacac\ub418\uc5c8\ub2e4&#39; (was discovered). This is the correct answer.<\/div>\n    <div style=\"margin-left:10px;\">D \u2014 \uc5c6\uc5b4\uc84c\ub2e4 (disappeared\/was gone) is the opposite of being found or discovered.<\/div>\n  <\/div>\n<\/div>\n<div class=\"q\">\n  <div class=\"meta\">[TOPIK I Vocabulary] 3<\/div>\n  <div class=\"stem\">GJ 523b\ub294 \uc9c0\uad6c\ubcf4\ub2e4 ____\uac00 \uc57d \ub450 \ubc30 \ub354 \ud06c\ub2e4\uace0 \uc54c\ub824\uc838 \uc788\ub2e4.<\/div>\n  <input type=\"checkbox\" id=\"show_topikq_990290_2\" hidden>\n  <div class=\"options\">\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_990290_2\" value=\"A\">\n      <span class=\"key\">A<\/span><span class=\"txt\">\ub098\uc774<\/span>\n    <\/label>\n    <label class=\"opt is-correct\">\n      <input type=\"radio\" name=\"topikq_990290_2\" value=\"B\">\n      <span class=\"key\">B<\/span><span class=\"txt\">\ud06c\uae30<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_990290_2\" value=\"C\">\n      <span class=\"key\">C<\/span><span class=\"txt\">\uc628\ub3c4<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_990290_2\" value=\"D\">\n      <span class=\"key\">D<\/span><span class=\"txt\">\uac70\ub9ac<\/span>\n    <\/label>\n  <\/div>\n  <div class=\"toggle\" style=\"margin-top:10px;\">\n    <label class=\"btn\" for=\"show_topikq_990290_2\">\uc815\ub2f5 \ud655\uc778\ud558\uae30<\/label>\n    <span class=\"subtle\">\ubcf4\uae30 \uc120\ud0dd \ud6c4 \ud074\ub9ad<\/span>\n  <\/div>\n  <div class=\"answer\">\n    <div><strong>\uc815\ub2f5:<\/strong> B. \ud06c\uae30<\/div>\n    <div style=\"margin-top:6px;\"><strong>How to solve:<\/strong> The sentence states that GJ 523b is &#39;about twice as big as Earth&#39;. The blank should refer to the dimension or magnitude of something. &#39;\ud06c\uae30&#39; means size.<\/div>\n    <div style=\"margin-top:6px;\"><strong>Choice analysis (EN):<\/strong><\/div>\n    <div style=\"margin-left:10px;\">A \u2014 \ub098\uc774 (age) refers to the duration of existence.<\/div>\n    <div style=\"margin-left:10px;\">B \u2014 \ud06c\uae30 (size) refers to the dimensions or magnitude of an object. This fits the context of being &#39;two times bigger&#39;.<\/div>\n    <div style=\"margin-left:10px;\">C \u2014 \uc628\ub3c4 (temperature) refers to the degree of hotness or coldness.<\/div>\n    <div style=\"margin-left:10px;\">D \u2014 \uac70\ub9ac (distance) refers to the space between two points or objects.<\/div>\n  <\/div>\n<\/div>\n<div class=\"q\">\n  <div class=\"meta\">[TOPIK I Vocabulary] 4<\/div>\n  <div class=\"stem\">\uc774 \uc678\uacc4 \ud589\uc131\uc5d0\ub294 \uc561\uccb4 \uc0c1\ud0dc\uc758 \ubb3c\uc774 ____ \uac00\ub2a5\uc131\uc774 \uc788\ub2e4.<\/div>\n  <input type=\"checkbox\" id=\"show_topikq_667868_3\" hidden>\n  <div class=\"options\">\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_667868_3\" value=\"A\">\n      <span class=\"key\">A<\/span><span class=\"txt\">\uc0ac\ub77c\uc9c8<\/span>\n    <\/label>\n    <label class=\"opt is-correct\">\n      <input type=\"radio\" name=\"topikq_667868_3\" value=\"B\">\n      <span class=\"key\">B<\/span><span class=\"txt\">\uc874\uc7ac\ud560<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_667868_3\" value=\"C\">\n      <span class=\"key\">C<\/span><span class=\"txt\">\uc5c6\uc5b4\uc9c8<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_667868_3\" value=\"D\">\n      <span class=\"key\">D<\/span><span class=\"txt\">\ubcc0\ud560<\/span>\n    <\/label>\n  <\/div>\n  <div class=\"toggle\" style=\"margin-top:10px;\">\n    <label class=\"btn\" for=\"show_topikq_667868_3\">\uc815\ub2f5 \ud655\uc778\ud558\uae30<\/label>\n    <span class=\"subtle\">\ubcf4\uae30 \uc120\ud0dd \ud6c4 \ud074\ub9ad<\/span>\n  <\/div>\n  <div class=\"answer\">\n    <div><strong>\uc815\ub2f5:<\/strong> B. \uc874\uc7ac\ud560<\/div>\n    <div style=\"margin-top:6px;\"><strong>How to solve:<\/strong> The sentence discusses the &#39;possibility of liquid water&#39; on the exoplanet. To express that something might be present or exist, &#39;\uc874\uc7ac\ud560&#39; (to exist) is the appropriate verb.<\/div>\n    <div style=\"margin-top:6px;\"><strong>Choice analysis (EN):<\/strong><\/div>\n    <div style=\"margin-left:10px;\">A \u2014 \uc0ac\ub77c\uc9c8 (to disappear) means to vanish.<\/div>\n    <div style=\"margin-left:10px;\">B \u2014 \uc874\uc7ac\ud560 (to exist, to be present) correctly expresses the possibility of water being there.<\/div>\n    <div style=\"margin-left:10px;\">C \u2014 \uc5c6\uc5b4\uc9c8 (to be gone, to cease to exist) is the opposite of existing.<\/div>\n    <div style=\"margin-left:10px;\">D \u2014 \ubcc0\ud560 (to change) means to become different.<\/div>\n  <\/div>\n<\/div>\n<div class=\"q\">\n  <div class=\"meta\">[TOPIK I Vocabulary] 5<\/div>\n  <div class=\"stem\">GJ 523b\ub294 &#39;\uac70\ub300 \uc9c0\uad6c&#39;\ub77c\uace0 \ubd88\ub9ac\ub294\ub370, \uc774\ub294 \uc9c0\uad6c\uc640 \ube44\uc2b7\ud55c \ud2b9\uc9d5\uc744 \uac00\uc84c\uc9c0\ub9cc ____\uac00 \ub354 \ud06c\uae30 \ub54c\ubb38\uc774\ub2e4.<\/div>\n  <input type=\"checkbox\" id=\"show_topikq_572270_4\" hidden>\n  <div class=\"options\">\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_572270_4\" value=\"A\">\n      <span class=\"key\">A<\/span><span class=\"txt\">\ubaa8\uc591<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_572270_4\" value=\"B\">\n      <span class=\"key\">B<\/span><span class=\"txt\">\uc911\ub825<\/span>\n    <\/label>\n    <label class=\"opt is-correct\">\n      <input type=\"radio\" name=\"topikq_572270_4\" value=\"C\">\n      <span class=\"key\">C<\/span><span class=\"txt\">\uc9c8\ub7c9<\/span>\n    <\/label>\n    <label class=\"opt\">\n      <input type=\"radio\" name=\"topikq_572270_4\" value=\"D\">\n      <span class=\"key\">D<\/span><span class=\"txt\">\uc790\uc804<\/span>\n    <\/label>\n  <\/div>\n  <div class=\"toggle\" style=\"margin-top:10px;\">\n    <label class=\"btn\" for=\"show_topikq_572270_4\">\uc815\ub2f5 \ud655\uc778\ud558\uae30<\/label>\n    <span class=\"subtle\">\ubcf4\uae30 \uc120\ud0dd \ud6c4 \ud074\ub9ad<\/span>\n  <\/div>\n  <div class=\"answer\">\n    <div><strong>\uc815\ub2f5:<\/strong> C. \uc9c8\ub7c9<\/div>\n    <div style=\"margin-top:6px;\"><strong>How to solve:<\/strong> The term &#39;\uac70\ub300 \uc9c0\uad6c&#39; (Mega-Earth) implies a planet similar to Earth but significantly larger or more massive. While &#39;\ud06c\uae30&#39; (size) is a factor, &#39;\uc9c8\ub7c9&#39; (mass) is a primary distinguishing characteristic that makes it &#39;mega&#39; compared to Earth.<\/div>\n    <div style=\"margin-top:6px;\"><strong>Choice analysis (EN):<\/strong><\/div>\n    <div style=\"margin-left:10px;\">A \u2014 \ubaa8\uc591 (shape) refers to the external form. Most planets are spherical.<\/div>\n    <div style=\"margin-left:10px;\">B \u2014 \uc911\ub825 (gravity) is a force related to mass, but &#39;\uc9c8\ub7c9&#39; is the more direct characteristic.<\/div>\n    <div style=\"margin-left:10px;\">C \u2014 \uc9c8\ub7c9 (mass) is a fundamental property that defines how much &#39;stuff&#39; a planet contains and contributes to it being a &#39;Mega-Earth&#39; (more massive than Earth). This is the correct answer.<\/div>\n    <div style=\"margin-left:10px;\">D \u2014 \uc790\uc804 (rotation) refers to the spinning motion of a planet on its axis.<\/div>\n  <\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>[TOPIK I Vocabulary] 1 GJ 523b\ub294 \uc6b0\ub9ac \ud0dc\uc591\uacc4 \ubc16\uc5d0 \uc788\ub294 ____\uc774\ub2e4. A\uc704\uc131 B\ubcc4 C\uc678\uacc4 \ud589\uc131 D\uc6b0\uc8fc\uc120 \uc815\ub2f5 \ud655\uc778\ud558\uae30 \ubcf4\uae30 \uc120\ud0dd \ud6c4 \ud074\ub9ad \uc815\ub2f5: C. \uc678\uacc4 \ud589\uc131 How to solve: The sentence describes GJ 523b as something located outside our solar system. The term for a planet outside our solar system is &#39;\uc678\uacc4 \ud589\uc131&#39; (exoplanet). Choice [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[325],"tags":[],"_links":{"self":[{"href":"https:\/\/dohokin.com\/index.php?rest_route=\/wp\/v2\/posts\/9959"}],"collection":[{"href":"https:\/\/dohokin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dohokin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dohokin.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/dohokin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9959"}],"version-history":[{"count":0,"href":"https:\/\/dohokin.com\/index.php?rest_route=\/wp\/v2\/posts\/9959\/revisions"}],"wp:attachment":[{"href":"https:\/\/dohokin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9959"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dohokin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9959"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dohokin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}