Asia is four times as large as Europe. ＝Asia is ①______________

　　of Europe. ＝Asia is ②______________

　　than Europe. 【答案】①four times the size ②three times larger 【即时巩固】 语法填空 ②We can't exist ____________ the money our parents are earning.　 ③There__________

　　(existence) several theories that explain how the world come into __________

　　(exist)． 【答案】①exist　②on　③exist；existence

　　3．puzzle n．谜；难题 vt.使困惑；使糊涂 【考点激活】 ①Tenyson's care for the elderly woman ____________ the flower seller. 丁尼生对老妇人的照顾使卖花的人很迷惑。(2017福建)

　　(1)puzzle about/over sth.　苦苦思索；仔细琢磨 (2)puzzling adj.　令人迷惑不解的 puzzled adj.　迷惑不解的(常用来修饰人) be puzzled by　被……迷惑 (3)be in a puzzle about/as to sth.　对某事迷惑不解 【知识建构】

　　People have long puzzled over how the Egyptians moved such huge rocks. 很长时间以来，人们一直在苦思冥想，埃及人是如何移动这些巨大石块的。(2015四川) 【即时巩固】 语法填空 The physics problem was ②____________ (puzzle)．The student looked at it with a ③____________(puzzle) expression.She was in ④______________puzzle as to what to do next.I thought she ⑤________________ (puzzle) by it. 【答案】①puzzled　②puzzling　③puzzled　④a　⑤was puzzled

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