Unit 1 Great explorations第 2 课时 课文重难点句型讲解栏目导航巩 固 习 题1．In 1405, he set off from China on the first of seven great voyages. 1405 年，他从中国出发，开始了七次伟大航海之旅的首航。 固定短语 set off 是“出发；动身”的意思，set off for…=leave for…，前往某地。例如： After several months’ hard work, Peter set off for Beijing on holiday. 几个月的辛苦工作后，彼得动身去北京度假了。 介词 on 用于说明活动或状态，这种用法的短语还有 on business、on holiday。 2．It seemed that nowhere was too far for him to visit. 似乎对他而言，没有什么地方是遥不可及的。 本句 It 是形式主语，seem 用于固定句型“It seems that+从句”。例如： It seems that they are hungry. = They seem（to be）hungry. 似乎他们饿了。 因此，原句可改为 Nowhere seemed too far for him to visit. 注意 nowhere 表示否定，而“too…to do”也是表示否定的，并且该句型常与“so…that… 替换。”例如： They are too tired to do anything. = They are so tired that they can’t do anything. 他们太累，啥也不想做。 3．At the end of each voyage, Zheng He returned with many things that were seen in China for the first time, such as a giraffe from Africa．航行结束后，郑和带着许多在中国从未见过的东西归国，比如来自非洲的长颈鹿。 at the end of 表示“在……末期、末端、底”，如 at the end of March 三月底 介词短语 with many things 表伴随，that were seen in China for the first time 是定语从句，先行词是 many things，此时的 that 可用 which 替换。such as 相当于介词 like。例如： Every time my father comes home with something in his hand. 每次我爸回家时，手里拿着点东西。 I have many hobbies such as drawing and listening to music. =I have many hobbies like drawing and listening to music. 我有许多爱好，比如画画和听音乐。 巩 固 习 题一、根据课文内容，用所给单词的适当形式填空（未提供单词的，限填一词），使文章意思完整、正确。 Zheng ...
