外研版九年级英语下册《You must be careful of falling stones》Rules and suggestions PPT课件(第2课时)，共20页。get lost意为“迷路”，其同义短语为lose one's way。eg：It's very easy to get lost in the forest.在森林里很容易迷路。You mustn't go off on your own.你们不许独自离开。①go off在此处意为“离开”。eg：She went off to get a drink.她离开去拿饮料了。【拓展】go off还意为“爆炸；响起；熄灭；变质；变坏”。eg：I woke up when my alarm clock went off.闹钟一响我就醒了。Milk goes off quickly in hot weather.牛奶在热天很快就会变坏。②on your own意为“独自；单独”；相当于all by yourself或alone。on one's own意为“独自地；独立地”，其中one's要随主语的人称变化而变化。I'll lead the way.我来带路。lead the way意为“带路”。eg：I don't know the way to the library.Who will lead the way？我不知道去图书馆的路，谁来带路？【拓展】lead用作及物动词时，有如下含义：①引导；领(路)eg：She led me into the living room.她带我进入客厅。②领导；指挥；率领eg：They will let the young man lead the basketball team.他们将会让这位年轻人领导这个篮球队。③过(某种生活)eg：We lead a very quiet life.我们过着非常安静的生活。④造成；导致eg：What led him to break the rules？是什么导致他违反规定？重点词组归纳at noon在下午in one go一口气；一下子be careful of小心；注意begin with以······开始get up to到达；达到... ... ...关键词：You must be careful of falling stones PPT课件免费下载，.PPT格式； 本作品中主体文字及图片可替换修改，文字修改可直接点击文本框进行编辑，图片更改可选中图片后单击鼠标右键选择更换图片，也可根据自身需求增加和删除作品中的内容，源文件无水印。如认为该内容涉嫌侵权，可通过邮件提出书面通知，我们将及时处理。