人教版高中英语必修一《Natural disasters》SectionB PPT课件，共34页。高 频 词 语1. supply n. 供应(量)；补给；[pl.]补给品　vt.供应；供给【典例促记】⊙The supplies which were provided to the disaster area were collected from around the country.(P52)提供给灾区的补给品来自全国各地。⊙Schools provide/supply us with the knowledge we need，and families offer us food and clothes. Then what can we provide for society?学校为我们提供我们所需的知识，家人为我们提供衣食。那么我们能为社会提供什么呢？⊙These goods are in short supply.这些货物供应不足。2. take turns to do sth.轮流做某事【典例促记】⊙Take turns to ask each other about the pictures.(P52)轮流问对方图画的内容。⊙It’s Tom’s turn to be on duty tonight.今天晚上轮到汤姆值班了。⊙This week I am to do the housework in my turn.这一周该我做家务了。3. survive vi. 生存；存活　vt. 幸存；艰难度过【典例促记】⊙Fortunately, the little boy survived the air－crash.幸运的是，那个小男孩在空难中幸免于难。⊙How does the family survive on such a small monthly wage?这一家的月收入这么少，怎么维持生计？⊙The old lady has survived her twin sister by ten years.那位老妇人比她双胞胎姐妹晚去世10年。⊙The plane crashed in an area of dense jungle. There were no survivors.飞机坠落在一个丛林茂密的地区，无生还者。单元语法图解一、定义◎在主从复合句中修饰或限定主句中某一名词或代词的从句叫定语从句。它所修饰的名词或代词叫作先行词。引导定语从句的词叫作关系词，包括关系代词和关系副词。◎定语从句分为限制性定语从句和非限制性定语从句。限制性定语从句与先行词之间的关系非常密切，从句说明先行词的性质、身份、特征等状况。◎关系词的作用：连接主句和从句；指代先行词；在从句中充当句子成分。◎关系词的分类：关系代词：that、which、who、whom、whose、as；关系副词：when、where、why。二、关系代词的基本用法关系代词先行词在定语从句中所做的成分that人、物主语、宾语(作宾语时可省略)which物主语、宾语(作宾语时可省略)who人主语、宾语(作宾语时可省略)whom人宾语(作宾语时可省略)whose人、物定语as人、物主语、宾语... ... ...关键词：Natural disasters 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。