题文

Read and write.

例: Sarah is 15 years old. Amy is 14 years old.             Sarah is one year older than Amy. Amy is one year younger than Sarah. 1. John is 159 cm tall. Mike is 162cm tall.                                                                                  2. Liu Yun is 12 years old. Chen Jie  is 14 years old.                                                                                   3. Lucy is 42 kg and Mary is 43 kg.                                                                                  4. I am 40 kg and my brother is 38 kg.

题型：句型转换  难度：中档

答案

1. John is three cm shorter than Mike. Mike is three cm taller than John. 2. Liu Yun is two younger than Chen Jie. Chen Jie is two year older than Liu Yun. 3. Lucy is one kg lighter than Mary. Mary is one kg heavier than Lucy. 4. I am two kg heavier than my brother. My brother is two kg lighter than me.

据专家权威分析，试题“Read and write.例: Sarah is 15 years old. Amy is 14 years ..”主要考查你对  规则形容词的比较级  等考点的理解。关于这些考点的“档案”如下：

规则形容词的比较级

考点名称：规则形容词的比较级

• 当我们需要对事物作出比较时，需要用到比较级。
  比较级的句子结构通常是：
  什么 + 动词be (am , is , are ) + 形容词比较级 + than（比）+ 什么 ,意为：“比……更……”。 如：
  I’m taller and heavier than you. （我比你更高和更重。）
  An elephant is bigger than a tiger. （一只大象比一只老虎更大。）

• 形容词的比较级变化规则:
  形容词的比较级是在形容词的基础上变化而来的，规则形容词的比较级变化规则是：
  ① 一般的直接在词尾加er ，如 tall - taller , strong - stronger ,
  ② 以e结尾的，直接加r ，如 fine – finer ,
  ③ 以辅音字母加y结尾的，先改y为i再加er，如funny - funnier
  ④ 双写最后的字母再加er，如big – bigger, thin – thinner ,
  hot – hotter
  下表举例列举一些形容词的原级和比较级。
  

  原级	比较级
  long	longer
  large	larger
  dry	drier
  big	bigger
  hot	hotter