Step 4 掌握词汇的构成可以让我们学一会二，一石二鸟哦。

如何运用后缀

less 表示否定概念 care ->  careless

ful 表示有、充满了 helpful->  careful

ly: 形容词+ ly = 副词，名词+ly = 形容词 daily

ic , pic : energetic 精力充沛的

ish: childish womanish

 Step 4 学英语就必须勤学苦练，学而不练，事倍功半，下面就做几个练习吧。新概念英语第二册听力下载

Exercise

i. Supply the missing words

1  You won't feel any pain. The operation is completely      .

2  I admired the beauty of the countryside. The countryside is so       .

3 I visit my mother every day. My mother expects       visits.

4  Don't behave like a child. Don't be so       .

5  She's a wonderful athlete. That explains why she's so       .

ii.choice questions

1. She had to _________ her umbrella from the Lost Property Office.

a . ask          b. claim                c. want

2. The child was so hungry that he swallowed the food without ____ it well.

      a. chewing    b. swallowing       c. biting

3. To his ______,he was taken to the police station for further questioning.

      a. dissatisfaction  b. disadvantage          c. dismay

4. John runs a furniture business. He ____ the business.

      a. is in charge of    b. is in the charge of   c. charges   d. bears the charges of

5. The remains were _____ to the Mutulated Ladies.

      a. conveyed    b. dispatched    c. carried    d. fetched

6. People can get their money back _____ there is something to identify.

      a. depending    b. provided    c. supposed    d. allowing

7 .In_____,she turned to her mother for help.

     a. desperate     b. hopeless     c. despair