Unit 3 Is this your pencil?习题一、判断下列单词画线部分读音是否相同, 用或 X 表示。( )1. book black( )2. brown cap ( )3. robot big ( )4. dog doll 2、读句子,选择字母 b、d 或 p 填空, 注意大小写形式。1. This is a _ie. Its for my _rother. 2. Ha_ _y _irth_ay, Mike! 3. This _ig _oll is for you, Helen. 4. Look at the re_ _ook. Its great. 5. What a_out a hot _og? 6. Sam has a _all and two ru_ _ers.三、找出不同类的单词,把序号写在提前的括号内。( )1. A. door B. window C. book ( )2. A. stand B. up C. sit ( )3. A. blackboard B. open C. close ( )4. A. rubber B. robot C. ball