题目

听一听，我会圈。（听录音，圈出你所听到的单词）1. Here’s your (cake present). 2. I’m (six nine). 3. It’s a (pen pencil). 4. What’s (this it)? 5. Happy birthday, (Jim Kim)! 答案：【答案】1. present 2. nine 3. pen 4. this 5. Jim【解析】1. Here’s your present.2. I’m nine. 3. It’s a pen. 4. What’s this? 5. Happy birthday, Jim!12．某小组原来女生占全组的$\frac{1}{2}$，后来走了2名女生，现在女生占全组人数的$\frac{1}{3}$，设原来该组共有x名同学，可列方程为：$\frac{1}{2}$x-2=$\frac{1}{3}$（x-2）．