I. 1-6 CACAAA II. 1. enough 2. dustbin 3. cause 4. necessary 5. energy III. 1. is bad for 2. in thedaytime 3. walk on 4. to give up smoking 5.throwabout IV. 1. Wash 2. Don’t stay
二、 1. Have you ever swum 2. he hasn’t visited 3. hasn’t won any prizes 4. I’ve alwayswanted to help you 5. has already invite us to travel 三、 1. It’s over 550metres.
III. 1. when she grows up 2. tookpart in 3. one of the best 5. broke the record IV. like , favorite, be , up , is 三十期 I、1.pronounces2.slowly 3.spoken 4.mistake 5.solution 6.impressed
重庆周林频谱仪
