Unit 4一、 语音1. front A. stone B. wonder C. movie D. prove2. anxious A. branch B. conclusion C. dangerous D. tongue3. breathe A. breath B. deaf C. increase D. pleasure4. achieve A. research B. chemist C. technique D. stomach5. silver A. silent B. finally C. online D. internet二、 熟读课文1. Many children watch too much TV. Parents and teachers are _ this.A. worry about B. worried about C. worry at D. worried at 2. Both TV and the Internet are certainly great
