.M1U1Welcome to the unit1. affect one another彼此影响(同义:influence/have an effect on/have an influence on)2. hold your nose 屏住呼吸3. the sense of hearing/taste听觉/味觉4. letters in raised dots突起的点表示的字母5. sb with hearing problems 有听力问题的人6. sign language 肢体语言The fact that he didnt say no immediately is a good sign.迹象a traffic sign 交通标志7. confuse sb 使人疑惑(同义:puzzle sb)8. use A more than B用。比用。更多(同义:compared with B, we use A more)9. only need to do只需要。10. know of 知道11. m