以i开头的词汇
ice [ais] n. 冰，冰块 v. 冰镇
break the ice 打破僵局
ice age [地]冰河时代, 冰川期
ice crystal 冰晶
ice water (用作饮料的)冰水
e.g.ice is water in a solid state. 固体状态
idea [ai'diə] n. 想法（thought），主意（opinion, plan），概念（concept， conception， notion）
have no idea of ... 对...一点儿也不知道
force one’s ideas on sb. 迫使某人接受自己的意见
e.g. you have no idea how worried i was.
impact ['impækt] n.影响(effect, influence)，碰撞(hit, bump)
have an impact on... 对...有影响
e.g. she had no impact on her advice.
imply [im'plai] vt. 暗示(hint, suggest)
e.g. his silence沉默 implied agreement.
importance [im'pɔ:təns] n. 重要(性)(significance)，重大
attach importance to ... 重视...
e.g. quality质量 is of first importance.
important [im'pɔ:tənt] adj 1重要的，重大的，2有权力的，有地位的
impression [im'preʃən] n. 印象(effect, influence, impact)
e.g. what's your impression on him?
improve [im'pru:v] v. 改善(amend, polish up, enhance, make better)，改进(get better, develop, progress)
improve on/upon... 对...加以改进
improve price 提高价格
improve the opportunity 利用[抓住]机会
e.g. we'll try our best尽最大努力 to improve.
improvement[im'pru:vmənt] n. 改进, 进步(advance, progress, development)
make improvement in... 在...方面取得进步
e.g. there is need for improvement in your handwriting.书法
incident ['insidənt] n. 事件(affair, event, matter, occurrence, accident)
e.g. this incident set me thinking.
include [in'klu:d] vt.包括(comprise, involve)，包含(contain, cover)
e.g. please include me in the list.名单
income ['in,kʌm] n. 收入，收益(earnings)
income tax n. 所得税
e.g. he needs a high income to support 支持such a large family.
increase [in'kri:s] v.增加(add to, enhance, gain)，加大 n. 增加，增大
on the increase 正在增加
an increase in ... 在...方面增加
e.g. divorce离婚 is on the increase.
independence[,indi'pendəns] n. 独立, 自主
independence day 美国独立日(7月4日)
e.g. their independence was a sham.[ʃæm] 欺骗
independent [,indi'pendənt] adj. 独立自主的，不依赖...的
be independent of... 与...无关，不依赖...
an independent country 独立国
e.g. she is so independent that she refused all pecuniary金钱上 aid.
index ['indeks] n.1 索引2(p1.)指数，3标志(sign, symbol)，指标 v 把---编进索引
index of crime [美]罪案指数
index finger 食指
e.g.the book is not well indexed.