1.illustrate v.舉例說明(to demonstrate)

詞根記憶：iI（加強）+lustr(清晰)+ate--為使…更清晰--舉例說明

例：A specific example is presented to illustrate the main elements of the argument.

派生詞：illustration(n．說明；插圖)

2.illustration n．說明(the action of illustrating)；例證：圖解（sth. that serves to illustrate）

詞根記憶：來自illustrate(譏舉例：闡明)

例：In her book illustrations, which she carefully coordinated with her narratives, Beatrix Potter capitalized on her keen observation and love of the natural world.

3.imbalance n.不平衡(a lack of balance or state of disequilibrium)；不安定(a lack of stability)

詞根記憶：im(不)+balance(平衡)-不平衡

例：It is not likely that the competitive imbalance that now exists between Japan and all major industrial nations will be redressed during the foreseeable future.

派生詞：imbalanced(a．不平衡的：比例失調的)

4.imitate v.模仿(to mimic)；仿造(to reproduce)

詞根記憶：im(使成…)+it+ate --使成…樣子--模仿，仿造

例：Anne imitated the famous artist's st3tle in her own paintings.

派生詞：imitation(n．模仿；仿制品)：imitative(a．模仿的)

5.imitative a．模仿的( inclined to imitate)；仿制的(imitating sth. superior)

詞根記憶：來自imitate(礦模仿：仿造)

例：He's an imitative artist, who does very little original stuff.

同根詞：imitator(n．模仿者)

6.immigration n.外來移民：移居(to come into a country of which one is not a native for permanent residence)

詞根記憶：來自immigrate(v.移入，移居)

例：This immigration has continued and even increased.

同根詞：emigrate(v.移居國外)

7.immobilize v.使固定，使不動(to make immobile)；使停止流通(to withhold( money or capital) from circulation)

詞根記憶：im(不)+mobil(運動的)+ize(使…)--使不動

例：Putting a collar on a rhinoceros involves immatn7izing the animal by shooting it with a tranquilizer dart.

8.immune a．免疫的(having resistance to a disease)

例：immune system免疫系統(tǒng)

派生詞：immunity(n.免疫力，免疫性)；immunology(n.免疫學)

9.impact n.碰撞(strike)：影響（a significant or major effect）

詞根記憶：im(加以…)+pact(壓)--加以壓力--碰撞

例：It is believed that the extinction of the dinosaurs was caused by the asteroid impact on earth.//Researchers analyzed the negative economic impact of downsizing on firms.