复习资料：山东自考英语二常考单词解析（五）

山东自考网小编为大家整理了山东自考英语二常考单词解析复习资料，考生最好能抽出时间来，每天背几个单词，等到考试的时候就不会慌张。

1、构词前缀de-

1）向下，降低，减少

depopulation n.人口减少

depress v.压抑

devalue v.贬值

2）去掉，取消

decode v.破译

decolor v.去色

defame v.诽谤

deforest v.砍伐森林

defrost v.除霜

3）否定，非，相反

decompose v.分解

destruction n.破坏

4）离开

derail v.使（火车）脱轨

detrain v.下火车

5）使…加强

declaim v.演讲

declare v.声明，宣布

depict v.描绘

design v.设计

illegal adj.not allowed by the law不合法的；非法的；违法的

eg:It is illegal to intercept radio messages.窃听无线电信息是违法的。

衍生：

legal adj.allowed by the law合法的

eg:It is legal to use marijuana in the Netherlands.在荷兰吸食大麻是合法的。

2、构词前缀il-不，无（放在同辅音词根前）

illegal adj.非法的

illegible adj.难读的

illimitable adj.无限的

illiterate adj.不识字的

illogical adj.不合逻辑的

3、immigrant n.a person who has come to live permanently in a country that is not their own（外来）移民；外侨

eg:He admitted that he was an illegal immigrant.他承认他是非法移民。

衍生：

immigrate v.to come into a country in order to live there permanently移入,移居入境

eg:His father and mother immigrated when he was two.他两岁的时候，他父母就移民了。

immigration n.moving of people from one country to come to live in another country permanently移民

eg:restrictions on immigration对外来移民的限制

immigration officials（处理外来移民的）移民局官员

immigration controls（对外来的）移民管制

4构词:im-前缀（进入）+migr词根（迁徙）

im-进入

import v/n.进口

imprison v.监禁

implant v.注入，灌输

migr词根：迁徙

migrate v.迁徙

migrant n.候鸟，迁移者

emigrate v.移民国外

immigrate v.移民入境