单词+词组+句型，20天轻松搞定3500词（I、J、K）
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1. idea n. 想法，主意，概念
have some/no idea + 从句/of… 知道/不知道......
I have no idea why she left.
I have no idea of his address.
2. identity n. 身份，一致
The police are trying to discover the identity of the killer.
The thief used a false identity.
identity card=ID card 身份证
3. ill adj.生病的，坏的，邪恶的
ill与sick的区别：
ill当生病讲时只做表语，sick当生病讲时可做表语也可作定语。
He was ill/sick.
a sick mother
have a bad/an ill effect on 对...…影响不好
ill adv. 不利地；恶劣地
speak/think ill of sb. 说某人的坏话
4. illegal adj. 非法的，违法的
It is illegal to drive through a red light.
illegally adv.
He entered the country illegally.
5. imagine v.想象
imagine sth./doing sth.
I can’t imagine life without the children now.
I can’t imagine his becoming a teacher.
6. immediately adv. 立刻，立即，直接地
He answered almost immediately.
Turn right immediately after the church.
immediately conj. 一......就......
Immediately he had gone,I remembered his name.他一走，我就想起了他的名字。
immediate adj. 立刻的，立即的，直接的
an immediate reaction/response 直接的反应
take immediate action 立即采取行动
7. import n./v.进口，输入
the import of electrical goods 电器的进口
All the meat is imported from France.
8. impression n. 印象
① get a good/bad impression of sb 对某人印象好/坏
a general/an overall impression 总体印象
② My words made no impression on her. 我的话没有给她留下印象。
His trip to India makes a strong impression on him.
③ be under the impression that 觉得，认为
I was under the impression that the work had already been completed.
9. impress v.给......留下印象
impress sb with sth/sb 使某人对...留下印象
He impressed us with his sincerity（真诚）.
impress sth on/upon sb 使某人对某事印象深刻；使某人铭记......
He impressed on us the need for immediate action.
10. in prep.在......之内，时髦的，从事，按照，在......方面
in a word 话说
in all 总共
in modern times
be measured in tons 用吨来衡量
in that… 因为......
She was lucky in that she had friends to help her .
in the eighteenth century
in the1990s 在20世纪90年代
in one’s twenties 在某人二十几岁的时候
in pencil/ English/ ink 用铅笔/英语/墨水
pay sth in cash 用现金支付
The wall is 3meters in height/high.
The rope（绳子） is 3 meters in length/long.
11. include v. 包含，包括
Everyone laughed, including me. (me included.)
12. increase v./n. 增加
increase to/by 增加到/了
Great demands lead to a large increase in supply.
13. increasingly adv. 越来越多地，不断增加地
increasingly difficult/important/popular 越来越难/重要/流行
14. indicate v. 表明，暗示，指出
A red sky at night often indicated fine weather the next day.
In his letter, he indicated to us that he was willing to cooperate（合作）.
indication n.
indication of sth/doing sth
They gave no indication of how the work should be done. 他没有指出这项工作该如何做。
15. industry n. 工业，产业
industrial adj. 工业的，产业的
heavy/light industry
16. influence n./v. 影响
have a strong influence on/upon sb/sth
have influence over sb/sth 有左右某人的能力
His parents no longer have any influence over her.
under the influence of sb/sth 在......的影响下
He committed the crime under the influence of the drugs. 在毒品的影响下，他犯了罪。
Those friends are a bad influence on her.
His writings have influenced the lives of millions.
17. inform v.告知，通知
inform sb. of/that 告知某人......
We regret to inform you that your application has been rejected.
keep sb. informed of 使某人得知......
18. injure v.伤害，损害
He injured his knee playing football. 踢足球的时候，他伤了他的膝盖。
This could seriously injure the company’s reputation（名誉，荣誉）.
injury n. 伤害，损害；伤口
There were no injuries in the crash（坠毁）.
The players are out of the team because of injury. 这些运动员因为受伤退出了球队。
19. insert v. 插入，嵌入
insert sth in/into/between sth
They insert a tube（管子） in his mouth to help him breathe.
20. insist v.坚持
The man insisted that he hadn’t stolen anything and that he (should) be set free.
insist on doing sth. 坚持做某事
21. inspect v. 检查，视察
inspection n. 检查，视察
inspector n. 检查员，视察员
The teacher walked around inspecting their work.
22. instant n.瞬间，立刻，片刻 adj.立刻的 conj. 一......就......
instantly adv. 立即地，立刻地
The show was an instant success.
instant coffee/noodles 速溶咖啡/方便面
I will be back in an instant.
At the very instant, the door opened.
I recognized her the instant I saw her. 我一看到她就认出了她。
23. instead adv. 代替，相反
Lee was ill, so I went instead.
He didn’t reply. Instead, he left.
instead of 代替，而不是
Now I can walk to work instead of going by car.
24. instruct v.指导，教授，命令
instruct sb to do
She arrived at 10 o’ clock as instructed.
The letter instructed him to report to headquarters（总部）immediately.
instruction n.指导，教授，命令
follow one’s instructions
carry out/ignore one’s instructs 执行/忽视某人的指导/命令
25. insure vt. 确保，给......保险
Have you insured the contents of your home?
26. intend v.想要，打算
intend (sb.)to do
I intend to spend the night there.
intend that
It is intended that these meetings will become a regular event.
be intended for sb./sth 专门为......准备/设计
The book, intended for children aged 5-7,sells well.
27. intention n. 意图，目的，意向
intention of doing sth/to do sth
I have no intention of going to the wedding.
I had every intention of paying her back what I owe her.
She is full of good intentions.
He left England with the intention of traveling in Africa.
28. interest n.兴趣，利息，利益 v. 使......感兴趣
interest sb. 使某人感兴趣
I bought the book that interested me most.
show/have/feel/express (an) interest in…
lose interest in…
I watched the game with interest.
利益(C) 常用复数形式 protect customers’ interests
a place of interest/places of interest 名胜古迹
29. interpreter n. 口译者，解释者
interpret v. 口译，解释
interpret the poem
interpret sth as sth
I didn’t know whether to interpret her silence as acceptance or refusal.
interpret for sb
30. interview v./n. 面试，采访
a television/newspaper/radio interview
Which post are you being interviewed for?
If you don’t interview well ,you are unlikely to get the job.
interviewee n. 被采访者，被面试者
interviewer n. 采访者，面试者
31. introduce v. 介绍，引进
introduction n.
introduce sb. to sb./oneself
introduce sb. to sth.
It was she who first introduced me to the pleasures of sailing.
introduce new technology
an introduction to English grammar
32. jam n. 堵塞，困境，果酱
traffic jam 交通堵塞
33. Japanese n. 日本人；日语 adj. 日本（人）的；日语的
34. join v. 加入，参加，连接
join the party/army
join sb. in sth./doing sth.
join in the game
join hands with sb.
join A to B./join A and B
The island is joined to the mainland by a bridge.
35. joke n. 玩笑，笑话 v.开玩笑
play a joke on sb. 开某人的玩笑
have/make a joke with sb. 和某人开玩笑
I was only joking.
我只不过是在开玩笑。
36. joy n. 快乐，高兴
(much) to one’s joy
light up with joy 充满快乐
joyful adj. 欢喜的；令人高兴的
37. judge n. 裁判；法官 v. 判断，审判
The judge sentenced him to five years in prison.
1Don’t judge a book by its cover. 不要以貌取人
judge by/from 通过......来判断
Judging by his letter, they are having a wonderful time.
judgement n. 判决
pass judgement on sb sth 通过对…...的判决
38. keep v.
keep (on)doing 一直做…...
Why do you keep laughing all the time? 你为什么一直在笑?
He is always keeping (on ) asking me the same question.
keep a secret 保守秘密
keep one’s word 遵守诺言
keep a record 保持记录
keep sb/sth from doing 阻止某人做某事
keep the door open
keep her waiting
keep sb. informed of…
keep calm/healthy &
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keep up with 跟上
keep up (天气)持续不变
The rain kept up all afternoon.
keep back 隐瞒；阻止；留下
keep sth back from sb. 向某人隐瞒
keep away from 远离
keep off 不接触
Keep off grass!
39. key n. 答案，关键，琴键
the key to success 成功的关键
40. kind adj . 善良的，友好的 n.种类
be kind to sb. 对某人友好的
a kind of
all kinds of
kind of 稍微，有点儿
That made me feel kind of stupid.
41. knee n.膝盖
get down on one’s knees 跪着
42. knock v./n. 敲，批评
knock at the door 敲门
knock around/about 漫游/虐待
knock down 撞到/拆掉
knock over 撞翻
43. know v. 认识；知道；了解
know of/about 知道，获悉，了解
be known for/as
get to know sb. 逐渐了解...…
44. knowledge n.知识
Knowledge is power.
have a good knowledge of… 很好的了解/掌握......
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