1931.into(介)到……之内
It was raining, so they went into the house.
下雨了，所以他们走进了房子里。

1932.introduce(动)介绍；提出
His unfortunate remarks introduced a note of bitterness into the conversation.
他那些不适当的话语给这次交谈带来了几分敌意。

1933.introduction(名)介绍；采用
The introduction of new advanced techniques in the factory is under discussion today.
今天的议题是关于工厂采用新的先进技木的问题。

1934.invent(动)发明、创造
He invented a new type of stethoscope.
他发明了一种新型听诊器。

1935.invention(名)发明；创造力
An author must have invention to think up new ideas for stories.
作家必须具有为故事构思新意的创造力。

1936.inventor(名)发明者
The machine takes its name from its inventor.
这机器的名字来自其发明者。

1937.invest(动)投资
短语invest in
The state has planned to invest two millions in the dam.
国家计划投资两百万元修建这个大坝。

1938.invitation(名)邀请
She received an invitation to the party.
她接到参加聚会的邀请。

1939.invite(动)邀请
He invited several of his friends to the show.
他邀请了几个朋友去看表演。

1940.inviting(形)吸引人的
The river was inviting. I suggested a swim.
河水很吸引人，我建议游一会儿泳。

1941.iron(名)铁；烫斗
The door is made of iron.
这扇门是铁做的。

1942.island(名)岛
The island is of strategic importance.
这个岛屿具嘴战略意义。

1943.issues(名)问题
They have published a lot of new books on international issues.
他们已经出版了很多论述国际问题的新书。

1944.Italian(名)意大利文(形)意大利的
I需大写
(名):We need an Italian interpreter.
我们需要一位意大利语翻译。
(形):I like to eat Italian food.
我喜欢吃意大利食物。

1945.jacket(名)夹克
Can I change this sports jacket, please?
我可以退换这件夹克吗？

1946.jam(动)塞满(名)果酱；阻塞
(动):The crowds jammed the streets, and no cars could pass.
街上挤满了人群，汽车都无法通行。
(名):I am in a jam now.
我现在被困在车阵中。

1947.January(名)一月
J需大写
January is always a slack period.
一月份总是淡季。

1948.Japan(名)日本
J须大写
Earthquakes occur frequently in Japer.
日本时常发生地震。

1949.Japanese(形)日本人的(名)日语、日本人
(形):Many Japanese people are workaholics.
许多日本人都是工作狂。
(名):I don't know how to speak Japanese.
我不知道怎么说日语。

1950.jaw(名)颚、下巴
A strong square jaw is a sign of firm character.
坚实方正的下巴是性格坚强的标志。

1951.Jazz(名)爵士乐
Jazz has never really turned me on.
我从未对爵士乐真正产生过兴趣。

1952.Jeans(名)牛仔裤
惯用复数
Jeans are popular among the youth nowadays.
现在的年轻人很喜爱牛仔裤。

1953.jeep(名)吉普车
Travelling by jeep, we visited cities and state farms.
我们坐吉普车拜访了一些城市和国营农场。

1954.jelly(名)果冻；果酱
不可数
As for food, I'd like some buttered toast, No jelly.
至于主食，我点一些加奶油的烤面包，不放果酱。

1955.Jesus(名)耶稣
J需大写
Jesus died on the cross.
耶稣死在十字架上。

1956.job(名)工作
I'm looking for a new job.
我正在找一份新工作。

1957.jog(动)慢跑；轻撞
Many old people go jogging in the park in the early morning.
大清早许多老年人到公园去慢跑。

1958.join(动)参加
He never joined the usual sports of the boys.
他从不参加男孩子们常做的体育运动。

1959.joint(形)联合的(名)关节
(形):We have opened a joint account at the bank.
我们在银行开了一个共有的账户。
(名):My mom suffers from arthritis in her leg joints.
我妈有关节炎。

1960.joke(名)(动)玩笑
(名):A joke never gains an enemy but often loses a friend.
戏谑永远不能化敌为友，反而常常失去朋友。
(动):I am joking.
我开玩笑的。

1961.jolly(形)愉快的
In jolly spirits, they urged the donkeys on.
他们愉快地赶着驴子往前走。

1962.joy(名)喜悦、欢乐
To her parents' joy, she won the first prize for her virgin story.
使她父母高兴的是，她的处女作得了一等奖。