高考总复习：高二重点词汇二
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知识讲解
thisafternoon重点单词：
assist
【点拨】assist vi. & vt. & n．帮助；援助；协助
assist sb. with sth. 帮助某人做某事
assist at/in sth. 参加某事物
We all assisted in mending the roof. 我们都帮助修理屋顶。
assist sb. in doing sth. /to do sth. 情态动词帮助某人做某事
We asked him to assist us in designing a new bridge. 我们请他帮助我们设计一座新桥。
The students assisted the professor in doing the experiment. 学生们协助教授做实验。
with the assistance of 在……的帮助下
He can walk only with the assistance of crutches. 他只能靠一副拐杖走路。
come to sb.’s assistance 帮助某人
Despite his cries, no one came to his assistance. 尽管他喊叫，却没有人来帮助他。
【拓展】
assistance n．援助；帮助；补助
assistant n．助手；助理 adj.辅助的；助理的
concentrate
【点拨】concentrate vt. 集中；全神贯注
concentrate (sth.) on (doing) sth. 集中于；专心于……
be concentrated in/on/upon sth. 集中于，专心于
He concentrated on the study of English. 他把重点放在英语学习上。
Our population is concentrated in the big cities. 我国人口集中在大城市里。
concentrate one’s attention/efforts/ 把注意力温度单位/努力/思想集中到……
We should concentrate all our effort on improving education. 我们应该致力于改进教育工作。
concentration n. 专心；专注
【拓展】下列短语和concentrate近义，短语中in, to 都是介词，后接名词或动名词。
focus/fix one’s 集中注意力于……
put one’s mind/heart in (into) 专心于……
be 一心一意于……
apply onelf/one’s 专心于……
pay attention to 专心，注意……
inform
【点拨】inform vt. 告知；通知
多题多卷inform sb. of/about sth. 告知某人某事
Plea inform us of any change of address as soon as possible. 地址如有变更请尽快通知我们。
inform sb. (that)... 通知某人
We regret to inform you that your application has been rejected.
汉英翻译器我们很遗憾地通知你，你的申请未被接受。
keep sb. informed 使某人随时了解最新情况
Plea keep me fully informed of any developments. 事态如有发展，请向我提供详情。
【拓展】
informed adj. 了解情况的；见识广的
ca
每天学点说话技巧【点拨】can t stop loveca n. 情况；病例；案例
in 假使……，万一……
英语发音词典下载
in ca 以防，万一
in any ca 无论如何，总之
in this/that ca 如果这样/那样的话，在这种/那种情况下
in no ca 决不
in the ca of 就……来说
as is often the ca 这是常有的事
as the ca may/might be 看情况，视情况而定
In some cas people have had to wait veral weeks for an appointment.
在某些情况下，人们必须等上几周才能得到约见。
The ca will be heard next week. 此案下周审理。
In ca of fire, call 119. 万一发生火灾，就打119。
You’d better take the keys in ca I’m out. 你最好带上钥匙，以防我不在家。
accu
【点拨】accu vt. 控告；谴责
accu sb. of sth.＝charge sb. with sth. 因某事而控告/谴责某人
My teacher is always accusing me of carelessness. 我的老师总是指责我粗枝大叶。
accu sb. as... 指控某人为……
Mary was accud as an accomplice. 玛丽被指控为同谋犯。
accu sb. for sth. 为某事指责某人
Man often accus nature for his own misfortunes. 人类常把自身的不幸归罪于天。
【拓展】与 accu sb. of sth.结构相似的短语有：
rob sb. of sth. 抢劫某人的某物
warn sb. of sth. 警告某人某事
rid sb. of sth. 使某人摆脱某事
remind sb. of sth. 提醒某人某物
inform sb. of sth. 通知某人某事
demand【词汇 第二讲（unit4-5）】■
【点拨】If you demand something such as information or action, you ask for it in a very forceful way. 动漫的英文如果“demand”信息或行动之类的事情，那就是用一种强有力的方式要求得到它。
Mr. Boom last night demanded an immediate explanation from the government.
昨晚Boom先生要求来自政府的迅速的解释。
Korea demanded that UN nd a delegation to the peace talks.
朝鲜要求联合国派一个代表团进行和平谈判。
The hijackers are demanding to speak to reprentatives of both governments.
劫机者强烈要求跟两边的政府代表谈话。
A demand is a firm request for something. “demand”做名词意为对某事的强烈需求。
They consistently rejected the demand to remove US troops.
他们强硬地拒绝了撤走美国军队的要求。
If someone or something is in demand or in great demand, they are very popular and a lot of people want them.
如果某人或某物“in (great) demand”，说明他们非常受欢迎，很多人需要他们。groove
He was much in demand as a lecturer in the US, as well as at universities all over Europe.
作为一个演讲者他非常受欢迎，无论是在美国还是在欧洲的大学里。
approve【词汇 第二讲（unit4-5）】■
【点拨】If you approve of an action, event, or suggestion, you like it or are plead about it.
如果“approve of”某个行为、事件或者建议，意思是喜欢它或对它满意。
Not everyone approves of the festival. 不是每个人都喜欢这个节日。
I approved of the proposal. 我赞同这个建议。
If you approve of someone or something, you like and admire them.
如果“approve of”某人或事物，意思是喜欢或者崇拜他们。
You've never approved of Henry, have you? 你从来没有喜欢过Henry，是吗？
I didn't approve of his manner. 我不太喜欢他的方法。
If someone in a position of authority approves a plan or idea, they formally agree to it and say that it can happen. 如果处于权威位置的人“approve”一个计划或者主意，他们正式地表示同意或者允许其发生。
The Russian Parliament has approved a program of radical economic reforms.
