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英语所有单词的短语sb,sth

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/10 07:19:46
英语所有单词的短语sb,sth
sb,sth.和n,adv,以及所有词性的应用,特殊的也列出来,越多越好!
1.because,since,for
(1)because是从属连词,意为“因为”,表示造成某种情况的直接原因,语气最强,常用来回答why的提问.
-Why didn't you come to my birthday party?你为什么没来参加我的生日聚会?
-because I was too busy.因为我太忙了.(2)since,as往往表示众所周知的原因,常译为“既然,由于”.since从句通常位于主句之前,其语气比as稍强;as 引导的从句位于主句前后均可.
Since you come,wait for more times please.既然来了,就多等一会吧.
As he has no car,he can't there easily.由于他没车,所以不能顺利到达那里.(3)for 是并列连词,语气最弱,只对前面的分句加以解释或表示推断的原因,并多用于书面语中.for所连接的分句只能用于句尾,前面用逗号与另一分句隔开.
The days is very short,for it is now December.白天很短,因为已经十二月了.2.whether,if
用作从属连词时,whether和if都意为“是否”,一般情况下,它们都可以互换,口语中常用if,但在以下情况下,只能用whether.
(1)引导主语从句置于句首时
Whether it is true remains a question.它是真是假还是个问题.(2)引导表语从句时
The question is whether it will rain.问题是会不会下雨.(3)引导同位语从句时
There is a doubt he is fit for the job.他是否胜任这个工作还是个疑问.(4)与or not 连用时
Let me know whether or not you can come.请让我知道你是否能来.(5)与动词不定式连用时
I couldn't decide whether to do or not.我不能决定是否做那事.(6)引导介词的宾语从句时
There has been no news about whether they have finished their work.仍然没有他们是否完工的消息.3.when,while ,as
when ,while,as作从属连词,都引导时间状语从句,表示主句动作与从句动作同时发生
(1)when引导的从句可以用延续性动词,但也可以用短暂性动词,而while,as引导的从句只能用延续性动词.
When you knocked at the door,I was having a bath.你敲门时我正在洗澡.
It began to rain while we were walking in the park.我们在公园散步时,天开始下雨了.
The students took notes as they listened.学生们边听课边做笔记.(2)while 和as引导的从句的谓语动作经常与主句谓语动作同时发生,而when引导的从句的谓语动作可以发生在
主句的动作之前,之后,也可以同时发生
When/While/As we were dancing,a stranger came in.我们正跳舞时,一个陌生人走进来了.
When I got to the station,the train had left.我赶到车站时,火车已经开走了.
When he had finished his homework,he took a short rest.写完作业后,他休息了一会.(3)强调主,从句动作同时进行时,从句的时间概念淡化,而主要表示主句动作发生的背景或条件时只能用as.
As years go by,China is getting stronger and richer.随着时间一年年过去,中国变得越来越富强.
As the sun rose,the fog disappeared.太阳一出来,雾随之消散.考试热点——考查连词的用法
1.Tom was about to close the window _____his attention was caught by a bird.(2010.全国)
A.when B.if C.and D.till
2.-I wonder how much you charge for your services.
-The first two are free____the thirs costs $30.(2009.安徽)
A.while B.until C.when D.before
3.John thinks it won't be long ____he is ready for his new job.(2010.安徽)
A.when B.after C.before D.since KEYS
1.A
【解】be about to do sth when..."正要做某事时……”,为固定结构,when在此用作并列连词.if“如果”引导条件状语从句;and 连接顺接关系的并列句;till“直到”引导时间状语从句.
2.A
【解】while 在此表示对比意义,符合题意.until“直到”;when“当……时候”;before“在……之前”.
3.A
【解】"It will not be +时间段+before..."表示 “用不了多长时间就……”,是固定句式.when“当……时候”;after“在……之后”;since“自从……”,常用于“It is /has been+时间段+since...”句式.
1.看中文写英文
暂时的_____ 当代的_______ 体贴________ 合同________
2.翻译句子
初来乍到,应该学会适应环境.
One should ____________________ when he moves to a new place.
她太挑剔了,总是找别人毛病.
She is picky and always ___________ everyone.