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1、高三英语知识点总结最新5篇 高三英语知识点1疑问代词概说疑问代词有who(谁，主格)，whom(谁，宾格)，whose(谁的，所有格)，what(什么)和which(哪个，哪些)等。疑问代词用于特殊疑问句中疑问代词一般都放在句首，并在句中作为某一句子成分。如：Who is going to speak to us tomorrow?明天谁来跟我们讲话?(who作主语)Who told you so?是谁告诉你的?(who作主语)Whom are you talking about ?你们在说谁?(whom作宾语，但在句首时口语常用who代替whom)Whose umbrella is this
2、 ?这是谁的伞?(whose作定语)What is that? 那是什么?(what作表语)What did he say?他说什么?(what作宾语)Which is yours，the blue pen or the redone?蓝笔和红笔哪一支是你的?(which作主语)注一关于疑问代词的各种用法，可参看77.70-77.72。注二疑问代词who，what，which等后面加单词ever，可强调语气，表达说话人的各种感情。如：What ever do you want?你到底想要什么?Who ever is she looking for ?她究竟是在找谁?注三which表示在一定范围
3、之内的选择，what则没有这种限制。如：What do you usually have for lunch?你们午饭通常吃些什么?Which do you like best?你最喜欢哪一个?Which of you comrades come from the Northeast? 你们同志们中间谁是东北人?疑问代词可以引导一个间接疑问句间接疑问句在句中可用作主语、宾语、表语等。疑问代词本身在间接疑问句中又担任一定的句子成分。如：Who will be in charge of the work is still not decided.谁将负责这项工作，现在还没有决定。(疑问代词who引
4、导一个主语从句，它本身又在从句中用作主语。)Do you know what his name is?你知道他叫什么名字吗?(疑问代词what引导一个宾语从句，而它本身又在从句中用作表语。)注一 what所引导的名词性从句(即主语从句、宾语从句、表语从句) 有时不是间接疑问句。如：What he says is quite true.他所讲的话很对。(what相当于that which。它引导一个主语从句，这个从句不是间接疑问句。)Children do what the nurse tells them to do.保育员让孩子干什么他们就做什么。(what引导一个宾语从句，这个从句也不是间
5、接疑问句。)注二 whatever，whoever，whichever等词可引导名词性从句。这些名词性从句也不是间接疑问句。whatever，whoever，whichever也可引导表示让步的状语从句。见15.65和15.72)如：They eat whatever they can find.他们找到什么就吃什么。(whatever引导一个宾语从句，并在从句中作宾语。)Ive got plenty of books 1eft.Whoever wants an extra copy can get one from me.我还剩下许多书，谁还想再要一本可来拿。(whoever引导一个主语从句
6、，并在从句中作主语。)高三英语知识点2Who / whoever, what / whatever等的用法区别一般说来，what/who等含特指意义，而whatever/whoever等含泛指意义，意为无论什么/无论谁。It is generally considered unwise to give a child _ he or she wants.A. however B. whatever C. whichever D. whenever解析：答案是B，whatever引导一个宾语从句，并且作wants的宾语。这里的 whatever不能改成what，因为题意想表达的显然是无论孩子要什
7、么就给他/她什么事不明智的，具有泛指的概念。同时要注意，这里 whatever也不能改用no matter what，因为后者只能引导状语从句。比较下例：I cant remember at the moment who has said the words. (这里的who表特定的某人)Where, when, why等连接副词引导的名词性从句Where, when, why等连接副词也可以引导名词性从句，使用的关键是：这个词必须符合句子的逻辑要求。-I drove to Zhuhai for the air show last week.-Is that _ you had a few d
8、ays off?A. why B. when C. that D. where解析：答案是A，why引导的从句作表语，同时why在从句中作原因状语。这里之所以选why，而不是when或 where等，的依据便是句子的逻辑含义，及语境。介词+who(m)引导的宾语从句与介词+ whom引导的定语从句的区别介词后面的引导词用主格还是宾格，决定于它在宾语从句中作主语还是宾语。It was a matter of _ would take the position.A. who B. whoever C. whom D. whomever解析：答案是A。这是一个含宾语从句的复合句，作介词of宾语的，是
9、后面的整个句子，而不是宾语从句的引导词，由于这里引导词在从句中作主语，所以要用主格who(作宾语时自然要用whom)。高三英语知识点3look up the dictionary汉语中的“”，说成英语通常是 look up sth in a dictionary 或 consult refer to a dictionary。如：I refer to the dictionary frequently. 我经常查阅词典。You can look the word up in the dictionary. 你可以在词典里查这个词。He often consulted a dictionary
10、when he read the book. 他读这本书时经常。I looked the word up in the dictionary to refresh my memory of its exact meaning. 我查了词典，以便弄清这个词的准确意思。I often look up the words I dont know in the dictionary or on the Internet. 我经常在字典里或网上查找我不认识的单词。“Is that the correct spelling?” “I dont knowlook it up in a dictionary.
11、” “那是正确的拼写吗?”“我不知道查查词典吧。”I didnt know what “loquacious” meant and had to look it up in a dictionary. 我不知道loquacious这个是什么意思，所以只好查了词典。有不少人认为英语习惯上不能直接说 look up the dictionary, 其实这种表达在英语中也可以用，只是比较少见而已。例如：I spend more time looking up the dictionary than reading the book. 我读这本书时的时间还多些。摘自 L. G. Alexander 编
12、新概念英语(外研社)Look up the dictionary and explain the meaning of the italicized words. 然后解释斜体词的意思。摘自张汉熙编高级英语(商务印书馆)高三英语知识点4虚拟语气在一些特殊词中的使用或含蓄条件句1.wish后的宾语从句。与现在愿望不一致，用主语十过去时，例如：I wi。hIwere you.与过去愿望不一致，用主语+had+过去分词，例如：Iwish I had visited the White House whenI was in the States与将来愿望不一致，用主语+would (could)+原形
13、。2.Its time句型：当lts tine后用that从句时应该为主i吾+should+动词原形或主语十过去时，例如：It，s time thatyou went to school.或Its time that you should go to schooL3- If only引起的感叹句相当于“How I wish+宾语从句”。(l)If only he could come.他要能来就好了。(2)If only I had known the answer.我要早知道答案就好了。4.WOuld rather，as if(though)引导的从句也需使用虚拟语气，表示过去的情况用过去完
14、成时，表示现在与将来的情况用过去时，例如：(l)Id rather you posted the letter right away.(2)She loves the children as if they were hers.5.含蓄虚拟条件句含蓄条件句是指句中没有明显的虚拟条件句，而是利用其他手段来暗示存在虚拟条件。但是这类隐含式虚拟条件句往往都可以转化为if引导的条件句。常用来表示含蓄虚拟条件的手段有：(1)介词或介词短语。如but for，but that，without,in case of, under more favorable condition等。(2)连词。如so tha
15、t, unless, in case, supposing,lest, provided(倘若)，for fear that(唯恐)，in orderthat, on condition that, if only(要是就好了)等。注意：lest, for fear that和in case引起的从句中谓语动词多用should+动词原形，但也可以不用虚拟语气，而用动词的陈述语气形式。例如：The foreign teacher spokeslowly in case we misunderstood him这位外籍教师说得很慢以免我们误解。(3)通过上下文及内在含义，句中往往有but,otherwise, unfortunately等类似转折词。without, but. but for, otherwise引起的短语或句子常暗含着含蓄条件。例如：Without you,1 would never know h
