The room is twice as big as that one. The room is twice bigger than that one.
The room is twice the size of that one. The well is three times the depth of that one.
★ While 的总结用法：1. 当…的时候；2. 而，却；3. 趁着；4. 只要；5.虽然，尽管。
专四语法考点串讲之五 倒装句 ★倒装考点口诀
倒装两大类，全倒部分倒； 主倒从不倒;
全倒分两种：副词、地点介短在句首; 部分倒装分六种:
否定副词在句首，only加状在句首，
so ... that结构so提前，承前否定/肯定neither nor/so, 状语从句as/ though，省去if虚拟句 一、全部倒装
1. 在以here、there、now、then、off、away等副词开头的句子里。
(1) The birds flew away. →Away flew the birds. (2) The rain came down. →Down came the rain. 2. 表示地点的介词短语位于句首时。
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（1）山脚下有一个美丽的湖。At the foot of the hill lies a beautiful lake.
（2）教室外面站着一个男孩。Outside the classroom stood a boy.
二、部分倒装
1. Only+状语位于句首时
(1) He only found it important to get along with others then.
→Only then did he find it important to get along with others.
We can only make great progress in this way. →Only in this way can we make great progress. 2. 否定副词及短语位于句首时。
常考的这类词或词语有：not, seldom, hardly, little, nowhere, by no means, in no time等 。
I have never seen such a beautiful place. →Never have I seen such a beautiful place. 3. 在省略if的虚拟条件从句中。 （1）如果我是你，我会努力学习。
Were I you, I would work hard. （2）如果明天下雨的话，我们就延迟会议。
Should it rain tomorrow, we would put off our meeting.
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（3）假如他听从了我的建议，他早就 成功了。
Had he followed my advice, he would have succeeded. 4、so\\ neither\\ nor 位于句首的情况。
1.So + 助动词 +主语 …也一样。So + 主语 + 助动词 …确实如此。
2.Neither 和 Nor 用于否定句，表示“ 也不，也没有”。
Neither\\ Nor +助动词+主语 5、as/though引导的让步状语从句
名词\\形容词\\副词\\动词+as\\though+主语+其他
6、 在“so + adj./adv. + that…”句式中，将“so + adj./adv. ”放在句首时的倒装。
So hard does he work that he has made great progress in English.
★特殊倒装句型：
not only … but also… 句式的倒装
Not only is he interested in football but also he plays it well.
(前倒后不倒) 考点倒装四注意：
1、as/ though从句的表语是名词，倒装后其名词前不加任何冠词 ;
As he is a child---child as he is
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2、if 虚拟句 Were it not...或者Had it not been..., 但不可以说Weren? t it... 或者hadn?t it been...（not 不提前）
3、承前肯定so, 只能指定一件事情，两件事情用 so it is(the same) with sb
4、So + 助动词 +主语：也一样 So + 主语 + 助动词：的确如此
专四语法考点串讲之六 小语法点 一、反义疑问句的考点聚焦：
1)陈述部分的主语是I，疑问部分要用 aren't I. I am a student, aren?t I
2)陈述部分的谓语是wish，疑问部分要用may +主语 I wish to have a word with you, may I?
3)陈述部分用 no, nothing, nobody, never, few, seldom, hardly, rarely, little等否定含义的词时，疑问部分用肯定含义。 Some plants never blown (开花), do they ?
4) 否定前缀不能视为否定词，其反意疑问句仍用否定形式It is impossible, isn't it?
5)must在表示\推测\时，根据其推测的情况来确定反意疑问句。 He must be a doctor, isn't he?
You must have studied English for three years, haven't you?
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He must have finished it yesterday, didn't he? It must be going to rain tomorrow, won't it?
6)省去主语的祈使句的反意疑问句，疑问部分用will you。 Don't do that again, will you? Go with me, will you / won't you ? 7) 复合句的反疑疑问句
A .带有定语从句，宾语从句的主从复合句，疑问部分谓语根据主句的谓语而定：
He is not the man who gave us a talk, is he?
B上述部分主句谓语是I /we think, believe, expect, suppose, imagine 等引导的宾语从句，疑问部分与宾语从句相对应构成反意疑问句。 I don't think he is bright, is he? 二、主谓一致的考点聚焦
1）?就远原则??主语＋介词短语等?作主语
在“A +(with, together with, along with, as well as, but, except, besides, like, including, rather than, more than, no less than)+B”结构中，谓语动词的单复数与之B一致。
2）就近原则neither?nor?, (either)?or?, not only?but also?, not?but?等并列结构作主语时采取就近原则：谓语动词的数由与其最接近的那个主语的数决定。 3）“a / the number of＋复数名词”作主语
表示“…的数量”的“the number of +复数名词”作主语时，谓语动词用单数；表示“一些 / 许多…”的“a number of +复数名词”作主
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