GMAT语法讲解：状语从句

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状语从句的省略:

a)正确形式:

表示时间/条件/转折/让步的连词(when/while/if/unless/although/even though/even if) + 形容词短语/-ing短语/-ed短语

(逻辑主语等于句子主语) (所以when a child/ when children是错的; if + n.也是错的)

b)错误形式:表示时间/条件/转折的连词 + 介词短语/名词短语 (although just inside the orbit of Jupiter是错的)(OG10-69)

c)特殊情况:once可以加介词短语/名词短语; whatever可以加名词短语

d) 状语从句省略的'条件：

第一点是毫无疑问的：逻辑主语等于句子主语

第二点也是必须的：从句的谓语必需是be(没要求主句谓语也必须是be!换句话说可以看成是省略了一个be)，且从句主语和谓语要么同省，要么同留。

　　pronounce固定搭配

pronounce sb/sth (as) sth/adj:

The victim was pronounced dead on arrival.

I now pronounce you man and wife.

amount

　　不能修饰可数名词

The amount of unemployed capital is very large.

未被利用的资金数量很大。

The railroad gives free transportation for a certain amount of baggage.

铁路免费运送的行李是有一定数量的。

It all amounts to a lot of hard work.

那一切意味着大量艰苦工作。

economic和economical

economic 是”经济上的”，economical是”节约的”。

1)economic [only before noun]PE relating to trade, industry, and the management of money

Economic growth is slow.

the government's economic policy

Economic reform is needed.

In the current economic climate (=conditions), we must keep costs down

2) economical =cheap or not wasteful.

possibility的固定搭配:

possibility (that)

There's always a possibility that he might go back to Seattle.

possibility for/of (doing) something

exciting possibilities for reducing costs

Archer began to explore the possibilities of opening a club in the city.

错误搭配：possibility to do sth.

　　view固定搭配：

view sth. as sth.

而view sth. to be sth.错误。

announce固定搭配：

(1) announce something to somebody 或者 announce to somebody something (相当于宾语后置)

(2) announce a decision/intention/plan (在这个时候如果plan等后面接to do不会产生to do做状语修饰announce的歧义)*:The government has announced plans to create 10,000 new jobs.

(3) announce (that)

(4) announce somebody/yourself 通报...的到达;通知...已准备好(注意这个短语有专门意思)

　　错误用法：

(1) announce to do/be sth. 【错误】

limit的固定搭配：

n. : limit on sth.; limit to do sth.; limit for sb./sth.

There's a limit on the time you have to take the test.

The time limit for making claims is three months.

There's no age limit for applicants.

There's a limit to what we can do to help.

vt.: limit sb. to sth.; limit sth. (to sth.); be limited to sth