quite/rather+a/an(+形容词+名词
●I had quite/rather an easy test yesterday.
我昨天的考试很简单。
all/both/double/half/twice等+the+名词
●All the students in the class went out.
班里所有的学生都出去了。
you+he/she+I用于多个单数人称并列的场合。
●You and I have done our best.
我和你都已经尽全力了。
we十you+they用于多个复数人称并列的场合。
●We,youand theyare all Chinese.
我们、你们和他们都是中国人。
he+she用于男、女两性并列的场合。
●He and she don't agree with me.
他和她不同意我的看法。
It+be/get+形容词/名词/介词短语 it用作非人称代词时，常表示天气、日期、时间、距离、温度等。
●It gets colder and colder.
天气变得越来越冷。
It+be4被强调部分+that...构成强调句，强调句子的主语、宾语、状语。被强调部分指人时，that可以换成who，其他情况一律用that。
●It was not until I came here that I realized this place was famous for not only itsbeauty but also its weather.
直到我来到了这里我才意识到这个地方不仅以美景闻名，而且它的天气也很有名。
It+be+形容词(+for sb.)+to do sth.
●It is very important for us to master the skills of computers.
对于我们来说，掌握计算机技能是非常重要的。
It+be+no use/nogood+doing sth.意为“做...是没用的”，动名词是真正的主语，it是形式主语。
●It is no good turning to him. He is always indifferent towards others' matters.
向他求助没用，他对别人的事总是漠不关心。
It+be+过去分词+that从句
●It is required in the regulations that you should not tellother people the passwordof your e-mail account.
按照规定你不能把自己电子邮箱的密码告诉别人。
10个月宝宝每天需要喝多少奶粉？
