介词用法讲解
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Your work is beyond all praise, so good that it can't be praised enough. 你的成绩是赞扬不尽的。
That is going beyond a joke, passes the limits of what is reasonable as a joke. 那样开玩笑太过火了。
They were touched beyond words. 他们被感动得无法形容。(无)
To do this was quite beyond all doubts. 办这事我无能为力。(超出)
This is inevitable and beyond all doubts. 这是必然的，毫无疑义的。(无)
另外, Beyond two cottages stood his house.
句子中的beyond 是"那边"的意思。
against 靠着，对与反
例: In front of the wardrobe there are two upholstered armchairs arranged against the south wall near the
door. 立柜前面是两把沙发椅，靠着南城门附近。（靠着）
She leaned wearily against the railings. 她疲惫地靠着栏杆站着。(靠着)
A new president was elected by a majority of 274 votes against 110. 新总统以274 票对110 票的多数当雪(对……)
besides, except 分内外，among 之内along 沿
例：The design has many other advantages besides lower cost. 除费用低外，该设计还有许多其他优点。(优点包括在内)
He had no time to prepare his lecture, besides which he was unwell. 他没有时间准备讲稿，而且他的身体也不大舒适。
Every one of us, except her, went to see the exhibition. 除她外，我们都去参观了展览会。
He gets up early every day except Sunday. 除星期日外他每天早起。
Nobody was late except me. 除我以外，没人迟到。
同类比较except，加for 异类记心间。
He's composition is good, except for some spelling mistakes. 他的这篇作文写得很好，只是有几处拼写错误。(非同类比较用except for)
She was all alone in the world except for an old aunt. 除了有一个老姑妈，她别无亲人。
Anna felt disappointed when she found out they had gone swimming without her. (without＝except) 当安娜发现除她外，他们都去游泳了，她感到很失望。
Lion Head Hill is not worth seeing except for its old temples. 除了那些古寺以外，狮头山没什么可看的。
Among other things, we are interested in drawing. 我们对图画和别的一些东西很感兴趣。(among之内即包括在内)
原状because of, owing to, due to 表语形容词
例：Owing to our joint efforts, the task was fulfilled ahead of schedule. 由于我们的共同努力，任务提前完成了。
注：Owing to 和because of 都做原因状语，而due to 只能做表语形容词。所以此句。owing to 的介词短语做原因状语。
AII our achievements are due to the correct leadership of our Party. 我们的一切成绩都归功于党。(due to 做表语形容词)
under后接修、建中，of，from 物化分
例：The road is under repair now． 这条路正在修建中。
The now railway is stil under construction. 新铁路尚在修筑中。(不能用in)
under discussion 在讨论中(不能用in) under considerat 在考虑中(不能用in)
The desk is made of wood. 桌子是木头做的。(物理变化用of)
The wine is made from grape. 这种酒是用葡萄酿造的。(化学变化)
The bridge is made of steel. 这座桥是钢制的。(物理变化)
Steel is made from iron. 钢是由铁炼成的。(化学变化)
before, after 表一点，ago, later 表示一段
即before, after 常表示一个点的时间状语，而ago，later 常表示一段的时间状语。
例如：前天the day before yesterday;前年the year before last; 大上星期the week before last 等等都表示点状语的。
要想准确无误地使用好before 和ago, after 和later 比较困难，但要是以"点"和"段"来区别就容易得多。
例：晚饭前before supper
解放前before liberation
1970 年前before 1970
文革前before cultural revolution
国庆前before National Day
入大学前before coming to college
这些都是"点"状语，因为1970 年前即1970 年1 月1日前。国庆节即10 月1 日前。
ago 表示一段时间。
例：一分钟前a minute ago
半小时前half an hour ago
两天前two days ago
一星期前a week ago
五年前five years ago
因为a minute, half an hour, two days, a week, five years等都表示一段时间，所以用ago。以及ten days later 等皆如此。
before 可接完成时，ago 过去级有限
这时的before 是连词(也可做介词)
例：We had scarcely left our school before it began to rain. 我们刚离开学校，天就下雨了。(完成时)
I had studied French for four months before I came here. 我来这儿以前就已学了四个月法语了。(before 接完成时)
He fell ill three days ago. 他病了三天了。(ago 则只能接动词过去式，同时注意瞬间动词的问题。)
He left two months ago. 两个月前他离开了。（同上)
I met her a few minutes ago. 我在几分钟前碰到他了。(同上)
since以来during 间，since 时态多变换
与之相比beside, 除了last but one。
即beside 的一般用法是"在......旁边", 但还有"和......相比"等特殊用法。
例：I feIt so weak in spoken English beside them. 和他们相比，我感到我的口语太差。
Beside work and study, all else was trivial. 同工作和学习比起来，其他一切都是小事。
除了last but one，即but 多指"除了"的意思，也有"倒数第几"的意思。last but one 即不是最后一个。
例：I haven't told anybody but one. 除了我爱人，我谁也没告诉。(除了)
Who but a fool would study foreign language well if he is a hard working one. 如果他勤奋好学的话，除了傻瓜谁都能学好外语。(除了)
Look at the last page but one. 请看倒数第2页。
He was the last but three in maths examination this time. 他这次数学考试成绩倒数第四。
- 考试辅导
