最后10个重要语法,快来看看你懂弄懂了吗?
29、It was + 时间段+before…."过了多久才……"
It was not long before…."不久,就……"
It will (not) be +时间段+before…."要过多久(不久)……才……"(before从句谓语动词要用一般时态)
30. as if/though+主语+did/had done…好像……(表示现在或将来的情况用过去时;表示过去的情况用过去完成时)
[例句]Our head teacher treats us as if we were her own children, so all the students in our class think highly of her.
31、as, though, although引导的让步状语从句
although位于句首;though位于句首或句中;as位于句中=though。它的词序是把句中强调的形容词、副词、动词或名词放在连词前。
32、in case of…(+n.) "以防;万一"
in case that…"以防,万一……"(谓语动词用一般现在时态或should+动词原形)
33、全部倒装句的常见结构
here, there, now, then, thus等副词置于句首, 谓语动词常用be, come, go, lie, run。
Eg:There goes the bell.
表示运动方向的副词或地点状语置于句首,谓语表示运动的动词。
Out rushed a missile from under the bomber.
34、部分倒装句的结构和用法
把“so ... that ...”句型中的“so + 形容词 / 副词”部分放在句首时,be动词或助动词放在主语前面。
eg:So frightened was the girl that she daren't move an inch further.
用so,neither或nor构成的特殊句型,表示另一人或物也具有和前面提到的同样情况时,出现部分倒装。
eg:Jim asked the question. So did Lily.
把具有“否定”意义的词语放在句首时,出现部分倒装。eg:Never shall I forget your advice.
35、特殊情形倒装
“only + 状语从句”和“not until + 从句”位于句首时,在主句中进行倒装。
eg:Not until the child slept did the mother leave the room.
“not only...but also...”连接两个分句,not only位于句首时,倒装在not only所在分句进行。如:Not only were the children moved but also the adults showed their pity.
“no sooner...than...”句型中的no sooner位于句首时,倒装在no sooner 主句中进行;“hardly / scarcely...when...”句型中的hardly位于句首时,倒装在hardly / scarcely主句中进行。
36、should+动词原形的虚拟结构
在这个情况下,宾语从句需要使用should+动词原形,口诀:一、二、四、四:
一个坚持(insist)
两个命令(order、command)
四个建议(suggest、propose、recommend、advise)
四个要求(demand、require、request、desire)
I suggest you should have enough sleep.
37、by的用法
在…旁边: stand by me
靠、通过某种手段、交通工具:by bus
按照:It is 8 by my watch.
在…之前、不迟于:Can you return the book by Monday?
被、由用于被动语态:written by JK.Rowling
38、for的用法
为了、给(表示目的)
历经(时间、距离)for a month
以…代价/价钱交换
支持赞成,反义词against