1、主谓一致
the number of谓语动词用单数
An umber of,谓语动词用复数
some,plenty of,a lot of,谓语动词根据所修饰的词而定
a quantity of谓语动词用单数;large quantities of谓语动词用复数
2、as... as...引导的比较级
(1)"as +形容词或副词原级+as+被比较对象"结构。例句: He studies as hard asyou.他像你一样学习努力
(2)在否定句或疑问句中可用not so...as. 例句: He can not run so/as fast as you他没你跑得快
3、used to do过去常常做某事
get/become/be used to doing sth.习惯于
be used to do被用来做某事
4.部分倒装:否定词前置4、
(1)hardly/scarcely... when...
例甸: Hardly had she gone out when a student came to visit her.她刚一出门,一个学生就来拜访她。
2)no sooner... than...
例句: No sooner had the game begun than it began to rain heavily.比赛刚一.开始就
下起了雨。
5、名词修饰语
(1)只修饰可数名词(each、every、a great many)
(2)只修饰不可数名词(little、a little、a large amount of)
(3)都可以修饰(some、a lot of、plenty of)。
2、谓语动词就近原则:
either.or./neither...nor./not only...but also...谓语动词和靠近的主语一致(常考
6、强调句型:
It is/was被强调的部分that/who句子剩余部分,和定语从句的区别:Itwas8when I left home.(定语从句)
7、only引导的倒装句型: only +状语(或状语从句)位于句首时,句子部分倒装。
例句: Only by diligence and honesty can one succeed in life.只有勤奋、正直,一个人在生活中才能成功。
注意:但only修饰主语时,不倒装。例句:Only that girl knew how to work out the problem.只有那位女姓知道怎样解那道题。
8、名词的单复数
(1)规则变化+s/es
(2)不规则变化(mouse-mice)