用法(1)a friend of mine是不定冠词a+名词friend+介词of+名词性物主代词mine结构。其中的friend可以用其他名词代替,名词性物主代词mine可以替换为名词的所有格。例如:① He is a friend of mine.他是我朋友中的一个。② He is a teacher of my sisters.他...[继续阅读]

    用法after all可以是副词短语。在句末时,表示的结果与预想的不同;在句首时,用于加强语气,导出原因。例如:① It has turned out to be a nice day after all.天气终于转晴了。② So you see he was right after all!你看,毕竟还是他对吧!知识拓展after和b...[继续阅读]

    用法against time是介词against+名词time结构。against是介词,主要表示“反对;违反”之意;其次还表示“逆;对着;倚;靠;以……为背景”之意。against time中的time可以换作其他词。例如:① They were working against time.他们在分秒必争地工作。② ...[继续阅读]

    用法a good place to have fun中的不定式to have fun用作定语,修饰名词短语a good place。不定式作定语通常放在被修饰的词后。have fun可以用其他动词替换。例如:① Sanya is a good place to have fun.三亚是个好玩的地方。② I have a lot of work to do.我有...[继续阅读]

    近义短语be in agreement with sb.反义短语disagree with sb.用法agree with sb.是动词短语。agree作不及物动词,表示“同意;持相同意见”之意。agree with sb.表示“同意某人的话/意见;某物/某事适应某人”之意。disagree with sb.是agree with sb.的反义短语...[继续阅读]

    用法aim at是动词aim+介词at结构,其含义较多。(1)aim at表示“以……为目标;瞄准”之意。例如:① The hunter aimed at a wolf.猎手瞄准了狼。② The factory must aim at increasing production.工厂应该以增加生产为目的。(2)aim at表示“以(枪等)瞄准/对准...[继续阅读]

    用法a kind of是表示种类的短语,其中的kind指品种或种类。通过改变a和kind,可以把a kind of转换成其他结构:this kind of(这种),that kind of(那种),what/which kind of(哪种),these kinds of(这几种),those kinds of(那几种),all kinds of(=different kinds of=many kinds o...[继续阅读]

    近义短语all day long　the whole day反义短语all night　the whole night用法(1)all day指白天十二小时,all night指晚间十二小时。(2)all day和all night都是习语,前面不用冠词,但可以表示为all the day 和all the night。(3)all day = all day long = the whole day,all ni...[继续阅读]

    近义短语around the world用法all over the world是副词短语,在句中作地点状语,可以与around the world互换。例如:① English is spoken all over the world/around the world.世界各地都在讲英语。② I also want to travel all over the world/around the world.我也想周游世界...[继续阅读]

    用法allow sb.to do sth.是动词allow+宾语sb.+宾语补足语to do sth.结构,通常用于被动语态。其中的allow是及物动词,表示“许可;允许”之意,后面接名词、代词、动名词或从句作宾语(当动词作宾语时,动词不能用不定式结构,而用-ing形式)。例如...[继续阅读]