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初中英语语法知识考查要点(2)

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③ 劣级比较
?less+形容词/副词原级+than
?例: She is less beautiful than Mary.
?④ 两者之间用比较级,在比较级前加定冠词,三者以上用最高级
?例: He is the taller of the two.?
She is the best player of the three.
?⑤ 越……越……的表达法
?例: The days are getting hotter and hotter.
?The more you study, the more you learn.
?⑥ 修饰比较级的词有:much, by far, even, a little, a great deal…
?例: She is much better now.
?? 切记不要用比较级来修饰比较级。
3. 连词
?(1) 动词与靠近的主语一致:
?这样的连词有: or, either…or, neither…nor, not only…but also。
?(2) or的用法:
?① 作或者讲
?例: You or your friend has to go to the teachers’ office.
?② 作否则讲
?例: Hurry up, or you will be late for school.
?(3) and与but:
?例: He has no money and he is poor.?
 He is poor but he is honest.
4. 介词
?(1) 表示时间:
?at: 表示某一时间点
?如: at noon
?on: 表示特定的日子
?如: on Christmas
?in: 表示一段不具体的时间
?如: in the morning, in the Second world war
?? 如表示在某一特定的早上、下午则用on
?如: on a cold morning, on a hot afternoon, on Sunday morning
?during: 表示期间内的某个时期
?如: during the night, during the Second World War
?for: 其后接表示一段时间长度的词
?如: for three days
?through: 表示在整个期间没有间歇
?例: It snowed through the night.
?till/until: 表示动作持续的终点
?例:I studied hard till twelve o’clock last night.
?by: 表示动作完成期限
?例: I’ll be back by five o’clock.
?since: 表示某动作的起始点
?例:I have studied English since 1990.
?(2) 表示地点:
?at: 表示较小的地点
?如: arrived at the school gate
?in: 表示较大的地点
?如: arrived in Shanghai
?for: 表示目的地
?例: I’ll leave for Shanghai.
?above: 表示上面,上方,其反意词是below
?over: 表示垂直上方,其反意词是under
?例: The dog jumped over the table.
?through: 表示穿过
?如: through the forest
?across: 表示平原上的跨越
?例: I want to walk across the road.

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