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初一上册英语预习知识点(2)

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  初一上册英语重点语法预习知识点

  一、特殊疑问句:

  以疑问代词what, who, whom, whose, which或疑问副词when, where, why, how等放在句首提问的句子,叫特殊疑问句。答句必须针对问句中的疑问词来回答。

  (一)各种疑问词的用法:

  1.what用于对句子的主语、宾语、表语提问。用于提问“事情、东西”,还可以提问“姓名、职业、时间”等。

  如:what’s your name?

  2.Who, whom, whose只能指人,who“谁”,常作主语,whom“谁”,常作宾语,whose“谁的”,常作定语或表语。

  Who taught you English last year? 去年哪个老师教你们英语?

  Whose father works in Beijing? 谁的爸爸在北京工作?

  3.which用来询问人或物,一般有特定的选择范围。

  Which is your sister of the two girls?

  那两个女孩中,哪个是你姐姐?(限定在这两个女孩中)

  4.when, where, why, how分别对时间、地点、原因和方式

  When did you arrive here? 你什么时候到这里的? (对时间)

  Where were you last night? 你昨晚在哪里? (对地点)

  Why were you late again? 你怎么又迟到了? (对原因)

  How do you go to school? 你怎样上学的? ——by school bus(对方式)

  注意:

  ①when与what time的区别:when指的是大体的时间,而what time询问的是具体的时间。

  --What time shall we meet? -- At ten o’clock.

  --When shall we meet? --Tomorrow.

  ②how many用于询问“多少”,且后面接可数名词复数。——提问数量

  how much用于提问“多少”,后面接不可数名词,也可对“钱”提问。——提问不可数名 词的数量和价格。

  ③ how old用于提问年龄“多大岁数”;对应名词“age”

  how long用于提问时间或长度“多长时间,长度多长”,回答用“for+一段时间”;对应“leight”。

  how soon用于提问时间“还要多久”,回答用“in+一段时间”;

  how far提问距离“有多远”;how often用于提问频率“多长时间一次”。

  How tall提问高度: How tall are you? = What is your height?(对应 height)

  How often 提问“多久一次。 ”

  (二)句型结构:

  1.如疑问词作主语或主语的定语,即对主语或主语的定语提问,其语序是陈述句的语序:

  疑问词(+主语)+谓语动词+其他成分。

  如: Who is there?谁在那儿?

  Which book is his?哪本书是他的?

  2.如疑问词作其他成分,即对其他成分提问,其语序是:疑问词+一般疑问句语序?

  (1)疑问词+be+主语+其他? 如:who is your teacher?

  (2)疑问词+助动词+主语+行为动词(其他)?

  如:What does your father do? Why do you like English。

  (三)回答:不能用yes / no,即问什么答什么,尤其是简略回答。

  如: -How old is your sister? 你妹妹今年多大了?

  -She’s only five. / Only five. (她)才5岁。

  (四)对划线部分提问规则:

  第一步,找准特殊疑问词。

  第二步,提前或加助动词:(BE动词 am is are was were,情态动词can could may

  must will would shall should, 助动词(完成时中)have has had.)

  第三步,作变化抄剩余词。(主语时态的变化,如I变You ;前边加does do,后边动词用原形.)

  1.He is thirteen years old.(对划线提问)

  A:找准疑问词:How old B:提前BE动词 : is

  C:抄剩余词: he 即:How old is he?

  2 They went to work yesterday morning.

  A:找准疑问词: When B:加助动词:(过去时) did

  C:作变化(将went 变为go)并抄剩余词: they go to work.

  即:When did they go to work?

  3 . Her mother goes to school by bike.

  A:找准 特殊疑问词:How B:加助动词(三单时): does

  C:作变化(goes—go) 抄剩余词: her mother go to school

  即:How does her mother go to school?

  二、不定冠词的用法

  不定冠词有a 和an两个,泛指“一”的概念,但并不强调数量,只表示名词为不特定者,且仅用在单数可数名词前。

  1.a用于发音以辅音音标(不是以辅音字母)开头的单词前面; My mother is a doctor.

  2.an用于发音以元音音标(不是元音字母)开头的单词前面。 My father is an engineer.

  An actor; a doctor ; an apple ; a pen ; an egg

  ①表示“一”,用于可数名词的单数形式前。 The company needs a worker.

  ②表示“一类”,指一类人或事物,用在可数名词单数前。 An elephant is bigger than a cat.

  ③某示“某一个”,不具体指明是何人何物。 A teacher wants to see you.

  ④表示“每一”。 We work five days a week.

  ⑤表示“第一次提到”;首次提到人或物,但不特别指明是哪一个。

  Long long ago, there was a king.

  ⑥用于固定词组中: a few一些(加可数名词) a little一些(加不可数名词)

  a lot of许多 a great deal of 大量 a moment ago刚才

  a piece of 一片 have a cold感冒 have a try试一试

  in a word总之 in a hurry匆忙地 after a while过了一会儿


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